diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-04-26 22:11:52 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-04-26 22:11:52 +0300 |
| commit | 37f00ab4a003f371f81e0eae76cf372f06dec780 (patch) | |
| tree | c6217483f22a0fac876f12af53f4b8948200f2fd /drivers | |
| parent | 2b90506a8186df5f7c81ad1ebd250103d8469e27 (diff) | |
| parent | 5ffa828534036348fa90fb3079ccc0972d202c4a (diff) | |
| download | linux-37f00ab4a003f371f81e0eae76cf372f06dec780.tar.xz | |
Merge tag 'arm-drivers-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC driver updates from Arnd Bergmann:
"Updates for SoC specific drivers include a few subsystems that have
their own maintainers but send them through the soc tree:
TEE/OP-TEE:
- Add tracepoints around calls to secure world
Memory controller drivers:
- Minor fixes for Renesas, Exynos, Mediatek and Tegra platforms
- Add debug statistics to Tegra20 memory controller
- Update Tegra bindings and convert to dtschema
ARM SCMI Firmware:
- Support for modular SCMI protocols and vendor specific extensions
- New SCMI IIO driver
- Per-cpu DVFS
The other driver changes are all from the platform maintainers
directly and reflect the drivers that don't fit into any other
subsystem as well as treewide changes for a particular platform.
SoCFPGA:
- Various cleanups contributed by Krzysztof Kozlowski
Mediatek:
- add MT8183 support to mutex driver
- MMSYS: use per SoC array to describe the possible routing
- add MMSYS support for MT8183 and MT8167
- add support for PMIC wrapper with integrated arbiter
- add support for MT8192/MT6873
Tegra:
- Bug fixes to PMC and clock drivers
NXP/i.MX:
- Update SCU power domain driver to keep console domain power on.
- Add missing ADC1 power domain to SCU power domain driver.
- Update comments for single global power domain in SCU power domain
driver.
- Add i.MX51/i.MX53 unique id support to i.MX SoC driver.
NXP/FSL SoC driver updates for v5.13
- Add ACPI support for RCPM driver
- Use generic io{read,write} for QE drivers after performance
optimized for PowerPC
- Fix QBMAN probe to cleanup HW states correctly for kexec
- Various cleanup and style fix for QBMAN/QE/GUTS drivers
OMAP:
- Preparation to use devicetree for genpd
- ti-sysc needs iorange check improved when the interconnect target
module has no control registers listed
- ti-sysc needs to probe l4_wkup and l4_cfg interconnects first to
avoid issues with missing resources and unnecessary deferred probe
- ti-sysc debug option can now detect more devices
- ti-sysc now warns if an old incomplete devicetree data is found as
we now rely on it being complete for am3 and 4
- soc init code needs to check for prcm and prm nodes for omap4/5 and
dra7
- omap-prm driver needs to enable autoidle retention support for
omap4
- omap5 clocks are missing gpmc and ocmc clock registers
- pci-dra7xx now needs to use builtin_platform_driver instead of
using builtin_platform_driver_probe for deferred probe to work
Raspberry Pi:
- Fix-up all RPi firmware drivers so as for unbind to happen in an
orderly fashion
- Support for RPi's PoE hat PWM bus
Qualcomm
- Improved detection for SCM calling conventions
- Support for OEM specific wifi firmware path
- Added drivers for SC7280/SM8350: RPMH, LLCC< AOSS QMP"
* tag 'arm-drivers-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (165 commits)
soc: aspeed: fix a ternary sign expansion bug
memory: mtk-smi: Add device-link between smi-larb and smi-common
memory: samsung: exynos5422-dmc: handle clk_set_parent() failure
memory: renesas-rpc-if: fix possible NULL pointer dereference of resource
clk: socfpga: fix iomem pointer cast on 64-bit
soc: aspeed: Adapt to new LPC device tree layout
pinctrl: aspeed-g5: Adapt to new LPC device tree layout
ipmi: kcs: aspeed: Adapt to new LPC DTS layout
ARM: dts: Remove LPC BMC and Host partitions
dt-bindings: aspeed-lpc: Remove LPC partitioning
soc: fsl: enable acpi support in RCPM driver
soc: qcom: mdt_loader: Detect truncated read of segments
soc: qcom: mdt_loader: Validate that p_filesz < p_memsz
soc: qcom: pdr: Fix error return code in pdr_register_listener
firmware: qcom_scm: Fix kernel-doc function names to match
firmware: qcom_scm: Suppress sysfs bind attributes
firmware: qcom_scm: Workaround lack of "is available" call on SC7180
firmware: qcom_scm: Reduce locking section for __get_convention()
firmware: qcom_scm: Make __qcom_scm_is_call_available() return bool
Revert "soc: fsl: qe: introduce qe_io{read,write}* wrappers"
...
Diffstat (limited to 'drivers')
112 files changed, 4274 insertions, 1622 deletions
diff --git a/drivers/bus/qcom-ebi2.c b/drivers/bus/qcom-ebi2.c index 03ddcf426887..0b8f53a688b8 100644 --- a/drivers/bus/qcom-ebi2.c +++ b/drivers/bus/qcom-ebi2.c @@ -353,8 +353,10 @@ static int qcom_ebi2_probe(struct platform_device *pdev) /* Figure out the chipselect */ ret = of_property_read_u32(child, "reg", &csindex); - if (ret) + if (ret) { + of_node_put(child); return ret; + } if (csindex > 5) { dev_err(dev, diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c index da568a310052..5fae60f8c135 100644 --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -288,7 +288,7 @@ static int sysc_add_named_clock_from_child(struct sysc *ddata, * limit for clk_get(). If cl ever needs to be freed, it should be done * with clkdev_drop(). */ - cl = kcalloc(1, sizeof(*cl), GFP_KERNEL); + cl = kzalloc(sizeof(*cl), GFP_KERNEL); if (!cl) return -ENOMEM; @@ -1648,7 +1648,7 @@ static u32 sysc_quirk_dispc(struct sysc *ddata, int dispc_offset, case SOC_UNKNOWN: default: return 0; - }; + } /* Remap the whole module range to be able to reset dispc outputs */ devm_iounmap(ddata->dev, ddata->module_va); @@ -2905,7 +2905,7 @@ static int sysc_init_soc(struct sysc *ddata) break; default: break; - }; + } } match = soc_device_match(sysc_soc_feat_match); diff --git a/drivers/char/ipmi/kcs_bmc_aspeed.c b/drivers/char/ipmi/kcs_bmc_aspeed.c index a140203c079b..eefe362f65f0 100644 --- a/drivers/char/ipmi/kcs_bmc_aspeed.c +++ b/drivers/char/ipmi/kcs_bmc_aspeed.c @@ -27,7 +27,6 @@ #define KCS_CHANNEL_MAX 4 -/* mapped to lpc-bmc@0 IO space */ #define LPC_HICR0 0x000 #define LPC_HICR0_LPC3E BIT(7) #define LPC_HICR0_LPC2E BIT(6) @@ -52,15 +51,13 @@ #define LPC_STR1 0x03C #define LPC_STR2 0x040 #define LPC_STR3 0x044 - -/* mapped to lpc-host@80 IO space */ -#define LPC_HICRB 0x080 +#define LPC_HICRB 0x100 #define LPC_HICRB_IBFIF4 BIT(1) #define LPC_HICRB_LPC4E BIT(0) -#define LPC_LADR4 0x090 -#define LPC_IDR4 0x094 -#define LPC_ODR4 0x098 -#define LPC_STR4 0x09C +#define LPC_LADR4 0x110 +#define LPC_IDR4 0x114 +#define LPC_ODR4 0x118 +#define LPC_STR4 0x11C struct aspeed_kcs_bmc { struct regmap *map; @@ -348,12 +345,20 @@ static int aspeed_kcs_probe(struct platform_device *pdev) struct device_node *np; int rc; - np = pdev->dev.of_node; + np = dev->of_node->parent; + if (!of_device_is_compatible(np, "aspeed,ast2400-lpc-v2") && + !of_device_is_compatible(np, "aspeed,ast2500-lpc-v2") && + !of_device_is_compatible(np, "aspeed,ast2600-lpc-v2")) { + dev_err(dev, "unsupported LPC device binding\n"); + return -ENODEV; + } + + np = dev->of_node; if (of_device_is_compatible(np, "aspeed,ast2400-kcs-bmc") || - of_device_is_compatible(np, "aspeed,ast2500-kcs-bmc")) + of_device_is_compatible(np, "aspeed,ast2500-kcs-bmc")) kcs_bmc = aspeed_kcs_probe_of_v1(pdev); else if (of_device_is_compatible(np, "aspeed,ast2400-kcs-bmc-v2") || - of_device_is_compatible(np, "aspeed,ast2500-kcs-bmc-v2")) + of_device_is_compatible(np, "aspeed,ast2500-kcs-bmc-v2")) kcs_bmc = aspeed_kcs_probe_of_v2(pdev); else return -EINVAL; diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig index a588d56502d4..1d1891b9cad2 100644 --- a/drivers/clk/Kconfig +++ b/drivers/clk/Kconfig @@ -394,6 +394,7 @@ source "drivers/clk/renesas/Kconfig" source "drivers/clk/rockchip/Kconfig" source "drivers/clk/samsung/Kconfig" source "drivers/clk/sifive/Kconfig" +source "drivers/clk/socfpga/Kconfig" source "drivers/clk/sprd/Kconfig" source "drivers/clk/sunxi/Kconfig" source "drivers/clk/sunxi-ng/Kconfig" diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile index b22ae4f81e0b..9b582b3fca34 100644 --- a/drivers/clk/Makefile +++ b/drivers/clk/Makefile @@ -104,9 +104,7 @@ obj-y += renesas/ obj-$(CONFIG_ARCH_ROCKCHIP) += rockchip/ obj-$(CONFIG_COMMON_CLK_SAMSUNG) += samsung/ obj-$(CONFIG_CLK_SIFIVE) += sifive/ -obj-$(CONFIG_ARCH_SOCFPGA) += socfpga/ -obj-$(CONFIG_ARCH_AGILEX) += socfpga/ -obj-$(CONFIG_ARCH_STRATIX10) += socfpga/ +obj-y += socfpga/ obj-$(CONFIG_PLAT_SPEAR) += spear/ obj-y += sprd/ obj-$(CONFIG_ARCH_STI) += st/ diff --git a/drivers/clk/bcm/clk-raspberrypi.c b/drivers/clk/bcm/clk-raspberrypi.c index f89b9cfc4309..dd3b71eafabf 100644 --- a/drivers/clk/bcm/clk-raspberrypi.c +++ b/drivers/clk/bcm/clk-raspberrypi.c @@ -314,7 +314,7 @@ static int raspberrypi_clk_probe(struct platform_device *pdev) return -ENOENT; } - firmware = rpi_firmware_get(firmware_node); + firmware = devm_rpi_firmware_get(&pdev->dev, firmware_node); of_node_put(firmware_node); if (!firmware) return -EPROBE_DEFER; diff --git a/drivers/clk/clk-scmi.c b/drivers/clk/clk-scmi.c index c754dfbb73fd..1e357d364ca2 100644 --- a/drivers/clk/clk-scmi.c +++ b/drivers/clk/clk-scmi.c @@ -2,7 +2,7 @@ /* * System Control and Power Interface (SCMI) Protocol based clock driver * - * Copyright (C) 2018 ARM Ltd. + * Copyright (C) 2018-2021 ARM Ltd. */ #include <linux/clk-provider.h> @@ -13,11 +13,13 @@ #include <linux/scmi_protocol.h> #include <asm/div64.h> +static const struct scmi_clk_proto_ops *scmi_proto_clk_ops; + struct scmi_clk { u32 id; struct clk_hw hw; const struct scmi_clock_info *info; - const struct scmi_handle *handle; + const struct scmi_protocol_handle *ph; }; #define to_scmi_clk(clk) container_of(clk, struct scmi_clk, hw) @@ -29,7 +31,7 @@ static unsigned long scmi_clk_recalc_rate(struct clk_hw *hw, u64 rate; struct scmi_clk *clk = to_scmi_clk(hw); - ret = clk->handle->clk_ops->rate_get(clk->handle, clk->id, &rate); + ret = scmi_proto_clk_ops->rate_get(clk->ph, clk->id, &rate); if (ret) return 0; return rate; @@ -69,21 +71,21 @@ static int scmi_clk_set_rate(struct clk_hw *hw, unsigned long rate, { struct scmi_clk *clk = to_scmi_clk(hw); - return clk->handle->clk_ops->rate_set(clk->handle, clk->id, rate); + return scmi_proto_clk_ops->rate_set(clk->ph, clk->id, rate); } static int scmi_clk_enable(struct clk_hw *hw) { struct scmi_clk *clk = to_scmi_clk(hw); - return clk->handle->clk_ops->enable(clk->handle, clk->id); + return scmi_proto_clk_ops->enable(clk->ph, clk->id); } static void scmi_clk_disable(struct clk_hw *hw) { struct scmi_clk *clk = to_scmi_clk(hw); - clk->handle->clk_ops->disable(clk->handle, clk->id); + scmi_proto_clk_ops->disable(clk->ph, clk->id); } static const struct clk_ops scmi_clk_ops = { @@ -142,11 +144,17 @@ static int scmi_clocks_probe(struct scmi_device *sdev) struct device *dev = &sdev->dev; struct device_node *np = dev->of_node; const struct scmi_handle *handle = sdev->handle; + struct scmi_protocol_handle *ph; - if (!handle || !handle->clk_ops) + if (!handle) return -ENODEV; - count = handle->clk_ops->count_get(handle); + scmi_proto_clk_ops = + handle->devm_protocol_get(sdev, SCMI_PROTOCOL_CLOCK, &ph); + if (IS_ERR(scmi_proto_clk_ops)) + return PTR_ERR(scmi_proto_clk_ops); + + count = scmi_proto_clk_ops->count_get(ph); if (count < 0) { dev_err(dev, "%pOFn: invalid clock output count\n", np); return -EINVAL; @@ -167,14 +175,14 @@ static int scmi_clocks_probe(struct scmi_device *sdev) if (!sclk) return -ENOMEM; - sclk->info = handle->clk_ops->info_get(handle, idx); + sclk->info = scmi_proto_clk_ops->info_get(ph, idx); if (!sclk->info) { dev_dbg(dev, "invalid clock info for idx %d\n", idx); continue; } sclk->id = idx; - sclk->handle = handle; + sclk->ph = ph; err = scmi_clk_ops_init(dev, sclk); if (err) { diff --git a/drivers/clk/socfpga/Kconfig b/drivers/clk/socfpga/Kconfig new file mode 100644 index 000000000000..0cf16b894efb --- /dev/null +++ b/drivers/clk/socfpga/Kconfig @@ -0,0 +1,19 @@ +# SPDX-License-Identifier: GPL-2.0 +config CLK_INTEL_SOCFPGA + bool "Intel SoCFPGA family clock support" if COMPILE_TEST && !ARCH_INTEL_SOCFPGA + default ARCH_INTEL_SOCFPGA + help + Support for the clock controllers present on Intel SoCFPGA and eASIC + devices like Aria, Cyclone, Stratix 10, Agilex and N5X eASIC. + +if CLK_INTEL_SOCFPGA + +config CLK_INTEL_SOCFPGA32 + bool "Intel Aria / Cyclone clock controller support" if COMPILE_TEST && (!ARM || !ARCH_INTEL_SOCFPGA) + default ARM && ARCH_INTEL_SOCFPGA + +config CLK_INTEL_SOCFPGA64 + bool "Intel Stratix / Agilex / N5X clock controller support" if COMPILE_TEST && (!ARM64 || !ARCH_INTEL_SOCFPGA) + default ARM64 && ARCH_INTEL_SOCFPGA + +endif # CLK_INTEL_SOCFPGA diff --git a/drivers/clk/socfpga/Makefile b/drivers/clk/socfpga/Makefile index bf736f8d201a..e8dfce339c91 100644 --- a/drivers/clk/socfpga/Makefile +++ b/drivers/clk/socfpga/Makefile @@ -1,7 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 -obj-$(CONFIG_ARCH_SOCFPGA) += clk.o clk-gate.o clk-pll.o clk-periph.o -obj-$(CONFIG_ARCH_SOCFPGA) += clk-pll-a10.o clk-periph-a10.o clk-gate-a10.o -obj-$(CONFIG_ARCH_STRATIX10) += clk-s10.o -obj-$(CONFIG_ARCH_STRATIX10) += clk-pll-s10.o clk-periph-s10.o clk-gate-s10.o -obj-$(CONFIG_ARCH_AGILEX) += clk-agilex.o -obj-$(CONFIG_ARCH_AGILEX) += clk-pll-s10.o clk-periph-s10.o clk-gate-s10.o +obj-$(CONFIG_CLK_INTEL_SOCFPGA32) += clk.o clk-gate.o clk-pll.o clk-periph.o \ + clk-pll-a10.o clk-periph-a10.o clk-gate-a10.o +obj-$(CONFIG_CLK_INTEL_SOCFPGA64) += clk-s10.o \ + clk-pll-s10.o clk-periph-s10.o clk-gate-s10.o \ + clk-agilex.o diff --git a/drivers/clk/tegra/clk-pll.c b/drivers/clk/tegra/clk-pll.c index c5cc0a2dac6f..0193cebe8c5a 100644 --- a/drivers/clk/tegra/clk-pll.c +++ b/drivers/clk/tegra/clk-pll.c @@ -2515,18 +2515,6 @@ static int clk_plle_tegra210_enable(struct clk_hw *hw) pll_writel(val, PLLE_SS_CTRL, pll); udelay(1); - val = pll_readl_misc(pll); - val &= ~PLLE_MISC_IDDQ_SW_CTRL; - pll_writel_misc(val, pll); - - val = pll_readl(pll->params->aux_reg, pll); - val |= (PLLE_AUX_USE_LOCKDET | PLLE_AUX_SS_SEQ_INCLUDE); - val &= ~(PLLE_AUX_ENABLE_SWCTL | PLLE_AUX_SS_SWCTL); - pll_writel(val, pll->params->aux_reg, pll); - udelay(1); - val |= PLLE_AUX_SEQ_ENABLE; - pll_writel(val, pll->params->aux_reg, pll); - out: if (pll->lock) spin_unlock_irqrestore(pll->lock, flags); diff --git a/drivers/clk/tegra/clk-tegra210.c b/drivers/clk/tegra/clk-tegra210.c index 68cbb98af567..b9099012dc7b 100644 --- a/drivers/clk/tegra/clk-tegra210.c +++ b/drivers/clk/tegra/clk-tegra210.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * Copyright (c) 2012-2014 NVIDIA CORPORATION. All rights reserved. + * Copyright (c) 2012-2020 NVIDIA CORPORATION. All rights reserved. */ #include <linux/io.h> @@ -403,6 +403,14 @@ static unsigned long tegra210_input_freq[] = { #define PLLRE_BASE_DEFAULT_MASK 0x1c000000 #define PLLRE_MISC0_WRITE_MASK 0x67ffffff +/* PLLE */ +#define PLLE_MISC_IDDQ_SW_CTRL (1 << 14) +#define PLLE_AUX_USE_LOCKDET (1 << 3) +#define PLLE_AUX_SS_SEQ_INCLUDE (1 << 31) +#define PLLE_AUX_ENABLE_SWCTL (1 << 4) +#define PLLE_AUX_SS_SWCTL (1 << 6) +#define PLLE_AUX_SEQ_ENABLE (1 << 24) + /* PLLX */ #define PLLX_USE_DYN_RAMP 1 #define PLLX_BASE_LOCK (1 << 27) @@ -489,6 +497,49 @@ static unsigned long tegra210_input_freq[] = { #define PLLU_MISC0_WRITE_MASK 0xbfffffff #define PLLU_MISC1_WRITE_MASK 0x00000007 +bool tegra210_plle_hw_sequence_is_enabled(void) +{ + u32 value; + + value = readl_relaxed(clk_base + PLLE_AUX); + if (value & PLLE_AUX_SEQ_ENABLE) + return true; + + return false; +} +EXPORT_SYMBOL_GPL(tegra210_plle_hw_sequence_is_enabled); + +int tegra210_plle_hw_sequence_start(void) +{ + u32 value; + + if (tegra210_plle_hw_sequence_is_enabled()) + return 0; + + /* skip if PLLE is not enabled yet */ + value = readl_relaxed(clk_base + PLLE_MISC0); + if (!(value & PLLE_MISC_LOCK)) + return -EIO; + + value &= ~PLLE_MISC_IDDQ_SW_CTRL; + writel_relaxed(value, clk_base + PLLE_MISC0); + + value = readl_relaxed(clk_base + PLLE_AUX); + value |= (PLLE_AUX_USE_LOCKDET | PLLE_AUX_SS_SEQ_INCLUDE); + value &= ~(PLLE_AUX_ENABLE_SWCTL | PLLE_AUX_SS_SWCTL); + writel_relaxed(value, clk_base + PLLE_AUX); + + fence_udelay(1, clk_base); + + value |= PLLE_AUX_SEQ_ENABLE; + writel_relaxed(value, clk_base + PLLE_AUX); + + fence_udelay(1, clk_base); + + return 0; +} +EXPORT_SYMBOL_GPL(tegra210_plle_hw_sequence_start); + void tegra210_xusb_pll_hw_control_enable(void) { u32 val; diff --git a/drivers/cpufreq/scmi-cpufreq.c b/drivers/cpufreq/scmi-cpufreq.c index 5bd03b59887f..c8a4364ad3c2 100644 --- a/drivers/cpufreq/scmi-cpufreq.c +++ b/drivers/cpufreq/scmi-cpufreq.c @@ -2,7 +2,7 @@ /* * System Control and Power Interface (SCMI) based CPUFreq Interface driver * - * Copyright (C) 2018 ARM Ltd. + * Copyright (C) 2018-2021 ARM Ltd. * Sudeep Holla <sudeep.holla@arm.com> */ @@ -25,17 +25,17 @@ struct scmi_data { struct device *cpu_dev; }; -static const struct scmi_handle *handle; +static struct scmi_protocol_handle *ph; +static const struct scmi_perf_proto_ops *perf_ops; static unsigned int scmi_cpufreq_get_rate(unsigned int cpu) { struct cpufreq_policy *policy = cpufreq_cpu_get_raw(cpu); - const struct scmi_perf_ops *perf_ops = handle->perf_ops; struct scmi_data *priv = policy->driver_data; unsigned long rate; int ret; - ret = perf_ops->freq_get(handle, priv->domain_id, &rate, false); + ret = perf_ops->freq_get(ph, priv->domain_id, &rate, false); if (ret) return 0; return rate / 1000; @@ -50,19 +50,17 @@ static int scmi_cpufreq_set_target(struct cpufreq_policy *policy, unsigned int index) { struct scmi_data *priv = policy->driver_data; - const struct scmi_perf_ops *perf_ops = handle->perf_ops; u64 freq = policy->freq_table[index].frequency; - return perf_ops->freq_set(handle, priv->domain_id, freq * 1000, false); + return perf_ops->freq_set(ph, priv->domain_id, freq * 1000, false); } static unsigned int scmi_cpufreq_fast_switch(struct cpufreq_policy *policy, unsigned int target_freq) { struct scmi_data *priv = policy->driver_data; - const struct scmi_perf_ops *perf_ops = handle->perf_ops; - if (!perf_ops->freq_set(handle, priv->domain_id, + if (!perf_ops->freq_set(ph, priv->domain_id, target_freq * 1000, true)) return target_freq; @@ -75,7 +73,7 @@ scmi_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask) int cpu, domain, tdomain; struct device *tcpu_dev; - domain = handle->perf_ops->device_domain_id(cpu_dev); + domain = perf_ops->device_domain_id(cpu_dev); if (domain < 0) return domain; @@ -87,7 +85,7 @@ scmi_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask) if (!tcpu_dev) continue; - tdomain = handle->perf_ops->device_domain_id(tcpu_dev); + tdomain = perf_ops->device_domain_id(tcpu_dev); if (tdomain == domain) cpumask_set_cpu(cpu, cpumask); } @@ -102,13 +100,13 @@ scmi_get_cpu_power(unsigned long *power, unsigned long *KHz, unsigned long Hz; int ret, domain; - domain = handle->perf_ops->device_domain_id(cpu_dev); + domain = perf_ops->device_domain_id(cpu_dev); if (domain < 0) return domain; /* Get the power cost of the performance domain. */ Hz = *KHz * 1000; - ret = handle->perf_ops->est_power_get(handle, domain, &Hz, power); + ret = perf_ops->est_power_get(ph, domain, &Hz, power); if (ret) return ret; @@ -126,6 +124,7 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy) struct scmi_data *priv; struct cpufreq_frequency_table *freq_table; struct em_data_callback em_cb = EM_DATA_CB(scmi_get_cpu_power); + cpumask_var_t opp_shared_cpus; bool power_scale_mw; cpu_dev = get_cpu_device(policy->cpu); @@ -134,30 +133,64 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy) return -ENODEV; } - ret = handle->perf_ops->device_opps_add(handle, cpu_dev); - if (ret) { - dev_warn(cpu_dev, "failed to add opps to the device\n"); - return ret; - } + if (!zalloc_cpumask_var(&opp_shared_cpus, GFP_KERNEL)) + ret = -ENOMEM; + /* Obtain CPUs that share SCMI performance controls */ ret = scmi_get_sharing_cpus(cpu_dev, policy->cpus); if (ret) { dev_warn(cpu_dev, "failed to get sharing cpumask\n"); - return ret; + goto out_free_cpumask; } - ret = dev_pm_opp_set_sharing_cpus(cpu_dev, policy->cpus); - if (ret) { - dev_err(cpu_dev, "%s: failed to mark OPPs as shared: %d\n", - __func__, ret); - return ret; + /* + * Obtain CPUs that share performance levels. + * The OPP 'sharing cpus' info may come from DT through an empty opp + * table and opp-shared. + */ + ret = dev_pm_opp_of_get_sharing_cpus(cpu_dev, opp_shared_cpus); + if (ret || !cpumask_weight(opp_shared_cpus)) { + /* + * Either opp-table is not set or no opp-shared was found. + * Use the CPU mask from SCMI to designate CPUs sharing an OPP + * table. + */ + cpumask_copy(opp_shared_cpus, policy->cpus); } + /* + * A previous CPU may have marked OPPs as shared for a few CPUs, based on + * what OPP core provided. If the current CPU is part of those few, then + * there is no need to add OPPs again. + */ nr_opp = dev_pm_opp_get_opp_count(cpu_dev); if (nr_opp <= 0) { - dev_dbg(cpu_dev, "OPP table is not ready, deferring probe\n"); - ret = -EPROBE_DEFER; - goto out_free_opp; + ret = perf_ops->device_opps_add(ph, cpu_dev); + if (ret) { + dev_warn(cpu_dev, "failed to add opps to the device\n"); + goto out_free_cpumask; + } + + nr_opp = dev_pm_opp_get_opp_count(cpu_dev); + if (nr_opp <= 0) { + dev_err(cpu_dev, "%s: No OPPs for this device: %d\n", + __func__, ret); + + ret = -ENODEV; + goto out_free_opp; + } + + ret = dev_pm_opp_set_sharing_cpus(cpu_dev, opp_shared_cpus); + if (ret) { + dev_err(cpu_dev, "%s: failed to mark OPPs as shared: %d\n", + __func__, ret); + + goto out_free_opp; + } + + power_scale_mw = perf_ops->power_scale_mw_get(ph); + em_dev_register_perf_domain(cpu_dev, nr_opp, &em_cb, + opp_shared_cpus, power_scale_mw); } priv = kzalloc(sizeof(*priv), GFP_KERNEL); @@ -173,7 +206,7 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy) } priv->cpu_dev = cpu_dev; - priv->domain_id = handle->perf_ops->device_domain_id(cpu_dev); + priv->domain_id = perf_ops->device_domain_id(cpu_dev); policy->driver_data = priv; policy->freq_table = freq_table; @@ -181,26 +214,27 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy) /* SCMI allows DVFS request for any domain from any CPU */ policy->dvfs_possible_from_any_cpu = true; - latency = handle->perf_ops->transition_latency_get(handle, cpu_dev); + latency = perf_ops->transition_latency_get(ph, cpu_dev); if (!latency) latency = CPUFREQ_ETERNAL; policy->cpuinfo.transition_latency = latency; policy->fast_switch_possible = - handle->perf_ops->fast_switch_possible(handle, cpu_dev); - - power_scale_mw = handle->perf_ops->power_scale_mw_get(handle); - em_dev_register_perf_domain(cpu_dev, nr_opp, &em_cb, policy->cpus, - power_scale_mw); + perf_ops->fast_switch_possible(ph, cpu_dev); + free_cpumask_var(opp_shared_cpus); return 0; out_free_priv: kfree(priv); + out_free_opp: dev_pm_opp_remove_all_dynamic(cpu_dev); +out_free_cpumask: + free_cpumask_var(opp_shared_cpus); + return ret; } @@ -233,12 +267,17 @@ static int scmi_cpufreq_probe(struct scmi_device *sdev) { int ret; struct device *dev = &sdev->dev; + const struct scmi_handle *handle; handle = sdev->handle; - if (!handle || !handle->perf_ops) + if (!handle) return -ENODEV; + perf_ops = handle->devm_protocol_get(sdev, SCMI_PROTOCOL_PERF, &ph); + if (IS_ERR(perf_ops)) + return PTR_ERR(perf_ops); + #ifdef CONFIG_COMMON_CLK /* dummy clock provider as needed by OPP if clocks property is used */ if (of_find_property(dev->of_node, "#clock-cells", NULL)) diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index 0c2827fd8c19..a0836ffc22e0 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -100,7 +100,7 @@ config AT_XDMAC config AXI_DMAC tristate "Analog Devices AXI-DMAC DMA support" - depends on MICROBLAZE || NIOS2 || ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_SOCFPGA || COMPILE_TEST + depends on MICROBLAZE || NIOS2 || ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_INTEL_SOCFPGA || COMPILE_TEST select DMA_ENGINE select DMA_VIRTUAL_CHANNELS select REGMAP_MMIO diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig index 27d0c4cdc58d..1e836e320edd 100644 --- a/drivers/edac/Kconfig +++ b/drivers/edac/Kconfig @@ -396,7 +396,7 @@ config EDAC_THUNDERX config EDAC_ALTERA bool "Altera SOCFPGA ECC" - depends on EDAC=y && (ARCH_SOCFPGA || ARCH_STRATIX10) + depends on EDAC=y && ARCH_INTEL_SOCFPGA help Support for error detection and correction on the Altera SOCs. This is the global enable for the diff --git a/drivers/edac/altera_edac.c b/drivers/edac/altera_edac.c index e91cf1147a4e..5f7fd79ec82f 100644 --- a/drivers/edac/altera_edac.c +++ b/drivers/edac/altera_edac.c @@ -1501,8 +1501,13 @@ static int altr_portb_setup(struct altr_edac_device_dev *device) dci->mod_name = ecc_name; dci->dev_name = ecc_name; - /* Update the PortB IRQs - A10 has 4, S10 has 2, Index accordingly */ -#ifdef CONFIG_ARCH_STRATIX10 + /* + * Update the PortB IRQs - A10 has 4, S10 has 2, Index accordingly + * + * FIXME: Instead of ifdefs with different architectures the driver + * should properly use compatibles. + */ +#ifdef CONFIG_64BIT altdev->sb_irq = irq_of_parse_and_map(np, 1); #else altdev->sb_irq = irq_of_parse_and_map(np, 2); @@ -1521,7 +1526,7 @@ static int altr_portb_setup(struct altr_edac_device_dev *device) goto err_release_group_1; } -#ifdef CONFIG_ARCH_STRATIX10 +#ifdef CONFIG_64BIT /* Use IRQ to determine SError origin instead of assigning IRQ */ rc = of_property_read_u32_index(np, "interrupts", 1, &altdev->db_irq); if (rc) { @@ -1931,7 +1936,7 @@ static int altr_edac_a10_device_add(struct altr_arria10_edac *edac, goto err_release_group1; } -#ifdef CONFIG_ARCH_STRATIX10 +#ifdef CONFIG_64BIT /* Use IRQ to determine SError origin instead of assigning IRQ */ rc = of_property_read_u32_index(np, "interrupts", 0, &altdev->db_irq); if (rc) { @@ -2016,7 +2021,7 @@ static const struct irq_domain_ops a10_eccmgr_ic_ops = { /************** Stratix 10 EDAC Double Bit Error Handler ************/ #define to_a10edac(p, m) container_of(p, struct altr_arria10_edac, m) -#ifdef CONFIG_ARCH_STRATIX10 +#ifdef CONFIG_64BIT /* panic routine issues reboot on non-zero panic_timeout */ extern int panic_timeout; @@ -2109,7 +2114,7 @@ static int altr_edac_a10_probe(struct platform_device *pdev) altr_edac_a10_irq_handler, edac); -#ifdef CONFIG_ARCH_STRATIX10 +#ifdef CONFIG_64BIT { int dberror, err_addr; diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig index 5dd19dbd67a3..db0ea2d2d75a 100644 --- a/drivers/firmware/Kconfig +++ b/drivers/firmware/Kconfig @@ -206,7 +206,7 @@ config FW_CFG_SYSFS_CMDLINE config INTEL_STRATIX10_SERVICE tristate "Intel Stratix10 Service Layer" - depends on (ARCH_STRATIX10 || ARCH_AGILEX) && HAVE_ARM_SMCCC + depends on ARCH_INTEL_SOCFPGA && ARM64 && HAVE_ARM_SMCCC default n help Intel Stratix10 service layer runs at privileged exception level, diff --git a/drivers/firmware/arm_scmi/base.c b/drivers/firmware/arm_scmi/base.c index 017e5d8bd869..de416f9e7921 100644 --- a/drivers/firmware/arm_scmi/base.c +++ b/drivers/firmware/arm_scmi/base.c @@ -2,11 +2,12 @@ /* * System Control and Management Interface (SCMI) Base Protocol * - * Copyright (C) 2018 ARM Ltd. + * Copyright (C) 2018-2021 ARM Ltd. */ #define pr_fmt(fmt) "SCMI Notifications BASE - " fmt +#include <linux/module.h> #include <linux/scmi_protocol.h> #include "common.h" @@ -50,30 +51,30 @@ struct scmi_base_error_notify_payld { * scmi_base_attributes_get() - gets the implementation details * that are associated with the base protocol. * - * @handle: SCMI entity handle + * @ph: SCMI protocol handle * * Return: 0 on success, else appropriate SCMI error. */ -static int scmi_base_attributes_get(const struct scmi_handle *handle) +static int scmi_base_attributes_get(const struct scmi_protocol_handle *ph) { int ret; struct scmi_xfer *t; struct scmi_msg_resp_base_attributes *attr_info; - struct scmi_revision_info *rev = handle->version; + struct scmi_revision_info *rev = ph->get_priv(ph); - ret = scmi_xfer_get_init(handle, PROTOCOL_ATTRIBUTES, - SCMI_PROTOCOL_BASE, 0, sizeof(*attr_info), &t); + ret = ph->xops->xfer_get_init(ph, PROTOCOL_ATTRIBUTES, + 0, sizeof(*attr_info), &t); if (ret) return ret; - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) { attr_info = t->rx.buf; rev->num_protocols = attr_info->num_protocols; rev->num_agents = attr_info->num_agents; } - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } @@ -81,19 +82,20 @@ static int scmi_base_attributes_get(const struct scmi_handle *handle) /** * scmi_base_vendor_id_get() - gets vendor/subvendor identifier ASCII string. * - * @handle: SCMI entity handle + * @ph: SCMI protocol handle * @sub_vendor: specify true if sub-vendor ID is needed * * Return: 0 on success, else appropriate SCMI error. */ static int -scmi_base_vendor_id_get(const struct scmi_handle *handle, bool sub_vendor) +scmi_base_vendor_id_get(const struct scmi_protocol_handle *ph, bool sub_vendor) { u8 cmd; int ret, size; char *vendor_id; struct scmi_xfer *t; - struct scmi_revision_info *rev = handle->version; + struct scmi_revision_info *rev = ph->get_priv(ph); + if (sub_vendor) { cmd = BASE_DISCOVER_SUB_VENDOR; @@ -105,15 +107,15 @@ scmi_base_vendor_id_get(const struct scmi_handle *handle, bool sub_vendor) size = ARRAY_SIZE(rev->vendor_id); } - ret = scmi_xfer_get_init(handle, cmd, SCMI_PROTOCOL_BASE, 0, size, &t); + ret = ph->xops->xfer_get_init(ph, cmd, 0, size, &t); if (ret) return ret; - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) memcpy(vendor_id, t->rx.buf, size); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } @@ -123,30 +125,30 @@ scmi_base_vendor_id_get(const struct scmi_handle *handle, bool sub_vendor) * implementation 32-bit version. The format of the version number is * vendor-specific * - * @handle: SCMI entity handle + * @ph: SCMI protocol handle * * Return: 0 on success, else appropriate SCMI error. */ static int -scmi_base_implementation_version_get(const struct scmi_handle *handle) +scmi_base_implementation_version_get(const struct scmi_protocol_handle *ph) { int ret; __le32 *impl_ver; struct scmi_xfer *t; - struct scmi_revision_info *rev = handle->version; + struct scmi_revision_info *rev = ph->get_priv(ph); - ret = scmi_xfer_get_init(handle, BASE_DISCOVER_IMPLEMENT_VERSION, - SCMI_PROTOCOL_BASE, 0, sizeof(*impl_ver), &t); + ret = ph->xops->xfer_get_init(ph, BASE_DISCOVER_IMPLEMENT_VERSION, + 0, sizeof(*impl_ver), &t); if (ret) return ret; - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) { impl_ver = t->rx.buf; rev->impl_ver = le32_to_cpu(*impl_ver); } - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } @@ -155,23 +157,24 @@ scmi_base_implementation_version_get(const struct scmi_handle *handle) * scmi_base_implementation_list_get() - gets the list of protocols it is * OSPM is allowed to access * - * @handle: SCMI entity handle + * @ph: SCMI protocol handle * @protocols_imp: pointer to hold the list of protocol identifiers * * Return: 0 on success, else appropriate SCMI error. */ -static int scmi_base_implementation_list_get(const struct scmi_handle *handle, - u8 *protocols_imp) +static int +scmi_base_implementation_list_get(const struct scmi_protocol_handle *ph, + u8 *protocols_imp) { u8 *list; int ret, loop; struct scmi_xfer *t; __le32 *num_skip, *num_ret; u32 tot_num_ret = 0, loop_num_ret; - struct device *dev = handle->dev; + struct device *dev = ph->dev; - ret = scmi_xfer_get_init(handle, BASE_DISCOVER_LIST_PROTOCOLS, - SCMI_PROTOCOL_BASE, sizeof(*num_skip), 0, &t); + ret = ph->xops->xfer_get_init(ph, BASE_DISCOVER_LIST_PROTOCOLS, + sizeof(*num_skip), 0, &t); if (ret) return ret; @@ -183,7 +186,7 @@ static int scmi_base_implementation_list_get(const struct scmi_handle *handle, /* Set the number of protocols to be skipped/already read */ *num_skip = cpu_to_le32(tot_num_ret); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (ret) break; @@ -198,10 +201,10 @@ static int scmi_base_implementation_list_get(const struct scmi_handle *handle, tot_num_ret += loop_num_ret; - scmi_reset_rx_to_maxsz(handle, t); + ph->xops->reset_rx_to_maxsz(ph, t); } while (loop_num_ret); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } @@ -209,7 +212,7 @@ static int scmi_base_implementation_list_get(const struct scmi_handle *handle, /** * scmi_base_discover_agent_get() - discover the name of an agent * - * @handle: SCMI entity handle + * @ph: SCMI protocol handle * @id: Agent identifier * @name: Agent identifier ASCII string * @@ -218,63 +221,63 @@ static int scmi_base_implementation_list_get(const struct scmi_handle *handle, * * Return: 0 on success, else appropriate SCMI error. */ -static int scmi_base_discover_agent_get(const struct scmi_handle *handle, +static int scmi_base_discover_agent_get(const struct scmi_protocol_handle *ph, int id, char *name) { int ret; struct scmi_xfer *t; - ret = scmi_xfer_get_init(handle, BASE_DISCOVER_AGENT, - SCMI_PROTOCOL_BASE, sizeof(__le32), - SCMI_MAX_STR_SIZE, &t); + ret = ph->xops->xfer_get_init(ph, BASE_DISCOVER_AGENT, + sizeof(__le32), SCMI_MAX_STR_SIZE, &t); if (ret) return ret; put_unaligned_le32(id, t->tx.buf); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) strlcpy(name, t->rx.buf, SCMI_MAX_STR_SIZE); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int scmi_base_error_notify(const struct scmi_handle *handle, bool enable) +static int scmi_base_error_notify(const struct scmi_protocol_handle *ph, + bool enable) { int ret; u32 evt_cntl = enable ? BASE_TP_NOTIFY_ALL : 0; struct scmi_xfer *t; struct scmi_msg_base_error_notify *cfg; - ret = scmi_xfer_get_init(handle, BASE_NOTIFY_ERRORS, - SCMI_PROTOCOL_BASE, sizeof(*cfg), 0, &t); + ret = ph->xops->xfer_get_init(ph, BASE_NOTIFY_ERRORS, + sizeof(*cfg), 0, &t); if (ret) return ret; cfg = t->tx.buf; cfg->event_control = cpu_to_le32(evt_cntl); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int scmi_base_set_notify_enabled(const struct scmi_handle *handle, +static int scmi_base_set_notify_enabled(const struct scmi_protocol_handle *ph, u8 evt_id, u32 src_id, bool enable) { int ret; - ret = scmi_base_error_notify(handle, enable); + ret = scmi_base_error_notify(ph, enable); if (ret) pr_debug("FAIL_ENABLED - evt[%X] ret:%d\n", evt_id, ret); return ret; } -static void *scmi_base_fill_custom_report(const struct scmi_handle *handle, +static void *scmi_base_fill_custom_report(const struct scmi_protocol_handle *ph, u8 evt_id, ktime_t timestamp, const void *payld, size_t payld_sz, void *report, u32 *src_id) @@ -318,17 +321,24 @@ static const struct scmi_event_ops base_event_ops = { .fill_custom_report = scmi_base_fill_custom_report, }; -int scmi_base_protocol_init(struct scmi_handle *h) +static const struct scmi_protocol_events base_protocol_events = { + .queue_sz = 4 * SCMI_PROTO_QUEUE_SZ, + .ops = &base_event_ops, + .evts = base_events, + .num_events = ARRAY_SIZE(base_events), + .num_sources = SCMI_BASE_NUM_SOURCES, +}; + +static int scmi_base_protocol_init(const struct scmi_protocol_handle *ph) { int id, ret; u8 *prot_imp; u32 version; char name[SCMI_MAX_STR_SIZE]; - const struct scmi_handle *handle = h; - struct device *dev = handle->dev; - struct scmi_revision_info *rev = handle->version; + struct device *dev = ph->dev; + struct scmi_revision_info *rev = scmi_revision_area_get(ph); - ret = scmi_version_get(handle, SCMI_PROTOCOL_BASE, &version); + ret = ph->xops->version_get(ph, &version); if (ret) return ret; @@ -338,13 +348,15 @@ int scmi_base_protocol_init(struct scmi_handle *h) rev->major_ver = PROTOCOL_REV_MAJOR(version), rev->minor_ver = PROTOCOL_REV_MINOR(version); + ph->set_priv(ph, rev); + + scmi_base_attributes_get(ph); + scmi_base_vendor_id_get(ph, false); + scmi_base_vendor_id_get(ph, true); + scmi_base_implementation_version_get(ph); + scmi_base_implementation_list_get(ph, prot_imp); - scmi_base_attributes_get(handle); - scmi_base_vendor_id_get(handle, false); - scmi_base_vendor_id_get(handle, true); - scmi_base_implementation_version_get(handle); - scmi_base_implementation_list_get(handle, prot_imp); - scmi_setup_protocol_implemented(handle, prot_imp); + scmi_setup_protocol_implemented(ph, prot_imp); dev_info(dev, "SCMI Protocol v%d.%d '%s:%s' Firmware version 0x%x\n", rev->major_ver, rev->minor_ver, rev->vendor_id, @@ -352,16 +364,20 @@ int scmi_base_protocol_init(struct scmi_handle *h) dev_dbg(dev, "Found %d protocol(s) %d agent(s)\n", rev->num_protocols, rev->num_agents); - scmi_register_protocol_events(handle, SCMI_PROTOCOL_BASE, - (4 * SCMI_PROTO_QUEUE_SZ), - &base_event_ops, base_events, - ARRAY_SIZE(base_events), - SCMI_BASE_NUM_SOURCES); - for (id = 0; id < rev->num_agents; id++) { - scmi_base_discover_agent_get(handle, id, name); + scmi_base_discover_agent_get(ph, id, name); dev_dbg(dev, "Agent %d: %s\n", id, name); } return 0; } + +static const struct scmi_protocol scmi_base = { + .id = SCMI_PROTOCOL_BASE, + .owner = NULL, + .instance_init = &scmi_base_protocol_init, + .ops = NULL, + .events = &base_protocol_events, +}; + +DEFINE_SCMI_PROTOCOL_REGISTER_UNREGISTER(base, scmi_base) diff --git a/drivers/firmware/arm_scmi/bus.c b/drivers/firmware/arm_scmi/bus.c index 1377ec76a45d..784cf0027da3 100644 --- a/drivers/firmware/arm_scmi/bus.c +++ b/drivers/firmware/arm_scmi/bus.c @@ -2,7 +2,7 @@ /* * System Control and Management Interface (SCMI) Message Protocol bus layer * - * Copyright (C) 2018 ARM Ltd. + * Copyright (C) 2018-2021 ARM Ltd. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt @@ -51,18 +51,53 @@ static int scmi_dev_match(struct device *dev, struct device_driver *drv) return 0; } -static int scmi_protocol_init(int protocol_id, struct scmi_handle *handle) +static int scmi_match_by_id_table(struct device *dev, void *data) { - scmi_prot_init_fn_t fn = idr_find(&scmi_protocols, protocol_id); + struct scmi_device *sdev = to_scmi_dev(dev); + struct scmi_device_id *id_table = data; - if (unlikely(!fn)) - return -EINVAL; - return fn(handle); + return sdev->protocol_id == id_table->protocol_id && + !strcmp(sdev->name, id_table->name); } -static int scmi_protocol_dummy_init(struct scmi_handle *handle) +struct scmi_device *scmi_child_dev_find(struct device *parent, + int prot_id, const char *name) { - return 0; + struct scmi_device_id id_table; + struct device *dev; + + id_table.protocol_id = prot_id; + id_table.name = name; + + dev = device_find_child(parent, &id_table, scmi_match_by_id_table); + if (!dev) + return NULL; + + return to_scmi_dev(dev); +} + +const struct scmi_protocol *scmi_protocol_get(int protocol_id) +{ + const struct scmi_protocol *proto; + + proto = idr_find(&scmi_protocols, protocol_id); + if (!proto || !try_module_get(proto->owner)) { + pr_warn("SCMI Protocol 0x%x not found!\n", protocol_id); + return NULL; + } + + pr_debug("Found SCMI Protocol 0x%x\n", protocol_id); + + return proto; +} + +void scmi_protocol_put(int protocol_id) +{ + const struct scmi_protocol *proto; + + proto = idr_find(&scmi_protocols, protocol_id); + if (proto) + module_put(proto->owner); } static int scmi_dev_probe(struct device *dev) @@ -70,7 +105,6 @@ static int scmi_dev_probe(struct device *dev) struct scmi_driver *scmi_drv = to_scmi_driver(dev->driver); struct scmi_device *scmi_dev = to_scmi_dev(dev); const struct scmi_device_id *id; - int ret; id = scmi_dev_match_id(scmi_dev, scmi_drv); if (!id) @@ -79,14 +113,6 @@ static int scmi_dev_probe(struct device *dev) if (!scmi_dev->handle) return -EPROBE_DEFER; - ret = scmi_protocol_init(scmi_dev->protocol_id, scmi_dev->handle); - if (ret) - return ret; - - /* Skip protocol initialisation for additional devices */ - idr_replace(&scmi_protocols, &scmi_protocol_dummy_init, - scmi_dev->protocol_id); - return scmi_drv->probe(scmi_dev); } @@ -113,6 +139,10 @@ int scmi_driver_register(struct scmi_driver *driver, struct module *owner, { int retval; + retval = scmi_protocol_device_request(driver->id_table); + if (retval) + return retval; + driver->driver.bus = &scmi_bus_type; driver->driver.name = driver->name; driver->driver.owner = owner; @@ -129,6 +159,7 @@ EXPORT_SYMBOL_GPL(scmi_driver_register); void scmi_driver_unregister(struct scmi_driver *driver) { driver_unregister(&driver->driver); + scmi_protocol_device_unrequest(driver->id_table); } EXPORT_SYMBOL_GPL(scmi_driver_unregister); @@ -194,26 +225,45 @@ void scmi_set_handle(struct scmi_device *scmi_dev) scmi_dev->handle = scmi_handle_get(&scmi_dev->dev); } -int scmi_protocol_register(int protocol_id, scmi_prot_init_fn_t fn) +int scmi_protocol_register(const struct scmi_protocol *proto) { int ret; + if (!proto) { + pr_err("invalid protocol\n"); + return -EINVAL; + } + + if (!proto->instance_init) { + pr_err("missing init for protocol 0x%x\n", proto->id); + return -EINVAL; + } + spin_lock(&protocol_lock); - ret = idr_alloc(&scmi_protocols, fn, protocol_id, protocol_id + 1, - GFP_ATOMIC); + ret = idr_alloc(&scmi_protocols, (void *)proto, + proto->id, proto->id + 1, GFP_ATOMIC); spin_unlock(&protocol_lock); - if (ret != protocol_id) - pr_err("unable to allocate SCMI idr slot, err %d\n", ret); + if (ret != proto->id) { + pr_err("unable to allocate SCMI idr slot for 0x%x - err %d\n", + proto->id, ret); + return ret; + } - return ret; + pr_debug("Registered SCMI Protocol 0x%x\n", proto->id); + + return 0; } EXPORT_SYMBOL_GPL(scmi_protocol_register); -void scmi_protocol_unregister(int protocol_id) +void scmi_protocol_unregister(const struct scmi_protocol *proto) { spin_lock(&protocol_lock); - idr_remove(&scmi_protocols, protocol_id); + idr_remove(&scmi_protocols, proto->id); spin_unlock(&protocol_lock); + + pr_debug("Unregistered SCMI Protocol 0x%x\n", proto->id); + + return; } EXPORT_SYMBOL_GPL(scmi_protocol_unregister); diff --git a/drivers/firmware/arm_scmi/clock.c b/drivers/firmware/arm_scmi/clock.c index 4645677d86f1..35b56c8ba0c0 100644 --- a/drivers/firmware/arm_scmi/clock.c +++ b/drivers/firmware/arm_scmi/clock.c @@ -2,9 +2,10 @@ /* * System Control and Management Interface (SCMI) Clock Protocol * - * Copyright (C) 2018 ARM Ltd. + * Copyright (C) 2018-2021 ARM Ltd. */ +#include <linux/module.h> #include <linux/sort.h> #include "common.h" @@ -74,52 +75,53 @@ struct clock_info { struct scmi_clock_info *clk; }; -static int scmi_clock_protocol_attributes_get(const struct scmi_handle *handle, - struct clock_info *ci) +static int +scmi_clock_protocol_attributes_get(const struct scmi_protocol_handle *ph, + struct clock_info *ci) { int ret; struct scmi_xfer *t; struct scmi_msg_resp_clock_protocol_attributes *attr; - ret = scmi_xfer_get_init(handle, PROTOCOL_ATTRIBUTES, - SCMI_PROTOCOL_CLOCK, 0, sizeof(*attr), &t); + ret = ph->xops->xfer_get_init(ph, PROTOCOL_ATTRIBUTES, + 0, sizeof(*attr), &t); if (ret) return ret; attr = t->rx.buf; - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) { ci->num_clocks = le16_to_cpu(attr->num_clocks); ci->max_async_req = attr->max_async_req; } - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int scmi_clock_attributes_get(const struct scmi_handle *handle, +static int scmi_clock_attributes_get(const struct scmi_protocol_handle *ph, u32 clk_id, struct scmi_clock_info *clk) { int ret; struct scmi_xfer *t; struct scmi_msg_resp_clock_attributes *attr; - ret = scmi_xfer_get_init(handle, CLOCK_ATTRIBUTES, SCMI_PROTOCOL_CLOCK, - sizeof(clk_id), sizeof(*attr), &t); + ret = ph->xops->xfer_get_init(ph, CLOCK_ATTRIBUTES, + sizeof(clk_id), sizeof(*attr), &t); if (ret) return ret; put_unaligned_le32(clk_id, t->tx.buf); attr = t->rx.buf; - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) strlcpy(clk->name, attr->name, SCMI_MAX_STR_SIZE); else clk->name[0] = '\0'; - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } @@ -136,7 +138,7 @@ static int rate_cmp_func(const void *_r1, const void *_r2) } static int -scmi_clock_describe_rates_get(const struct scmi_handle *handle, u32 clk_id, +scmi_clock_describe_rates_get(const struct scmi_protocol_handle *ph, u32 clk_id, struct scmi_clock_info *clk) { u64 *rate = NULL; @@ -148,8 +150,8 @@ scmi_clock_describe_rates_get(const struct scmi_handle *handle, u32 clk_id, struct scmi_msg_clock_describe_rates *clk_desc; struct scmi_msg_resp_clock_describe_rates *rlist; - ret = scmi_xfer_get_init(handle, CLOCK_DESCRIBE_RATES, - SCMI_PROTOCOL_CLOCK, sizeof(*clk_desc), 0, &t); + ret = ph->xops->xfer_get_init(ph, CLOCK_DESCRIBE_RATES, + sizeof(*clk_desc), 0, &t); if (ret) return ret; @@ -161,7 +163,7 @@ scmi_clock_describe_rates_get(const struct scmi_handle *handle, u32 clk_id, /* Set the number of rates to be skipped/already read */ clk_desc->rate_index = cpu_to_le32(tot_rate_cnt); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (ret) goto err; @@ -171,7 +173,7 @@ scmi_clock_describe_rates_get(const struct scmi_handle *handle, u32 clk_id, num_returned = NUM_RETURNED(rates_flag); if (tot_rate_cnt + num_returned > SCMI_MAX_NUM_RATES) { - dev_err(handle->dev, "No. of rates > MAX_NUM_RATES"); + dev_err(ph->dev, "No. of rates > MAX_NUM_RATES"); break; } @@ -179,7 +181,7 @@ scmi_clock_describe_rates_get(const struct scmi_handle *handle, u32 clk_id, clk->range.min_rate = RATE_TO_U64(rlist->rate[0]); clk->range.max_rate = RATE_TO_U64(rlist->rate[1]); clk->range.step_size = RATE_TO_U64(rlist->rate[2]); - dev_dbg(handle->dev, "Min %llu Max %llu Step %llu Hz\n", + dev_dbg(ph->dev, "Min %llu Max %llu Step %llu Hz\n", clk->range.min_rate, clk->range.max_rate, clk->range.step_size); break; @@ -188,12 +190,12 @@ scmi_clock_describe_rates_get(const struct scmi_handle *handle, u32 clk_id, rate = &clk->list.rates[tot_rate_cnt]; for (cnt = 0; cnt < num_returned; cnt++, rate++) { *rate = RATE_TO_U64(rlist->rate[cnt]); - dev_dbg(handle->dev, "Rate %llu Hz\n", *rate); + dev_dbg(ph->dev, "Rate %llu Hz\n", *rate); } tot_rate_cnt += num_returned; - scmi_reset_rx_to_maxsz(handle, t); + ph->xops->reset_rx_to_maxsz(ph, t); /* * check for both returned and remaining to avoid infinite * loop due to buggy firmware @@ -208,42 +210,42 @@ scmi_clock_describe_rates_get(const struct scmi_handle *handle, u32 clk_id, clk->rate_discrete = rate_discrete; err: - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } static int -scmi_clock_rate_get(const struct scmi_handle *handle, u32 clk_id, u64 *value) +scmi_clock_rate_get(const struct scmi_protocol_handle *ph, + u32 clk_id, u64 *value) { int ret; struct scmi_xfer *t; - ret = scmi_xfer_get_init(handle, CLOCK_RATE_GET, SCMI_PROTOCOL_CLOCK, - sizeof(__le32), sizeof(u64), &t); + ret = ph->xops->xfer_get_init(ph, CLOCK_RATE_GET, + sizeof(__le32), sizeof(u64), &t); if (ret) return ret; put_unaligned_le32(clk_id, t->tx.buf); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) *value = get_unaligned_le64(t->rx.buf); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int scmi_clock_rate_set(const struct scmi_handle *handle, u32 clk_id, - u64 rate) +static int scmi_clock_rate_set(const struct scmi_protocol_handle *ph, + u32 clk_id, u64 rate) { int ret; u32 flags = 0; struct scmi_xfer *t; struct scmi_clock_set_rate *cfg; - struct clock_info *ci = handle->clk_priv; + struct clock_info *ci = ph->get_priv(ph); - ret = scmi_xfer_get_init(handle, CLOCK_RATE_SET, SCMI_PROTOCOL_CLOCK, - sizeof(*cfg), 0, &t); + ret = ph->xops->xfer_get_init(ph, CLOCK_RATE_SET, sizeof(*cfg), 0, &t); if (ret) return ret; @@ -258,26 +260,27 @@ static int scmi_clock_rate_set(const struct scmi_handle *handle, u32 clk_id, cfg->value_high = cpu_to_le32(rate >> 32); if (flags & CLOCK_SET_ASYNC) - ret = scmi_do_xfer_with_response(handle, t); + ret = ph->xops->do_xfer_with_response(ph, t); else - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (ci->max_async_req) atomic_dec(&ci->cur_async_req); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } static int -scmi_clock_config_set(const struct scmi_handle *handle, u32 clk_id, u32 config) +scmi_clock_config_set(const struct scmi_protocol_handle *ph, u32 clk_id, + u32 config) { int ret; struct scmi_xfer *t; struct scmi_clock_set_config *cfg; - ret = scmi_xfer_get_init(handle, CLOCK_CONFIG_SET, SCMI_PROTOCOL_CLOCK, - sizeof(*cfg), 0, &t); + ret = ph->xops->xfer_get_init(ph, CLOCK_CONFIG_SET, + sizeof(*cfg), 0, &t); if (ret) return ret; @@ -285,33 +288,33 @@ scmi_clock_config_set(const struct scmi_handle *handle, u32 clk_id, u32 config) cfg->id = cpu_to_le32(clk_id); cfg->attributes = cpu_to_le32(config); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int scmi_clock_enable(const struct scmi_handle *handle, u32 clk_id) +static int scmi_clock_enable(const struct scmi_protocol_handle *ph, u32 clk_id) { - return scmi_clock_config_set(handle, clk_id, CLOCK_ENABLE); + return scmi_clock_config_set(ph, clk_id, CLOCK_ENABLE); } -static int scmi_clock_disable(const struct scmi_handle *handle, u32 clk_id) +static int scmi_clock_disable(const struct scmi_protocol_handle *ph, u32 clk_id) { - return scmi_clock_config_set(handle, clk_id, 0); + return scmi_clock_config_set(ph, clk_id, 0); } -static int scmi_clock_count_get(const struct scmi_handle *handle) +static int scmi_clock_count_get(const struct scmi_protocol_handle *ph) { - struct clock_info *ci = handle->clk_priv; + struct clock_info *ci = ph->get_priv(ph); return ci->num_clocks; } static const struct scmi_clock_info * -scmi_clock_info_get(const struct scmi_handle *handle, u32 clk_id) +scmi_clock_info_get(const struct scmi_protocol_handle *ph, u32 clk_id) { - struct clock_info *ci = handle->clk_priv; + struct clock_info *ci = ph->get_priv(ph); struct scmi_clock_info *clk = ci->clk + clk_id; if (!clk->name[0]) @@ -320,7 +323,7 @@ scmi_clock_info_get(const struct scmi_handle *handle, u32 clk_id) return clk; } -static const struct scmi_clk_ops clk_ops = { +static const struct scmi_clk_proto_ops clk_proto_ops = { .count_get = scmi_clock_count_get, .info_get = scmi_clock_info_get, .rate_get = scmi_clock_rate_get, @@ -329,24 +332,24 @@ static const struct scmi_clk_ops clk_ops = { .disable = scmi_clock_disable, }; -static int scmi_clock_protocol_init(struct scmi_handle *handle) +static int scmi_clock_protocol_init(const struct scmi_protocol_handle *ph) { u32 version; int clkid, ret; struct clock_info *cinfo; - scmi_version_get(handle, SCMI_PROTOCOL_CLOCK, &version); + ph->xops->version_get(ph, &version); - dev_dbg(handle->dev, "Clock Version %d.%d\n", + dev_dbg(ph->dev, "Clock Version %d.%d\n", PROTOCOL_REV_MAJOR(version), PROTOCOL_REV_MINOR(version)); - cinfo = devm_kzalloc(handle->dev, sizeof(*cinfo), GFP_KERNEL); + cinfo = devm_kzalloc(ph->dev, sizeof(*cinfo), GFP_KERNEL); if (!cinfo) return -ENOMEM; - scmi_clock_protocol_attributes_get(handle, cinfo); + scmi_clock_protocol_attributes_get(ph, cinfo); - cinfo->clk = devm_kcalloc(handle->dev, cinfo->num_clocks, + cinfo->clk = devm_kcalloc(ph->dev, cinfo->num_clocks, sizeof(*cinfo->clk), GFP_KERNEL); if (!cinfo->clk) return -ENOMEM; @@ -354,16 +357,20 @@ static int scmi_clock_protocol_init(struct scmi_handle *handle) for (clkid = 0; clkid < cinfo->num_clocks; clkid++) { struct scmi_clock_info *clk = cinfo->clk + clkid; - ret = scmi_clock_attributes_get(handle, clkid, clk); + ret = scmi_clock_attributes_get(ph, clkid, clk); if (!ret) - scmi_clock_describe_rates_get(handle, clkid, clk); + scmi_clock_describe_rates_get(ph, clkid, clk); } cinfo->version = version; - handle->clk_ops = &clk_ops; - handle->clk_priv = cinfo; - - return 0; + return ph->set_priv(ph, cinfo); } -DEFINE_SCMI_PROTOCOL_REGISTER_UNREGISTER(SCMI_PROTOCOL_CLOCK, clock) +static const struct scmi_protocol scmi_clock = { + .id = SCMI_PROTOCOL_CLOCK, + .owner = THIS_MODULE, + .instance_init = &scmi_clock_protocol_init, + .ops = &clk_proto_ops, +}; + +DEFINE_SCMI_PROTOCOL_REGISTER_UNREGISTER(clock, scmi_clock) diff --git a/drivers/firmware/arm_scmi/common.h b/drivers/firmware/arm_scmi/common.h index c0fb45e7c3e8..228bf4a71d23 100644 --- a/drivers/firmware/arm_scmi/common.h +++ b/drivers/firmware/arm_scmi/common.h @@ -4,7 +4,7 @@ * driver common header file containing some definitions, structures * and function prototypes used in all the different SCMI protocols. * - * Copyright (C) 2018 ARM Ltd. + * Copyright (C) 2018-2021 ARM Ltd. */ #ifndef _SCMI_COMMON_H #define _SCMI_COMMON_H @@ -14,11 +14,14 @@ #include <linux/device.h> #include <linux/errno.h> #include <linux/kernel.h> +#include <linux/module.h> #include <linux/scmi_protocol.h> #include <linux/types.h> #include <asm/unaligned.h> +#include "notify.h" + #define PROTOCOL_REV_MINOR_MASK GENMASK(15, 0) #define PROTOCOL_REV_MAJOR_MASK GENMASK(31, 16) #define PROTOCOL_REV_MAJOR(x) (u16)(FIELD_GET(PROTOCOL_REV_MAJOR_MASK, (x))) @@ -141,22 +144,92 @@ struct scmi_xfer { struct completion *async_done; }; -void scmi_xfer_put(const struct scmi_handle *h, struct scmi_xfer *xfer); -int scmi_do_xfer(const struct scmi_handle *h, struct scmi_xfer *xfer); -int scmi_do_xfer_with_response(const struct scmi_handle *h, - struct scmi_xfer *xfer); -int scmi_xfer_get_init(const struct scmi_handle *h, u8 msg_id, u8 prot_id, - size_t tx_size, size_t rx_size, struct scmi_xfer **p); -void scmi_reset_rx_to_maxsz(const struct scmi_handle *handle, - struct scmi_xfer *xfer); +struct scmi_xfer_ops; + +/** + * struct scmi_protocol_handle - Reference to an initialized protocol instance + * + * @dev: A reference to the associated SCMI instance device (handle->dev). + * @xops: A reference to a struct holding refs to the core xfer operations that + * can be used by the protocol implementation to generate SCMI messages. + * @set_priv: A method to set protocol private data for this instance. + * @get_priv: A method to get protocol private data previously set. + * + * This structure represents a protocol initialized against specific SCMI + * instance and it will be used as follows: + * - as a parameter fed from the core to the protocol initialization code so + * that it can access the core xfer operations to build and generate SCMI + * messages exclusively for the specific underlying protocol instance. + * - as an opaque handle fed by an SCMI driver user when it tries to access + * this protocol through its own protocol operations. + * In this case this handle will be returned as an opaque object together + * with the related protocol operations when the SCMI driver tries to access + * the protocol. + */ +struct scmi_protocol_handle { + struct device *dev; + const struct scmi_xfer_ops *xops; + int (*set_priv)(const struct scmi_protocol_handle *ph, void *priv); + void *(*get_priv)(const struct scmi_protocol_handle *ph); +}; + +/** + * struct scmi_xfer_ops - References to the core SCMI xfer operations. + * @version_get: Get this version protocol. + * @xfer_get_init: Initialize one struct xfer if any xfer slot is free. + * @reset_rx_to_maxsz: Reset rx size to max transport size. + * @do_xfer: Do the SCMI transfer. + * @do_xfer_with_response: Do the SCMI transfer waiting for a response. + * @xfer_put: Free the xfer slot. + * + * Note that all this operations expect a protocol handle as first parameter; + * they then internally use it to infer the underlying protocol number: this + * way is not possible for a protocol implementation to forge messages for + * another protocol. + */ +struct scmi_xfer_ops { + int (*version_get)(const struct scmi_protocol_handle *ph, u32 *version); + int (*xfer_get_init)(const struct scmi_protocol_handle *ph, u8 msg_id, + size_t tx_size, size_t rx_size, + struct scmi_xfer **p); + void (*reset_rx_to_maxsz)(const struct scmi_protocol_handle *ph, + struct scmi_xfer *xfer); + int (*do_xfer)(const struct scmi_protocol_handle *ph, + struct scmi_xfer *xfer); + int (*do_xfer_with_response)(const struct scmi_protocol_handle *ph, + struct scmi_xfer *xfer); + void (*xfer_put)(const struct scmi_protocol_handle *ph, + struct scmi_xfer *xfer); +}; + +struct scmi_revision_info * +scmi_revision_area_get(const struct scmi_protocol_handle *ph); int scmi_handle_put(const struct scmi_handle *handle); struct scmi_handle *scmi_handle_get(struct device *dev); void scmi_set_handle(struct scmi_device *scmi_dev); -int scmi_version_get(const struct scmi_handle *h, u8 protocol, u32 *version); -void scmi_setup_protocol_implemented(const struct scmi_handle *handle, +void scmi_setup_protocol_implemented(const struct scmi_protocol_handle *ph, u8 *prot_imp); -int scmi_base_protocol_init(struct scmi_handle *h); +typedef int (*scmi_prot_init_ph_fn_t)(const struct scmi_protocol_handle *); + +/** + * struct scmi_protocol - Protocol descriptor + * @id: Protocol ID. + * @owner: Module reference if any. + * @instance_init: Mandatory protocol initialization function. + * @instance_deinit: Optional protocol de-initialization function. + * @ops: Optional reference to the operations provided by the protocol and + * exposed in scmi_protocol.h. + * @events: An optional reference to the events supported by this protocol. + */ +struct scmi_protocol { + const u8 id; + struct module *owner; + const scmi_prot_init_ph_fn_t instance_init; + const scmi_prot_init_ph_fn_t instance_deinit; + const void *ops; + const struct scmi_protocol_events *events; +}; int __init scmi_bus_init(void); void __exit scmi_bus_exit(void); @@ -164,6 +237,7 @@ void __exit scmi_bus_exit(void); #define DECLARE_SCMI_REGISTER_UNREGISTER(func) \ int __init scmi_##func##_register(void); \ void __exit scmi_##func##_unregister(void) +DECLARE_SCMI_REGISTER_UNREGISTER(base); DECLARE_SCMI_REGISTER_UNREGISTER(clock); DECLARE_SCMI_REGISTER_UNREGISTER(perf); DECLARE_SCMI_REGISTER_UNREGISTER(power); @@ -172,17 +246,25 @@ DECLARE_SCMI_REGISTER_UNREGISTER(sensors); DECLARE_SCMI_REGISTER_UNREGISTER(voltage); DECLARE_SCMI_REGISTER_UNREGISTER(system); -#define DEFINE_SCMI_PROTOCOL_REGISTER_UNREGISTER(id, name) \ -int __init scmi_##name##_register(void) \ -{ \ - return scmi_protocol_register((id), &scmi_##name##_protocol_init); \ -} \ -\ -void __exit scmi_##name##_unregister(void) \ -{ \ - scmi_protocol_unregister((id)); \ +#define DEFINE_SCMI_PROTOCOL_REGISTER_UNREGISTER(name, proto) \ +static const struct scmi_protocol *__this_proto = &(proto); \ + \ +int __init scmi_##name##_register(void) \ +{ \ + return scmi_protocol_register(__this_proto); \ +} \ + \ +void __exit scmi_##name##_unregister(void) \ +{ \ + scmi_protocol_unregister(__this_proto); \ } +const struct scmi_protocol *scmi_protocol_get(int protocol_id); +void scmi_protocol_put(int protocol_id); + +int scmi_protocol_acquire(const struct scmi_handle *handle, u8 protocol_id); +void scmi_protocol_release(const struct scmi_handle *handle, u8 protocol_id); + /* SCMI Transport */ /** * struct scmi_chan_info - Structure representing a SCMI channel information @@ -227,6 +309,11 @@ struct scmi_transport_ops { bool (*poll_done)(struct scmi_chan_info *cinfo, struct scmi_xfer *xfer); }; +int scmi_protocol_device_request(const struct scmi_device_id *id_table); +void scmi_protocol_device_unrequest(const struct scmi_device_id *id_table); +struct scmi_device *scmi_child_dev_find(struct device *parent, + int prot_id, const char *name); + /** * struct scmi_desc - Description of SoC integration * @@ -265,4 +352,8 @@ void shmem_clear_channel(struct scmi_shared_mem __iomem *shmem); bool shmem_poll_done(struct scmi_shared_mem __iomem *shmem, struct scmi_xfer *xfer); +void scmi_notification_instance_data_set(const struct scmi_handle *handle, + void *priv); +void *scmi_notification_instance_data_get(const struct scmi_handle *handle); + #endif /* _SCMI_COMMON_H */ diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c index 3e748e57deab..66eb3f0e5daf 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -11,18 +11,22 @@ * various power domain DVFS including the core/cluster, certain system * clocks configuration, thermal sensors and many others. * - * Copyright (C) 2018 ARM Ltd. + * Copyright (C) 2018-2021 ARM Ltd. */ #include <linux/bitmap.h> +#include <linux/device.h> #include <linux/export.h> +#include <linux/idr.h> #include <linux/io.h> #include <linux/kernel.h> #include <linux/ktime.h> +#include <linux/list.h> #include <linux/module.h> #include <linux/of_address.h> #include <linux/of_device.h> #include <linux/processor.h> +#include <linux/refcount.h> #include <linux/slab.h> #include "common.h" @@ -53,6 +57,14 @@ static DEFINE_MUTEX(scmi_list_mutex); /* Track the unique id for the transfers for debug & profiling purpose */ static atomic_t transfer_last_id; +static DEFINE_IDR(scmi_requested_devices); +static DEFINE_MUTEX(scmi_requested_devices_mtx); + +struct scmi_requested_dev { + const struct scmi_device_id *id_table; + struct list_head node; +}; + /** * struct scmi_xfers_info - Structure to manage transfer information * @@ -69,6 +81,30 @@ struct scmi_xfers_info { }; /** + * struct scmi_protocol_instance - Describe an initialized protocol instance. + * @handle: Reference to the SCMI handle associated to this protocol instance. + * @proto: A reference to the protocol descriptor. + * @gid: A reference for per-protocol devres management. + * @users: A refcount to track effective users of this protocol. + * @priv: Reference for optional protocol private data. + * @ph: An embedded protocol handle that will be passed down to protocol + * initialization code to identify this instance. + * + * Each protocol is initialized independently once for each SCMI platform in + * which is defined by DT and implemented by the SCMI server fw. + */ +struct scmi_protocol_instance { + const struct scmi_handle *handle; + const struct scmi_protocol *proto; + void *gid; + refcount_t users; + void *priv; + struct scmi_protocol_handle ph; +}; + +#define ph_to_pi(h) container_of(h, struct scmi_protocol_instance, ph) + +/** * struct scmi_info - Structure representing a SCMI instance * * @dev: Device pointer @@ -80,8 +116,15 @@ struct scmi_xfers_info { * @rx_minfo: Universal Receive Message management info * @tx_idr: IDR object to map protocol id to Tx channel info pointer * @rx_idr: IDR object to map protocol id to Rx channel info pointer + * @protocols: IDR for protocols' instance descriptors initialized for + * this SCMI instance: populated on protocol's first attempted + * usage. + * @protocols_mtx: A mutex to protect protocols instances initialization. * @protocols_imp: List of protocols implemented, currently maximum of * MAX_PROTOCOLS_IMP elements allocated by the base protocol + * @active_protocols: IDR storing device_nodes for protocols actually defined + * in the DT and confirmed as implemented by fw. + * @notify_priv: Pointer to private data structure specific to notifications. * @node: List head * @users: Number of users of this instance */ @@ -94,7 +137,12 @@ struct scmi_info { struct scmi_xfers_info rx_minfo; struct idr tx_idr; struct idr rx_idr; + struct idr protocols; + /* Ensure mutual exclusive access to protocols instance array */ + struct mutex protocols_mtx; u8 *protocols_imp; + struct idr active_protocols; + void *notify_priv; struct list_head node; int users; }; @@ -136,6 +184,25 @@ static inline void scmi_dump_header_dbg(struct device *dev, hdr->id, hdr->seq, hdr->protocol_id); } +void scmi_notification_instance_data_set(const struct scmi_handle *handle, + void *priv) +{ + struct scmi_info *info = handle_to_scmi_info(handle); + + info->notify_priv = priv; + /* Ensure updated protocol private date are visible */ + smp_wmb(); +} + +void *scmi_notification_instance_data_get(const struct scmi_handle *handle) +{ + struct scmi_info *info = handle_to_scmi_info(handle); + + /* Ensure protocols_private_data has been updated */ + smp_rmb(); + return info->notify_priv; +} + /** * scmi_xfer_get() - Allocate one message * @@ -316,14 +383,16 @@ void scmi_rx_callback(struct scmi_chan_info *cinfo, u32 msg_hdr) } /** - * scmi_xfer_put() - Release a transmit message + * xfer_put() - Release a transmit message * - * @handle: Pointer to SCMI entity handle + * @ph: Pointer to SCMI protocol handle * @xfer: message that was reserved by scmi_xfer_get */ -void scmi_xfer_put(const struct scmi_handle *handle, struct scmi_xfer *xfer) +static void xfer_put(const struct scmi_protocol_handle *ph, + struct scmi_xfer *xfer) { - struct scmi_info *info = handle_to_scmi_info(handle); + const struct scmi_protocol_instance *pi = ph_to_pi(ph); + struct scmi_info *info = handle_to_scmi_info(pi->handle); __scmi_xfer_put(&info->tx_minfo, xfer); } @@ -340,23 +409,32 @@ static bool scmi_xfer_done_no_timeout(struct scmi_chan_info *cinfo, } /** - * scmi_do_xfer() - Do one transfer + * do_xfer() - Do one transfer * - * @handle: Pointer to SCMI entity handle + * @ph: Pointer to SCMI protocol handle * @xfer: Transfer to initiate and wait for response * * Return: -ETIMEDOUT in case of no response, if transmit error, * return corresponding error, else if all goes well, * return 0. */ -int scmi_do_xfer(const struct scmi_handle *handle, struct scmi_xfer *xfer) +static int do_xfer(const struct scmi_protocol_handle *ph, + struct scmi_xfer *xfer) { int ret; int timeout; - struct scmi_info *info = handle_to_scmi_info(handle); + const struct scmi_protocol_instance *pi = ph_to_pi(ph); + struct scmi_info *info = handle_to_scmi_info(pi->handle); struct device *dev = info->dev; struct scmi_chan_info *cinfo; + /* + * Re-instate protocol id here from protocol handle so that cannot be + * overridden by mistake (or malice) by the protocol code mangling with + * the scmi_xfer structure. + */ + xfer->hdr.protocol_id = pi->proto->id; + cinfo = idr_find(&info->tx_idr, xfer->hdr.protocol_id); if (unlikely(!cinfo)) return -EINVAL; @@ -402,10 +480,11 @@ int scmi_do_xfer(const struct scmi_handle *handle, struct scmi_xfer *xfer) return ret; } -void scmi_reset_rx_to_maxsz(const struct scmi_handle *handle, - struct scmi_xfer *xfer) +static void reset_rx_to_maxsz(const struct scmi_protocol_handle *ph, + struct scmi_xfer *xfer) { - struct scmi_info *info = handle_to_scmi_info(handle); + const struct scmi_protocol_instance *pi = ph_to_pi(ph); + struct scmi_info *info = handle_to_scmi_info(pi->handle); xfer->rx.len = info->desc->max_msg_size; } @@ -413,24 +492,27 @@ void scmi_reset_rx_to_maxsz(const struct scmi_handle *handle, #define SCMI_MAX_RESPONSE_TIMEOUT (2 * MSEC_PER_SEC) /** - * scmi_do_xfer_with_response() - Do one transfer and wait until the delayed + * do_xfer_with_response() - Do one transfer and wait until the delayed * response is received * - * @handle: Pointer to SCMI entity handle + * @ph: Pointer to SCMI protocol handle * @xfer: Transfer to initiate and wait for response * * Return: -ETIMEDOUT in case of no delayed response, if transmit error, * return corresponding error, else if all goes well, return 0. */ -int scmi_do_xfer_with_response(const struct scmi_handle *handle, - struct scmi_xfer *xfer) +static int do_xfer_with_response(const struct scmi_protocol_handle *ph, + struct scmi_xfer *xfer) { int ret, timeout = msecs_to_jiffies(SCMI_MAX_RESPONSE_TIMEOUT); + const struct scmi_protocol_instance *pi = ph_to_pi(ph); DECLARE_COMPLETION_ONSTACK(async_response); + xfer->hdr.protocol_id = pi->proto->id; + xfer->async_done = &async_response; - ret = scmi_do_xfer(handle, xfer); + ret = do_xfer(ph, xfer); if (!ret && !wait_for_completion_timeout(xfer->async_done, timeout)) ret = -ETIMEDOUT; @@ -439,11 +521,10 @@ int scmi_do_xfer_with_response(const struct scmi_handle *handle, } /** - * scmi_xfer_get_init() - Allocate and initialise one message for transmit + * xfer_get_init() - Allocate and initialise one message for transmit * - * @handle: Pointer to SCMI entity handle + * @ph: Pointer to SCMI protocol handle * @msg_id: Message identifier - * @prot_id: Protocol identifier for the message * @tx_size: transmit message size * @rx_size: receive message size * @p: pointer to the allocated and initialised message @@ -454,12 +535,14 @@ int scmi_do_xfer_with_response(const struct scmi_handle *handle, * Return: 0 if all went fine with @p pointing to message, else * corresponding error. */ -int scmi_xfer_get_init(const struct scmi_handle *handle, u8 msg_id, u8 prot_id, - size_t tx_size, size_t rx_size, struct scmi_xfer **p) +static int xfer_get_init(const struct scmi_protocol_handle *ph, + u8 msg_id, size_t tx_size, size_t rx_size, + struct scmi_xfer **p) { int ret; struct scmi_xfer *xfer; - struct scmi_info *info = handle_to_scmi_info(handle); + const struct scmi_protocol_instance *pi = ph_to_pi(ph); + struct scmi_info *info = handle_to_scmi_info(pi->handle); struct scmi_xfers_info *minfo = &info->tx_minfo; struct device *dev = info->dev; @@ -468,7 +551,7 @@ int scmi_xfer_get_init(const struct scmi_handle *handle, u8 msg_id, u8 prot_id, tx_size > info->desc->max_msg_size) return -ERANGE; - xfer = scmi_xfer_get(handle, minfo); + xfer = scmi_xfer_get(pi->handle, minfo); if (IS_ERR(xfer)) { ret = PTR_ERR(xfer); dev_err(dev, "failed to get free message slot(%d)\n", ret); @@ -478,7 +561,7 @@ int scmi_xfer_get_init(const struct scmi_handle *handle, u8 msg_id, u8 prot_id, xfer->tx.len = tx_size; xfer->rx.len = rx_size ? : info->desc->max_msg_size; xfer->hdr.id = msg_id; - xfer->hdr.protocol_id = prot_id; + xfer->hdr.protocol_id = pi->proto->id; xfer->hdr.poll_completion = false; *p = xfer; @@ -487,43 +570,276 @@ int scmi_xfer_get_init(const struct scmi_handle *handle, u8 msg_id, u8 prot_id, } /** - * scmi_version_get() - command to get the revision of the SCMI entity + * version_get() - command to get the revision of the SCMI entity * - * @handle: Pointer to SCMI entity handle - * @protocol: Protocol identifier for the message + * @ph: Pointer to SCMI protocol handle * @version: Holds returned version of protocol. * * Updates the SCMI information in the internal data structure. * * Return: 0 if all went fine, else return appropriate error. */ -int scmi_version_get(const struct scmi_handle *handle, u8 protocol, - u32 *version) +static int version_get(const struct scmi_protocol_handle *ph, u32 *version) { int ret; __le32 *rev_info; struct scmi_xfer *t; - ret = scmi_xfer_get_init(handle, PROTOCOL_VERSION, protocol, 0, - sizeof(*version), &t); + ret = xfer_get_init(ph, PROTOCOL_VERSION, 0, sizeof(*version), &t); if (ret) return ret; - ret = scmi_do_xfer(handle, t); + ret = do_xfer(ph, t); if (!ret) { rev_info = t->rx.buf; *version = le32_to_cpu(*rev_info); } - scmi_xfer_put(handle, t); + xfer_put(ph, t); return ret; } -void scmi_setup_protocol_implemented(const struct scmi_handle *handle, - u8 *prot_imp) +/** + * scmi_set_protocol_priv - Set protocol specific data at init time + * + * @ph: A reference to the protocol handle. + * @priv: The private data to set. + * + * Return: 0 on Success + */ +static int scmi_set_protocol_priv(const struct scmi_protocol_handle *ph, + void *priv) { + struct scmi_protocol_instance *pi = ph_to_pi(ph); + + pi->priv = priv; + + return 0; +} + +/** + * scmi_get_protocol_priv - Set protocol specific data at init time + * + * @ph: A reference to the protocol handle. + * + * Return: Protocol private data if any was set. + */ +static void *scmi_get_protocol_priv(const struct scmi_protocol_handle *ph) +{ + const struct scmi_protocol_instance *pi = ph_to_pi(ph); + + return pi->priv; +} + +static const struct scmi_xfer_ops xfer_ops = { + .version_get = version_get, + .xfer_get_init = xfer_get_init, + .reset_rx_to_maxsz = reset_rx_to_maxsz, + .do_xfer = do_xfer, + .do_xfer_with_response = do_xfer_with_response, + .xfer_put = xfer_put, +}; + +/** + * scmi_revision_area_get - Retrieve version memory area. + * + * @ph: A reference to the protocol handle. + * + * A helper to grab the version memory area reference during SCMI Base protocol + * initialization. + * + * Return: A reference to the version memory area associated to the SCMI + * instance underlying this protocol handle. + */ +struct scmi_revision_info * +scmi_revision_area_get(const struct scmi_protocol_handle *ph) +{ + const struct scmi_protocol_instance *pi = ph_to_pi(ph); + + return pi->handle->version; +} + +/** + * scmi_alloc_init_protocol_instance - Allocate and initialize a protocol + * instance descriptor. + * @info: The reference to the related SCMI instance. + * @proto: The protocol descriptor. + * + * Allocate a new protocol instance descriptor, using the provided @proto + * description, against the specified SCMI instance @info, and initialize it; + * all resources management is handled via a dedicated per-protocol devres + * group. + * + * Context: Assumes to be called with @protocols_mtx already acquired. + * Return: A reference to a freshly allocated and initialized protocol instance + * or ERR_PTR on failure. On failure the @proto reference is at first + * put using @scmi_protocol_put() before releasing all the devres group. + */ +static struct scmi_protocol_instance * +scmi_alloc_init_protocol_instance(struct scmi_info *info, + const struct scmi_protocol *proto) +{ + int ret = -ENOMEM; + void *gid; + struct scmi_protocol_instance *pi; + const struct scmi_handle *handle = &info->handle; + + /* Protocol specific devres group */ + gid = devres_open_group(handle->dev, NULL, GFP_KERNEL); + if (!gid) { + scmi_protocol_put(proto->id); + goto out; + } + + pi = devm_kzalloc(handle->dev, sizeof(*pi), GFP_KERNEL); + if (!pi) + goto clean; + + pi->gid = gid; + pi->proto = proto; + pi->handle = handle; + pi->ph.dev = handle->dev; + pi->ph.xops = &xfer_ops; + pi->ph.set_priv = scmi_set_protocol_priv; + pi->ph.get_priv = scmi_get_protocol_priv; + refcount_set(&pi->users, 1); + /* proto->init is assured NON NULL by scmi_protocol_register */ + ret = pi->proto->instance_init(&pi->ph); + if (ret) + goto clean; + + ret = idr_alloc(&info->protocols, pi, proto->id, proto->id + 1, + GFP_KERNEL); + if (ret != proto->id) + goto clean; + + /* + * Warn but ignore events registration errors since we do not want + * to skip whole protocols if their notifications are messed up. + */ + if (pi->proto->events) { + ret = scmi_register_protocol_events(handle, pi->proto->id, + &pi->ph, + pi->proto->events); + if (ret) + dev_warn(handle->dev, + "Protocol:%X - Events Registration Failed - err:%d\n", + pi->proto->id, ret); + } + + devres_close_group(handle->dev, pi->gid); + dev_dbg(handle->dev, "Initialized protocol: 0x%X\n", pi->proto->id); + + return pi; + +clean: + /* Take care to put the protocol module's owner before releasing all */ + scmi_protocol_put(proto->id); + devres_release_group(handle->dev, gid); +out: + return ERR_PTR(ret); +} + +/** + * scmi_get_protocol_instance - Protocol initialization helper. + * @handle: A reference to the SCMI platform instance. + * @protocol_id: The protocol being requested. + * + * In case the required protocol has never been requested before for this + * instance, allocate and initialize all the needed structures while handling + * resource allocation with a dedicated per-protocol devres subgroup. + * + * Return: A reference to an initialized protocol instance or error on failure: + * in particular returns -EPROBE_DEFER when the desired protocol could + * NOT be found. + */ +static struct scmi_protocol_instance * __must_check +scmi_get_protocol_instance(const struct scmi_handle *handle, u8 protocol_id) +{ + struct scmi_protocol_instance *pi; struct scmi_info *info = handle_to_scmi_info(handle); + mutex_lock(&info->protocols_mtx); + pi = idr_find(&info->protocols, protocol_id); + + if (pi) { + refcount_inc(&pi->users); + } else { + const struct scmi_protocol *proto; + + /* Fails if protocol not registered on bus */ + proto = scmi_protocol_get(protocol_id); + if (proto) + pi = scmi_alloc_init_protocol_instance(info, proto); + else + pi = ERR_PTR(-EPROBE_DEFER); + } + mutex_unlock(&info->protocols_mtx); + + return pi; +} + +/** + * scmi_protocol_acquire - Protocol acquire + * @handle: A reference to the SCMI platform instance. + * @protocol_id: The protocol being requested. + * + * Register a new user for the requested protocol on the specified SCMI + * platform instance, possibly triggering its initialization on first user. + * + * Return: 0 if protocol was acquired successfully. + */ +int scmi_protocol_acquire(const struct scmi_handle *handle, u8 protocol_id) +{ + return PTR_ERR_OR_ZERO(scmi_get_protocol_instance(handle, protocol_id)); +} + +/** + * scmi_protocol_release - Protocol de-initialization helper. + * @handle: A reference to the SCMI platform instance. + * @protocol_id: The protocol being requested. + * + * Remove one user for the specified protocol and triggers de-initialization + * and resources de-allocation once the last user has gone. + */ +void scmi_protocol_release(const struct scmi_handle *handle, u8 protocol_id) +{ + struct scmi_info *info = handle_to_scmi_info(handle); + struct scmi_protocol_instance *pi; + + mutex_lock(&info->protocols_mtx); + pi = idr_find(&info->protocols, protocol_id); + if (WARN_ON(!pi)) + goto out; + + if (refcount_dec_and_test(&pi->users)) { + void *gid = pi->gid; + + if (pi->proto->events) + scmi_deregister_protocol_events(handle, protocol_id); + + if (pi->proto->instance_deinit) + pi->proto->instance_deinit(&pi->ph); + + idr_remove(&info->protocols, protocol_id); + + scmi_protocol_put(protocol_id); + + devres_release_group(handle->dev, gid); + dev_dbg(handle->dev, "De-Initialized protocol: 0x%X\n", + protocol_id); + } + +out: + mutex_unlock(&info->protocols_mtx); +} + +void scmi_setup_protocol_implemented(const struct scmi_protocol_handle *ph, + u8 *prot_imp) +{ + const struct scmi_protocol_instance *pi = ph_to_pi(ph); + struct scmi_info *info = handle_to_scmi_info(pi->handle); + info->protocols_imp = prot_imp; } @@ -542,6 +858,102 @@ scmi_is_protocol_implemented(const struct scmi_handle *handle, u8 prot_id) return false; } +struct scmi_protocol_devres { + const struct scmi_handle *handle; + u8 protocol_id; +}; + +static void scmi_devm_release_protocol(struct device *dev, void *res) +{ + struct scmi_protocol_devres *dres = res; + + scmi_protocol_release(dres->handle, dres->protocol_id); +} + +/** + * scmi_devm_protocol_get - Devres managed get protocol operations and handle + * @sdev: A reference to an scmi_device whose embedded struct device is to + * be used for devres accounting. + * @protocol_id: The protocol being requested. + * @ph: A pointer reference used to pass back the associated protocol handle. + * + * Get hold of a protocol accounting for its usage, eventually triggering its + * initialization, and returning the protocol specific operations and related + * protocol handle which will be used as first argument in most of the + * protocols operations methods. + * Being a devres based managed method, protocol hold will be automatically + * released, and possibly de-initialized on last user, once the SCMI driver + * owning the scmi_device is unbound from it. + * + * Return: A reference to the requested protocol operations or error. + * Must be checked for errors by caller. + */ +static const void __must_check * +scmi_devm_protocol_get(struct scmi_device *sdev, u8 protocol_id, + struct scmi_protocol_handle **ph) +{ + struct scmi_protocol_instance *pi; + struct scmi_protocol_devres *dres; + struct scmi_handle *handle = sdev->handle; + + if (!ph) + return ERR_PTR(-EINVAL); + + dres = devres_alloc(scmi_devm_release_protocol, + sizeof(*dres), GFP_KERNEL); + if (!dres) + return ERR_PTR(-ENOMEM); + + pi = scmi_get_protocol_instance(handle, protocol_id); + if (IS_ERR(pi)) { + devres_free(dres); + return pi; + } + + dres->handle = handle; + dres->protocol_id = protocol_id; + devres_add(&sdev->dev, dres); + + *ph = &pi->ph; + + return pi->proto->ops; +} + +static int scmi_devm_protocol_match(struct device *dev, void *res, void *data) +{ + struct scmi_protocol_devres *dres = res; + + if (WARN_ON(!dres || !data)) + return 0; + + return dres->protocol_id == *((u8 *)data); +} + +/** + * scmi_devm_protocol_put - Devres managed put protocol operations and handle + * @sdev: A reference to an scmi_device whose embedded struct device is to + * be used for devres accounting. + * @protocol_id: The protocol being requested. + * + * Explicitly release a protocol hold previously obtained calling the above + * @scmi_devm_protocol_get. + */ +static void scmi_devm_protocol_put(struct scmi_device *sdev, u8 protocol_id) +{ + int ret; + + ret = devres_release(&sdev->dev, scmi_devm_release_protocol, + scmi_devm_protocol_match, &protocol_id); + WARN_ON(ret); +} + +static inline +struct scmi_handle *scmi_handle_get_from_info_unlocked(struct scmi_info *info) +{ + info->users++; + return &info->handle; +} + /** * scmi_handle_get() - Get the SCMI handle for a device * @@ -563,8 +975,7 @@ struct scmi_handle *scmi_handle_get(struct device *dev) list_for_each(p, &scmi_list) { info = list_entry(p, struct scmi_info, node); if (dev->parent == info->dev) { - handle = &info->handle; - info->users++; + handle = scmi_handle_get_from_info_unlocked(info); break; } } @@ -707,63 +1118,268 @@ scmi_txrx_setup(struct scmi_info *info, struct device *dev, int prot_id) return ret; } -static inline void -scmi_create_protocol_device(struct device_node *np, struct scmi_info *info, - int prot_id, const char *name) +/** + * scmi_get_protocol_device - Helper to get/create an SCMI device. + * + * @np: A device node representing a valid active protocols for the referred + * SCMI instance. + * @info: The referred SCMI instance for which we are getting/creating this + * device. + * @prot_id: The protocol ID. + * @name: The device name. + * + * Referring to the specific SCMI instance identified by @info, this helper + * takes care to return a properly initialized device matching the requested + * @proto_id and @name: if device was still not existent it is created as a + * child of the specified SCMI instance @info and its transport properly + * initialized as usual. + */ +static inline struct scmi_device * +scmi_get_protocol_device(struct device_node *np, struct scmi_info *info, + int prot_id, const char *name) { struct scmi_device *sdev; + /* Already created for this parent SCMI instance ? */ + sdev = scmi_child_dev_find(info->dev, prot_id, name); + if (sdev) + return sdev; + + pr_debug("Creating SCMI device (%s) for protocol %x\n", name, prot_id); + sdev = scmi_device_create(np, info->dev, prot_id, name); if (!sdev) { dev_err(info->dev, "failed to create %d protocol device\n", prot_id); - return; + return NULL; } if (scmi_txrx_setup(info, &sdev->dev, prot_id)) { dev_err(&sdev->dev, "failed to setup transport\n"); scmi_device_destroy(sdev); - return; + return NULL; } + return sdev; +} + +static inline void +scmi_create_protocol_device(struct device_node *np, struct scmi_info *info, + int prot_id, const char *name) +{ + struct scmi_device *sdev; + + sdev = scmi_get_protocol_device(np, info, prot_id, name); + if (!sdev) + return; + /* setup handle now as the transport is ready */ scmi_set_handle(sdev); } -#define MAX_SCMI_DEV_PER_PROTOCOL 2 -struct scmi_prot_devnames { - int protocol_id; - char *names[MAX_SCMI_DEV_PER_PROTOCOL]; -}; +/** + * scmi_create_protocol_devices - Create devices for all pending requests for + * this SCMI instance. + * + * @np: The device node describing the protocol + * @info: The SCMI instance descriptor + * @prot_id: The protocol ID + * + * All devices previously requested for this instance (if any) are found and + * created by scanning the proper @&scmi_requested_devices entry. + */ +static void scmi_create_protocol_devices(struct device_node *np, + struct scmi_info *info, int prot_id) +{ + struct list_head *phead; -static struct scmi_prot_devnames devnames[] = { - { SCMI_PROTOCOL_POWER, { "genpd" },}, - { SCMI_PROTOCOL_SYSTEM, { "syspower" },}, - { SCMI_PROTOCOL_PERF, { "cpufreq" },}, - { SCMI_PROTOCOL_CLOCK, { "clocks" },}, - { SCMI_PROTOCOL_SENSOR, { "hwmon", "iiodev" },}, - { SCMI_PROTOCOL_RESET, { "reset" },}, - { SCMI_PROTOCOL_VOLTAGE, { "regulator" },}, -}; + mutex_lock(&scmi_requested_devices_mtx); + phead = idr_find(&scmi_requested_devices, prot_id); + if (phead) { + struct scmi_requested_dev *rdev; -static inline void -scmi_create_protocol_devices(struct device_node *np, struct scmi_info *info, - int prot_id) + list_for_each_entry(rdev, phead, node) + scmi_create_protocol_device(np, info, prot_id, + rdev->id_table->name); + } + mutex_unlock(&scmi_requested_devices_mtx); +} + +/** + * scmi_protocol_device_request - Helper to request a device + * + * @id_table: A protocol/name pair descriptor for the device to be created. + * + * This helper let an SCMI driver request specific devices identified by the + * @id_table to be created for each active SCMI instance. + * + * The requested device name MUST NOT be already existent for any protocol; + * at first the freshly requested @id_table is annotated in the IDR table + * @scmi_requested_devices, then a matching device is created for each already + * active SCMI instance. (if any) + * + * This way the requested device is created straight-away for all the already + * initialized(probed) SCMI instances (handles) and it remains also annotated + * as pending creation if the requesting SCMI driver was loaded before some + * SCMI instance and related transports were available: when such late instance + * is probed, its probe will take care to scan the list of pending requested + * devices and create those on its own (see @scmi_create_protocol_devices and + * its enclosing loop) + * + * Return: 0 on Success + */ +int scmi_protocol_device_request(const struct scmi_device_id *id_table) { - int loop, cnt; + int ret = 0; + unsigned int id = 0; + struct list_head *head, *phead = NULL; + struct scmi_requested_dev *rdev; + struct scmi_info *info; - for (loop = 0; loop < ARRAY_SIZE(devnames); loop++) { - if (devnames[loop].protocol_id != prot_id) - continue; + pr_debug("Requesting SCMI device (%s) for protocol %x\n", + id_table->name, id_table->protocol_id); - for (cnt = 0; cnt < ARRAY_SIZE(devnames[loop].names); cnt++) { - const char *name = devnames[loop].names[cnt]; + /* + * Search for the matching protocol rdev list and then search + * of any existent equally named device...fails if any duplicate found. + */ + mutex_lock(&scmi_requested_devices_mtx); + idr_for_each_entry(&scmi_requested_devices, head, id) { + if (!phead) { + /* A list found registered in the IDR is never empty */ + rdev = list_first_entry(head, struct scmi_requested_dev, + node); + if (rdev->id_table->protocol_id == + id_table->protocol_id) + phead = head; + } + list_for_each_entry(rdev, head, node) { + if (!strcmp(rdev->id_table->name, id_table->name)) { + pr_err("Ignoring duplicate request [%d] %s\n", + rdev->id_table->protocol_id, + rdev->id_table->name); + ret = -EINVAL; + goto out; + } + } + } + + /* + * No duplicate found for requested id_table, so let's create a new + * requested device entry for this new valid request. + */ + rdev = kzalloc(sizeof(*rdev), GFP_KERNEL); + if (!rdev) { + ret = -ENOMEM; + goto out; + } + rdev->id_table = id_table; - if (name) - scmi_create_protocol_device(np, info, prot_id, - name); + /* + * Append the new requested device table descriptor to the head of the + * related protocol list, eventually creating such head if not already + * there. + */ + if (!phead) { + phead = kzalloc(sizeof(*phead), GFP_KERNEL); + if (!phead) { + kfree(rdev); + ret = -ENOMEM; + goto out; + } + INIT_LIST_HEAD(phead); + + ret = idr_alloc(&scmi_requested_devices, (void *)phead, + id_table->protocol_id, + id_table->protocol_id + 1, GFP_KERNEL); + if (ret != id_table->protocol_id) { + pr_err("Failed to save SCMI device - ret:%d\n", ret); + kfree(rdev); + kfree(phead); + ret = -EINVAL; + goto out; } + ret = 0; } + list_add(&rdev->node, phead); + + /* + * Now effectively create and initialize the requested device for every + * already initialized SCMI instance which has registered the requested + * protocol as a valid active one: i.e. defined in DT and supported by + * current platform FW. + */ + mutex_lock(&scmi_list_mutex); + list_for_each_entry(info, &scmi_list, node) { + struct device_node *child; + + child = idr_find(&info->active_protocols, + id_table->protocol_id); + if (child) { + struct scmi_device *sdev; + + sdev = scmi_get_protocol_device(child, info, + id_table->protocol_id, + id_table->name); + /* Set handle if not already set: device existed */ + if (sdev && !sdev->handle) + sdev->handle = + scmi_handle_get_from_info_unlocked(info); + } else { + dev_err(info->dev, + "Failed. SCMI protocol %d not active.\n", + id_table->protocol_id); + } + } + mutex_unlock(&scmi_list_mutex); + +out: + mutex_unlock(&scmi_requested_devices_mtx); + + return ret; +} + +/** + * scmi_protocol_device_unrequest - Helper to unrequest a device + * + * @id_table: A protocol/name pair descriptor for the device to be unrequested. + * + * An helper to let an SCMI driver release its request about devices; note that + * devices are created and initialized once the first SCMI driver request them + * but they destroyed only on SCMI core unloading/unbinding. + * + * The current SCMI transport layer uses such devices as internal references and + * as such they could be shared as same transport between multiple drivers so + * that cannot be safely destroyed till the whole SCMI stack is removed. + * (unless adding further burden of refcounting.) + */ +void scmi_protocol_device_unrequest(const struct scmi_device_id *id_table) +{ + struct list_head *phead; + + pr_debug("Unrequesting SCMI device (%s) for protocol %x\n", + id_table->name, id_table->protocol_id); + + mutex_lock(&scmi_requested_devices_mtx); + phead = idr_find(&scmi_requested_devices, id_table->protocol_id); + if (phead) { + struct scmi_requested_dev *victim, *tmp; + + list_for_each_entry_safe(victim, tmp, phead, node) { + if (!strcmp(victim->id_table->name, id_table->name)) { + list_del(&victim->node); + kfree(victim); + break; + } + } + + if (list_empty(phead)) { + idr_remove(&scmi_requested_devices, + id_table->protocol_id); + kfree(phead); + } + } + mutex_unlock(&scmi_requested_devices_mtx); } static int scmi_probe(struct platform_device *pdev) @@ -786,6 +1402,9 @@ static int scmi_probe(struct platform_device *pdev) info->dev = dev; info->desc = desc; INIT_LIST_HEAD(&info->node); + idr_init(&info->protocols); + mutex_init(&info->protocols_mtx); + idr_init(&info->active_protocols); platform_set_drvdata(pdev, info); idr_init(&info->tx_idr); @@ -794,6 +1413,8 @@ static int scmi_probe(struct platform_device *pdev) handle = &info->handle; handle->dev = info->dev; handle->version = &info->version; + handle->devm_protocol_get = scmi_devm_protocol_get; + handle->devm_protocol_put = scmi_devm_protocol_put; ret = scmi_txrx_setup(info, dev, SCMI_PROTOCOL_BASE); if (ret) @@ -806,9 +1427,14 @@ static int scmi_probe(struct platform_device *pdev) if (scmi_notification_init(handle)) dev_err(dev, "SCMI Notifications NOT available.\n"); - ret = scmi_base_protocol_init(handle); + /* + * Trigger SCMI Base protocol initialization. + * It's mandatory and won't be ever released/deinit until the + * SCMI stack is shutdown/unloaded as a whole. + */ + ret = scmi_protocol_acquire(handle, SCMI_PROTOCOL_BASE); if (ret) { - dev_err(dev, "unable to communicate with SCMI(%d)\n", ret); + dev_err(dev, "unable to communicate with SCMI\n"); return ret; } @@ -831,6 +1457,19 @@ static int scmi_probe(struct platform_device *pdev) continue; } + /* + * Save this valid DT protocol descriptor amongst + * @active_protocols for this SCMI instance/ + */ + ret = idr_alloc(&info->active_protocols, child, + prot_id, prot_id + 1, GFP_KERNEL); + if (ret != prot_id) { + dev_err(dev, "SCMI protocol %d already activated. Skip\n", + prot_id); + continue; + } + + of_node_get(child); scmi_create_protocol_devices(child, info, prot_id); } @@ -844,9 +1483,10 @@ void scmi_free_channel(struct scmi_chan_info *cinfo, struct idr *idr, int id) static int scmi_remove(struct platform_device *pdev) { - int ret = 0; + int ret = 0, id; struct scmi_info *info = platform_get_drvdata(pdev); struct idr *idr = &info->tx_idr; + struct device_node *child; mutex_lock(&scmi_list_mutex); if (info->users) @@ -860,6 +1500,14 @@ static int scmi_remove(struct platform_device *pdev) scmi_notification_exit(&info->handle); + mutex_lock(&info->protocols_mtx); + idr_destroy(&info->protocols); + mutex_unlock(&info->protocols_mtx); + + idr_for_each_entry(&info->active_protocols, child, id) + of_node_put(child); + idr_destroy(&info->active_protocols); + /* Safe to free channels since no more users */ ret = idr_for_each(idr, info->desc->ops->chan_free, idr); idr_destroy(&info->tx_idr); @@ -942,6 +1590,8 @@ static int __init scmi_driver_init(void) { scmi_bus_init(); + scmi_base_register(); + scmi_clock_register(); scmi_perf_register(); scmi_power_register(); @@ -956,7 +1606,7 @@ subsys_initcall(scmi_driver_init); static void __exit scmi_driver_exit(void) { - scmi_bus_exit(); + scmi_base_unregister(); scmi_clock_unregister(); scmi_perf_unregister(); @@ -966,6 +1616,8 @@ static void __exit scmi_driver_exit(void) scmi_voltage_unregister(); scmi_system_unregister(); + scmi_bus_exit(); + platform_driver_unregister(&scmi_driver); } module_exit(scmi_driver_exit); diff --git a/drivers/firmware/arm_scmi/notify.c b/drivers/firmware/arm_scmi/notify.c index 66196b293b6c..d860bebd984a 100644 --- a/drivers/firmware/arm_scmi/notify.c +++ b/drivers/firmware/arm_scmi/notify.c @@ -2,7 +2,7 @@ /* * System Control and Management Interface (SCMI) Notification support * - * Copyright (C) 2020 ARM Ltd. + * Copyright (C) 2020-2021 ARM Ltd. */ /** * DOC: Theory of operation @@ -91,6 +91,7 @@ #include <linux/types.h> #include <linux/workqueue.h> +#include "common.h" #include "notify.h" #define SCMI_MAX_PROTO 256 @@ -177,7 +178,7 @@ #define REVT_NOTIFY_SET_STATUS(revt, eid, sid, state) \ ({ \ typeof(revt) r = revt; \ - r->proto->ops->set_notify_enabled(r->proto->ni->handle, \ + r->proto->ops->set_notify_enabled(r->proto->ph, \ (eid), (sid), (state)); \ }) @@ -190,7 +191,7 @@ #define REVT_FILL_REPORT(revt, ...) \ ({ \ typeof(revt) r = revt; \ - r->proto->ops->fill_custom_report(r->proto->ni->handle, \ + r->proto->ops->fill_custom_report(r->proto->ph, \ __VA_ARGS__); \ }) @@ -278,6 +279,7 @@ struct scmi_registered_event; * events' descriptors, whose fixed-size is determined at * compile time. * @registered_mtx: A mutex to protect @registered_events_handlers + * @ph: SCMI protocol handle reference * @registered_events_handlers: An hashtable containing all events' handlers * descriptors registered for this protocol * @@ -302,6 +304,7 @@ struct scmi_registered_events_desc { struct scmi_registered_event **registered_events; /* mutex to protect registered_events_handlers */ struct mutex registered_mtx; + const struct scmi_protocol_handle *ph; DECLARE_HASHTABLE(registered_events_handlers, SCMI_REGISTERED_HASH_SZ); }; @@ -368,7 +371,7 @@ static struct scmi_event_handler * scmi_get_active_handler(struct scmi_notify_instance *ni, u32 evt_key); static void scmi_put_active_handler(struct scmi_notify_instance *ni, struct scmi_event_handler *hndl); -static void scmi_put_handler_unlocked(struct scmi_notify_instance *ni, +static bool scmi_put_handler_unlocked(struct scmi_notify_instance *ni, struct scmi_event_handler *hndl); /** @@ -579,11 +582,9 @@ int scmi_notify(const struct scmi_handle *handle, u8 proto_id, u8 evt_id, struct scmi_event_header eh; struct scmi_notify_instance *ni; - /* Ensure notify_priv is updated */ - smp_rmb(); - if (!handle->notify_priv) + ni = scmi_notification_instance_data_get(handle); + if (!ni) return 0; - ni = handle->notify_priv; r_evt = SCMI_GET_REVT(ni, proto_id, evt_id); if (!r_evt) @@ -732,14 +733,10 @@ scmi_allocate_registered_events_desc(struct scmi_notify_instance *ni, /** * scmi_register_protocol_events() - Register Protocol Events with the core * @handle: The handle identifying the platform instance against which the - * the protocol's events are registered + * protocol's events are registered * @proto_id: Protocol ID - * @queue_sz: Size in bytes of the associated queue to be allocated - * @ops: Protocol specific event-related operations - * @evt: Event descriptor array - * @num_events: Number of events in @evt array - * @num_sources: Number of possible sources for this protocol on this - * platform. + * @ph: SCMI protocol handle. + * @ee: A structure describing the events supported by this protocol. * * Used by SCMI Protocols initialization code to register with the notification * core the list of supported events and their descriptors: takes care to @@ -748,60 +745,69 @@ scmi_allocate_registered_events_desc(struct scmi_notify_instance *ni, * * Return: 0 on Success */ -int scmi_register_protocol_events(const struct scmi_handle *handle, - u8 proto_id, size_t queue_sz, - const struct scmi_event_ops *ops, - const struct scmi_event *evt, int num_events, - int num_sources) +int scmi_register_protocol_events(const struct scmi_handle *handle, u8 proto_id, + const struct scmi_protocol_handle *ph, + const struct scmi_protocol_events *ee) { int i; + unsigned int num_sources; size_t payld_sz = 0; struct scmi_registered_events_desc *pd; struct scmi_notify_instance *ni; + const struct scmi_event *evt; - if (!ops || !evt) + if (!ee || !ee->ops || !ee->evts || !ph || + (!ee->num_sources && !ee->ops->get_num_sources)) return -EINVAL; - /* Ensure notify_priv is updated */ - smp_rmb(); - if (!handle->notify_priv) + ni = scmi_notification_instance_data_get(handle); + if (!ni) return -ENOMEM; - ni = handle->notify_priv; - /* Attach to the notification main devres group */ - if (!devres_open_group(ni->handle->dev, ni->gid, GFP_KERNEL)) - return -ENOMEM; + /* num_sources cannot be <= 0 */ + if (ee->num_sources) { + num_sources = ee->num_sources; + } else { + int nsrc = ee->ops->get_num_sources(ph); - for (i = 0; i < num_events; i++) + if (nsrc <= 0) + return -EINVAL; + num_sources = nsrc; + } + + evt = ee->evts; + for (i = 0; i < ee->num_events; i++) payld_sz = max_t(size_t, payld_sz, evt[i].max_payld_sz); payld_sz += sizeof(struct scmi_event_header); - pd = scmi_allocate_registered_events_desc(ni, proto_id, queue_sz, - payld_sz, num_events, ops); + pd = scmi_allocate_registered_events_desc(ni, proto_id, ee->queue_sz, + payld_sz, ee->num_events, + ee->ops); if (IS_ERR(pd)) - goto err; + return PTR_ERR(pd); - for (i = 0; i < num_events; i++, evt++) { + pd->ph = ph; + for (i = 0; i < ee->num_events; i++, evt++) { struct scmi_registered_event *r_evt; r_evt = devm_kzalloc(ni->handle->dev, sizeof(*r_evt), GFP_KERNEL); if (!r_evt) - goto err; + return -ENOMEM; r_evt->proto = pd; r_evt->evt = evt; r_evt->sources = devm_kcalloc(ni->handle->dev, num_sources, sizeof(refcount_t), GFP_KERNEL); if (!r_evt->sources) - goto err; + return -ENOMEM; r_evt->num_sources = num_sources; mutex_init(&r_evt->sources_mtx); r_evt->report = devm_kzalloc(ni->handle->dev, evt->max_report_sz, GFP_KERNEL); if (!r_evt->report) - goto err; + return -ENOMEM; pd->registered_events[i] = r_evt; /* Ensure events are updated */ @@ -815,8 +821,6 @@ int scmi_register_protocol_events(const struct scmi_handle *handle, /* Ensure protocols are updated */ smp_wmb(); - devres_close_group(ni->handle->dev, ni->gid); - /* * Finalize any pending events' handler which could have been waiting * for this protocol's events registration. @@ -824,13 +828,33 @@ int scmi_register_protocol_events(const struct scmi_handle *handle, schedule_work(&ni->init_work); return 0; +} -err: - dev_warn(handle->dev, "Proto:%X - Registration Failed !\n", proto_id); - /* A failing protocol registration does not trigger full failure */ - devres_close_group(ni->handle->dev, ni->gid); +/** + * scmi_deregister_protocol_events - Deregister protocol events with the core + * @handle: The handle identifying the platform instance against which the + * protocol's events are registered + * @proto_id: Protocol ID + */ +void scmi_deregister_protocol_events(const struct scmi_handle *handle, + u8 proto_id) +{ + struct scmi_notify_instance *ni; + struct scmi_registered_events_desc *pd; - return -ENOMEM; + ni = scmi_notification_instance_data_get(handle); + if (!ni) + return; + + pd = ni->registered_protocols[proto_id]; + if (!pd) + return; + + ni->registered_protocols[proto_id] = NULL; + /* Ensure protocols are updated */ + smp_wmb(); + + cancel_work_sync(&pd->equeue.notify_work); } /** @@ -900,9 +924,21 @@ static inline int scmi_bind_event_handler(struct scmi_notify_instance *ni, if (!r_evt) return -EINVAL; - /* Remove from pending and insert into registered */ + /* + * Remove from pending and insert into registered while getting hold + * of protocol instance. + */ hash_del(&hndl->hash); + /* + * Acquire protocols only for NON pending handlers, so as NOT to trigger + * protocol initialization when a notifier is registered against a still + * not registered protocol, since it would make little sense to force init + * protocols for which still no SCMI driver user exists: they wouldn't + * emit any event anyway till some SCMI driver starts using it. + */ + scmi_protocol_acquire(ni->handle, KEY_XTRACT_PROTO_ID(hndl->key)); hndl->r_evt = r_evt; + mutex_lock(&r_evt->proto->registered_mtx); hash_add(r_evt->proto->registered_events_handlers, &hndl->hash, hndl->key); @@ -1193,41 +1229,65 @@ static int scmi_disable_events(struct scmi_event_handler *hndl) * * unregister and free the handler itself * * Context: Assumes all the proper locking has been managed by the caller. + * + * Return: True if handler was freed (users dropped to zero) */ -static void scmi_put_handler_unlocked(struct scmi_notify_instance *ni, +static bool scmi_put_handler_unlocked(struct scmi_notify_instance *ni, struct scmi_event_handler *hndl) { + bool freed = false; + if (refcount_dec_and_test(&hndl->users)) { if (!IS_HNDL_PENDING(hndl)) scmi_disable_events(hndl); scmi_free_event_handler(hndl); + freed = true; } + + return freed; } static void scmi_put_handler(struct scmi_notify_instance *ni, struct scmi_event_handler *hndl) { + bool freed; + u8 protocol_id; struct scmi_registered_event *r_evt = hndl->r_evt; mutex_lock(&ni->pending_mtx); - if (r_evt) + if (r_evt) { + protocol_id = r_evt->proto->id; mutex_lock(&r_evt->proto->registered_mtx); + } - scmi_put_handler_unlocked(ni, hndl); + freed = scmi_put_handler_unlocked(ni, hndl); - if (r_evt) + if (r_evt) { mutex_unlock(&r_evt->proto->registered_mtx); + /* + * Only registered handler acquired protocol; must be here + * released only AFTER unlocking registered_mtx, since + * releasing a protocol can trigger its de-initialization + * (ie. including r_evt and registered_mtx) + */ + if (freed) + scmi_protocol_release(ni->handle, protocol_id); + } mutex_unlock(&ni->pending_mtx); } static void scmi_put_active_handler(struct scmi_notify_instance *ni, struct scmi_event_handler *hndl) { + bool freed; struct scmi_registered_event *r_evt = hndl->r_evt; + u8 protocol_id = r_evt->proto->id; mutex_lock(&r_evt->proto->registered_mtx); - scmi_put_handler_unlocked(ni, hndl); + freed = scmi_put_handler_unlocked(ni, hndl); mutex_unlock(&r_evt->proto->registered_mtx); + if (freed) + scmi_protocol_release(ni->handle, protocol_id); } /** @@ -1247,7 +1307,7 @@ static int scmi_event_handler_enable_events(struct scmi_event_handler *hndl) } /** - * scmi_register_notifier() - Register a notifier_block for an event + * scmi_notifier_register() - Register a notifier_block for an event * @handle: The handle identifying the platform instance against which the * callback is registered * @proto_id: Protocol ID @@ -1279,8 +1339,8 @@ static int scmi_event_handler_enable_events(struct scmi_event_handler *hndl) * * Return: 0 on Success */ -static int scmi_register_notifier(const struct scmi_handle *handle, - u8 proto_id, u8 evt_id, u32 *src_id, +static int scmi_notifier_register(const struct scmi_handle *handle, + u8 proto_id, u8 evt_id, const u32 *src_id, struct notifier_block *nb) { int ret = 0; @@ -1288,11 +1348,9 @@ static int scmi_register_notifier(const struct scmi_handle *handle, struct scmi_event_handler *hndl; struct scmi_notify_instance *ni; - /* Ensure notify_priv is updated */ - smp_rmb(); - if (!handle->notify_priv) + ni = scmi_notification_instance_data_get(handle); + if (!ni) return -ENODEV; - ni = handle->notify_priv; evt_key = MAKE_HASH_KEY(proto_id, evt_id, src_id ? *src_id : SRC_ID_MASK); @@ -1313,7 +1371,7 @@ static int scmi_register_notifier(const struct scmi_handle *handle, } /** - * scmi_unregister_notifier() - Unregister a notifier_block for an event + * scmi_notifier_unregister() - Unregister a notifier_block for an event * @handle: The handle identifying the platform instance against which the * callback is unregistered * @proto_id: Protocol ID @@ -1328,19 +1386,17 @@ static int scmi_register_notifier(const struct scmi_handle *handle, * * Return: 0 on Success */ -static int scmi_unregister_notifier(const struct scmi_handle *handle, - u8 proto_id, u8 evt_id, u32 *src_id, +static int scmi_notifier_unregister(const struct scmi_handle *handle, + u8 proto_id, u8 evt_id, const u32 *src_id, struct notifier_block *nb) { u32 evt_key; struct scmi_event_handler *hndl; struct scmi_notify_instance *ni; - /* Ensure notify_priv is updated */ - smp_rmb(); - if (!handle->notify_priv) + ni = scmi_notification_instance_data_get(handle); + if (!ni) return -ENODEV; - ni = handle->notify_priv; evt_key = MAKE_HASH_KEY(proto_id, evt_id, src_id ? *src_id : SRC_ID_MASK); @@ -1356,7 +1412,7 @@ static int scmi_unregister_notifier(const struct scmi_handle *handle, scmi_put_handler(ni, hndl); /* - * This balances the initial get issued in @scmi_register_notifier. + * This balances the initial get issued in @scmi_notifier_register. * If this notifier_block happened to be the last known user callback * for this event, the handler is here freed and the event's generation * stopped. @@ -1371,6 +1427,129 @@ static int scmi_unregister_notifier(const struct scmi_handle *handle, return 0; } +struct scmi_notifier_devres { + const struct scmi_handle *handle; + u8 proto_id; + u8 evt_id; + u32 __src_id; + u32 *src_id; + struct notifier_block *nb; +}; + +static void scmi_devm_release_notifier(struct device *dev, void *res) +{ + struct scmi_notifier_devres *dres = res; + + scmi_notifier_unregister(dres->handle, dres->proto_id, dres->evt_id, + dres->src_id, dres->nb); +} + +/** + * scmi_devm_notifier_register() - Managed registration of a notifier_block + * for an event + * @sdev: A reference to an scmi_device whose embedded struct device is to + * be used for devres accounting. + * @proto_id: Protocol ID + * @evt_id: Event ID + * @src_id: Source ID, when NULL register for events coming form ALL possible + * sources + * @nb: A standard notifier block to register for the specified event + * + * Generic devres managed helper to register a notifier_block against a + * protocol event. + */ +static int scmi_devm_notifier_register(struct scmi_device *sdev, + u8 proto_id, u8 evt_id, + const u32 *src_id, + struct notifier_block *nb) +{ + int ret; + struct scmi_notifier_devres *dres; + + dres = devres_alloc(scmi_devm_release_notifier, + sizeof(*dres), GFP_KERNEL); + if (!dres) + return -ENOMEM; + + ret = scmi_notifier_register(sdev->handle, proto_id, + evt_id, src_id, nb); + if (ret) { + devres_free(dres); + return ret; + } + + dres->handle = sdev->handle; + dres->proto_id = proto_id; + dres->evt_id = evt_id; + dres->nb = nb; + if (src_id) { + dres->__src_id = *src_id; + dres->src_id = &dres->__src_id; + } else { + dres->src_id = NULL; + } + devres_add(&sdev->dev, dres); + + return ret; +} + +static int scmi_devm_notifier_match(struct device *dev, void *res, void *data) +{ + struct scmi_notifier_devres *dres = res; + struct scmi_notifier_devres *xres = data; + + if (WARN_ON(!dres || !xres)) + return 0; + + return dres->proto_id == xres->proto_id && + dres->evt_id == xres->evt_id && + dres->nb == xres->nb && + ((!dres->src_id && !xres->src_id) || + (dres->src_id && xres->src_id && + dres->__src_id == xres->__src_id)); +} + +/** + * scmi_devm_notifier_unregister() - Managed un-registration of a + * notifier_block for an event + * @sdev: A reference to an scmi_device whose embedded struct device is to + * be used for devres accounting. + * @proto_id: Protocol ID + * @evt_id: Event ID + * @src_id: Source ID, when NULL register for events coming form ALL possible + * sources + * @nb: A standard notifier block to register for the specified event + * + * Generic devres managed helper to explicitly un-register a notifier_block + * against a protocol event, which was previously registered using the above + * @scmi_devm_notifier_register. + */ +static int scmi_devm_notifier_unregister(struct scmi_device *sdev, + u8 proto_id, u8 evt_id, + const u32 *src_id, + struct notifier_block *nb) +{ + int ret; + struct scmi_notifier_devres dres; + + dres.handle = sdev->handle; + dres.proto_id = proto_id; + dres.evt_id = evt_id; + if (src_id) { + dres.__src_id = *src_id; + dres.src_id = &dres.__src_id; + } else { + dres.src_id = NULL; + } + + ret = devres_release(&sdev->dev, scmi_devm_release_notifier, + scmi_devm_notifier_match, &dres); + + WARN_ON(ret); + + return ret; +} + /** * scmi_protocols_late_init() - Worker for late initialization * @work: The work item to use associated to the proper SCMI instance @@ -1428,8 +1607,10 @@ static void scmi_protocols_late_init(struct work_struct *work) * directly from an scmi_driver to register its own notifiers. */ static const struct scmi_notify_ops notify_ops = { - .register_event_notifier = scmi_register_notifier, - .unregister_event_notifier = scmi_unregister_notifier, + .devm_event_notifier_register = scmi_devm_notifier_register, + .devm_event_notifier_unregister = scmi_devm_notifier_unregister, + .event_notifier_register = scmi_notifier_register, + .event_notifier_unregister = scmi_notifier_unregister, }; /** @@ -1490,8 +1671,8 @@ int scmi_notification_init(struct scmi_handle *handle) INIT_WORK(&ni->init_work, scmi_protocols_late_init); + scmi_notification_instance_data_set(handle, ni); handle->notify_ops = ¬ify_ops; - handle->notify_priv = ni; /* Ensure handle is up to date */ smp_wmb(); @@ -1503,7 +1684,7 @@ int scmi_notification_init(struct scmi_handle *handle) err: dev_warn(handle->dev, "Initialization Failed.\n"); - devres_release_group(handle->dev, NULL); + devres_release_group(handle->dev, gid); return -ENOMEM; } @@ -1515,15 +1696,10 @@ void scmi_notification_exit(struct scmi_handle *handle) { struct scmi_notify_instance *ni; - /* Ensure notify_priv is updated */ - smp_rmb(); - if (!handle->notify_priv) + ni = scmi_notification_instance_data_get(handle); + if (!ni) return; - ni = handle->notify_priv; - - handle->notify_priv = NULL; - /* Ensure handle is up to date */ - smp_wmb(); + scmi_notification_instance_data_set(handle, NULL); /* Destroy while letting pending work complete */ destroy_workqueue(ni->notify_wq); diff --git a/drivers/firmware/arm_scmi/notify.h b/drivers/firmware/arm_scmi/notify.h index 3485f20fa70e..ce0324be6c71 100644 --- a/drivers/firmware/arm_scmi/notify.h +++ b/drivers/firmware/arm_scmi/notify.h @@ -4,7 +4,7 @@ * notification header file containing some definitions, structures * and function prototypes related to SCMI Notification handling. * - * Copyright (C) 2020 ARM Ltd. + * Copyright (C) 2020-2021 ARM Ltd. */ #ifndef _SCMI_NOTIFY_H #define _SCMI_NOTIFY_H @@ -31,8 +31,12 @@ struct scmi_event { size_t max_report_sz; }; +struct scmi_protocol_handle; + /** * struct scmi_event_ops - Protocol helpers called by the notification core. + * @get_num_sources: Returns the number of possible events' sources for this + * protocol * @set_notify_enabled: Enable/disable the required evt_id/src_id notifications * using the proper custom protocol commands. * Return 0 on Success @@ -46,22 +50,42 @@ struct scmi_event { * process context. */ struct scmi_event_ops { - int (*set_notify_enabled)(const struct scmi_handle *handle, + int (*get_num_sources)(const struct scmi_protocol_handle *ph); + int (*set_notify_enabled)(const struct scmi_protocol_handle *ph, u8 evt_id, u32 src_id, bool enabled); - void *(*fill_custom_report)(const struct scmi_handle *handle, + void *(*fill_custom_report)(const struct scmi_protocol_handle *ph, u8 evt_id, ktime_t timestamp, const void *payld, size_t payld_sz, void *report, u32 *src_id); }; +/** + * struct scmi_protocol_events - Per-protocol description of available events + * @queue_sz: Size in bytes of the per-protocol queue to use. + * @ops: Array of protocol-specific events operations. + * @evts: Array of supported protocol's events. + * @num_events: Number of supported protocol's events described in @evts. + * @num_sources: Number of protocol's sources, should be greater than 0; if not + * available at compile time, it will be provided at run-time via + * @get_num_sources. + */ +struct scmi_protocol_events { + size_t queue_sz; + const struct scmi_event_ops *ops; + const struct scmi_event *evts; + unsigned int num_events; + unsigned int num_sources; +}; + int scmi_notification_init(struct scmi_handle *handle); void scmi_notification_exit(struct scmi_handle *handle); -int scmi_register_protocol_events(const struct scmi_handle *handle, - u8 proto_id, size_t queue_sz, - const struct scmi_event_ops *ops, - const struct scmi_event *evt, int num_events, - int num_sources); +struct scmi_protocol_handle; +int scmi_register_protocol_events(const struct scmi_handle *handle, u8 proto_id, + const struct scmi_protocol_handle *ph, + const struct scmi_protocol_events *ee); +void scmi_deregister_protocol_events(const struct scmi_handle *handle, + u8 proto_id); int scmi_notify(const struct scmi_handle *handle, u8 proto_id, u8 evt_id, const void *buf, size_t len, ktime_t ts); diff --git a/drivers/firmware/arm_scmi/perf.c b/drivers/firmware/arm_scmi/perf.c index e374b1125fca..f4cd5193b961 100644 --- a/drivers/firmware/arm_scmi/perf.c +++ b/drivers/firmware/arm_scmi/perf.c @@ -2,7 +2,7 @@ /* * System Control and Management Interface (SCMI) Performance Protocol * - * Copyright (C) 2018 ARM Ltd. + * Copyright (C) 2018-2021 ARM Ltd. */ #define pr_fmt(fmt) "SCMI Notifications PERF - " fmt @@ -11,6 +11,7 @@ #include <linux/of.h> #include <linux/io.h> #include <linux/io-64-nonatomic-hi-lo.h> +#include <linux/module.h> #include <linux/platform_device.h> #include <linux/pm_opp.h> #include <linux/scmi_protocol.h> @@ -175,21 +176,21 @@ static enum scmi_performance_protocol_cmd evt_2_cmd[] = { PERF_NOTIFY_LEVEL, }; -static int scmi_perf_attributes_get(const struct scmi_handle *handle, +static int scmi_perf_attributes_get(const struct scmi_protocol_handle *ph, struct scmi_perf_info *pi) { int ret; struct scmi_xfer *t; struct scmi_msg_resp_perf_attributes *attr; - ret = scmi_xfer_get_init(handle, PROTOCOL_ATTRIBUTES, - SCMI_PROTOCOL_PERF, 0, sizeof(*attr), &t); + ret = ph->xops->xfer_get_init(ph, PROTOCOL_ATTRIBUTES, 0, + sizeof(*attr), &t); if (ret) return ret; attr = t->rx.buf; - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) { u16 flags = le16_to_cpu(attr->flags); @@ -200,28 +201,27 @@ static int scmi_perf_attributes_get(const struct scmi_handle *handle, pi->stats_size = le32_to_cpu(attr->stats_size); } - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } static int -scmi_perf_domain_attributes_get(const struct scmi_handle *handle, u32 domain, - struct perf_dom_info *dom_info) +scmi_perf_domain_attributes_get(const struct scmi_protocol_handle *ph, + u32 domain, struct perf_dom_info *dom_info) { int ret; struct scmi_xfer *t; struct scmi_msg_resp_perf_domain_attributes *attr; - ret = scmi_xfer_get_init(handle, PERF_DOMAIN_ATTRIBUTES, - SCMI_PROTOCOL_PERF, sizeof(domain), - sizeof(*attr), &t); + ret = ph->xops->xfer_get_init(ph, PERF_DOMAIN_ATTRIBUTES, + sizeof(domain), sizeof(*attr), &t); if (ret) return ret; put_unaligned_le32(domain, t->tx.buf); attr = t->rx.buf; - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) { u32 flags = le32_to_cpu(attr->flags); @@ -245,7 +245,7 @@ scmi_perf_domain_attributes_get(const struct scmi_handle *handle, u32 domain, strlcpy(dom_info->name, attr->name, SCMI_MAX_STR_SIZE); } - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } @@ -257,7 +257,7 @@ static int opp_cmp_func(const void *opp1, const void *opp2) } static int -scmi_perf_describe_levels_get(const struct scmi_handle *handle, u32 domain, +scmi_perf_describe_levels_get(const struct scmi_protocol_handle *ph, u32 domain, struct perf_dom_info *perf_dom) { int ret, cnt; @@ -268,8 +268,8 @@ scmi_perf_describe_levels_get(const struct scmi_handle *handle, u32 domain, struct scmi_msg_perf_describe_levels *dom_info; struct scmi_msg_resp_perf_describe_levels *level_info; - ret = scmi_xfer_get_init(handle, PERF_DESCRIBE_LEVELS, - SCMI_PROTOCOL_PERF, sizeof(*dom_info), 0, &t); + ret = ph->xops->xfer_get_init(ph, PERF_DESCRIBE_LEVELS, + sizeof(*dom_info), 0, &t); if (ret) return ret; @@ -281,14 +281,14 @@ scmi_perf_describe_levels_get(const struct scmi_handle *handle, u32 domain, /* Set the number of OPPs to be skipped/already read */ dom_info->level_index = cpu_to_le32(tot_opp_cnt); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (ret) break; num_returned = le16_to_cpu(level_info->num_returned); num_remaining = le16_to_cpu(level_info->num_remaining); if (tot_opp_cnt + num_returned > MAX_OPPS) { - dev_err(handle->dev, "No. of OPPs exceeded MAX_OPPS"); + dev_err(ph->dev, "No. of OPPs exceeded MAX_OPPS"); break; } @@ -299,13 +299,13 @@ scmi_perf_describe_levels_get(const struct scmi_handle *handle, u32 domain, opp->trans_latency_us = le16_to_cpu (level_info->opp[cnt].transition_latency_us); - dev_dbg(handle->dev, "Level %d Power %d Latency %dus\n", + dev_dbg(ph->dev, "Level %d Power %d Latency %dus\n", opp->perf, opp->power, opp->trans_latency_us); } tot_opp_cnt += num_returned; - scmi_reset_rx_to_maxsz(handle, t); + ph->xops->reset_rx_to_maxsz(ph, t); /* * check for both returned and remaining to avoid infinite * loop due to buggy firmware @@ -313,7 +313,7 @@ scmi_perf_describe_levels_get(const struct scmi_handle *handle, u32 domain, } while (num_returned && num_remaining); perf_dom->opp_count = tot_opp_cnt; - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); sort(perf_dom->opp, tot_opp_cnt, sizeof(*opp), opp_cmp_func, NULL); return ret; @@ -353,15 +353,15 @@ static void scmi_perf_fc_ring_db(struct scmi_fc_db_info *db) #endif } -static int scmi_perf_mb_limits_set(const struct scmi_handle *handle, u32 domain, - u32 max_perf, u32 min_perf) +static int scmi_perf_mb_limits_set(const struct scmi_protocol_handle *ph, + u32 domain, u32 max_perf, u32 min_perf) { int ret; struct scmi_xfer *t; struct scmi_perf_set_limits *limits; - ret = scmi_xfer_get_init(handle, PERF_LIMITS_SET, SCMI_PROTOCOL_PERF, - sizeof(*limits), 0, &t); + ret = ph->xops->xfer_get_init(ph, PERF_LIMITS_SET, + sizeof(*limits), 0, &t); if (ret) return ret; @@ -370,16 +370,16 @@ static int scmi_perf_mb_limits_set(const struct scmi_handle *handle, u32 domain, limits->max_level = cpu_to_le32(max_perf); limits->min_level = cpu_to_le32(min_perf); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int scmi_perf_limits_set(const struct scmi_handle *handle, u32 domain, - u32 max_perf, u32 min_perf) +static int scmi_perf_limits_set(const struct scmi_protocol_handle *ph, + u32 domain, u32 max_perf, u32 min_perf) { - struct scmi_perf_info *pi = handle->perf_priv; + struct scmi_perf_info *pi = ph->get_priv(ph); struct perf_dom_info *dom = pi->dom_info + domain; if (dom->fc_info && dom->fc_info->limit_set_addr) { @@ -389,24 +389,24 @@ static int scmi_perf_limits_set(const struct scmi_handle *handle, u32 domain, return 0; } - return scmi_perf_mb_limits_set(handle, domain, max_perf, min_perf); + return scmi_perf_mb_limits_set(ph, domain, max_perf, min_perf); } -static int scmi_perf_mb_limits_get(const struct scmi_handle *handle, u32 domain, - u32 *max_perf, u32 *min_perf) +static int scmi_perf_mb_limits_get(const struct scmi_protocol_handle *ph, + u32 domain, u32 *max_perf, u32 *min_perf) { int ret; struct scmi_xfer *t; struct scmi_perf_get_limits *limits; - ret = scmi_xfer_get_init(handle, PERF_LIMITS_GET, SCMI_PROTOCOL_PERF, - sizeof(__le32), 0, &t); + ret = ph->xops->xfer_get_init(ph, PERF_LIMITS_GET, + sizeof(__le32), 0, &t); if (ret) return ret; put_unaligned_le32(domain, t->tx.buf); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) { limits = t->rx.buf; @@ -414,14 +414,14 @@ static int scmi_perf_mb_limits_get(const struct scmi_handle *handle, u32 domain, *min_perf = le32_to_cpu(limits->min_level); } - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int scmi_perf_limits_get(const struct scmi_handle *handle, u32 domain, - u32 *max_perf, u32 *min_perf) +static int scmi_perf_limits_get(const struct scmi_protocol_handle *ph, + u32 domain, u32 *max_perf, u32 *min_perf) { - struct scmi_perf_info *pi = handle->perf_priv; + struct scmi_perf_info *pi = ph->get_priv(ph); struct perf_dom_info *dom = pi->dom_info + domain; if (dom->fc_info && dom->fc_info->limit_get_addr) { @@ -430,18 +430,17 @@ static int scmi_perf_limits_get(const struct scmi_handle *handle, u32 domain, return 0; } - return scmi_perf_mb_limits_get(handle, domain, max_perf, min_perf); + return scmi_perf_mb_limits_get(ph, domain, max_perf, min_perf); } -static int scmi_perf_mb_level_set(const struct scmi_handle *handle, u32 domain, - u32 level, bool poll) +static int scmi_perf_mb_level_set(const struct scmi_protocol_handle *ph, + u32 domain, u32 level, bool poll) { int ret; struct scmi_xfer *t; struct scmi_perf_set_level *lvl; - ret = scmi_xfer_get_init(handle, PERF_LEVEL_SET, SCMI_PROTOCOL_PERF, - sizeof(*lvl), 0, &t); + ret = ph->xops->xfer_get_init(ph, PERF_LEVEL_SET, sizeof(*lvl), 0, &t); if (ret) return ret; @@ -450,16 +449,16 @@ static int scmi_perf_mb_level_set(const struct scmi_handle *handle, u32 domain, lvl->domain = cpu_to_le32(domain); lvl->level = cpu_to_le32(level); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int scmi_perf_level_set(const struct scmi_handle *handle, u32 domain, - u32 level, bool poll) +static int scmi_perf_level_set(const struct scmi_protocol_handle *ph, + u32 domain, u32 level, bool poll) { - struct scmi_perf_info *pi = handle->perf_priv; + struct scmi_perf_info *pi = ph->get_priv(ph); struct perf_dom_info *dom = pi->dom_info + domain; if (dom->fc_info && dom->fc_info->level_set_addr) { @@ -468,35 +467,35 @@ static int scmi_perf_level_set(const struct scmi_handle *handle, u32 domain, return 0; } - return scmi_perf_mb_level_set(handle, domain, level, poll); + return scmi_perf_mb_level_set(ph, domain, level, poll); } -static int scmi_perf_mb_level_get(const struct scmi_handle *handle, u32 domain, - u32 *level, bool poll) +static int scmi_perf_mb_level_get(const struct scmi_protocol_handle *ph, + u32 domain, u32 *level, bool poll) { int ret; struct scmi_xfer *t; - ret = scmi_xfer_get_init(handle, PERF_LEVEL_GET, SCMI_PROTOCOL_PERF, - sizeof(u32), sizeof(u32), &t); + ret = ph->xops->xfer_get_init(ph, PERF_LEVEL_GET, + sizeof(u32), sizeof(u32), &t); if (ret) return ret; t->hdr.poll_completion = poll; put_unaligned_le32(domain, t->tx.buf); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) *level = get_unaligned_le32(t->rx.buf); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int scmi_perf_level_get(const struct scmi_handle *handle, u32 domain, - u32 *level, bool poll) +static int scmi_perf_level_get(const struct scmi_protocol_handle *ph, + u32 domain, u32 *level, bool poll) { - struct scmi_perf_info *pi = handle->perf_priv; + struct scmi_perf_info *pi = ph->get_priv(ph); struct perf_dom_info *dom = pi->dom_info + domain; if (dom->fc_info && dom->fc_info->level_get_addr) { @@ -504,10 +503,10 @@ static int scmi_perf_level_get(const struct scmi_handle *handle, u32 domain, return 0; } - return scmi_perf_mb_level_get(handle, domain, level, poll); + return scmi_perf_mb_level_get(ph, domain, level, poll); } -static int scmi_perf_level_limits_notify(const struct scmi_handle *handle, +static int scmi_perf_level_limits_notify(const struct scmi_protocol_handle *ph, u32 domain, int message_id, bool enable) { @@ -515,8 +514,7 @@ static int scmi_perf_level_limits_notify(const struct scmi_handle *handle, struct scmi_xfer *t; struct scmi_perf_notify_level_or_limits *notify; - ret = scmi_xfer_get_init(handle, message_id, SCMI_PROTOCOL_PERF, - sizeof(*notify), 0, &t); + ret = ph->xops->xfer_get_init(ph, message_id, sizeof(*notify), 0, &t); if (ret) return ret; @@ -524,9 +522,9 @@ static int scmi_perf_level_limits_notify(const struct scmi_handle *handle, notify->domain = cpu_to_le32(domain); notify->notify_enable = enable ? cpu_to_le32(BIT(0)) : 0; - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } @@ -540,7 +538,7 @@ static bool scmi_perf_fc_size_is_valid(u32 msg, u32 size) } static void -scmi_perf_domain_desc_fc(const struct scmi_handle *handle, u32 domain, +scmi_perf_domain_desc_fc(const struct scmi_protocol_handle *ph, u32 domain, u32 message_id, void __iomem **p_addr, struct scmi_fc_db_info **p_db) { @@ -557,9 +555,8 @@ scmi_perf_domain_desc_fc(const struct scmi_handle *handle, u32 domain, if (!p_addr) return; - ret = scmi_xfer_get_init(handle, PERF_DESCRIBE_FASTCHANNEL, - SCMI_PROTOCOL_PERF, - sizeof(*info), sizeof(*resp), &t); + ret = ph->xops->xfer_get_init(ph, PERF_DESCRIBE_FASTCHANNEL, + sizeof(*info), sizeof(*resp), &t); if (ret) return; @@ -567,7 +564,7 @@ scmi_perf_domain_desc_fc(const struct scmi_handle *handle, u32 domain, info->domain = cpu_to_le32(domain); info->message_id = cpu_to_le32(message_id); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (ret) goto err_xfer; @@ -579,20 +576,20 @@ scmi_perf_domain_desc_fc(const struct scmi_handle *handle, u32 domain, phys_addr = le32_to_cpu(resp->chan_addr_low); phys_addr |= (u64)le32_to_cpu(resp->chan_addr_high) << 32; - addr = devm_ioremap(handle->dev, phys_addr, size); + addr = devm_ioremap(ph->dev, phys_addr, size); if (!addr) goto err_xfer; *p_addr = addr; if (p_db && SUPPORTS_DOORBELL(flags)) { - db = devm_kzalloc(handle->dev, sizeof(*db), GFP_KERNEL); + db = devm_kzalloc(ph->dev, sizeof(*db), GFP_KERNEL); if (!db) goto err_xfer; size = 1 << DOORBELL_REG_WIDTH(flags); phys_addr = le32_to_cpu(resp->db_addr_low); phys_addr |= (u64)le32_to_cpu(resp->db_addr_high) << 32; - addr = devm_ioremap(handle->dev, phys_addr, size); + addr = devm_ioremap(ph->dev, phys_addr, size); if (!addr) goto err_xfer; @@ -605,25 +602,25 @@ scmi_perf_domain_desc_fc(const struct scmi_handle *handle, u32 domain, *p_db = db; } err_xfer: - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); } -static void scmi_perf_domain_init_fc(const struct scmi_handle *handle, +static void scmi_perf_domain_init_fc(const struct scmi_protocol_handle *ph, u32 domain, struct scmi_fc_info **p_fc) { struct scmi_fc_info *fc; - fc = devm_kzalloc(handle->dev, sizeof(*fc), GFP_KERNEL); + fc = devm_kzalloc(ph->dev, sizeof(*fc), GFP_KERNEL); if (!fc) return; - scmi_perf_domain_desc_fc(handle, domain, PERF_LEVEL_SET, + scmi_perf_domain_desc_fc(ph, domain, PERF_LEVEL_SET, &fc->level_set_addr, &fc->level_set_db); - scmi_perf_domain_desc_fc(handle, domain, PERF_LEVEL_GET, + scmi_perf_domain_desc_fc(ph, domain, PERF_LEVEL_GET, &fc->level_get_addr, NULL); - scmi_perf_domain_desc_fc(handle, domain, PERF_LIMITS_SET, + scmi_perf_domain_desc_fc(ph, domain, PERF_LIMITS_SET, &fc->limit_set_addr, &fc->limit_set_db); - scmi_perf_domain_desc_fc(handle, domain, PERF_LIMITS_GET, + scmi_perf_domain_desc_fc(ph, domain, PERF_LIMITS_GET, &fc->limit_get_addr, NULL); *p_fc = fc; } @@ -640,14 +637,14 @@ static int scmi_dev_domain_id(struct device *dev) return clkspec.args[0]; } -static int scmi_dvfs_device_opps_add(const struct scmi_handle *handle, +static int scmi_dvfs_device_opps_add(const struct scmi_protocol_handle *ph, struct device *dev) { int idx, ret, domain; unsigned long freq; struct scmi_opp *opp; struct perf_dom_info *dom; - struct scmi_perf_info *pi = handle->perf_priv; + struct scmi_perf_info *pi = ph->get_priv(ph); domain = scmi_dev_domain_id(dev); if (domain < 0) @@ -672,11 +669,12 @@ static int scmi_dvfs_device_opps_add(const struct scmi_handle *handle, return 0; } -static int scmi_dvfs_transition_latency_get(const struct scmi_handle *handle, - struct device *dev) +static int +scmi_dvfs_transition_latency_get(const struct scmi_protocol_handle *ph, + struct device *dev) { struct perf_dom_info *dom; - struct scmi_perf_info *pi = handle->perf_priv; + struct scmi_perf_info *pi = ph->get_priv(ph); int domain = scmi_dev_domain_id(dev); if (domain < 0) @@ -687,35 +685,35 @@ static int scmi_dvfs_transition_latency_get(const struct scmi_handle *handle, return dom->opp[dom->opp_count - 1].trans_latency_us * 1000; } -static int scmi_dvfs_freq_set(const struct scmi_handle *handle, u32 domain, +static int scmi_dvfs_freq_set(const struct scmi_protocol_handle *ph, u32 domain, unsigned long freq, bool poll) { - struct scmi_perf_info *pi = handle->perf_priv; + struct scmi_perf_info *pi = ph->get_priv(ph); struct perf_dom_info *dom = pi->dom_info + domain; - return scmi_perf_level_set(handle, domain, freq / dom->mult_factor, - poll); + return scmi_perf_level_set(ph, domain, freq / dom->mult_factor, poll); } -static int scmi_dvfs_freq_get(const struct scmi_handle *handle, u32 domain, +static int scmi_dvfs_freq_get(const struct scmi_protocol_handle *ph, u32 domain, unsigned long *freq, bool poll) { int ret; u32 level; - struct scmi_perf_info *pi = handle->perf_priv; + struct scmi_perf_info *pi = ph->get_priv(ph); struct perf_dom_info *dom = pi->dom_info + domain; - ret = scmi_perf_level_get(handle, domain, &level, poll); + ret = scmi_perf_level_get(ph, domain, &level, poll); if (!ret) *freq = level * dom->mult_factor; return ret; } -static int scmi_dvfs_est_power_get(const struct scmi_handle *handle, u32 domain, - unsigned long *freq, unsigned long *power) +static int scmi_dvfs_est_power_get(const struct scmi_protocol_handle *ph, + u32 domain, unsigned long *freq, + unsigned long *power) { - struct scmi_perf_info *pi = handle->perf_priv; + struct scmi_perf_info *pi = ph->get_priv(ph); struct perf_dom_info *dom; unsigned long opp_freq; int idx, ret = -EINVAL; @@ -739,25 +737,25 @@ static int scmi_dvfs_est_power_get(const struct scmi_handle *handle, u32 domain, return ret; } -static bool scmi_fast_switch_possible(const struct scmi_handle *handle, +static bool scmi_fast_switch_possible(const struct scmi_protocol_handle *ph, struct device *dev) { struct perf_dom_info *dom; - struct scmi_perf_info *pi = handle->perf_priv; + struct scmi_perf_info *pi = ph->get_priv(ph); dom = pi->dom_info + scmi_dev_domain_id(dev); return dom->fc_info && dom->fc_info->level_set_addr; } -static bool scmi_power_scale_mw_get(const struct scmi_handle *handle) +static bool scmi_power_scale_mw_get(const struct scmi_protocol_handle *ph) { - struct scmi_perf_info *pi = handle->perf_priv; + struct scmi_perf_info *pi = ph->get_priv(ph); return pi->power_scale_mw; } -static const struct scmi_perf_ops perf_ops = { +static const struct scmi_perf_proto_ops perf_proto_ops = { .limits_set = scmi_perf_limits_set, .limits_get = scmi_perf_limits_get, .level_set = scmi_perf_level_set, @@ -772,7 +770,7 @@ static const struct scmi_perf_ops perf_ops = { .power_scale_mw_get = scmi_power_scale_mw_get, }; -static int scmi_perf_set_notify_enabled(const struct scmi_handle *handle, +static int scmi_perf_set_notify_enabled(const struct scmi_protocol_handle *ph, u8 evt_id, u32 src_id, bool enable) { int ret, cmd_id; @@ -781,7 +779,7 @@ static int scmi_perf_set_notify_enabled(const struct scmi_handle *handle, return -EINVAL; cmd_id = evt_2_cmd[evt_id]; - ret = scmi_perf_level_limits_notify(handle, src_id, cmd_id, enable); + ret = scmi_perf_level_limits_notify(ph, src_id, cmd_id, enable); if (ret) pr_debug("FAIL_ENABLED - evt[%X] dom[%d] - ret:%d\n", evt_id, src_id, ret); @@ -789,7 +787,7 @@ static int scmi_perf_set_notify_enabled(const struct scmi_handle *handle, return ret; } -static void *scmi_perf_fill_custom_report(const struct scmi_handle *handle, +static void *scmi_perf_fill_custom_report(const struct scmi_protocol_handle *ph, u8 evt_id, ktime_t timestamp, const void *payld, size_t payld_sz, void *report, u32 *src_id) @@ -837,6 +835,16 @@ static void *scmi_perf_fill_custom_report(const struct scmi_handle *handle, return rep; } +static int scmi_perf_get_num_sources(const struct scmi_protocol_handle *ph) +{ + struct scmi_perf_info *pi = ph->get_priv(ph); + + if (!pi) + return -EINVAL; + + return pi->num_domains; +} + static const struct scmi_event perf_events[] = { { .id = SCMI_EVENT_PERFORMANCE_LIMITS_CHANGED, @@ -851,28 +859,36 @@ static const struct scmi_event perf_events[] = { }; static const struct scmi_event_ops perf_event_ops = { + .get_num_sources = scmi_perf_get_num_sources, .set_notify_enabled = scmi_perf_set_notify_enabled, .fill_custom_report = scmi_perf_fill_custom_report, }; -static int scmi_perf_protocol_init(struct scmi_handle *handle) +static const struct scmi_protocol_events perf_protocol_events = { + .queue_sz = SCMI_PROTO_QUEUE_SZ, + .ops = &perf_event_ops, + .evts = perf_events, + .num_events = ARRAY_SIZE(perf_events), +}; + +static int scmi_perf_protocol_init(const struct scmi_protocol_handle *ph) { int domain; u32 version; struct scmi_perf_info *pinfo; - scmi_version_get(handle, SCMI_PROTOCOL_PERF, &version); + ph->xops->version_get(ph, &version); - dev_dbg(handle->dev, "Performance Version %d.%d\n", + dev_dbg(ph->dev, "Performance Version %d.%d\n", PROTOCOL_REV_MAJOR(version), PROTOCOL_REV_MINOR(version)); - pinfo = devm_kzalloc(handle->dev, sizeof(*pinfo), GFP_KERNEL); + pinfo = devm_kzalloc(ph->dev, sizeof(*pinfo), GFP_KERNEL); if (!pinfo) return -ENOMEM; - scmi_perf_attributes_get(handle, pinfo); + scmi_perf_attributes_get(ph, pinfo); - pinfo->dom_info = devm_kcalloc(handle->dev, pinfo->num_domains, + pinfo->dom_info = devm_kcalloc(ph->dev, pinfo->num_domains, sizeof(*pinfo->dom_info), GFP_KERNEL); if (!pinfo->dom_info) return -ENOMEM; @@ -880,24 +896,24 @@ static int scmi_perf_protocol_init(struct scmi_handle *handle) for (domain = 0; domain < pinfo->num_domains; domain++) { struct perf_dom_info *dom = pinfo->dom_info + domain; - scmi_perf_domain_attributes_get(handle, domain, dom); - scmi_perf_describe_levels_get(handle, domain, dom); + scmi_perf_domain_attributes_get(ph, domain, dom); + scmi_perf_describe_levels_get(ph, domain, dom); if (dom->perf_fastchannels) - scmi_perf_domain_init_fc(handle, domain, &dom->fc_info); + scmi_perf_domain_init_fc(ph, domain, &dom->fc_info); } - scmi_register_protocol_events(handle, - SCMI_PROTOCOL_PERF, SCMI_PROTO_QUEUE_SZ, - &perf_event_ops, perf_events, - ARRAY_SIZE(perf_events), - pinfo->num_domains); - pinfo->version = version; - handle->perf_ops = &perf_ops; - handle->perf_priv = pinfo; - return 0; + return ph->set_priv(ph, pinfo); } -DEFINE_SCMI_PROTOCOL_REGISTER_UNREGISTER(SCMI_PROTOCOL_PERF, perf) +static const struct scmi_protocol scmi_perf = { + .id = SCMI_PROTOCOL_PERF, + .owner = THIS_MODULE, + .instance_init = &scmi_perf_protocol_init, + .ops = &perf_proto_ops, + .events = &perf_protocol_events, +}; + +DEFINE_SCMI_PROTOCOL_REGISTER_UNREGISTER(perf, scmi_perf) diff --git a/drivers/firmware/arm_scmi/power.c b/drivers/firmware/arm_scmi/power.c index 1f37258e9bee..ad2ab080f344 100644 --- a/drivers/firmware/arm_scmi/power.c +++ b/drivers/firmware/arm_scmi/power.c @@ -2,11 +2,12 @@ /* * System Control and Management Interface (SCMI) Power Protocol * - * Copyright (C) 2018 ARM Ltd. + * Copyright (C) 2018-2021 ARM Ltd. */ #define pr_fmt(fmt) "SCMI Notifications POWER - " fmt +#include <linux/module.h> #include <linux/scmi_protocol.h> #include "common.h" @@ -68,21 +69,21 @@ struct scmi_power_info { struct power_dom_info *dom_info; }; -static int scmi_power_attributes_get(const struct scmi_handle *handle, +static int scmi_power_attributes_get(const struct scmi_protocol_handle *ph, struct scmi_power_info *pi) { int ret; struct scmi_xfer *t; struct scmi_msg_resp_power_attributes *attr; - ret = scmi_xfer_get_init(handle, PROTOCOL_ATTRIBUTES, - SCMI_PROTOCOL_POWER, 0, sizeof(*attr), &t); + ret = ph->xops->xfer_get_init(ph, PROTOCOL_ATTRIBUTES, + 0, sizeof(*attr), &t); if (ret) return ret; attr = t->rx.buf; - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) { pi->num_domains = le16_to_cpu(attr->num_domains); pi->stats_addr = le32_to_cpu(attr->stats_addr_low) | @@ -90,28 +91,27 @@ static int scmi_power_attributes_get(const struct scmi_handle *handle, pi->stats_size = le32_to_cpu(attr->stats_size); } - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } static int -scmi_power_domain_attributes_get(const struct scmi_handle *handle, u32 domain, - struct power_dom_info *dom_info) +scmi_power_domain_attributes_get(const struct scmi_protocol_handle *ph, + u32 domain, struct power_dom_info *dom_info) { int ret; struct scmi_xfer *t; struct scmi_msg_resp_power_domain_attributes *attr; - ret = scmi_xfer_get_init(handle, POWER_DOMAIN_ATTRIBUTES, - SCMI_PROTOCOL_POWER, sizeof(domain), - sizeof(*attr), &t); + ret = ph->xops->xfer_get_init(ph, POWER_DOMAIN_ATTRIBUTES, + sizeof(domain), sizeof(*attr), &t); if (ret) return ret; put_unaligned_le32(domain, t->tx.buf); attr = t->rx.buf; - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) { u32 flags = le32_to_cpu(attr->flags); @@ -121,19 +121,18 @@ scmi_power_domain_attributes_get(const struct scmi_handle *handle, u32 domain, strlcpy(dom_info->name, attr->name, SCMI_MAX_STR_SIZE); } - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int -scmi_power_state_set(const struct scmi_handle *handle, u32 domain, u32 state) +static int scmi_power_state_set(const struct scmi_protocol_handle *ph, + u32 domain, u32 state) { int ret; struct scmi_xfer *t; struct scmi_power_set_state *st; - ret = scmi_xfer_get_init(handle, POWER_STATE_SET, SCMI_PROTOCOL_POWER, - sizeof(*st), 0, &t); + ret = ph->xops->xfer_get_init(ph, POWER_STATE_SET, sizeof(*st), 0, &t); if (ret) return ret; @@ -142,64 +141,64 @@ scmi_power_state_set(const struct scmi_handle *handle, u32 domain, u32 state) st->domain = cpu_to_le32(domain); st->state = cpu_to_le32(state); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int -scmi_power_state_get(const struct scmi_handle *handle, u32 domain, u32 *state) +static int scmi_power_state_get(const struct scmi_protocol_handle *ph, + u32 domain, u32 *state) { int ret; struct scmi_xfer *t; - ret = scmi_xfer_get_init(handle, POWER_STATE_GET, SCMI_PROTOCOL_POWER, - sizeof(u32), sizeof(u32), &t); + ret = ph->xops->xfer_get_init(ph, POWER_STATE_GET, sizeof(u32), sizeof(u32), &t); if (ret) return ret; put_unaligned_le32(domain, t->tx.buf); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) *state = get_unaligned_le32(t->rx.buf); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int scmi_power_num_domains_get(const struct scmi_handle *handle) +static int scmi_power_num_domains_get(const struct scmi_protocol_handle *ph) { - struct scmi_power_info *pi = handle->power_priv; + struct scmi_power_info *pi = ph->get_priv(ph); return pi->num_domains; } -static char *scmi_power_name_get(const struct scmi_handle *handle, u32 domain) +static char *scmi_power_name_get(const struct scmi_protocol_handle *ph, + u32 domain) { - struct scmi_power_info *pi = handle->power_priv; + struct scmi_power_info *pi = ph->get_priv(ph); struct power_dom_info *dom = pi->dom_info + domain; return dom->name; } -static const struct scmi_power_ops power_ops = { +static const struct scmi_power_proto_ops power_proto_ops = { .num_domains_get = scmi_power_num_domains_get, .name_get = scmi_power_name_get, .state_set = scmi_power_state_set, .state_get = scmi_power_state_get, }; -static int scmi_power_request_notify(const struct scmi_handle *handle, +static int scmi_power_request_notify(const struct scmi_protocol_handle *ph, u32 domain, bool enable) { int ret; struct scmi_xfer *t; struct scmi_power_state_notify *notify; - ret = scmi_xfer_get_init(handle, POWER_STATE_NOTIFY, - SCMI_PROTOCOL_POWER, sizeof(*notify), 0, &t); + ret = ph->xops->xfer_get_init(ph, POWER_STATE_NOTIFY, + sizeof(*notify), 0, &t); if (ret) return ret; @@ -207,18 +206,18 @@ static int scmi_power_request_notify(const struct scmi_handle *handle, notify->domain = cpu_to_le32(domain); notify->notify_enable = enable ? cpu_to_le32(BIT(0)) : 0; - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int scmi_power_set_notify_enabled(const struct scmi_handle *handle, +static int scmi_power_set_notify_enabled(const struct scmi_protocol_handle *ph, u8 evt_id, u32 src_id, bool enable) { int ret; - ret = scmi_power_request_notify(handle, src_id, enable); + ret = scmi_power_request_notify(ph, src_id, enable); if (ret) pr_debug("FAIL_ENABLE - evt[%X] dom[%d] - ret:%d\n", evt_id, src_id, ret); @@ -226,10 +225,11 @@ static int scmi_power_set_notify_enabled(const struct scmi_handle *handle, return ret; } -static void *scmi_power_fill_custom_report(const struct scmi_handle *handle, - u8 evt_id, ktime_t timestamp, - const void *payld, size_t payld_sz, - void *report, u32 *src_id) +static void * +scmi_power_fill_custom_report(const struct scmi_protocol_handle *ph, + u8 evt_id, ktime_t timestamp, + const void *payld, size_t payld_sz, + void *report, u32 *src_id) { const struct scmi_power_state_notify_payld *p = payld; struct scmi_power_state_changed_report *r = report; @@ -246,6 +246,16 @@ static void *scmi_power_fill_custom_report(const struct scmi_handle *handle, return r; } +static int scmi_power_get_num_sources(const struct scmi_protocol_handle *ph) +{ + struct scmi_power_info *pinfo = ph->get_priv(ph); + + if (!pinfo) + return -EINVAL; + + return pinfo->num_domains; +} + static const struct scmi_event power_events[] = { { .id = SCMI_EVENT_POWER_STATE_CHANGED, @@ -256,28 +266,36 @@ static const struct scmi_event power_events[] = { }; static const struct scmi_event_ops power_event_ops = { + .get_num_sources = scmi_power_get_num_sources, .set_notify_enabled = scmi_power_set_notify_enabled, .fill_custom_report = scmi_power_fill_custom_report, }; -static int scmi_power_protocol_init(struct scmi_handle *handle) +static const struct scmi_protocol_events power_protocol_events = { + .queue_sz = SCMI_PROTO_QUEUE_SZ, + .ops = &power_event_ops, + .evts = power_events, + .num_events = ARRAY_SIZE(power_events), +}; + +static int scmi_power_protocol_init(const struct scmi_protocol_handle *ph) { int domain; u32 version; struct scmi_power_info *pinfo; - scmi_version_get(handle, SCMI_PROTOCOL_POWER, &version); + ph->xops->version_get(ph, &version); - dev_dbg(handle->dev, "Power Version %d.%d\n", + dev_dbg(ph->dev, "Power Version %d.%d\n", PROTOCOL_REV_MAJOR(version), PROTOCOL_REV_MINOR(version)); - pinfo = devm_kzalloc(handle->dev, sizeof(*pinfo), GFP_KERNEL); + pinfo = devm_kzalloc(ph->dev, sizeof(*pinfo), GFP_KERNEL); if (!pinfo) return -ENOMEM; - scmi_power_attributes_get(handle, pinfo); + scmi_power_attributes_get(ph, pinfo); - pinfo->dom_info = devm_kcalloc(handle->dev, pinfo->num_domains, + pinfo->dom_info = devm_kcalloc(ph->dev, pinfo->num_domains, sizeof(*pinfo->dom_info), GFP_KERNEL); if (!pinfo->dom_info) return -ENOMEM; @@ -285,20 +303,20 @@ static int scmi_power_protocol_init(struct scmi_handle *handle) for (domain = 0; domain < pinfo->num_domains; domain++) { struct power_dom_info *dom = pinfo->dom_info + domain; - scmi_power_domain_attributes_get(handle, domain, dom); + scmi_power_domain_attributes_get(ph, domain, dom); } - scmi_register_protocol_events(handle, - SCMI_PROTOCOL_POWER, SCMI_PROTO_QUEUE_SZ, - &power_event_ops, power_events, - ARRAY_SIZE(power_events), - pinfo->num_domains); - pinfo->version = version; - handle->power_ops = &power_ops; - handle->power_priv = pinfo; - return 0; + return ph->set_priv(ph, pinfo); } -DEFINE_SCMI_PROTOCOL_REGISTER_UNREGISTER(SCMI_PROTOCOL_POWER, power) +static const struct scmi_protocol scmi_power = { + .id = SCMI_PROTOCOL_POWER, + .owner = THIS_MODULE, + .instance_init = &scmi_power_protocol_init, + .ops = &power_proto_ops, + .events = &power_protocol_events, +}; + +DEFINE_SCMI_PROTOCOL_REGISTER_UNREGISTER(power, scmi_power) diff --git a/drivers/firmware/arm_scmi/reset.c b/drivers/firmware/arm_scmi/reset.c index a981a22cfe89..9bf2478ec6d1 100644 --- a/drivers/firmware/arm_scmi/reset.c +++ b/drivers/firmware/arm_scmi/reset.c @@ -2,11 +2,12 @@ /* * System Control and Management Interface (SCMI) Reset Protocol * - * Copyright (C) 2019 ARM Ltd. + * Copyright (C) 2019-2021 ARM Ltd. */ #define pr_fmt(fmt) "SCMI Notifications RESET - " fmt +#include <linux/module.h> #include <linux/scmi_protocol.h> #include "common.h" @@ -64,46 +65,45 @@ struct scmi_reset_info { struct reset_dom_info *dom_info; }; -static int scmi_reset_attributes_get(const struct scmi_handle *handle, +static int scmi_reset_attributes_get(const struct scmi_protocol_handle *ph, struct scmi_reset_info *pi) { int ret; struct scmi_xfer *t; u32 attr; - ret = scmi_xfer_get_init(handle, PROTOCOL_ATTRIBUTES, - SCMI_PROTOCOL_RESET, 0, sizeof(attr), &t); + ret = ph->xops->xfer_get_init(ph, PROTOCOL_ATTRIBUTES, + 0, sizeof(attr), &t); if (ret) return ret; - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) { attr = get_unaligned_le32(t->rx.buf); pi->num_domains = attr & NUM_RESET_DOMAIN_MASK; } - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } static int -scmi_reset_domain_attributes_get(const struct scmi_handle *handle, u32 domain, - struct reset_dom_info *dom_info) +scmi_reset_domain_attributes_get(const struct scmi_protocol_handle *ph, + u32 domain, struct reset_dom_info *dom_info) { int ret; struct scmi_xfer *t; struct scmi_msg_resp_reset_domain_attributes *attr; - ret = scmi_xfer_get_init(handle, RESET_DOMAIN_ATTRIBUTES, - SCMI_PROTOCOL_RESET, sizeof(domain), - sizeof(*attr), &t); + ret = ph->xops->xfer_get_init(ph, RESET_DOMAIN_ATTRIBUTES, + sizeof(domain), sizeof(*attr), &t); if (ret) return ret; put_unaligned_le32(domain, t->tx.buf); attr = t->rx.buf; - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) { u32 attributes = le32_to_cpu(attr->attributes); @@ -115,47 +115,49 @@ scmi_reset_domain_attributes_get(const struct scmi_handle *handle, u32 domain, strlcpy(dom_info->name, attr->name, SCMI_MAX_STR_SIZE); } - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int scmi_reset_num_domains_get(const struct scmi_handle *handle) +static int scmi_reset_num_domains_get(const struct scmi_protocol_handle *ph) { - struct scmi_reset_info *pi = handle->reset_priv; + struct scmi_reset_info *pi = ph->get_priv(ph); return pi->num_domains; } -static char *scmi_reset_name_get(const struct scmi_handle *handle, u32 domain) +static char *scmi_reset_name_get(const struct scmi_protocol_handle *ph, + u32 domain) { - struct scmi_reset_info *pi = handle->reset_priv; + struct scmi_reset_info *pi = ph->get_priv(ph); + struct reset_dom_info *dom = pi->dom_info + domain; return dom->name; } -static int scmi_reset_latency_get(const struct scmi_handle *handle, u32 domain) +static int scmi_reset_latency_get(const struct scmi_protocol_handle *ph, + u32 domain) { - struct scmi_reset_info *pi = handle->reset_priv; + struct scmi_reset_info *pi = ph->get_priv(ph); struct reset_dom_info *dom = pi->dom_info + domain; return dom->latency_us; } -static int scmi_domain_reset(const struct scmi_handle *handle, u32 domain, +static int scmi_domain_reset(const struct scmi_protocol_handle *ph, u32 domain, u32 flags, u32 state) { int ret; struct scmi_xfer *t; struct scmi_msg_reset_domain_reset *dom; - struct scmi_reset_info *pi = handle->reset_priv; + struct scmi_reset_info *pi = ph->get_priv(ph); struct reset_dom_info *rdom = pi->dom_info + domain; if (rdom->async_reset) flags |= ASYNCHRONOUS_RESET; - ret = scmi_xfer_get_init(handle, RESET, SCMI_PROTOCOL_RESET, - sizeof(*dom), 0, &t); + ret = ph->xops->xfer_get_init(ph, RESET, sizeof(*dom), 0, &t); if (ret) return ret; @@ -165,34 +167,35 @@ static int scmi_domain_reset(const struct scmi_handle *handle, u32 domain, dom->reset_state = cpu_to_le32(state); if (rdom->async_reset) - ret = scmi_do_xfer_with_response(handle, t); + ret = ph->xops->do_xfer_with_response(ph, t); else - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int scmi_reset_domain_reset(const struct scmi_handle *handle, u32 domain) +static int scmi_reset_domain_reset(const struct scmi_protocol_handle *ph, + u32 domain) { - return scmi_domain_reset(handle, domain, AUTONOMOUS_RESET, + return scmi_domain_reset(ph, domain, AUTONOMOUS_RESET, ARCH_COLD_RESET); } static int -scmi_reset_domain_assert(const struct scmi_handle *handle, u32 domain) +scmi_reset_domain_assert(const struct scmi_protocol_handle *ph, u32 domain) { - return scmi_domain_reset(handle, domain, EXPLICIT_RESET_ASSERT, + return scmi_domain_reset(ph, domain, EXPLICIT_RESET_ASSERT, ARCH_COLD_RESET); } static int -scmi_reset_domain_deassert(const struct scmi_handle *handle, u32 domain) +scmi_reset_domain_deassert(const struct scmi_protocol_handle *ph, u32 domain) { - return scmi_domain_reset(handle, domain, 0, ARCH_COLD_RESET); + return scmi_domain_reset(ph, domain, 0, ARCH_COLD_RESET); } -static const struct scmi_reset_ops reset_ops = { +static const struct scmi_reset_proto_ops reset_proto_ops = { .num_domains_get = scmi_reset_num_domains_get, .name_get = scmi_reset_name_get, .latency_get = scmi_reset_latency_get, @@ -201,16 +204,15 @@ static const struct scmi_reset_ops reset_ops = { .deassert = scmi_reset_domain_deassert, }; -static int scmi_reset_notify(const struct scmi_handle *handle, u32 domain_id, - bool enable) +static int scmi_reset_notify(const struct scmi_protocol_handle *ph, + u32 domain_id, bool enable) { int ret; u32 evt_cntl = enable ? RESET_TP_NOTIFY_ALL : 0; struct scmi_xfer *t; struct scmi_msg_reset_notify *cfg; - ret = scmi_xfer_get_init(handle, RESET_NOTIFY, - SCMI_PROTOCOL_RESET, sizeof(*cfg), 0, &t); + ret = ph->xops->xfer_get_init(ph, RESET_NOTIFY, sizeof(*cfg), 0, &t); if (ret) return ret; @@ -218,18 +220,18 @@ static int scmi_reset_notify(const struct scmi_handle *handle, u32 domain_id, cfg->id = cpu_to_le32(domain_id); cfg->event_control = cpu_to_le32(evt_cntl); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int scmi_reset_set_notify_enabled(const struct scmi_handle *handle, +static int scmi_reset_set_notify_enabled(const struct scmi_protocol_handle *ph, u8 evt_id, u32 src_id, bool enable) { int ret; - ret = scmi_reset_notify(handle, src_id, enable); + ret = scmi_reset_notify(ph, src_id, enable); if (ret) pr_debug("FAIL_ENABLED - evt[%X] dom[%d] - ret:%d\n", evt_id, src_id, ret); @@ -237,10 +239,11 @@ static int scmi_reset_set_notify_enabled(const struct scmi_handle *handle, return ret; } -static void *scmi_reset_fill_custom_report(const struct scmi_handle *handle, - u8 evt_id, ktime_t timestamp, - const void *payld, size_t payld_sz, - void *report, u32 *src_id) +static void * +scmi_reset_fill_custom_report(const struct scmi_protocol_handle *ph, + u8 evt_id, ktime_t timestamp, + const void *payld, size_t payld_sz, + void *report, u32 *src_id) { const struct scmi_reset_issued_notify_payld *p = payld; struct scmi_reset_issued_report *r = report; @@ -257,6 +260,16 @@ static void *scmi_reset_fill_custom_report(const struct scmi_handle *handle, return r; } +static int scmi_reset_get_num_sources(const struct scmi_protocol_handle *ph) +{ + struct scmi_reset_info *pinfo = ph->get_priv(ph); + + if (!pinfo) + return -EINVAL; + + return pinfo->num_domains; +} + static const struct scmi_event reset_events[] = { { .id = SCMI_EVENT_RESET_ISSUED, @@ -266,28 +279,36 @@ static const struct scmi_event reset_events[] = { }; static const struct scmi_event_ops reset_event_ops = { + .get_num_sources = scmi_reset_get_num_sources, .set_notify_enabled = scmi_reset_set_notify_enabled, .fill_custom_report = scmi_reset_fill_custom_report, }; -static int scmi_reset_protocol_init(struct scmi_handle *handle) +static const struct scmi_protocol_events reset_protocol_events = { + .queue_sz = SCMI_PROTO_QUEUE_SZ, + .ops = &reset_event_ops, + .evts = reset_events, + .num_events = ARRAY_SIZE(reset_events), +}; + +static int scmi_reset_protocol_init(const struct scmi_protocol_handle *ph) { int domain; u32 version; struct scmi_reset_info *pinfo; - scmi_version_get(handle, SCMI_PROTOCOL_RESET, &version); + ph->xops->version_get(ph, &version); - dev_dbg(handle->dev, "Reset Version %d.%d\n", + dev_dbg(ph->dev, "Reset Version %d.%d\n", PROTOCOL_REV_MAJOR(version), PROTOCOL_REV_MINOR(version)); - pinfo = devm_kzalloc(handle->dev, sizeof(*pinfo), GFP_KERNEL); + pinfo = devm_kzalloc(ph->dev, sizeof(*pinfo), GFP_KERNEL); if (!pinfo) return -ENOMEM; - scmi_reset_attributes_get(handle, pinfo); + scmi_reset_attributes_get(ph, pinfo); - pinfo->dom_info = devm_kcalloc(handle->dev, pinfo->num_domains, + pinfo->dom_info = devm_kcalloc(ph->dev, pinfo->num_domains, sizeof(*pinfo->dom_info), GFP_KERNEL); if (!pinfo->dom_info) return -ENOMEM; @@ -295,20 +316,19 @@ static int scmi_reset_protocol_init(struct scmi_handle *handle) for (domain = 0; domain < pinfo->num_domains; domain++) { struct reset_dom_info *dom = pinfo->dom_info + domain; - scmi_reset_domain_attributes_get(handle, domain, dom); + scmi_reset_domain_attributes_get(ph, domain, dom); } - scmi_register_protocol_events(handle, - SCMI_PROTOCOL_RESET, SCMI_PROTO_QUEUE_SZ, - &reset_event_ops, reset_events, - ARRAY_SIZE(reset_events), - pinfo->num_domains); - pinfo->version = version; - handle->reset_ops = &reset_ops; - handle->reset_priv = pinfo; - - return 0; + return ph->set_priv(ph, pinfo); } -DEFINE_SCMI_PROTOCOL_REGISTER_UNREGISTER(SCMI_PROTOCOL_RESET, reset) +static const struct scmi_protocol scmi_reset = { + .id = SCMI_PROTOCOL_RESET, + .owner = THIS_MODULE, + .instance_init = &scmi_reset_protocol_init, + .ops = &reset_proto_ops, + .events = &reset_protocol_events, +}; + +DEFINE_SCMI_PROTOCOL_REGISTER_UNREGISTER(reset, scmi_reset) diff --git a/drivers/firmware/arm_scmi/scmi_pm_domain.c b/drivers/firmware/arm_scmi/scmi_pm_domain.c index 9e44479f0284..9d36d5c0622d 100644 --- a/drivers/firmware/arm_scmi/scmi_pm_domain.c +++ b/drivers/firmware/arm_scmi/scmi_pm_domain.c @@ -2,7 +2,7 @@ /* * SCMI Generic power domain support. * - * Copyright (C) 2018 ARM Ltd. + * Copyright (C) 2018-2021 ARM Ltd. */ #include <linux/err.h> @@ -11,9 +11,11 @@ #include <linux/pm_domain.h> #include <linux/scmi_protocol.h> +static const struct scmi_power_proto_ops *power_ops; + struct scmi_pm_domain { struct generic_pm_domain genpd; - const struct scmi_handle *handle; + const struct scmi_protocol_handle *ph; const char *name; u32 domain; }; @@ -25,16 +27,15 @@ static int scmi_pd_power(struct generic_pm_domain *domain, bool power_on) int ret; u32 state, ret_state; struct scmi_pm_domain *pd = to_scmi_pd(domain); - const struct scmi_power_ops *ops = pd->handle->power_ops; if (power_on) state = SCMI_POWER_STATE_GENERIC_ON; else state = SCMI_POWER_STATE_GENERIC_OFF; - ret = ops->state_set(pd->handle, pd->domain, state); + ret = power_ops->state_set(pd->ph, pd->domain, state); if (!ret) - ret = ops->state_get(pd->handle, pd->domain, &ret_state); + ret = power_ops->state_get(pd->ph, pd->domain, &ret_state); if (!ret && state != ret_state) return -EIO; @@ -60,11 +61,16 @@ static int scmi_pm_domain_probe(struct scmi_device *sdev) struct genpd_onecell_data *scmi_pd_data; struct generic_pm_domain **domains; const struct scmi_handle *handle = sdev->handle; + struct scmi_protocol_handle *ph; - if (!handle || !handle->power_ops) + if (!handle) return -ENODEV; - num_domains = handle->power_ops->num_domains_get(handle); + power_ops = handle->devm_protocol_get(sdev, SCMI_PROTOCOL_POWER, &ph); + if (IS_ERR(power_ops)) + return PTR_ERR(power_ops); + + num_domains = power_ops->num_domains_get(ph); if (num_domains < 0) { dev_err(dev, "number of domains not found\n"); return num_domains; @@ -85,14 +91,14 @@ static int scmi_pm_domain_probe(struct scmi_device *sdev) for (i = 0; i < num_domains; i++, scmi_pd++) { u32 state; - if (handle->power_ops->state_get(handle, i, &state)) { + if (power_ops->state_get(ph, i, &state)) { dev_warn(dev, "failed to get state for domain %d\n", i); continue; } scmi_pd->domain = i; - scmi_pd->handle = handle; - scmi_pd->name = handle->power_ops->name_get(handle, i); + scmi_pd->ph = ph; + scmi_pd->name = power_ops->name_get(ph, i); scmi_pd->genpd.name = scmi_pd->name; scmi_pd->genpd.power_off = scmi_pd_power_off; scmi_pd->genpd.power_on = scmi_pd_power_on; diff --git a/drivers/firmware/arm_scmi/sensors.c b/drivers/firmware/arm_scmi/sensors.c index 4541b891b733..2c88aa221559 100644 --- a/drivers/firmware/arm_scmi/sensors.c +++ b/drivers/firmware/arm_scmi/sensors.c @@ -2,12 +2,13 @@ /* * System Control and Management Interface (SCMI) Sensor Protocol * - * Copyright (C) 2018-2020 ARM Ltd. + * Copyright (C) 2018-2021 ARM Ltd. */ #define pr_fmt(fmt) "SCMI Notifications SENSOR - " fmt #include <linux/bitfield.h> +#include <linux/module.h> #include <linux/scmi_protocol.h> #include "common.h" @@ -201,21 +202,21 @@ struct sensors_info { struct scmi_sensor_info *sensors; }; -static int scmi_sensor_attributes_get(const struct scmi_handle *handle, +static int scmi_sensor_attributes_get(const struct scmi_protocol_handle *ph, struct sensors_info *si) { int ret; struct scmi_xfer *t; struct scmi_msg_resp_sensor_attributes *attr; - ret = scmi_xfer_get_init(handle, PROTOCOL_ATTRIBUTES, - SCMI_PROTOCOL_SENSOR, 0, sizeof(*attr), &t); + ret = ph->xops->xfer_get_init(ph, PROTOCOL_ATTRIBUTES, + 0, sizeof(*attr), &t); if (ret) return ret; attr = t->rx.buf; - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) { si->num_sensors = le16_to_cpu(attr->num_sensors); si->max_requests = attr->max_requests; @@ -224,7 +225,7 @@ static int scmi_sensor_attributes_get(const struct scmi_handle *handle, si->reg_size = le32_to_cpu(attr->reg_size); } - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } @@ -235,7 +236,7 @@ static inline void scmi_parse_range_attrs(struct scmi_range_attrs *out, out->max_range = get_unaligned_le64((void *)&in->max_range_low); } -static int scmi_sensor_update_intervals(const struct scmi_handle *handle, +static int scmi_sensor_update_intervals(const struct scmi_protocol_handle *ph, struct scmi_sensor_info *s) { int ret, cnt; @@ -245,8 +246,8 @@ static int scmi_sensor_update_intervals(const struct scmi_handle *handle, struct scmi_msg_resp_sensor_list_update_intervals *buf; struct scmi_msg_sensor_list_update_intervals *msg; - ret = scmi_xfer_get_init(handle, SENSOR_LIST_UPDATE_INTERVALS, - SCMI_PROTOCOL_SENSOR, sizeof(*msg), 0, &ti); + ret = ph->xops->xfer_get_init(ph, SENSOR_LIST_UPDATE_INTERVALS, + sizeof(*msg), 0, &ti); if (ret) return ret; @@ -259,7 +260,7 @@ static int scmi_sensor_update_intervals(const struct scmi_handle *handle, msg->id = cpu_to_le32(s->id); msg->index = cpu_to_le32(desc_index); - ret = scmi_do_xfer(handle, ti); + ret = ph->xops->do_xfer(ph, ti); if (ret) break; @@ -277,7 +278,7 @@ static int scmi_sensor_update_intervals(const struct scmi_handle *handle, /* segmented intervals are reported in one triplet */ if (s->intervals.segmented && (num_remaining || num_returned != 3)) { - dev_err(handle->dev, + dev_err(ph->dev, "Sensor ID:%d advertises an invalid segmented interval (%d)\n", s->id, s->intervals.count); s->intervals.segmented = false; @@ -288,7 +289,7 @@ static int scmi_sensor_update_intervals(const struct scmi_handle *handle, /* Direct allocation when exceeding pre-allocated */ if (s->intervals.count >= SCMI_MAX_PREALLOC_POOL) { s->intervals.desc = - devm_kcalloc(handle->dev, + devm_kcalloc(ph->dev, s->intervals.count, sizeof(*s->intervals.desc), GFP_KERNEL); @@ -300,7 +301,7 @@ static int scmi_sensor_update_intervals(const struct scmi_handle *handle, } } } else if (desc_index + num_returned > s->intervals.count) { - dev_err(handle->dev, + dev_err(ph->dev, "No. of update intervals can't exceed %d\n", s->intervals.count); ret = -EINVAL; @@ -313,18 +314,18 @@ static int scmi_sensor_update_intervals(const struct scmi_handle *handle, desc_index += num_returned; - scmi_reset_rx_to_maxsz(handle, ti); + ph->xops->reset_rx_to_maxsz(ph, ti); /* * check for both returned and remaining to avoid infinite * loop due to buggy firmware */ } while (num_returned && num_remaining); - scmi_xfer_put(handle, ti); + ph->xops->xfer_put(ph, ti); return ret; } -static int scmi_sensor_axis_description(const struct scmi_handle *handle, +static int scmi_sensor_axis_description(const struct scmi_protocol_handle *ph, struct scmi_sensor_info *s) { int ret, cnt; @@ -334,13 +335,13 @@ static int scmi_sensor_axis_description(const struct scmi_handle *handle, struct scmi_msg_resp_sensor_axis_description *buf; struct scmi_msg_sensor_axis_description_get *msg; - s->axis = devm_kcalloc(handle->dev, s->num_axis, + s->axis = devm_kcalloc(ph->dev, s->num_axis, sizeof(*s->axis), GFP_KERNEL); if (!s->axis) return -ENOMEM; - ret = scmi_xfer_get_init(handle, SENSOR_AXIS_DESCRIPTION_GET, - SCMI_PROTOCOL_SENSOR, sizeof(*msg), 0, &te); + ret = ph->xops->xfer_get_init(ph, SENSOR_AXIS_DESCRIPTION_GET, + sizeof(*msg), 0, &te); if (ret) return ret; @@ -354,7 +355,7 @@ static int scmi_sensor_axis_description(const struct scmi_handle *handle, msg->id = cpu_to_le32(s->id); msg->axis_desc_index = cpu_to_le32(desc_index); - ret = scmi_do_xfer(handle, te); + ret = ph->xops->do_xfer(ph, te); if (ret) break; @@ -363,7 +364,7 @@ static int scmi_sensor_axis_description(const struct scmi_handle *handle, num_remaining = NUM_AXIS_REMAINING(flags); if (desc_index + num_returned > s->num_axis) { - dev_err(handle->dev, "No. of axis can't exceed %d\n", + dev_err(ph->dev, "No. of axis can't exceed %d\n", s->num_axis); break; } @@ -405,18 +406,18 @@ static int scmi_sensor_axis_description(const struct scmi_handle *handle, desc_index += num_returned; - scmi_reset_rx_to_maxsz(handle, te); + ph->xops->reset_rx_to_maxsz(ph, te); /* * check for both returned and remaining to avoid infinite * loop due to buggy firmware */ } while (num_returned && num_remaining); - scmi_xfer_put(handle, te); + ph->xops->xfer_put(ph, te); return ret; } -static int scmi_sensor_description_get(const struct scmi_handle *handle, +static int scmi_sensor_description_get(const struct scmi_protocol_handle *ph, struct sensors_info *si) { int ret, cnt; @@ -425,8 +426,8 @@ static int scmi_sensor_description_get(const struct scmi_handle *handle, struct scmi_xfer *t; struct scmi_msg_resp_sensor_description *buf; - ret = scmi_xfer_get_init(handle, SENSOR_DESCRIPTION_GET, - SCMI_PROTOCOL_SENSOR, sizeof(__le32), 0, &t); + ret = ph->xops->xfer_get_init(ph, SENSOR_DESCRIPTION_GET, + sizeof(__le32), 0, &t); if (ret) return ret; @@ -437,7 +438,8 @@ static int scmi_sensor_description_get(const struct scmi_handle *handle, /* Set the number of sensors to be skipped/already read */ put_unaligned_le32(desc_index, t->tx.buf); - ret = scmi_do_xfer(handle, t); + + ret = ph->xops->do_xfer(ph, t); if (ret) break; @@ -445,7 +447,7 @@ static int scmi_sensor_description_get(const struct scmi_handle *handle, num_remaining = le16_to_cpu(buf->num_remaining); if (desc_index + num_returned > si->num_sensors) { - dev_err(handle->dev, "No. of sensors can't exceed %d", + dev_err(ph->dev, "No. of sensors can't exceed %d", si->num_sensors); break; } @@ -500,8 +502,8 @@ static int scmi_sensor_description_get(const struct scmi_handle *handle, * Since the command is optional, on error carry * on without any update interval. */ - if (scmi_sensor_update_intervals(handle, s)) - dev_dbg(handle->dev, + if (scmi_sensor_update_intervals(ph, s)) + dev_dbg(ph->dev, "Update Intervals not available for sensor ID:%d\n", s->id); } @@ -535,7 +537,7 @@ static int scmi_sensor_description_get(const struct scmi_handle *handle, } } if (s->num_axis > 0) { - ret = scmi_sensor_axis_description(handle, s); + ret = scmi_sensor_axis_description(ph, s); if (ret) goto out; } @@ -545,7 +547,7 @@ static int scmi_sensor_description_get(const struct scmi_handle *handle, desc_index += num_returned; - scmi_reset_rx_to_maxsz(handle, t); + ph->xops->reset_rx_to_maxsz(ph, t); /* * check for both returned and remaining to avoid infinite * loop due to buggy firmware @@ -553,12 +555,12 @@ static int scmi_sensor_description_get(const struct scmi_handle *handle, } while (num_returned && num_remaining); out: - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } static inline int -scmi_sensor_request_notify(const struct scmi_handle *handle, u32 sensor_id, +scmi_sensor_request_notify(const struct scmi_protocol_handle *ph, u32 sensor_id, u8 message_id, bool enable) { int ret; @@ -566,8 +568,7 @@ scmi_sensor_request_notify(const struct scmi_handle *handle, u32 sensor_id, struct scmi_xfer *t; struct scmi_msg_sensor_request_notify *cfg; - ret = scmi_xfer_get_init(handle, message_id, - SCMI_PROTOCOL_SENSOR, sizeof(*cfg), 0, &t); + ret = ph->xops->xfer_get_init(ph, message_id, sizeof(*cfg), 0, &t); if (ret) return ret; @@ -575,40 +576,40 @@ scmi_sensor_request_notify(const struct scmi_handle *handle, u32 sensor_id, cfg->id = cpu_to_le32(sensor_id); cfg->event_control = cpu_to_le32(evt_cntl); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int scmi_sensor_trip_point_notify(const struct scmi_handle *handle, +static int scmi_sensor_trip_point_notify(const struct scmi_protocol_handle *ph, u32 sensor_id, bool enable) { - return scmi_sensor_request_notify(handle, sensor_id, + return scmi_sensor_request_notify(ph, sensor_id, SENSOR_TRIP_POINT_NOTIFY, enable); } static int -scmi_sensor_continuous_update_notify(const struct scmi_handle *handle, +scmi_sensor_continuous_update_notify(const struct scmi_protocol_handle *ph, u32 sensor_id, bool enable) { - return scmi_sensor_request_notify(handle, sensor_id, + return scmi_sensor_request_notify(ph, sensor_id, SENSOR_CONTINUOUS_UPDATE_NOTIFY, enable); } static int -scmi_sensor_trip_point_config(const struct scmi_handle *handle, u32 sensor_id, - u8 trip_id, u64 trip_value) +scmi_sensor_trip_point_config(const struct scmi_protocol_handle *ph, + u32 sensor_id, u8 trip_id, u64 trip_value) { int ret; u32 evt_cntl = SENSOR_TP_BOTH; struct scmi_xfer *t; struct scmi_msg_set_sensor_trip_point *trip; - ret = scmi_xfer_get_init(handle, SENSOR_TRIP_POINT_CONFIG, - SCMI_PROTOCOL_SENSOR, sizeof(*trip), 0, &t); + ret = ph->xops->xfer_get_init(ph, SENSOR_TRIP_POINT_CONFIG, + sizeof(*trip), 0, &t); if (ret) return ret; @@ -618,47 +619,46 @@ scmi_sensor_trip_point_config(const struct scmi_handle *handle, u32 sensor_id, trip->value_low = cpu_to_le32(trip_value & 0xffffffff); trip->value_high = cpu_to_le32(trip_value >> 32); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int scmi_sensor_config_get(const struct scmi_handle *handle, +static int scmi_sensor_config_get(const struct scmi_protocol_handle *ph, u32 sensor_id, u32 *sensor_config) { int ret; struct scmi_xfer *t; - ret = scmi_xfer_get_init(handle, SENSOR_CONFIG_GET, - SCMI_PROTOCOL_SENSOR, sizeof(__le32), - sizeof(__le32), &t); + ret = ph->xops->xfer_get_init(ph, SENSOR_CONFIG_GET, + sizeof(__le32), sizeof(__le32), &t); if (ret) return ret; put_unaligned_le32(cpu_to_le32(sensor_id), t->tx.buf); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) { - struct sensors_info *si = handle->sensor_priv; + struct sensors_info *si = ph->get_priv(ph); struct scmi_sensor_info *s = si->sensors + sensor_id; *sensor_config = get_unaligned_le64(t->rx.buf); s->sensor_config = *sensor_config; } - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int scmi_sensor_config_set(const struct scmi_handle *handle, +static int scmi_sensor_config_set(const struct scmi_protocol_handle *ph, u32 sensor_id, u32 sensor_config) { int ret; struct scmi_xfer *t; struct scmi_msg_sensor_config_set *msg; - ret = scmi_xfer_get_init(handle, SENSOR_CONFIG_SET, - SCMI_PROTOCOL_SENSOR, sizeof(*msg), 0, &t); + ret = ph->xops->xfer_get_init(ph, SENSOR_CONFIG_SET, + sizeof(*msg), 0, &t); if (ret) return ret; @@ -666,21 +666,21 @@ static int scmi_sensor_config_set(const struct scmi_handle *handle, msg->id = cpu_to_le32(sensor_id); msg->sensor_config = cpu_to_le32(sensor_config); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) { - struct sensors_info *si = handle->sensor_priv; + struct sensors_info *si = ph->get_priv(ph); struct scmi_sensor_info *s = si->sensors + sensor_id; s->sensor_config = sensor_config; } - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } /** * scmi_sensor_reading_get - Read scalar sensor value - * @handle: Platform handle + * @ph: Protocol handle * @sensor_id: Sensor ID * @value: The 64bit value sensor reading * @@ -693,17 +693,17 @@ static int scmi_sensor_config_set(const struct scmi_handle *handle, * * Return: 0 on Success */ -static int scmi_sensor_reading_get(const struct scmi_handle *handle, +static int scmi_sensor_reading_get(const struct scmi_protocol_handle *ph, u32 sensor_id, u64 *value) { int ret; struct scmi_xfer *t; struct scmi_msg_sensor_reading_get *sensor; - struct sensors_info *si = handle->sensor_priv; + struct sensors_info *si = ph->get_priv(ph); struct scmi_sensor_info *s = si->sensors + sensor_id; - ret = scmi_xfer_get_init(handle, SENSOR_READING_GET, - SCMI_PROTOCOL_SENSOR, sizeof(*sensor), 0, &t); + ret = ph->xops->xfer_get_init(ph, SENSOR_READING_GET, + sizeof(*sensor), 0, &t); if (ret) return ret; @@ -711,7 +711,7 @@ static int scmi_sensor_reading_get(const struct scmi_handle *handle, sensor->id = cpu_to_le32(sensor_id); if (s->async) { sensor->flags = cpu_to_le32(SENSOR_READ_ASYNC); - ret = scmi_do_xfer_with_response(handle, t); + ret = ph->xops->do_xfer_with_response(ph, t); if (!ret) { struct scmi_resp_sensor_reading_complete *resp; @@ -723,12 +723,12 @@ static int scmi_sensor_reading_get(const struct scmi_handle *handle, } } else { sensor->flags = cpu_to_le32(0); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) *value = get_unaligned_le64(t->rx.buf); } - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } @@ -742,7 +742,7 @@ scmi_parse_sensor_readings(struct scmi_sensor_reading *out, /** * scmi_sensor_reading_get_timestamped - Read multiple-axis timestamped values - * @handle: Platform handle + * @ph: Protocol handle * @sensor_id: Sensor ID * @count: The length of the provided @readings array * @readings: An array of elements each representing a timestamped per-axis @@ -755,22 +755,22 @@ scmi_parse_sensor_readings(struct scmi_sensor_reading *out, * Return: 0 on Success */ static int -scmi_sensor_reading_get_timestamped(const struct scmi_handle *handle, +scmi_sensor_reading_get_timestamped(const struct scmi_protocol_handle *ph, u32 sensor_id, u8 count, struct scmi_sensor_reading *readings) { int ret; struct scmi_xfer *t; struct scmi_msg_sensor_reading_get *sensor; - struct sensors_info *si = handle->sensor_priv; + struct sensors_info *si = ph->get_priv(ph); struct scmi_sensor_info *s = si->sensors + sensor_id; if (!count || !readings || (!s->num_axis && count > 1) || (s->num_axis && count > s->num_axis)) return -EINVAL; - ret = scmi_xfer_get_init(handle, SENSOR_READING_GET, - SCMI_PROTOCOL_SENSOR, sizeof(*sensor), 0, &t); + ret = ph->xops->xfer_get_init(ph, SENSOR_READING_GET, + sizeof(*sensor), 0, &t); if (ret) return ret; @@ -778,7 +778,7 @@ scmi_sensor_reading_get_timestamped(const struct scmi_handle *handle, sensor->id = cpu_to_le32(sensor_id); if (s->async) { sensor->flags = cpu_to_le32(SENSOR_READ_ASYNC); - ret = scmi_do_xfer_with_response(handle, t); + ret = ph->xops->do_xfer_with_response(ph, t); if (!ret) { int i; struct scmi_resp_sensor_reading_complete_v3 *resp; @@ -794,7 +794,7 @@ scmi_sensor_reading_get_timestamped(const struct scmi_handle *handle, } } else { sensor->flags = cpu_to_le32(0); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) { int i; struct scmi_sensor_reading_resp *resp_readings; @@ -806,26 +806,26 @@ scmi_sensor_reading_get_timestamped(const struct scmi_handle *handle, } } - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } static const struct scmi_sensor_info * -scmi_sensor_info_get(const struct scmi_handle *handle, u32 sensor_id) +scmi_sensor_info_get(const struct scmi_protocol_handle *ph, u32 sensor_id) { - struct sensors_info *si = handle->sensor_priv; + struct sensors_info *si = ph->get_priv(ph); return si->sensors + sensor_id; } -static int scmi_sensor_count_get(const struct scmi_handle *handle) +static int scmi_sensor_count_get(const struct scmi_protocol_handle *ph) { - struct sensors_info *si = handle->sensor_priv; + struct sensors_info *si = ph->get_priv(ph); return si->num_sensors; } -static const struct scmi_sensor_ops sensor_ops = { +static const struct scmi_sensor_proto_ops sensor_proto_ops = { .count_get = scmi_sensor_count_get, .info_get = scmi_sensor_info_get, .trip_point_config = scmi_sensor_trip_point_config, @@ -835,18 +835,17 @@ static const struct scmi_sensor_ops sensor_ops = { .config_set = scmi_sensor_config_set, }; -static int scmi_sensor_set_notify_enabled(const struct scmi_handle *handle, +static int scmi_sensor_set_notify_enabled(const struct scmi_protocol_handle *ph, u8 evt_id, u32 src_id, bool enable) { int ret; switch (evt_id) { case SCMI_EVENT_SENSOR_TRIP_POINT_EVENT: - ret = scmi_sensor_trip_point_notify(handle, src_id, enable); + ret = scmi_sensor_trip_point_notify(ph, src_id, enable); break; case SCMI_EVENT_SENSOR_UPDATE: - ret = scmi_sensor_continuous_update_notify(handle, src_id, - enable); + ret = scmi_sensor_continuous_update_notify(ph, src_id, enable); break; default: ret = -EINVAL; @@ -860,10 +859,11 @@ static int scmi_sensor_set_notify_enabled(const struct scmi_handle *handle, return ret; } -static void *scmi_sensor_fill_custom_report(const struct scmi_handle *handle, - u8 evt_id, ktime_t timestamp, - const void *payld, size_t payld_sz, - void *report, u32 *src_id) +static void * +scmi_sensor_fill_custom_report(const struct scmi_protocol_handle *ph, + u8 evt_id, ktime_t timestamp, + const void *payld, size_t payld_sz, + void *report, u32 *src_id) { void *rep = NULL; @@ -890,7 +890,7 @@ static void *scmi_sensor_fill_custom_report(const struct scmi_handle *handle, struct scmi_sensor_info *s; const struct scmi_sensor_update_notify_payld *p = payld; struct scmi_sensor_update_report *r = report; - struct sensors_info *sinfo = handle->sensor_priv; + struct sensors_info *sinfo = ph->get_priv(ph); /* payld_sz is variable for this event */ r->sensor_id = le32_to_cpu(p->sensor_id); @@ -920,6 +920,13 @@ static void *scmi_sensor_fill_custom_report(const struct scmi_handle *handle, return rep; } +static int scmi_sensor_get_num_sources(const struct scmi_protocol_handle *ph) +{ + struct sensors_info *si = ph->get_priv(ph); + + return si->num_sensors; +} + static const struct scmi_event sensor_events[] = { { .id = SCMI_EVENT_SENSOR_TRIP_POINT_EVENT, @@ -939,48 +946,55 @@ static const struct scmi_event sensor_events[] = { }; static const struct scmi_event_ops sensor_event_ops = { + .get_num_sources = scmi_sensor_get_num_sources, .set_notify_enabled = scmi_sensor_set_notify_enabled, .fill_custom_report = scmi_sensor_fill_custom_report, }; -static int scmi_sensors_protocol_init(struct scmi_handle *handle) +static const struct scmi_protocol_events sensor_protocol_events = { + .queue_sz = SCMI_PROTO_QUEUE_SZ, + .ops = &sensor_event_ops, + .evts = sensor_events, + .num_events = ARRAY_SIZE(sensor_events), +}; + +static int scmi_sensors_protocol_init(const struct scmi_protocol_handle *ph) { u32 version; int ret; struct sensors_info *sinfo; - scmi_version_get(handle, SCMI_PROTOCOL_SENSOR, &version); + ph->xops->version_get(ph, &version); - dev_dbg(handle->dev, "Sensor Version %d.%d\n", + dev_dbg(ph->dev, "Sensor Version %d.%d\n", PROTOCOL_REV_MAJOR(version), PROTOCOL_REV_MINOR(version)); - sinfo = devm_kzalloc(handle->dev, sizeof(*sinfo), GFP_KERNEL); + sinfo = devm_kzalloc(ph->dev, sizeof(*sinfo), GFP_KERNEL); if (!sinfo) return -ENOMEM; sinfo->version = version; - ret = scmi_sensor_attributes_get(handle, sinfo); + ret = scmi_sensor_attributes_get(ph, sinfo); if (ret) return ret; - sinfo->sensors = devm_kcalloc(handle->dev, sinfo->num_sensors, + sinfo->sensors = devm_kcalloc(ph->dev, sinfo->num_sensors, sizeof(*sinfo->sensors), GFP_KERNEL); if (!sinfo->sensors) return -ENOMEM; - ret = scmi_sensor_description_get(handle, sinfo); + ret = scmi_sensor_description_get(ph, sinfo); if (ret) return ret; - scmi_register_protocol_events(handle, - SCMI_PROTOCOL_SENSOR, SCMI_PROTO_QUEUE_SZ, - &sensor_event_ops, sensor_events, - ARRAY_SIZE(sensor_events), - sinfo->num_sensors); - - handle->sensor_priv = sinfo; - handle->sensor_ops = &sensor_ops; - - return 0; + return ph->set_priv(ph, sinfo); } -DEFINE_SCMI_PROTOCOL_REGISTER_UNREGISTER(SCMI_PROTOCOL_SENSOR, sensors) +static const struct scmi_protocol scmi_sensors = { + .id = SCMI_PROTOCOL_SENSOR, + .owner = THIS_MODULE, + .instance_init = &scmi_sensors_protocol_init, + .ops = &sensor_proto_ops, + .events = &sensor_protocol_events, +}; + +DEFINE_SCMI_PROTOCOL_REGISTER_UNREGISTER(sensors, scmi_sensors) diff --git a/drivers/firmware/arm_scmi/system.c b/drivers/firmware/arm_scmi/system.c index 283e12d5f24b..e5175ef73b40 100644 --- a/drivers/firmware/arm_scmi/system.c +++ b/drivers/firmware/arm_scmi/system.c @@ -2,11 +2,12 @@ /* * System Control and Management Interface (SCMI) System Power Protocol * - * Copyright (C) 2020 ARM Ltd. + * Copyright (C) 2020-2021 ARM Ltd. */ #define pr_fmt(fmt) "SCMI Notifications SYSTEM - " fmt +#include <linux/module.h> #include <linux/scmi_protocol.h> #include "common.h" @@ -32,43 +33,44 @@ struct scmi_system_info { u32 version; }; -static int scmi_system_request_notify(const struct scmi_handle *handle, +static int scmi_system_request_notify(const struct scmi_protocol_handle *ph, bool enable) { int ret; struct scmi_xfer *t; struct scmi_system_power_state_notify *notify; - ret = scmi_xfer_get_init(handle, SYSTEM_POWER_STATE_NOTIFY, - SCMI_PROTOCOL_SYSTEM, sizeof(*notify), 0, &t); + ret = ph->xops->xfer_get_init(ph, SYSTEM_POWER_STATE_NOTIFY, + sizeof(*notify), 0, &t); if (ret) return ret; notify = t->tx.buf; notify->notify_enable = enable ? cpu_to_le32(BIT(0)) : 0; - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int scmi_system_set_notify_enabled(const struct scmi_handle *handle, +static int scmi_system_set_notify_enabled(const struct scmi_protocol_handle *ph, u8 evt_id, u32 src_id, bool enable) { int ret; - ret = scmi_system_request_notify(handle, enable); + ret = scmi_system_request_notify(ph, enable); if (ret) pr_debug("FAIL_ENABLE - evt[%X] - ret:%d\n", evt_id, ret); return ret; } -static void *scmi_system_fill_custom_report(const struct scmi_handle *handle, - u8 evt_id, ktime_t timestamp, - const void *payld, size_t payld_sz, - void *report, u32 *src_id) +static void * +scmi_system_fill_custom_report(const struct scmi_protocol_handle *ph, + u8 evt_id, ktime_t timestamp, + const void *payld, size_t payld_sz, + void *report, u32 *src_id) { const struct scmi_system_power_state_notifier_payld *p = payld; struct scmi_system_power_state_notifier_report *r = report; @@ -101,31 +103,38 @@ static const struct scmi_event_ops system_event_ops = { .fill_custom_report = scmi_system_fill_custom_report, }; -static int scmi_system_protocol_init(struct scmi_handle *handle) +static const struct scmi_protocol_events system_protocol_events = { + .queue_sz = SCMI_PROTO_QUEUE_SZ, + .ops = &system_event_ops, + .evts = system_events, + .num_events = ARRAY_SIZE(system_events), + .num_sources = SCMI_SYSTEM_NUM_SOURCES, +}; + +static int scmi_system_protocol_init(const struct scmi_protocol_handle *ph) { u32 version; struct scmi_system_info *pinfo; - scmi_version_get(handle, SCMI_PROTOCOL_SYSTEM, &version); + ph->xops->version_get(ph, &version); - dev_dbg(handle->dev, "System Power Version %d.%d\n", + dev_dbg(ph->dev, "System Power Version %d.%d\n", PROTOCOL_REV_MAJOR(version), PROTOCOL_REV_MINOR(version)); - pinfo = devm_kzalloc(handle->dev, sizeof(*pinfo), GFP_KERNEL); + pinfo = devm_kzalloc(ph->dev, sizeof(*pinfo), GFP_KERNEL); if (!pinfo) return -ENOMEM; - scmi_register_protocol_events(handle, - SCMI_PROTOCOL_SYSTEM, SCMI_PROTO_QUEUE_SZ, - &system_event_ops, - system_events, - ARRAY_SIZE(system_events), - SCMI_SYSTEM_NUM_SOURCES); - pinfo->version = version; - handle->system_priv = pinfo; - - return 0; + return ph->set_priv(ph, pinfo); } -DEFINE_SCMI_PROTOCOL_REGISTER_UNREGISTER(SCMI_PROTOCOL_SYSTEM, system) +static const struct scmi_protocol scmi_system = { + .id = SCMI_PROTOCOL_SYSTEM, + .owner = THIS_MODULE, + .instance_init = &scmi_system_protocol_init, + .ops = NULL, + .events = &system_protocol_events, +}; + +DEFINE_SCMI_PROTOCOL_REGISTER_UNREGISTER(system, scmi_system) diff --git a/drivers/firmware/arm_scmi/voltage.c b/drivers/firmware/arm_scmi/voltage.c index e794e4349ae6..a5048956a0be 100644 --- a/drivers/firmware/arm_scmi/voltage.c +++ b/drivers/firmware/arm_scmi/voltage.c @@ -2,9 +2,10 @@ /* * System Control and Management Interface (SCMI) Voltage Protocol * - * Copyright (C) 2020 ARM Ltd. + * Copyright (C) 2020-2021 ARM Ltd. */ +#include <linux/module.h> #include <linux/scmi_protocol.h> #include "common.h" @@ -59,23 +60,23 @@ struct voltage_info { struct scmi_voltage_info *domains; }; -static int scmi_protocol_attributes_get(const struct scmi_handle *handle, +static int scmi_protocol_attributes_get(const struct scmi_protocol_handle *ph, struct voltage_info *vinfo) { int ret; struct scmi_xfer *t; - ret = scmi_xfer_get_init(handle, PROTOCOL_ATTRIBUTES, - SCMI_PROTOCOL_VOLTAGE, 0, sizeof(__le32), &t); + ret = ph->xops->xfer_get_init(ph, PROTOCOL_ATTRIBUTES, 0, + sizeof(__le32), &t); if (ret) return ret; - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) vinfo->num_domains = NUM_VOLTAGE_DOMAINS(get_unaligned_le32(t->rx.buf)); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } @@ -109,24 +110,23 @@ static int scmi_init_voltage_levels(struct device *dev, return 0; } -static int scmi_voltage_descriptors_get(const struct scmi_handle *handle, +static int scmi_voltage_descriptors_get(const struct scmi_protocol_handle *ph, struct voltage_info *vinfo) { int ret, dom; struct scmi_xfer *td, *tl; - struct device *dev = handle->dev; + struct device *dev = ph->dev; struct scmi_msg_resp_domain_attributes *resp_dom; struct scmi_msg_resp_describe_levels *resp_levels; - ret = scmi_xfer_get_init(handle, VOLTAGE_DOMAIN_ATTRIBUTES, - SCMI_PROTOCOL_VOLTAGE, sizeof(__le32), - sizeof(*resp_dom), &td); + ret = ph->xops->xfer_get_init(ph, VOLTAGE_DOMAIN_ATTRIBUTES, + sizeof(__le32), sizeof(*resp_dom), &td); if (ret) return ret; resp_dom = td->rx.buf; - ret = scmi_xfer_get_init(handle, VOLTAGE_DESCRIBE_LEVELS, - SCMI_PROTOCOL_VOLTAGE, sizeof(__le64), 0, &tl); + ret = ph->xops->xfer_get_init(ph, VOLTAGE_DESCRIBE_LEVELS, + sizeof(__le64), 0, &tl); if (ret) goto outd; resp_levels = tl->rx.buf; @@ -139,7 +139,7 @@ static int scmi_voltage_descriptors_get(const struct scmi_handle *handle, /* Retrieve domain attributes at first ... */ put_unaligned_le32(dom, td->tx.buf); - ret = scmi_do_xfer(handle, td); + ret = ph->xops->do_xfer(ph, td); /* Skip domain on comms error */ if (ret) continue; @@ -157,7 +157,7 @@ static int scmi_voltage_descriptors_get(const struct scmi_handle *handle, cmd->domain_id = cpu_to_le32(v->id); cmd->level_index = desc_index; - ret = scmi_do_xfer(handle, tl); + ret = ph->xops->do_xfer(ph, tl); if (ret) break; @@ -176,7 +176,7 @@ static int scmi_voltage_descriptors_get(const struct scmi_handle *handle, } if (desc_index + num_returned > v->num_levels) { - dev_err(handle->dev, + dev_err(ph->dev, "No. of voltage levels can't exceed %d\n", v->num_levels); ret = -EINVAL; @@ -195,7 +195,7 @@ static int scmi_voltage_descriptors_get(const struct scmi_handle *handle, desc_index += num_returned; - scmi_reset_rx_to_maxsz(handle, tl); + ph->xops->reset_rx_to_maxsz(ph, tl); /* check both to avoid infinite loop due to buggy fw */ } while (num_returned && num_remaining); @@ -204,55 +204,52 @@ static int scmi_voltage_descriptors_get(const struct scmi_handle *handle, devm_kfree(dev, v->levels_uv); } - scmi_reset_rx_to_maxsz(handle, td); + ph->xops->reset_rx_to_maxsz(ph, td); } - scmi_xfer_put(handle, tl); + ph->xops->xfer_put(ph, tl); outd: - scmi_xfer_put(handle, td); + ph->xops->xfer_put(ph, td); return ret; } -static int __scmi_voltage_get_u32(const struct scmi_handle *handle, +static int __scmi_voltage_get_u32(const struct scmi_protocol_handle *ph, u8 cmd_id, u32 domain_id, u32 *value) { int ret; struct scmi_xfer *t; - struct voltage_info *vinfo = handle->voltage_priv; + struct voltage_info *vinfo = ph->get_priv(ph); if (domain_id >= vinfo->num_domains) return -EINVAL; - ret = scmi_xfer_get_init(handle, cmd_id, - SCMI_PROTOCOL_VOLTAGE, - sizeof(__le32), 0, &t); + ret = ph->xops->xfer_get_init(ph, cmd_id, sizeof(__le32), 0, &t); if (ret) return ret; put_unaligned_le32(domain_id, t->tx.buf); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) *value = get_unaligned_le32(t->rx.buf); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int scmi_voltage_config_set(const struct scmi_handle *handle, +static int scmi_voltage_config_set(const struct scmi_protocol_handle *ph, u32 domain_id, u32 config) { int ret; struct scmi_xfer *t; - struct voltage_info *vinfo = handle->voltage_priv; + struct voltage_info *vinfo = ph->get_priv(ph); struct scmi_msg_cmd_config_set *cmd; if (domain_id >= vinfo->num_domains) return -EINVAL; - ret = scmi_xfer_get_init(handle, VOLTAGE_CONFIG_SET, - SCMI_PROTOCOL_VOLTAGE, - sizeof(*cmd), 0, &t); + ret = ph->xops->xfer_get_init(ph, VOLTAGE_CONFIG_SET, + sizeof(*cmd), 0, &t); if (ret) return ret; @@ -260,33 +257,32 @@ static int scmi_voltage_config_set(const struct scmi_handle *handle, cmd->domain_id = cpu_to_le32(domain_id); cmd->config = cpu_to_le32(config & GENMASK(3, 0)); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int scmi_voltage_config_get(const struct scmi_handle *handle, +static int scmi_voltage_config_get(const struct scmi_protocol_handle *ph, u32 domain_id, u32 *config) { - return __scmi_voltage_get_u32(handle, VOLTAGE_CONFIG_GET, + return __scmi_voltage_get_u32(ph, VOLTAGE_CONFIG_GET, domain_id, config); } -static int scmi_voltage_level_set(const struct scmi_handle *handle, +static int scmi_voltage_level_set(const struct scmi_protocol_handle *ph, u32 domain_id, u32 flags, s32 volt_uV) { int ret; struct scmi_xfer *t; - struct voltage_info *vinfo = handle->voltage_priv; + struct voltage_info *vinfo = ph->get_priv(ph); struct scmi_msg_cmd_level_set *cmd; if (domain_id >= vinfo->num_domains) return -EINVAL; - ret = scmi_xfer_get_init(handle, VOLTAGE_LEVEL_SET, - SCMI_PROTOCOL_VOLTAGE, - sizeof(*cmd), 0, &t); + ret = ph->xops->xfer_get_init(ph, VOLTAGE_LEVEL_SET, + sizeof(*cmd), 0, &t); if (ret) return ret; @@ -295,23 +291,23 @@ static int scmi_voltage_level_set(const struct scmi_handle *handle, cmd->flags = cpu_to_le32(flags); cmd->voltage_level = cpu_to_le32(volt_uV); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int scmi_voltage_level_get(const struct scmi_handle *handle, +static int scmi_voltage_level_get(const struct scmi_protocol_handle *ph, u32 domain_id, s32 *volt_uV) { - return __scmi_voltage_get_u32(handle, VOLTAGE_LEVEL_GET, + return __scmi_voltage_get_u32(ph, VOLTAGE_LEVEL_GET, domain_id, (u32 *)volt_uV); } static const struct scmi_voltage_info * __must_check -scmi_voltage_info_get(const struct scmi_handle *handle, u32 domain_id) +scmi_voltage_info_get(const struct scmi_protocol_handle *ph, u32 domain_id) { - struct voltage_info *vinfo = handle->voltage_priv; + struct voltage_info *vinfo = ph->get_priv(ph); if (domain_id >= vinfo->num_domains || !vinfo->domains[domain_id].num_levels) @@ -320,14 +316,14 @@ scmi_voltage_info_get(const struct scmi_handle *handle, u32 domain_id) return vinfo->domains + domain_id; } -static int scmi_voltage_domains_num_get(const struct scmi_handle *handle) +static int scmi_voltage_domains_num_get(const struct scmi_protocol_handle *ph) { - struct voltage_info *vinfo = handle->voltage_priv; + struct voltage_info *vinfo = ph->get_priv(ph); return vinfo->num_domains; } -static struct scmi_voltage_ops voltage_ops = { +static struct scmi_voltage_proto_ops voltage_proto_ops = { .num_domains_get = scmi_voltage_domains_num_get, .info_get = scmi_voltage_info_get, .config_set = scmi_voltage_config_set, @@ -336,45 +332,49 @@ static struct scmi_voltage_ops voltage_ops = { .level_get = scmi_voltage_level_get, }; -static int scmi_voltage_protocol_init(struct scmi_handle *handle) +static int scmi_voltage_protocol_init(const struct scmi_protocol_handle *ph) { int ret; u32 version; struct voltage_info *vinfo; - ret = scmi_version_get(handle, SCMI_PROTOCOL_VOLTAGE, &version); + ret = ph->xops->version_get(ph, &version); if (ret) return ret; - dev_dbg(handle->dev, "Voltage Version %d.%d\n", + dev_dbg(ph->dev, "Voltage Version %d.%d\n", PROTOCOL_REV_MAJOR(version), PROTOCOL_REV_MINOR(version)); - vinfo = devm_kzalloc(handle->dev, sizeof(*vinfo), GFP_KERNEL); + vinfo = devm_kzalloc(ph->dev, sizeof(*vinfo), GFP_KERNEL); if (!vinfo) return -ENOMEM; vinfo->version = version; - ret = scmi_protocol_attributes_get(handle, vinfo); + ret = scmi_protocol_attributes_get(ph, vinfo); if (ret) return ret; if (vinfo->num_domains) { - vinfo->domains = devm_kcalloc(handle->dev, vinfo->num_domains, + vinfo->domains = devm_kcalloc(ph->dev, vinfo->num_domains, sizeof(*vinfo->domains), GFP_KERNEL); if (!vinfo->domains) return -ENOMEM; - ret = scmi_voltage_descriptors_get(handle, vinfo); + ret = scmi_voltage_descriptors_get(ph, vinfo); if (ret) return ret; } else { - dev_warn(handle->dev, "No Voltage domains found.\n"); + dev_warn(ph->dev, "No Voltage domains found.\n"); } - handle->voltage_ops = &voltage_ops; - handle->voltage_priv = vinfo; - - return 0; + return ph->set_priv(ph, vinfo); } -DEFINE_SCMI_PROTOCOL_REGISTER_UNREGISTER(SCMI_PROTOCOL_VOLTAGE, voltage) +static const struct scmi_protocol scmi_voltage = { + .id = SCMI_PROTOCOL_VOLTAGE, + .owner = THIS_MODULE, + .instance_init = &scmi_voltage_protocol_init, + .ops = &voltage_proto_ops, +}; + +DEFINE_SCMI_PROTOCOL_REGISTER_UNREGISTER(voltage, scmi_voltage) diff --git a/drivers/firmware/imx/scu-pd.c b/drivers/firmware/imx/scu-pd.c index 08533ee67626..ff6569c4a53b 100644 --- a/drivers/firmware/imx/scu-pd.c +++ b/drivers/firmware/imx/scu-pd.c @@ -29,6 +29,10 @@ * The framework needs some proper extension to support multi power * domain cases. * + * Update: Genpd assigns the ->of_node for the virtual device before it + * invokes ->attach_dev() callback, hence parsing for device resources via + * DT should work fine. + * * 2. It also breaks most of current drivers as the driver probe sequence * behavior changed if removing ->power_on|off() callback and use * ->start() and ->stop() instead. genpd_dev_pm_attach will only power @@ -39,8 +43,11 @@ * domain enabled will trigger a HW access error. That means we need fix * most drivers probe sequence with proper runtime pm. * - * In summary, we need fix above two issue before being able to switch to - * the "single global power domain" way. + * Update: Runtime PM support isn't necessary. Instead, this can easily be + * fixed in drivers by adding a call to dev_pm_domain_start() during probe. + * + * In summary, the second part needs to be addressed via minor updates to the + * relevant drivers, before the "single global power domain" model can be used. * */ @@ -86,6 +93,8 @@ struct imx_sc_pd_soc { u8 num_ranges; }; +static int imx_con_rsrc; + static const struct imx_sc_pd_range imx8qxp_scu_pd_ranges[] = { /* LSIO SS */ { "pwm", IMX_SC_R_PWM_0, 8, true, 0 }, @@ -134,7 +143,7 @@ static const struct imx_sc_pd_range imx8qxp_scu_pd_ranges[] = { { "can", IMX_SC_R_CAN_0, 3, true, 0 }, { "ftm", IMX_SC_R_FTM_0, 2, true, 0 }, { "lpi2c", IMX_SC_R_I2C_0, 4, true, 0 }, - { "adc", IMX_SC_R_ADC_0, 1, true, 0 }, + { "adc", IMX_SC_R_ADC_0, 2, true, 0 }, { "lcd", IMX_SC_R_LCD_0, 1, true, 0 }, { "lcd0-pwm", IMX_SC_R_LCD_0_PWM_0, 1, true, 0 }, { "lpuart", IMX_SC_R_UART_0, 4, true, 0 }, @@ -207,6 +216,23 @@ to_imx_sc_pd(struct generic_pm_domain *genpd) return container_of(genpd, struct imx_sc_pm_domain, pd); } +static void imx_sc_pd_get_console_rsrc(void) +{ + struct of_phandle_args specs; + int ret; + + if (!of_stdout) + return; + + ret = of_parse_phandle_with_args(of_stdout, "power-domains", + "#power-domain-cells", + 0, &specs); + if (ret) + return; + + imx_con_rsrc = specs.args[0]; +} + static int imx_sc_pd_power(struct generic_pm_domain *domain, bool power_on) { struct imx_sc_msg_req_set_resource_power_mode msg; @@ -267,6 +293,7 @@ imx_scu_add_pm_domain(struct device *dev, int idx, const struct imx_sc_pd_range *pd_ranges) { struct imx_sc_pm_domain *sc_pd; + bool is_off = true; int ret; if (!imx_sc_rm_is_resource_owned(pm_ipc_handle, pd_ranges->rsrc + idx)) @@ -288,6 +315,10 @@ imx_scu_add_pm_domain(struct device *dev, int idx, "%s", pd_ranges->name); sc_pd->pd.name = sc_pd->name; + if (imx_con_rsrc == sc_pd->rsrc) { + sc_pd->pd.flags = GENPD_FLAG_RPM_ALWAYS_ON; + is_off = false; + } if (sc_pd->rsrc >= IMX_SC_R_LAST) { dev_warn(dev, "invalid pd %s rsrc id %d found", @@ -297,7 +328,7 @@ imx_scu_add_pm_domain(struct device *dev, int idx, return NULL; } - ret = pm_genpd_init(&sc_pd->pd, NULL, true); + ret = pm_genpd_init(&sc_pd->pd, NULL, is_off); if (ret) { dev_warn(dev, "failed to init pd %s rsrc id %d", sc_pd->name, sc_pd->rsrc); @@ -363,6 +394,8 @@ static int imx_sc_pd_probe(struct platform_device *pdev) if (!pd_soc) return -ENODEV; + imx_sc_pd_get_console_rsrc(); + return imx_scu_init_pm_domains(&pdev->dev, pd_soc); } diff --git a/drivers/firmware/qcom_scm-legacy.c b/drivers/firmware/qcom_scm-legacy.c index eba6b60bfb61..1829ba220576 100644 --- a/drivers/firmware/qcom_scm-legacy.c +++ b/drivers/firmware/qcom_scm-legacy.c @@ -118,7 +118,7 @@ static void __scm_legacy_do(const struct arm_smccc_args *smc, } /** - * qcom_scm_call() - Sends a command to the SCM and waits for the command to + * scm_legacy_call() - Sends a command to the SCM and waits for the command to * finish processing. * * A note on cache maintenance: @@ -209,7 +209,7 @@ out: (n & 0xf)) /** - * qcom_scm_call_atomic() - Send an atomic SCM command with up to 5 arguments + * scm_legacy_call_atomic() - Send an atomic SCM command with up to 5 arguments * and 3 return values * @desc: SCM call descriptor containing arguments * @res: SCM call return values diff --git a/drivers/firmware/qcom_scm-smc.c b/drivers/firmware/qcom_scm-smc.c index 497c13ba98d6..d111833364ba 100644 --- a/drivers/firmware/qcom_scm-smc.c +++ b/drivers/firmware/qcom_scm-smc.c @@ -77,8 +77,10 @@ static void __scm_smc_do(const struct arm_smccc_args *smc, } while (res->a0 == QCOM_SCM_V2_EBUSY); } -int scm_smc_call(struct device *dev, const struct qcom_scm_desc *desc, - struct qcom_scm_res *res, bool atomic) + +int __scm_smc_call(struct device *dev, const struct qcom_scm_desc *desc, + enum qcom_scm_convention qcom_convention, + struct qcom_scm_res *res, bool atomic) { int arglen = desc->arginfo & 0xf; int i; @@ -87,9 +89,8 @@ int scm_smc_call(struct device *dev, const struct qcom_scm_desc *desc, size_t alloc_len; gfp_t flag = atomic ? GFP_ATOMIC : GFP_KERNEL; u32 smccc_call_type = atomic ? ARM_SMCCC_FAST_CALL : ARM_SMCCC_STD_CALL; - u32 qcom_smccc_convention = - (qcom_scm_convention == SMC_CONVENTION_ARM_32) ? - ARM_SMCCC_SMC_32 : ARM_SMCCC_SMC_64; + u32 qcom_smccc_convention = (qcom_convention == SMC_CONVENTION_ARM_32) ? + ARM_SMCCC_SMC_32 : ARM_SMCCC_SMC_64; struct arm_smccc_res smc_res; struct arm_smccc_args smc = {0}; @@ -148,4 +149,5 @@ int scm_smc_call(struct device *dev, const struct qcom_scm_desc *desc, } return (long)smc_res.a0 ? qcom_scm_remap_error(smc_res.a0) : 0; + } diff --git a/drivers/firmware/qcom_scm.c b/drivers/firmware/qcom_scm.c index f57779fc7ee9..ee9cb545e73b 100644 --- a/drivers/firmware/qcom_scm.c +++ b/drivers/firmware/qcom_scm.c @@ -113,14 +113,10 @@ static void qcom_scm_clk_disable(void) clk_disable_unprepare(__scm->bus_clk); } -static int __qcom_scm_is_call_available(struct device *dev, u32 svc_id, - u32 cmd_id); +enum qcom_scm_convention qcom_scm_convention = SMC_CONVENTION_UNKNOWN; +static DEFINE_SPINLOCK(scm_query_lock); -enum qcom_scm_convention qcom_scm_convention; -static bool has_queried __read_mostly; -static DEFINE_SPINLOCK(query_lock); - -static void __query_convention(void) +static enum qcom_scm_convention __get_convention(void) { unsigned long flags; struct qcom_scm_desc desc = { @@ -133,36 +129,50 @@ static void __query_convention(void) .owner = ARM_SMCCC_OWNER_SIP, }; struct qcom_scm_res res; + enum qcom_scm_convention probed_convention; int ret; + bool forced = false; - spin_lock_irqsave(&query_lock, flags); - if (has_queried) - goto out; + if (likely(qcom_scm_convention != SMC_CONVENTION_UNKNOWN)) + return qcom_scm_convention; - qcom_scm_convention = SMC_CONVENTION_ARM_64; - // Device isn't required as there is only one argument - no device - // needed to dma_map_single to secure world - ret = scm_smc_call(NULL, &desc, &res, true); + /* + * Device isn't required as there is only one argument - no device + * needed to dma_map_single to secure world + */ + probed_convention = SMC_CONVENTION_ARM_64; + ret = __scm_smc_call(NULL, &desc, probed_convention, &res, true); if (!ret && res.result[0] == 1) - goto out; + goto found; + + /* + * Some SC7180 firmwares didn't implement the + * QCOM_SCM_INFO_IS_CALL_AVAIL call, so we fallback to forcing ARM_64 + * calling conventions on these firmwares. Luckily we don't make any + * early calls into the firmware on these SoCs so the device pointer + * will be valid here to check if the compatible matches. + */ + if (of_device_is_compatible(__scm ? __scm->dev->of_node : NULL, "qcom,scm-sc7180")) { + forced = true; + goto found; + } - qcom_scm_convention = SMC_CONVENTION_ARM_32; - ret = scm_smc_call(NULL, &desc, &res, true); + probed_convention = SMC_CONVENTION_ARM_32; + ret = __scm_smc_call(NULL, &desc, probed_convention, &res, true); if (!ret && res.result[0] == 1) - goto out; - - qcom_scm_convention = SMC_CONVENTION_LEGACY; -out: - has_queried = true; - spin_unlock_irqrestore(&query_lock, flags); - pr_info("qcom_scm: convention: %s\n", - qcom_scm_convention_names[qcom_scm_convention]); -} + goto found; + + probed_convention = SMC_CONVENTION_LEGACY; +found: + spin_lock_irqsave(&scm_query_lock, flags); + if (probed_convention != qcom_scm_convention) { + qcom_scm_convention = probed_convention; + pr_info("qcom_scm: convention: %s%s\n", + qcom_scm_convention_names[qcom_scm_convention], + forced ? " (forced)" : ""); + } + spin_unlock_irqrestore(&scm_query_lock, flags); -static inline enum qcom_scm_convention __get_convention(void) -{ - if (unlikely(!has_queried)) - __query_convention(); return qcom_scm_convention; } @@ -219,8 +229,8 @@ static int qcom_scm_call_atomic(struct device *dev, } } -static int __qcom_scm_is_call_available(struct device *dev, u32 svc_id, - u32 cmd_id) +static bool __qcom_scm_is_call_available(struct device *dev, u32 svc_id, + u32 cmd_id) { int ret; struct qcom_scm_desc desc = { @@ -247,7 +257,7 @@ static int __qcom_scm_is_call_available(struct device *dev, u32 svc_id, ret = qcom_scm_call(dev, &desc, &res); - return ret ? : res.result[0]; + return ret ? false : !!res.result[0]; } /** @@ -585,9 +595,8 @@ bool qcom_scm_pas_supported(u32 peripheral) }; struct qcom_scm_res res; - ret = __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_PIL, - QCOM_SCM_PIL_PAS_IS_SUPPORTED); - if (ret <= 0) + if (!__qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_PIL, + QCOM_SCM_PIL_PAS_IS_SUPPORTED)) return false; ret = qcom_scm_call(__scm->dev, &desc, &res); @@ -1060,17 +1069,18 @@ EXPORT_SYMBOL(qcom_scm_ice_set_key); */ bool qcom_scm_hdcp_available(void) { + bool avail; int ret = qcom_scm_clk_enable(); if (ret) return ret; - ret = __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_HDCP, + avail = __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_HDCP, QCOM_SCM_HDCP_INVOKE); qcom_scm_clk_disable(); - return ret > 0; + return avail; } EXPORT_SYMBOL(qcom_scm_hdcp_available); @@ -1242,7 +1252,7 @@ static int qcom_scm_probe(struct platform_device *pdev) __scm = scm; __scm->dev = &pdev->dev; - __query_convention(); + __get_convention(); /* * If requested enable "download mode", from this point on warmboot @@ -1291,6 +1301,7 @@ static struct platform_driver qcom_scm_driver = { .driver = { .name = "qcom_scm", .of_match_table = qcom_scm_dt_match, + .suppress_bind_attrs = true, }, .probe = qcom_scm_probe, .shutdown = qcom_scm_shutdown, diff --git a/drivers/firmware/qcom_scm.h b/drivers/firmware/qcom_scm.h index 95cd1ac30ab0..632fe3142462 100644 --- a/drivers/firmware/qcom_scm.h +++ b/drivers/firmware/qcom_scm.h @@ -61,8 +61,11 @@ struct qcom_scm_res { }; #define SCM_SMC_FNID(s, c) ((((s) & 0xFF) << 8) | ((c) & 0xFF)) -extern int scm_smc_call(struct device *dev, const struct qcom_scm_desc *desc, - struct qcom_scm_res *res, bool atomic); +extern int __scm_smc_call(struct device *dev, const struct qcom_scm_desc *desc, + enum qcom_scm_convention qcom_convention, + struct qcom_scm_res *res, bool atomic); +#define scm_smc_call(dev, desc, res, atomic) \ + __scm_smc_call((dev), (desc), qcom_scm_convention, (res), (atomic)) #define SCM_LEGACY_FNID(s, c) (((s) << 10) | ((c) & 0x3ff)) extern int scm_legacy_call_atomic(struct device *dev, diff --git a/drivers/firmware/raspberrypi.c b/drivers/firmware/raspberrypi.c index 30259dc9b805..250e01680742 100644 --- a/drivers/firmware/raspberrypi.c +++ b/drivers/firmware/raspberrypi.c @@ -7,6 +7,7 @@ */ #include <linux/dma-mapping.h> +#include <linux/kref.h> #include <linux/mailbox_client.h> #include <linux/module.h> #include <linux/of_platform.h> @@ -27,6 +28,8 @@ struct rpi_firmware { struct mbox_chan *chan; /* The property channel. */ struct completion c; u32 enabled; + + struct kref consumers; }; static DEFINE_MUTEX(transaction_lock); @@ -225,12 +228,38 @@ static void rpi_register_clk_driver(struct device *dev) -1, NULL, 0); } +static void rpi_firmware_delete(struct kref *kref) +{ + struct rpi_firmware *fw = container_of(kref, struct rpi_firmware, + consumers); + + mbox_free_channel(fw->chan); + kfree(fw); +} + +void rpi_firmware_put(struct rpi_firmware *fw) +{ + kref_put(&fw->consumers, rpi_firmware_delete); +} +EXPORT_SYMBOL_GPL(rpi_firmware_put); + +static void devm_rpi_firmware_put(void *data) +{ + struct rpi_firmware *fw = data; + + rpi_firmware_put(fw); +} + static int rpi_firmware_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct rpi_firmware *fw; - fw = devm_kzalloc(dev, sizeof(*fw), GFP_KERNEL); + /* + * Memory will be freed by rpi_firmware_delete() once all users have + * released their firmware handles. Don't use devm_kzalloc() here. + */ + fw = kzalloc(sizeof(*fw), GFP_KERNEL); if (!fw) return -ENOMEM; @@ -247,6 +276,7 @@ static int rpi_firmware_probe(struct platform_device *pdev) } init_completion(&fw->c); + kref_init(&fw->consumers); platform_set_drvdata(pdev, fw); @@ -275,7 +305,8 @@ static int rpi_firmware_remove(struct platform_device *pdev) rpi_hwmon = NULL; platform_device_unregister(rpi_clk); rpi_clk = NULL; - mbox_free_channel(fw->chan); + + rpi_firmware_put(fw); return 0; } @@ -284,19 +315,51 @@ static int rpi_firmware_remove(struct platform_device *pdev) * rpi_firmware_get - Get pointer to rpi_firmware structure. * @firmware_node: Pointer to the firmware Device Tree node. * + * The reference to rpi_firmware has to be released with rpi_firmware_put(). + * * Returns NULL is the firmware device is not ready. */ struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node) { struct platform_device *pdev = of_find_device_by_node(firmware_node); + struct rpi_firmware *fw; if (!pdev) return NULL; - return platform_get_drvdata(pdev); + fw = platform_get_drvdata(pdev); + if (!fw) + return NULL; + + if (!kref_get_unless_zero(&fw->consumers)) + return NULL; + + return fw; } EXPORT_SYMBOL_GPL(rpi_firmware_get); +/** + * devm_rpi_firmware_get - Get pointer to rpi_firmware structure. + * @firmware_node: Pointer to the firmware Device Tree node. + * + * Returns NULL is the firmware device is not ready. + */ +struct rpi_firmware *devm_rpi_firmware_get(struct device *dev, + struct device_node *firmware_node) +{ + struct rpi_firmware *fw; + + fw = rpi_firmware_get(firmware_node); + if (!fw) + return NULL; + + if (devm_add_action_or_reset(dev, devm_rpi_firmware_put, fw)) + return NULL; + + return fw; +} +EXPORT_SYMBOL_GPL(devm_rpi_firmware_get); + static const struct of_device_id rpi_firmware_of_match[] = { { .compatible = "raspberrypi,bcm2835-firmware", }, {}, diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index 7eb9958662dd..83082e2f2e44 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -2,7 +2,7 @@ /* * Xilinx Zynq MPSoC Firmware layer * - * Copyright (C) 2014-2020 Xilinx, Inc. + * Copyright (C) 2014-2021 Xilinx, Inc. * * Michal Simek <michal.simek@xilinx.com> * Davorin Mista <davorin.mista@aggios.com> @@ -1280,12 +1280,13 @@ static int zynqmp_firmware_probe(struct platform_device *pdev) static int zynqmp_firmware_remove(struct platform_device *pdev) { struct pm_api_feature_data *feature_data; + struct hlist_node *tmp; int i; mfd_remove_devices(&pdev->dev); zynqmp_pm_api_debugfs_exit(); - hash_for_each(pm_api_features_map, i, feature_data, hentry) { + hash_for_each_safe(pm_api_features_map, i, tmp, feature_data, hentry) { hash_del(&feature_data->hentry); kfree(feature_data); } diff --git a/drivers/fpga/Kconfig b/drivers/fpga/Kconfig index d591dd9b7c60..33e15058d0dc 100644 --- a/drivers/fpga/Kconfig +++ b/drivers/fpga/Kconfig @@ -14,13 +14,13 @@ if FPGA config FPGA_MGR_SOCFPGA tristate "Altera SOCFPGA FPGA Manager" - depends on ARCH_SOCFPGA || COMPILE_TEST + depends on ARCH_INTEL_SOCFPGA || COMPILE_TEST help FPGA manager driver support for Altera SOCFPGA. config FPGA_MGR_SOCFPGA_A10 tristate "Altera SoCFPGA Arria10" - depends on ARCH_SOCFPGA || COMPILE_TEST + depends on ARCH_INTEL_SOCFPGA || COMPILE_TEST select REGMAP_MMIO help FPGA manager driver support for Altera Arria10 SoCFPGA. @@ -60,7 +60,7 @@ config FPGA_MGR_ZYNQ_FPGA config FPGA_MGR_STRATIX10_SOC tristate "Intel Stratix10 SoC FPGA Manager" - depends on (ARCH_STRATIX10 && INTEL_STRATIX10_SERVICE) + depends on (ARCH_INTEL_SOCFPGA && INTEL_STRATIX10_SERVICE) help FPGA manager driver support for the Intel Stratix10 SoC. @@ -99,7 +99,7 @@ config FPGA_BRIDGE config SOCFPGA_FPGA_BRIDGE tristate "Altera SoCFPGA FPGA Bridges" - depends on ARCH_SOCFPGA && FPGA_BRIDGE + depends on ARCH_INTEL_SOCFPGA && FPGA_BRIDGE help Say Y to enable drivers for FPGA bridges for Altera SOCFPGA devices. diff --git a/drivers/gpio/gpio-raspberrypi-exp.c b/drivers/gpio/gpio-raspberrypi-exp.c index bb100e0124e6..64a552ecc2ad 100644 --- a/drivers/gpio/gpio-raspberrypi-exp.c +++ b/drivers/gpio/gpio-raspberrypi-exp.c @@ -208,7 +208,7 @@ static int rpi_exp_gpio_probe(struct platform_device *pdev) return -ENOENT; } - fw = rpi_firmware_get(fw_node); + fw = devm_rpi_firmware_get(&pdev->dev, fw_node); of_node_put(fw_node); if (!fw) return -EPROBE_DEFER; diff --git a/drivers/hwmon/scmi-hwmon.c b/drivers/hwmon/scmi-hwmon.c index 17d064e58938..b1329a58ce40 100644 --- a/drivers/hwmon/scmi-hwmon.c +++ b/drivers/hwmon/scmi-hwmon.c @@ -2,7 +2,7 @@ /* * System Control and Management Interface(SCMI) based hwmon sensor driver * - * Copyright (C) 2018 ARM Ltd. + * Copyright (C) 2018-2021 ARM Ltd. * Sudeep Holla <sudeep.holla@arm.com> */ @@ -13,8 +13,10 @@ #include <linux/sysfs.h> #include <linux/thermal.h> +static const struct scmi_sensor_proto_ops *sensor_ops; + struct scmi_sensors { - const struct scmi_handle *handle; + const struct scmi_protocol_handle *ph; const struct scmi_sensor_info **info[hwmon_max]; }; @@ -69,10 +71,9 @@ static int scmi_hwmon_read(struct device *dev, enum hwmon_sensor_types type, u64 value; const struct scmi_sensor_info *sensor; struct scmi_sensors *scmi_sensors = dev_get_drvdata(dev); - const struct scmi_handle *h = scmi_sensors->handle; sensor = *(scmi_sensors->info[type] + channel); - ret = h->sensor_ops->reading_get(h, sensor->id, &value); + ret = sensor_ops->reading_get(scmi_sensors->ph, sensor->id, &value); if (ret) return ret; @@ -169,11 +170,16 @@ static int scmi_hwmon_probe(struct scmi_device *sdev) struct hwmon_channel_info *scmi_hwmon_chan; const struct hwmon_channel_info **ptr_scmi_ci; const struct scmi_handle *handle = sdev->handle; + struct scmi_protocol_handle *ph; - if (!handle || !handle->sensor_ops) + if (!handle) return -ENODEV; - nr_sensors = handle->sensor_ops->count_get(handle); + sensor_ops = handle->devm_protocol_get(sdev, SCMI_PROTOCOL_SENSOR, &ph); + if (IS_ERR(sensor_ops)) + return PTR_ERR(sensor_ops); + + nr_sensors = sensor_ops->count_get(ph); if (!nr_sensors) return -EIO; @@ -181,10 +187,10 @@ static int scmi_hwmon_probe(struct scmi_device *sdev) if (!scmi_sensors) return -ENOMEM; - scmi_sensors->handle = handle; + scmi_sensors->ph = ph; for (i = 0; i < nr_sensors; i++) { - sensor = handle->sensor_ops->info_get(handle, i); + sensor = sensor_ops->info_get(ph, i); if (!sensor) return -EINVAL; @@ -236,7 +242,7 @@ static int scmi_hwmon_probe(struct scmi_device *sdev) } for (i = nr_sensors - 1; i >= 0 ; i--) { - sensor = handle->sensor_ops->info_get(handle, i); + sensor = sensor_ops->info_get(ph, i); if (!sensor) continue; diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index 05ebf7546e3f..3eec59f1fed3 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -369,7 +369,7 @@ comment "I2C system bus drivers (mostly embedded / system-on-chip)" config I2C_ALTERA tristate "Altera Soft IP I2C" - depends on ARCH_SOCFPGA || NIOS2 || COMPILE_TEST + depends on ARCH_INTEL_SOCFPGA || NIOS2 || COMPILE_TEST depends on OF help If you say yes to this option, support will be included for the diff --git a/drivers/iio/common/scmi_sensors/scmi_iio.c b/drivers/iio/common/scmi_sensors/scmi_iio.c index 63e4cec9de5e..141e8aa6911e 100644 --- a/drivers/iio/common/scmi_sensors/scmi_iio.c +++ b/drivers/iio/common/scmi_sensors/scmi_iio.c @@ -22,7 +22,8 @@ #define SCMI_IIO_NUM_OF_AXIS 3 struct scmi_iio_priv { - struct scmi_handle *handle; + const struct scmi_sensor_proto_ops *sensor_ops; + struct scmi_protocol_handle *ph; const struct scmi_sensor_info *sensor_info; struct iio_dev *indio_dev; /* adding one additional channel for timestamp */ @@ -82,7 +83,6 @@ static int scmi_iio_sensor_update_cb(struct notifier_block *nb, static int scmi_iio_buffer_preenable(struct iio_dev *iio_dev) { struct scmi_iio_priv *sensor = iio_priv(iio_dev); - u32 sensor_id = sensor->sensor_info->id; u32 sensor_config = 0; int err; @@ -92,27 +92,12 @@ static int scmi_iio_buffer_preenable(struct iio_dev *iio_dev) sensor_config |= FIELD_PREP(SCMI_SENS_CFG_SENSOR_ENABLED_MASK, SCMI_SENS_CFG_SENSOR_ENABLE); - - err = sensor->handle->notify_ops->register_event_notifier(sensor->handle, - SCMI_PROTOCOL_SENSOR, SCMI_EVENT_SENSOR_UPDATE, - &sensor_id, &sensor->sensor_update_nb); - if (err) { - dev_err(&iio_dev->dev, - "Error in registering sensor update notifier for sensor %s err %d", - sensor->sensor_info->name, err); - return err; - } - - err = sensor->handle->sensor_ops->config_set(sensor->handle, - sensor->sensor_info->id, sensor_config); - if (err) { - sensor->handle->notify_ops->unregister_event_notifier(sensor->handle, - SCMI_PROTOCOL_SENSOR, - SCMI_EVENT_SENSOR_UPDATE, &sensor_id, - &sensor->sensor_update_nb); + err = sensor->sensor_ops->config_set(sensor->ph, + sensor->sensor_info->id, + sensor_config); + if (err) dev_err(&iio_dev->dev, "Error in enabling sensor %s err %d", sensor->sensor_info->name, err); - } return err; } @@ -120,25 +105,14 @@ static int scmi_iio_buffer_preenable(struct iio_dev *iio_dev) static int scmi_iio_buffer_postdisable(struct iio_dev *iio_dev) { struct scmi_iio_priv *sensor = iio_priv(iio_dev); - u32 sensor_id = sensor->sensor_info->id; u32 sensor_config = 0; int err; sensor_config |= FIELD_PREP(SCMI_SENS_CFG_SENSOR_ENABLED_MASK, SCMI_SENS_CFG_SENSOR_DISABLE); - - err = sensor->handle->notify_ops->unregister_event_notifier(sensor->handle, - SCMI_PROTOCOL_SENSOR, SCMI_EVENT_SENSOR_UPDATE, - &sensor_id, &sensor->sensor_update_nb); - if (err) { - dev_err(&iio_dev->dev, - "Error in unregistering sensor update notifier for sensor %s err %d", - sensor->sensor_info->name, err); - return err; - } - - err = sensor->handle->sensor_ops->config_set(sensor->handle, sensor_id, - sensor_config); + err = sensor->sensor_ops->config_set(sensor->ph, + sensor->sensor_info->id, + sensor_config); if (err) { dev_err(&iio_dev->dev, "Error in disabling sensor %s with err %d", @@ -161,8 +135,9 @@ static int scmi_iio_set_odr_val(struct iio_dev *iio_dev, int val, int val2) u32 sensor_config; char buf[32]; - int err = sensor->handle->sensor_ops->config_get(sensor->handle, - sensor->sensor_info->id, &sensor_config); + int err = sensor->sensor_ops->config_get(sensor->ph, + sensor->sensor_info->id, + &sensor_config); if (err) { dev_err(&iio_dev->dev, "Error in getting sensor config for sensor %s err %d", @@ -208,8 +183,9 @@ static int scmi_iio_set_odr_val(struct iio_dev *iio_dev, int val, int val2) sensor_config |= FIELD_PREP(SCMI_SENS_CFG_ROUND_MASK, SCMI_SENS_CFG_ROUND_AUTO); - err = sensor->handle->sensor_ops->config_set(sensor->handle, - sensor->sensor_info->id, sensor_config); + err = sensor->sensor_ops->config_set(sensor->ph, + sensor->sensor_info->id, + sensor_config); if (err) dev_err(&iio_dev->dev, "Error in setting sensor update interval for sensor %s value %u err %d", @@ -274,8 +250,9 @@ static int scmi_iio_get_odr_val(struct iio_dev *iio_dev, int *val, int *val2) u32 sensor_config; int mult; - int err = sensor->handle->sensor_ops->config_get(sensor->handle, - sensor->sensor_info->id, &sensor_config); + int err = sensor->sensor_ops->config_get(sensor->ph, + sensor->sensor_info->id, + &sensor_config); if (err) { dev_err(&iio_dev->dev, "Error in getting sensor config for sensor %s err %d", @@ -528,15 +505,19 @@ static int scmi_iio_set_sampling_freq_avail(struct iio_dev *iio_dev) return 0; } -static struct iio_dev *scmi_alloc_iiodev(struct device *dev, - struct scmi_handle *handle, - const struct scmi_sensor_info *sensor_info) +static struct iio_dev * +scmi_alloc_iiodev(struct scmi_device *sdev, + const struct scmi_sensor_proto_ops *ops, + struct scmi_protocol_handle *ph, + const struct scmi_sensor_info *sensor_info) { struct iio_chan_spec *iio_channels; struct scmi_iio_priv *sensor; enum iio_modifier modifier; enum iio_chan_type type; struct iio_dev *iiodev; + struct device *dev = &sdev->dev; + const struct scmi_handle *handle = sdev->handle; int i, ret; iiodev = devm_iio_device_alloc(dev, sizeof(*sensor)); @@ -546,7 +527,8 @@ static struct iio_dev *scmi_alloc_iiodev(struct device *dev, iiodev->modes = INDIO_DIRECT_MODE; iiodev->dev.parent = dev; sensor = iio_priv(iiodev); - sensor->handle = handle; + sensor->sensor_ops = ops; + sensor->ph = ph; sensor->sensor_info = sensor_info; sensor->sensor_update_nb.notifier_call = scmi_iio_sensor_update_cb; sensor->indio_dev = iiodev; @@ -581,6 +563,17 @@ static struct iio_dev *scmi_alloc_iiodev(struct device *dev, sensor_info->axis[i].id); } + ret = handle->notify_ops->devm_event_notifier_register(sdev, + SCMI_PROTOCOL_SENSOR, SCMI_EVENT_SENSOR_UPDATE, + &sensor->sensor_info->id, + &sensor->sensor_update_nb); + if (ret) { + dev_err(&iiodev->dev, + "Error in registering sensor update notifier for sensor %s err %d", + sensor->sensor_info->name, ret); + return ERR_PTR(ret); + } + scmi_iio_set_timestamp_channel(&iio_channels[i], i); iiodev->channels = iio_channels; return iiodev; @@ -590,24 +583,30 @@ static int scmi_iio_dev_probe(struct scmi_device *sdev) { const struct scmi_sensor_info *sensor_info; struct scmi_handle *handle = sdev->handle; + const struct scmi_sensor_proto_ops *sensor_ops; + struct scmi_protocol_handle *ph; struct device *dev = &sdev->dev; struct iio_dev *scmi_iio_dev; u16 nr_sensors; int err = -ENODEV, i; - if (!handle || !handle->sensor_ops) { + if (!handle) + return -ENODEV; + + sensor_ops = handle->devm_protocol_get(sdev, SCMI_PROTOCOL_SENSOR, &ph); + if (IS_ERR(sensor_ops)) { dev_err(dev, "SCMI device has no sensor interface\n"); - return -EINVAL; + return PTR_ERR(sensor_ops); } - nr_sensors = handle->sensor_ops->count_get(handle); + nr_sensors = sensor_ops->count_get(ph); if (!nr_sensors) { dev_dbg(dev, "0 sensors found via SCMI bus\n"); return -ENODEV; } for (i = 0; i < nr_sensors; i++) { - sensor_info = handle->sensor_ops->info_get(handle, i); + sensor_info = sensor_ops->info_get(ph, i); if (!sensor_info) { dev_err(dev, "SCMI sensor %d has missing info\n", i); return -EINVAL; @@ -622,7 +621,8 @@ static int scmi_iio_dev_probe(struct scmi_device *sdev) sensor_info->axis[0].type != RADIANS_SEC) continue; - scmi_iio_dev = scmi_alloc_iiodev(dev, handle, sensor_info); + scmi_iio_dev = scmi_alloc_iiodev(sdev, sensor_ops, ph, + sensor_info); if (IS_ERR(scmi_iio_dev)) { dev_err(dev, "failed to allocate IIO device for sensor %s: %ld\n", diff --git a/drivers/input/touchscreen/raspberrypi-ts.c b/drivers/input/touchscreen/raspberrypi-ts.c index ef6aaed217cf..5000f5fd9ec3 100644 --- a/drivers/input/touchscreen/raspberrypi-ts.c +++ b/drivers/input/touchscreen/raspberrypi-ts.c @@ -160,7 +160,7 @@ static int rpi_ts_probe(struct platform_device *pdev) touchbuf = (u32)ts->fw_regs_phys; error = rpi_firmware_property(fw, RPI_FIRMWARE_FRAMEBUFFER_SET_TOUCHBUF, &touchbuf, sizeof(touchbuf)); - + rpi_firmware_put(fw); if (error || touchbuf != 0) { dev_warn(dev, "Failed to set touchbuf, %d\n", error); return error; diff --git a/drivers/memory/fsl-corenet-cf.c b/drivers/memory/fsl-corenet-cf.c index 0309bd5a1800..f8ea592c9cb5 100644 --- a/drivers/memory/fsl-corenet-cf.c +++ b/drivers/memory/fsl-corenet-cf.c @@ -192,10 +192,8 @@ static int ccf_probe(struct platform_device *pdev) } ccf->regs = devm_ioremap_resource(&pdev->dev, r); - if (IS_ERR(ccf->regs)) { - dev_err(&pdev->dev, "%s: can't map mem resource\n", __func__); + if (IS_ERR(ccf->regs)) return PTR_ERR(ccf->regs); - } ccf->dev = &pdev->dev; ccf->info = match->data; diff --git a/drivers/memory/mtk-smi.c b/drivers/memory/mtk-smi.c index b396253fcf4b..c5fb51f73b34 100644 --- a/drivers/memory/mtk-smi.c +++ b/drivers/memory/mtk-smi.c @@ -319,6 +319,7 @@ static int mtk_smi_larb_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct device_node *smi_node; struct platform_device *smi_pdev; + struct device_link *link; larb = devm_kzalloc(dev, sizeof(*larb), GFP_KERNEL); if (!larb) @@ -358,6 +359,12 @@ static int mtk_smi_larb_probe(struct platform_device *pdev) if (!platform_get_drvdata(smi_pdev)) return -EPROBE_DEFER; larb->smi_common_dev = &smi_pdev->dev; + link = device_link_add(dev, larb->smi_common_dev, + DL_FLAG_PM_RUNTIME | DL_FLAG_STATELESS); + if (!link) { + dev_err(dev, "Unable to link smi-common dev\n"); + return -ENODEV; + } } else { dev_err(dev, "Failed to get the smi_common device\n"); return -EINVAL; @@ -370,6 +377,9 @@ static int mtk_smi_larb_probe(struct platform_device *pdev) static int mtk_smi_larb_remove(struct platform_device *pdev) { + struct mtk_smi_larb *larb = platform_get_drvdata(pdev); + + device_link_remove(&pdev->dev, larb->smi_common_dev); pm_runtime_disable(&pdev->dev); component_del(&pdev->dev, &mtk_smi_larb_component_ops); return 0; @@ -381,17 +391,9 @@ static int __maybe_unused mtk_smi_larb_resume(struct device *dev) const struct mtk_smi_larb_gen *larb_gen = larb->larb_gen; int ret; - /* Power on smi-common. */ - ret = pm_runtime_resume_and_get(larb->smi_common_dev); - if (ret < 0) { - dev_err(dev, "Failed to pm get for smi-common(%d).\n", ret); - return ret; - } - ret = mtk_smi_clk_enable(&larb->smi); if (ret < 0) { dev_err(dev, "Failed to enable clock(%d).\n", ret); - pm_runtime_put_sync(larb->smi_common_dev); return ret; } @@ -406,7 +408,6 @@ static int __maybe_unused mtk_smi_larb_suspend(struct device *dev) struct mtk_smi_larb *larb = dev_get_drvdata(dev); mtk_smi_clk_disable(&larb->smi); - pm_runtime_put_sync(larb->smi_common_dev); return 0; } diff --git a/drivers/memory/omap-gpmc.c b/drivers/memory/omap-gpmc.c index cfa730cfd145..f80c2ea39ca4 100644 --- a/drivers/memory/omap-gpmc.c +++ b/drivers/memory/omap-gpmc.c @@ -1009,8 +1009,8 @@ EXPORT_SYMBOL(gpmc_cs_request); void gpmc_cs_free(int cs) { - struct gpmc_cs_data *gpmc = &gpmc_cs[cs]; - struct resource *res = &gpmc->mem; + struct gpmc_cs_data *gpmc; + struct resource *res; spin_lock(&gpmc_mem_lock); if (cs >= gpmc_cs_num || cs < 0 || !gpmc_cs_reserved(cs)) { @@ -1018,6 +1018,9 @@ void gpmc_cs_free(int cs) spin_unlock(&gpmc_mem_lock); return; } + gpmc = &gpmc_cs[cs]; + res = &gpmc->mem; + gpmc_cs_disable_mem(cs); if (res->flags) release_resource(res); diff --git a/drivers/memory/pl353-smc.c b/drivers/memory/pl353-smc.c index 3b5b1045edd9..9c0a28416777 100644 --- a/drivers/memory/pl353-smc.c +++ b/drivers/memory/pl353-smc.c @@ -63,7 +63,7 @@ /* ECC memory config register specific constants */ #define PL353_SMC_ECC_MEMCFG_MODE_MASK 0xC #define PL353_SMC_ECC_MEMCFG_MODE_SHIFT 2 -#define PL353_SMC_ECC_MEMCFG_PGSIZE_MASK 0xC +#define PL353_SMC_ECC_MEMCFG_PGSIZE_MASK 0x3 #define PL353_SMC_DC_UPT_NAND_REGS ((4 << 23) | /* CS: NAND chip */ \ (2 << 21)) /* UpdateRegs operation */ diff --git a/drivers/memory/renesas-rpc-if.c b/drivers/memory/renesas-rpc-if.c index 8d36e221def1..45eed659b0c6 100644 --- a/drivers/memory/renesas-rpc-if.c +++ b/drivers/memory/renesas-rpc-if.c @@ -192,10 +192,10 @@ int rpcif_sw_init(struct rpcif *rpc, struct device *dev) } res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dirmap"); - rpc->size = resource_size(res); rpc->dirmap = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(rpc->dirmap)) rpc->dirmap = NULL; + rpc->size = resource_size(res); rpc->rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL); diff --git a/drivers/memory/samsung/exynos5422-dmc.c b/drivers/memory/samsung/exynos5422-dmc.c index 1dabb509dec3..dee503640e12 100644 --- a/drivers/memory/samsung/exynos5422-dmc.c +++ b/drivers/memory/samsung/exynos5422-dmc.c @@ -1298,7 +1298,9 @@ static int exynos5_dmc_init_clks(struct exynos5_dmc *dmc) dmc->curr_volt = target_volt; - clk_set_parent(dmc->mout_mx_mspll_ccore, dmc->mout_spll); + ret = clk_set_parent(dmc->mout_mx_mspll_ccore, dmc->mout_spll); + if (ret) + return ret; clk_prepare_enable(dmc->fout_bpll); clk_prepare_enable(dmc->mout_bpll); diff --git a/drivers/memory/tegra/mc.c b/drivers/memory/tegra/mc.c index a21163ccadc4..e58c3e5baea0 100644 --- a/drivers/memory/tegra/mc.c +++ b/drivers/memory/tegra/mc.c @@ -827,6 +827,15 @@ static int tegra_mc_probe(struct platform_device *pdev) return err; } + mc->debugfs.root = debugfs_create_dir("mc", NULL); + + if (mc->soc->init) { + err = mc->soc->init(mc); + if (err < 0) + dev_err(&pdev->dev, "failed to initialize SoC driver: %d\n", + err); + } + err = tegra_mc_reset_setup(mc); if (err < 0) dev_err(&pdev->dev, "failed to register reset controller: %d\n", diff --git a/drivers/memory/tegra/mc.h b/drivers/memory/tegra/mc.h index 33e40d600592..1ee34f0da4f7 100644 --- a/drivers/memory/tegra/mc.h +++ b/drivers/memory/tegra/mc.h @@ -92,12 +92,12 @@ icc_provider_to_tegra_mc(struct icc_provider *provider) return container_of(provider, struct tegra_mc, provider); } -static inline u32 mc_readl(struct tegra_mc *mc, unsigned long offset) +static inline u32 mc_readl(const struct tegra_mc *mc, unsigned long offset) { return readl_relaxed(mc->regs + offset); } -static inline void mc_writel(struct tegra_mc *mc, u32 value, +static inline void mc_writel(const struct tegra_mc *mc, u32 value, unsigned long offset) { writel_relaxed(value, mc->regs + offset); diff --git a/drivers/memory/tegra/tegra124-emc.c b/drivers/memory/tegra/tegra124-emc.c index bee8d9f79b04..5699d909abc2 100644 --- a/drivers/memory/tegra/tegra124-emc.c +++ b/drivers/memory/tegra/tegra124-emc.c @@ -905,7 +905,7 @@ static int emc_init(struct tegra_emc *emc) else emc->dram_bus_width = 32; - dev_info(emc->dev, "%ubit DRAM bus\n", emc->dram_bus_width); + dev_info_once(emc->dev, "%ubit DRAM bus\n", emc->dram_bus_width); emc->dram_type &= EMC_FBIO_CFG5_DRAM_TYPE_MASK; emc->dram_type >>= EMC_FBIO_CFG5_DRAM_TYPE_SHIFT; @@ -1204,7 +1204,7 @@ static int tegra_emc_debug_min_rate_set(void *data, u64 rate) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(tegra_emc_debug_min_rate_fops, +DEFINE_DEBUGFS_ATTRIBUTE(tegra_emc_debug_min_rate_fops, tegra_emc_debug_min_rate_get, tegra_emc_debug_min_rate_set, "%llu\n"); @@ -1234,7 +1234,7 @@ static int tegra_emc_debug_max_rate_set(void *data, u64 rate) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(tegra_emc_debug_max_rate_fops, +DEFINE_DEBUGFS_ATTRIBUTE(tegra_emc_debug_max_rate_fops, tegra_emc_debug_max_rate_get, tegra_emc_debug_max_rate_set, "%llu\n"); @@ -1419,8 +1419,8 @@ static int tegra_emc_opp_table_init(struct tegra_emc *emc) goto put_hw_table; } - dev_info(emc->dev, "OPP HW ver. 0x%x, current clock rate %lu MHz\n", - hw_version, clk_get_rate(emc->clk) / 1000000); + dev_info_once(emc->dev, "OPP HW ver. 0x%x, current clock rate %lu MHz\n", + hw_version, clk_get_rate(emc->clk) / 1000000); /* first dummy rate-set initializes voltage state */ err = dev_pm_opp_set_rate(emc->dev, clk_get_rate(emc->clk)); @@ -1475,9 +1475,9 @@ static int tegra_emc_probe(struct platform_device *pdev) if (err) return err; } else { - dev_info(&pdev->dev, - "no memory timings for RAM code %u found in DT\n", - ram_code); + dev_info_once(&pdev->dev, + "no memory timings for RAM code %u found in DT\n", + ram_code); } err = emc_init(emc); diff --git a/drivers/memory/tegra/tegra20-emc.c b/drivers/memory/tegra/tegra20-emc.c index d653a6be8d7f..da8a0da8da79 100644 --- a/drivers/memory/tegra/tegra20-emc.c +++ b/drivers/memory/tegra/tegra20-emc.c @@ -411,12 +411,12 @@ static int tegra_emc_load_timings_from_dt(struct tegra_emc *emc, sort(emc->timings, emc->num_timings, sizeof(*timing), cmp_timings, NULL); - dev_info(emc->dev, - "got %u timings for RAM code %u (min %luMHz max %luMHz)\n", - emc->num_timings, - tegra_read_ram_code(), - emc->timings[0].rate / 1000000, - emc->timings[emc->num_timings - 1].rate / 1000000); + dev_info_once(emc->dev, + "got %u timings for RAM code %u (min %luMHz max %luMHz)\n", + emc->num_timings, + tegra_read_ram_code(), + emc->timings[0].rate / 1000000, + emc->timings[emc->num_timings - 1].rate / 1000000); return 0; } @@ -429,7 +429,7 @@ tegra_emc_find_node_by_ram_code(struct device *dev) int err; if (of_get_child_count(dev->of_node) == 0) { - dev_info(dev, "device-tree doesn't have memory timings\n"); + dev_info_once(dev, "device-tree doesn't have memory timings\n"); return NULL; } @@ -496,7 +496,7 @@ static int emc_setup_hw(struct tegra_emc *emc) else emc->dram_bus_width = 32; - dev_info(emc->dev, "%ubit DRAM bus\n", emc->dram_bus_width); + dev_info_once(emc->dev, "%ubit DRAM bus\n", emc->dram_bus_width); return 0; } @@ -931,8 +931,8 @@ static int tegra_emc_opp_table_init(struct tegra_emc *emc) goto put_hw_table; } - dev_info(emc->dev, "OPP HW ver. 0x%x, current clock rate %lu MHz\n", - hw_version, clk_get_rate(emc->clk) / 1000000); + dev_info_once(emc->dev, "OPP HW ver. 0x%x, current clock rate %lu MHz\n", + hw_version, clk_get_rate(emc->clk) / 1000000); /* first dummy rate-set initializes voltage state */ err = dev_pm_opp_set_rate(emc->dev, clk_get_rate(emc->clk)); diff --git a/drivers/memory/tegra/tegra20.c b/drivers/memory/tegra/tegra20.c index 29ecf02805a0..2db68a913b7a 100644 --- a/drivers/memory/tegra/tegra20.c +++ b/drivers/memory/tegra/tegra20.c @@ -3,6 +3,9 @@ * Copyright (C) 2012 NVIDIA CORPORATION. All rights reserved. */ +#include <linux/bitfield.h> +#include <linux/delay.h> +#include <linux/mutex.h> #include <linux/of_device.h> #include <linux/slab.h> #include <linux/string.h> @@ -11,6 +14,79 @@ #include "mc.h" +#define MC_STAT_CONTROL 0x90 +#define MC_STAT_EMC_CLOCK_LIMIT 0xa0 +#define MC_STAT_EMC_CLOCKS 0xa4 +#define MC_STAT_EMC_CONTROL_0 0xa8 +#define MC_STAT_EMC_CONTROL_1 0xac +#define MC_STAT_EMC_COUNT_0 0xb8 +#define MC_STAT_EMC_COUNT_1 0xbc + +#define MC_STAT_CONTROL_CLIENT_ID GENMASK(13, 8) +#define MC_STAT_CONTROL_EVENT GENMASK(23, 16) +#define MC_STAT_CONTROL_PRI_EVENT GENMASK(25, 24) +#define MC_STAT_CONTROL_FILTER_CLIENT_ENABLE GENMASK(26, 26) +#define MC_STAT_CONTROL_FILTER_PRI GENMASK(29, 28) + +#define MC_STAT_CONTROL_PRI_EVENT_HP 0 +#define MC_STAT_CONTROL_PRI_EVENT_TM 1 +#define MC_STAT_CONTROL_PRI_EVENT_BW 2 + +#define MC_STAT_CONTROL_FILTER_PRI_DISABLE 0 +#define MC_STAT_CONTROL_FILTER_PRI_NO 1 +#define MC_STAT_CONTROL_FILTER_PRI_YES 2 + +#define MC_STAT_CONTROL_EVENT_QUALIFIED 0 +#define MC_STAT_CONTROL_EVENT_ANY_READ 1 +#define MC_STAT_CONTROL_EVENT_ANY_WRITE 2 +#define MC_STAT_CONTROL_EVENT_RD_WR_CHANGE 3 +#define MC_STAT_CONTROL_EVENT_SUCCESSIVE 4 +#define MC_STAT_CONTROL_EVENT_ARB_BANK_AA 5 +#define MC_STAT_CONTROL_EVENT_ARB_BANK_BB 6 +#define MC_STAT_CONTROL_EVENT_PAGE_MISS 7 +#define MC_STAT_CONTROL_EVENT_AUTO_PRECHARGE 8 + +#define EMC_GATHER_RST (0 << 8) +#define EMC_GATHER_CLEAR (1 << 8) +#define EMC_GATHER_DISABLE (2 << 8) +#define EMC_GATHER_ENABLE (3 << 8) + +#define MC_STAT_SAMPLE_TIME_USEC 16000 + +/* we store collected statistics as a fixed point values */ +#define MC_FX_FRAC_SCALE 100 + +static DEFINE_MUTEX(tegra20_mc_stat_lock); + +struct tegra20_mc_stat_gather { + unsigned int pri_filter; + unsigned int pri_event; + unsigned int result; + unsigned int client; + unsigned int event; + bool client_enb; +}; + +struct tegra20_mc_stat { + struct tegra20_mc_stat_gather gather0; + struct tegra20_mc_stat_gather gather1; + unsigned int sample_time_usec; + const struct tegra_mc *mc; +}; + +struct tegra20_mc_client_stat { + unsigned int events; + unsigned int arb_high_prio; + unsigned int arb_timeout; + unsigned int arb_bandwidth; + unsigned int rd_wr_change; + unsigned int successive; + unsigned int page_miss; + unsigned int auto_precharge; + unsigned int arb_bank_aa; + unsigned int arb_bank_bb; +}; + static const struct tegra_mc_client tegra20_mc_clients[] = { { .id = 0x00, @@ -356,6 +432,261 @@ static const struct tegra_mc_icc_ops tegra20_mc_icc_ops = { .set = tegra20_mc_icc_set, }; +static u32 tegra20_mc_stat_gather_control(const struct tegra20_mc_stat_gather *g) +{ + u32 control; + + control = FIELD_PREP(MC_STAT_CONTROL_EVENT, g->event); + control |= FIELD_PREP(MC_STAT_CONTROL_CLIENT_ID, g->client); + control |= FIELD_PREP(MC_STAT_CONTROL_PRI_EVENT, g->pri_event); + control |= FIELD_PREP(MC_STAT_CONTROL_FILTER_PRI, g->pri_filter); + control |= FIELD_PREP(MC_STAT_CONTROL_FILTER_CLIENT_ENABLE, g->client_enb); + + return control; +} + +static void tegra20_mc_stat_gather(struct tegra20_mc_stat *stat) +{ + u32 clocks, count0, count1, control_0, control_1; + const struct tegra_mc *mc = stat->mc; + + control_0 = tegra20_mc_stat_gather_control(&stat->gather0); + control_1 = tegra20_mc_stat_gather_control(&stat->gather1); + + /* + * Reset statistic gathers state, select statistics collection mode + * and set clocks counter saturation limit to maximum. + */ + mc_writel(mc, 0x00000000, MC_STAT_CONTROL); + mc_writel(mc, control_0, MC_STAT_EMC_CONTROL_0); + mc_writel(mc, control_1, MC_STAT_EMC_CONTROL_1); + mc_writel(mc, 0xffffffff, MC_STAT_EMC_CLOCK_LIMIT); + + mc_writel(mc, EMC_GATHER_ENABLE, MC_STAT_CONTROL); + fsleep(stat->sample_time_usec); + mc_writel(mc, EMC_GATHER_DISABLE, MC_STAT_CONTROL); + + count0 = mc_readl(mc, MC_STAT_EMC_COUNT_0); + count1 = mc_readl(mc, MC_STAT_EMC_COUNT_1); + clocks = mc_readl(mc, MC_STAT_EMC_CLOCKS); + clocks = max(clocks / 100 / MC_FX_FRAC_SCALE, 1u); + + stat->gather0.result = DIV_ROUND_UP(count0, clocks); + stat->gather1.result = DIV_ROUND_UP(count1, clocks); +} + +static void tegra20_mc_stat_events(const struct tegra_mc *mc, + const struct tegra_mc_client *client0, + const struct tegra_mc_client *client1, + unsigned int pri_filter, + unsigned int pri_event, + unsigned int event, + unsigned int *result0, + unsigned int *result1) +{ + struct tegra20_mc_stat stat = {}; + + stat.gather0.client = client0 ? client0->id : 0; + stat.gather0.pri_filter = pri_filter; + stat.gather0.client_enb = !!client0; + stat.gather0.pri_event = pri_event; + stat.gather0.event = event; + + stat.gather1.client = client1 ? client1->id : 0; + stat.gather1.pri_filter = pri_filter; + stat.gather1.client_enb = !!client1; + stat.gather1.pri_event = pri_event; + stat.gather1.event = event; + + stat.sample_time_usec = MC_STAT_SAMPLE_TIME_USEC; + stat.mc = mc; + + tegra20_mc_stat_gather(&stat); + + *result0 = stat.gather0.result; + *result1 = stat.gather1.result; +} + +static void tegra20_mc_collect_stats(const struct tegra_mc *mc, + struct tegra20_mc_client_stat *stats) +{ + const struct tegra_mc_client *client0, *client1; + unsigned int i; + + /* collect memory controller utilization percent for each client */ + for (i = 0; i < mc->soc->num_clients; i += 2) { + client0 = &mc->soc->clients[i]; + client1 = &mc->soc->clients[i + 1]; + + if (i + 1 == mc->soc->num_clients) + client1 = NULL; + + tegra20_mc_stat_events(mc, client0, client1, + MC_STAT_CONTROL_FILTER_PRI_DISABLE, + MC_STAT_CONTROL_PRI_EVENT_HP, + MC_STAT_CONTROL_EVENT_QUALIFIED, + &stats[i + 0].events, + &stats[i + 1].events); + } + + /* collect more info from active clients */ + for (i = 0; i < mc->soc->num_clients; i++) { + unsigned int clienta, clientb = mc->soc->num_clients; + + for (client0 = NULL; i < mc->soc->num_clients; i++) { + if (stats[i].events) { + client0 = &mc->soc->clients[i]; + clienta = i++; + break; + } + } + + for (client1 = NULL; i < mc->soc->num_clients; i++) { + if (stats[i].events) { + client1 = &mc->soc->clients[i]; + clientb = i; + break; + } + } + + if (!client0 && !client1) + break; + + tegra20_mc_stat_events(mc, client0, client1, + MC_STAT_CONTROL_FILTER_PRI_YES, + MC_STAT_CONTROL_PRI_EVENT_HP, + MC_STAT_CONTROL_EVENT_QUALIFIED, + &stats[clienta].arb_high_prio, + &stats[clientb].arb_high_prio); + + tegra20_mc_stat_events(mc, client0, client1, + MC_STAT_CONTROL_FILTER_PRI_YES, + MC_STAT_CONTROL_PRI_EVENT_TM, + MC_STAT_CONTROL_EVENT_QUALIFIED, + &stats[clienta].arb_timeout, + &stats[clientb].arb_timeout); + + tegra20_mc_stat_events(mc, client0, client1, + MC_STAT_CONTROL_FILTER_PRI_YES, + MC_STAT_CONTROL_PRI_EVENT_BW, + MC_STAT_CONTROL_EVENT_QUALIFIED, + &stats[clienta].arb_bandwidth, + &stats[clientb].arb_bandwidth); + + tegra20_mc_stat_events(mc, client0, client1, + MC_STAT_CONTROL_FILTER_PRI_DISABLE, + MC_STAT_CONTROL_PRI_EVENT_HP, + MC_STAT_CONTROL_EVENT_RD_WR_CHANGE, + &stats[clienta].rd_wr_change, + &stats[clientb].rd_wr_change); + + tegra20_mc_stat_events(mc, client0, client1, + MC_STAT_CONTROL_FILTER_PRI_DISABLE, + MC_STAT_CONTROL_PRI_EVENT_HP, + MC_STAT_CONTROL_EVENT_SUCCESSIVE, + &stats[clienta].successive, + &stats[clientb].successive); + + tegra20_mc_stat_events(mc, client0, client1, + MC_STAT_CONTROL_FILTER_PRI_DISABLE, + MC_STAT_CONTROL_PRI_EVENT_HP, + MC_STAT_CONTROL_EVENT_PAGE_MISS, + &stats[clienta].page_miss, + &stats[clientb].page_miss); + } +} + +static void tegra20_mc_printf_percents(struct seq_file *s, + const char *fmt, + unsigned int percents_fx) +{ + char percents_str[8]; + + snprintf(percents_str, ARRAY_SIZE(percents_str), "%3u.%02u%%", + percents_fx / MC_FX_FRAC_SCALE, percents_fx % MC_FX_FRAC_SCALE); + + seq_printf(s, fmt, percents_str); +} + +static int tegra20_mc_stats_show(struct seq_file *s, void *unused) +{ + const struct tegra_mc *mc = dev_get_drvdata(s->private); + struct tegra20_mc_client_stat *stats; + unsigned int i; + + stats = kcalloc(mc->soc->num_clients + 1, sizeof(*stats), GFP_KERNEL); + if (!stats) + return -ENOMEM; + + mutex_lock(&tegra20_mc_stat_lock); + + tegra20_mc_collect_stats(mc, stats); + + mutex_unlock(&tegra20_mc_stat_lock); + + seq_puts(s, "Memory client Events Timeout High priority Bandwidth ARB RW change Successive Page miss\n"); + seq_puts(s, "-----------------------------------------------------------------------------------------------------\n"); + + for (i = 0; i < mc->soc->num_clients; i++) { + seq_printf(s, "%-14s ", mc->soc->clients[i].name); + + /* An event is generated when client performs R/W request. */ + tegra20_mc_printf_percents(s, "%-9s", stats[i].events); + + /* + * An event is generated based on the timeout (TM) signal + * accompanying a request for arbitration. + */ + tegra20_mc_printf_percents(s, "%-10s", stats[i].arb_timeout); + + /* + * An event is generated based on the high-priority (HP) signal + * accompanying a request for arbitration. + */ + tegra20_mc_printf_percents(s, "%-16s", stats[i].arb_high_prio); + + /* + * An event is generated based on the bandwidth (BW) signal + * accompanying a request for arbitration. + */ + tegra20_mc_printf_percents(s, "%-16s", stats[i].arb_bandwidth); + + /* + * An event is generated when the memory controller switches + * between making a read request to making a write request. + */ + tegra20_mc_printf_percents(s, "%-12s", stats[i].rd_wr_change); + + /* + * An even generated when the chosen client has wins arbitration + * when it was also the winner at the previous request. If a + * client makes N requests in a row that are honored, SUCCESSIVE + * will be counted (N-1) times. Large values for this event + * imply that if we were patient enough, all of those requests + * could have been coalesced. + */ + tegra20_mc_printf_percents(s, "%-13s", stats[i].successive); + + /* + * An event is generated when the memory controller detects a + * page miss for the current request. + */ + tegra20_mc_printf_percents(s, "%-12s\n", stats[i].page_miss); + } + + kfree(stats); + + return 0; +} + +static int tegra20_mc_init(struct tegra_mc *mc) +{ + debugfs_create_devm_seqfile(mc->dev, "stats", mc->debugfs.root, + tegra20_mc_stats_show); + + return 0; +} + const struct tegra_mc_soc tegra20_mc_soc = { .clients = tegra20_mc_clients, .num_clients = ARRAY_SIZE(tegra20_mc_clients), @@ -367,4 +698,5 @@ const struct tegra_mc_soc tegra20_mc_soc = { .resets = tegra20_mc_resets, .num_resets = ARRAY_SIZE(tegra20_mc_resets), .icc_ops = &tegra20_mc_icc_ops, + .init = tegra20_mc_init, }; diff --git a/drivers/memory/tegra/tegra30-emc.c b/drivers/memory/tegra/tegra30-emc.c index 6985da0ffb35..829f6d673c96 100644 --- a/drivers/memory/tegra/tegra30-emc.c +++ b/drivers/memory/tegra/tegra30-emc.c @@ -998,12 +998,12 @@ static int emc_load_timings_from_dt(struct tegra_emc *emc, if (err) return err; - dev_info(emc->dev, - "got %u timings for RAM code %u (min %luMHz max %luMHz)\n", - emc->num_timings, - tegra_read_ram_code(), - emc->timings[0].rate / 1000000, - emc->timings[emc->num_timings - 1].rate / 1000000); + dev_info_once(emc->dev, + "got %u timings for RAM code %u (min %luMHz max %luMHz)\n", + emc->num_timings, + tegra_read_ram_code(), + emc->timings[0].rate / 1000000, + emc->timings[emc->num_timings - 1].rate / 1000000); return 0; } @@ -1015,7 +1015,7 @@ static struct device_node *emc_find_node_by_ram_code(struct device *dev) int err; if (of_get_child_count(dev->of_node) == 0) { - dev_info(dev, "device-tree doesn't have memory timings\n"); + dev_info_once(dev, "device-tree doesn't have memory timings\n"); return NULL; } @@ -1503,8 +1503,8 @@ static int tegra_emc_opp_table_init(struct tegra_emc *emc) goto put_hw_table; } - dev_info(emc->dev, "OPP HW ver. 0x%x, current clock rate %lu MHz\n", - hw_version, clk_get_rate(emc->clk) / 1000000); + dev_info_once(emc->dev, "OPP HW ver. 0x%x, current clock rate %lu MHz\n", + hw_version, clk_get_rate(emc->clk) / 1000000); /* first dummy rate-set initializes voltage state */ err = dev_pm_opp_set_rate(emc->dev, clk_get_rate(emc->clk)); diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index b74efa469e90..2ce9edb90901 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -21,7 +21,7 @@ config MFD_CS5535 config MFD_ALTERA_A10SR bool "Altera Arria10 DevKit System Resource chip" - depends on ARCH_SOCFPGA && SPI_MASTER=y && OF + depends on ARCH_INTEL_SOCFPGA && SPI_MASTER=y && OF select REGMAP_SPI select MFD_CORE help @@ -32,7 +32,7 @@ config MFD_ALTERA_A10SR config MFD_ALTERA_SYSMGR bool "Altera SOCFPGA System Manager" - depends on (ARCH_SOCFPGA || ARCH_STRATIX10) && OF + depends on ARCH_INTEL_SOCFPGA && OF select MFD_SYSCON help Select this to get System Manager support for all Altera branded diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig index e675ba12fde2..7737e4d0bb9e 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig @@ -140,8 +140,8 @@ config DWMAC_ROCKCHIP config DWMAC_SOCFPGA tristate "SOCFPGA dwmac support" - default (ARCH_SOCFPGA || ARCH_STRATIX10) - depends on OF && (ARCH_SOCFPGA || ARCH_STRATIX10 || COMPILE_TEST) + default ARCH_INTEL_SOCFPGA + depends on OF && (ARCH_INTEL_SOCFPGA || COMPILE_TEST) select MFD_SYSCON help Support for ethernet controller on Altera SOCFPGA diff --git a/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c b/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c index 0cab4c2576e2..996ebcba4d38 100644 --- a/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c +++ b/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c @@ -60,7 +60,7 @@ #define COND2 { ASPEED_IP_SCU, SCU94, GENMASK(1, 0), 0, 0 } /* LHCR0 is offset from the end of the H8S/2168-compatible registers */ -#define LHCR0 0x20 +#define LHCR0 0xa0 #define GFX064 0x64 #define B14 0 @@ -2648,14 +2648,19 @@ static struct regmap *aspeed_g5_acquire_regmap(struct aspeed_pinmux_data *ctx, } if (ip == ASPEED_IP_LPC) { - struct device_node *node; + struct device_node *np; struct regmap *map; - node = of_parse_phandle(ctx->dev->of_node, + np = of_parse_phandle(ctx->dev->of_node, "aspeed,external-nodes", 1); - if (node) { - map = syscon_node_to_regmap(node->parent); - of_node_put(node); + if (np) { + if (!of_device_is_compatible(np->parent, "aspeed,ast2400-lpc-v2") && + !of_device_is_compatible(np->parent, "aspeed,ast2500-lpc-v2") && + !of_device_is_compatible(np->parent, "aspeed,ast2600-lpc-v2")) + return ERR_PTR(-ENODEV); + + map = syscon_node_to_regmap(np->parent); + of_node_put(np); if (IS_ERR(map)) return map; } else diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig index 9a4f66ae8070..43d9f1884cd3 100644 --- a/drivers/pwm/Kconfig +++ b/drivers/pwm/Kconfig @@ -423,6 +423,15 @@ config PWM_PXA To compile this driver as a module, choose M here: the module will be called pwm-pxa. +config PWM_RASPBERRYPI_POE + tristate "Raspberry Pi Firwmware PoE Hat PWM support" + # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only + # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE. + depends on RASPBERRYPI_FIRMWARE || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE) + help + Enable Raspberry Pi firmware controller PWM bus used to control the + official RPI PoE hat + config PWM_RCAR tristate "Renesas R-Car PWM support" depends on ARCH_RENESAS || COMPILE_TEST diff --git a/drivers/pwm/Makefile b/drivers/pwm/Makefile index 6374d3b1d6f3..211db810c439 100644 --- a/drivers/pwm/Makefile +++ b/drivers/pwm/Makefile @@ -38,6 +38,7 @@ obj-$(CONFIG_PWM_MXS) += pwm-mxs.o obj-$(CONFIG_PWM_OMAP_DMTIMER) += pwm-omap-dmtimer.o obj-$(CONFIG_PWM_PCA9685) += pwm-pca9685.o obj-$(CONFIG_PWM_PXA) += pwm-pxa.o +obj-$(CONFIG_PWM_RASPBERRYPI_POE) += pwm-raspberrypi-poe.o obj-$(CONFIG_PWM_RCAR) += pwm-rcar.o obj-$(CONFIG_PWM_RENESAS_TPU) += pwm-renesas-tpu.o obj-$(CONFIG_PWM_ROCKCHIP) += pwm-rockchip.o diff --git a/drivers/pwm/pwm-raspberrypi-poe.c b/drivers/pwm/pwm-raspberrypi-poe.c new file mode 100644 index 000000000000..043fc32e8be8 --- /dev/null +++ b/drivers/pwm/pwm-raspberrypi-poe.c @@ -0,0 +1,206 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright 2021 Nicolas Saenz Julienne <nsaenzjulienne@suse.de> + * For more information on Raspberry Pi's PoE hat see: + * https://www.raspberrypi.org/products/poe-hat/ + * + * Limitations: + * - No disable bit, so a disabled PWM is simulated by duty_cycle 0 + * - Only normal polarity + * - Fixed 12.5 kHz period + * + * The current period is completed when HW is reconfigured. + */ + +#include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/pwm.h> + +#include <soc/bcm2835/raspberrypi-firmware.h> +#include <dt-bindings/pwm/raspberrypi,firmware-poe-pwm.h> + +#define RPI_PWM_MAX_DUTY 255 +#define RPI_PWM_PERIOD_NS 80000 /* 12.5 kHz */ + +#define RPI_PWM_CUR_DUTY_REG 0x0 + +struct raspberrypi_pwm { + struct rpi_firmware *firmware; + struct pwm_chip chip; + unsigned int duty_cycle; +}; + +struct raspberrypi_pwm_prop { + __le32 reg; + __le32 val; + __le32 ret; +} __packed; + +static inline +struct raspberrypi_pwm *raspberrypi_pwm_from_chip(struct pwm_chip *chip) +{ + return container_of(chip, struct raspberrypi_pwm, chip); +} + +static int raspberrypi_pwm_set_property(struct rpi_firmware *firmware, + u32 reg, u32 val) +{ + struct raspberrypi_pwm_prop msg = { + .reg = cpu_to_le32(reg), + .val = cpu_to_le32(val), + }; + int ret; + + ret = rpi_firmware_property(firmware, RPI_FIRMWARE_SET_POE_HAT_VAL, + &msg, sizeof(msg)); + if (ret) + return ret; + if (msg.ret) + return -EIO; + + return 0; +} + +static int raspberrypi_pwm_get_property(struct rpi_firmware *firmware, + u32 reg, u32 *val) +{ + struct raspberrypi_pwm_prop msg = { + .reg = reg + }; + int ret; + + ret = rpi_firmware_property(firmware, RPI_FIRMWARE_GET_POE_HAT_VAL, + &msg, sizeof(msg)); + if (ret) + return ret; + if (msg.ret) + return -EIO; + + *val = le32_to_cpu(msg.val); + + return 0; +} + +static void raspberrypi_pwm_get_state(struct pwm_chip *chip, + struct pwm_device *pwm, + struct pwm_state *state) +{ + struct raspberrypi_pwm *rpipwm = raspberrypi_pwm_from_chip(chip); + + state->period = RPI_PWM_PERIOD_NS; + state->duty_cycle = DIV_ROUND_UP(rpipwm->duty_cycle * RPI_PWM_PERIOD_NS, + RPI_PWM_MAX_DUTY); + state->enabled = !!(rpipwm->duty_cycle); + state->polarity = PWM_POLARITY_NORMAL; +} + +static int raspberrypi_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, + const struct pwm_state *state) +{ + struct raspberrypi_pwm *rpipwm = raspberrypi_pwm_from_chip(chip); + unsigned int duty_cycle; + int ret; + + if (state->period < RPI_PWM_PERIOD_NS || + state->polarity != PWM_POLARITY_NORMAL) + return -EINVAL; + + if (!state->enabled) + duty_cycle = 0; + else if (state->duty_cycle < RPI_PWM_PERIOD_NS) + duty_cycle = DIV_ROUND_DOWN_ULL(state->duty_cycle * RPI_PWM_MAX_DUTY, + RPI_PWM_PERIOD_NS); + else + duty_cycle = RPI_PWM_MAX_DUTY; + + if (duty_cycle == rpipwm->duty_cycle) + return 0; + + ret = raspberrypi_pwm_set_property(rpipwm->firmware, RPI_PWM_CUR_DUTY_REG, + duty_cycle); + if (ret) { + dev_err(chip->dev, "Failed to set duty cycle: %pe\n", + ERR_PTR(ret)); + return ret; + } + + rpipwm->duty_cycle = duty_cycle; + + return 0; +} + +static const struct pwm_ops raspberrypi_pwm_ops = { + .get_state = raspberrypi_pwm_get_state, + .apply = raspberrypi_pwm_apply, + .owner = THIS_MODULE, +}; + +static int raspberrypi_pwm_probe(struct platform_device *pdev) +{ + struct device_node *firmware_node; + struct device *dev = &pdev->dev; + struct rpi_firmware *firmware; + struct raspberrypi_pwm *rpipwm; + int ret; + + firmware_node = of_get_parent(dev->of_node); + if (!firmware_node) { + dev_err(dev, "Missing firmware node\n"); + return -ENOENT; + } + + firmware = devm_rpi_firmware_get(&pdev->dev, firmware_node); + of_node_put(firmware_node); + if (!firmware) + return dev_err_probe(dev, -EPROBE_DEFER, + "Failed to get firmware handle\n"); + + rpipwm = devm_kzalloc(&pdev->dev, sizeof(*rpipwm), GFP_KERNEL); + if (!rpipwm) + return -ENOMEM; + + rpipwm->firmware = firmware; + rpipwm->chip.dev = dev; + rpipwm->chip.ops = &raspberrypi_pwm_ops; + rpipwm->chip.base = -1; + rpipwm->chip.npwm = RASPBERRYPI_FIRMWARE_PWM_NUM; + + platform_set_drvdata(pdev, rpipwm); + + ret = raspberrypi_pwm_get_property(rpipwm->firmware, RPI_PWM_CUR_DUTY_REG, + &rpipwm->duty_cycle); + if (ret) { + dev_err(dev, "Failed to get duty cycle: %pe\n", ERR_PTR(ret)); + return ret; + } + + return pwmchip_add(&rpipwm->chip); +} + +static int raspberrypi_pwm_remove(struct platform_device *pdev) +{ + struct raspberrypi_pwm *rpipwm = platform_get_drvdata(pdev); + + return pwmchip_remove(&rpipwm->chip); +} + +static const struct of_device_id raspberrypi_pwm_of_match[] = { + { .compatible = "raspberrypi,firmware-poe-pwm", }, + { } +}; +MODULE_DEVICE_TABLE(of, raspberrypi_pwm_of_match); + +static struct platform_driver raspberrypi_pwm_driver = { + .driver = { + .name = "raspberrypi-poe-pwm", + .of_match_table = raspberrypi_pwm_of_match, + }, + .probe = raspberrypi_pwm_probe, + .remove = raspberrypi_pwm_remove, +}; +module_platform_driver(raspberrypi_pwm_driver); + +MODULE_AUTHOR("Nicolas Saenz Julienne <nsaenzjulienne@suse.de>"); +MODULE_DESCRIPTION("Raspberry Pi Firmware Based PWM Bus Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/regulator/scmi-regulator.c b/drivers/regulator/scmi-regulator.c index 0e8b3caa8146..a38343f8c843 100644 --- a/drivers/regulator/scmi-regulator.c +++ b/drivers/regulator/scmi-regulator.c @@ -2,7 +2,7 @@ // // System Control and Management Interface (SCMI) based regulator driver // -// Copyright (C) 2020 ARM Ltd. +// Copyright (C) 2020-2021 ARM Ltd. // // Implements a regulator driver on top of the SCMI Voltage Protocol. // @@ -33,9 +33,12 @@ #include <linux/slab.h> #include <linux/types.h> +static const struct scmi_voltage_proto_ops *voltage_ops; + struct scmi_regulator { u32 id; struct scmi_device *sdev; + struct scmi_protocol_handle *ph; struct regulator_dev *rdev; struct device_node *of_node; struct regulator_desc desc; @@ -50,19 +53,17 @@ struct scmi_regulator_info { static int scmi_reg_enable(struct regulator_dev *rdev) { struct scmi_regulator *sreg = rdev_get_drvdata(rdev); - const struct scmi_handle *handle = sreg->sdev->handle; - return handle->voltage_ops->config_set(handle, sreg->id, - SCMI_VOLTAGE_ARCH_STATE_ON); + return voltage_ops->config_set(sreg->ph, sreg->id, + SCMI_VOLTAGE_ARCH_STATE_ON); } static int scmi_reg_disable(struct regulator_dev *rdev) { struct scmi_regulator *sreg = rdev_get_drvdata(rdev); - const struct scmi_handle *handle = sreg->sdev->handle; - return handle->voltage_ops->config_set(handle, sreg->id, - SCMI_VOLTAGE_ARCH_STATE_OFF); + return voltage_ops->config_set(sreg->ph, sreg->id, + SCMI_VOLTAGE_ARCH_STATE_OFF); } static int scmi_reg_is_enabled(struct regulator_dev *rdev) @@ -70,10 +71,8 @@ static int scmi_reg_is_enabled(struct regulator_dev *rdev) int ret; u32 config; struct scmi_regulator *sreg = rdev_get_drvdata(rdev); - const struct scmi_handle *handle = sreg->sdev->handle; - ret = handle->voltage_ops->config_get(handle, sreg->id, - &config); + ret = voltage_ops->config_get(sreg->ph, sreg->id, &config); if (ret) { dev_err(&sreg->sdev->dev, "Error %d reading regulator %s status.\n", @@ -89,9 +88,8 @@ static int scmi_reg_get_voltage_sel(struct regulator_dev *rdev) int ret; s32 volt_uV; struct scmi_regulator *sreg = rdev_get_drvdata(rdev); - const struct scmi_handle *handle = sreg->sdev->handle; - ret = handle->voltage_ops->level_get(handle, sreg->id, &volt_uV); + ret = voltage_ops->level_get(sreg->ph, sreg->id, &volt_uV); if (ret) return ret; @@ -103,13 +101,12 @@ static int scmi_reg_set_voltage_sel(struct regulator_dev *rdev, { s32 volt_uV; struct scmi_regulator *sreg = rdev_get_drvdata(rdev); - const struct scmi_handle *handle = sreg->sdev->handle; volt_uV = sreg->desc.ops->list_voltage(rdev, selector); if (volt_uV <= 0) return -EINVAL; - return handle->voltage_ops->level_set(handle, sreg->id, 0x0, volt_uV); + return voltage_ops->level_set(sreg->ph, sreg->id, 0x0, volt_uV); } static const struct regulator_ops scmi_reg_fixed_ops = { @@ -204,11 +201,10 @@ scmi_config_discrete_regulator_mappings(struct scmi_regulator *sreg, static int scmi_regulator_common_init(struct scmi_regulator *sreg) { int ret; - const struct scmi_handle *handle = sreg->sdev->handle; struct device *dev = &sreg->sdev->dev; const struct scmi_voltage_info *vinfo; - vinfo = handle->voltage_ops->info_get(handle, sreg->id); + vinfo = voltage_ops->info_get(sreg->ph, sreg->id); if (!vinfo) { dev_warn(dev, "Failure to get voltage domain %d\n", sreg->id); @@ -257,6 +253,7 @@ static int scmi_regulator_common_init(struct scmi_regulator *sreg) } static int process_scmi_regulator_of_node(struct scmi_device *sdev, + struct scmi_protocol_handle *ph, struct device_node *np, struct scmi_regulator_info *rinfo) { @@ -284,6 +281,7 @@ static int process_scmi_regulator_of_node(struct scmi_device *sdev, rinfo->sregv[dom]->id = dom; rinfo->sregv[dom]->sdev = sdev; + rinfo->sregv[dom]->ph = ph; /* get hold of good nodes */ of_node_get(np); @@ -302,11 +300,17 @@ static int scmi_regulator_probe(struct scmi_device *sdev) struct device_node *np, *child; const struct scmi_handle *handle = sdev->handle; struct scmi_regulator_info *rinfo; + struct scmi_protocol_handle *ph; - if (!handle || !handle->voltage_ops) + if (!handle) return -ENODEV; - num_doms = handle->voltage_ops->num_domains_get(handle); + voltage_ops = handle->devm_protocol_get(sdev, + SCMI_PROTOCOL_VOLTAGE, &ph); + if (IS_ERR(voltage_ops)) + return PTR_ERR(voltage_ops); + + num_doms = voltage_ops->num_domains_get(ph); if (num_doms <= 0) { if (!num_doms) { dev_err(&sdev->dev, @@ -341,7 +345,7 @@ static int scmi_regulator_probe(struct scmi_device *sdev) */ np = of_find_node_by_name(handle->dev->of_node, "regulators"); for_each_child_of_node(np, child) { - ret = process_scmi_regulator_of_node(sdev, child, rinfo); + ret = process_scmi_regulator_of_node(sdev, ph, child, rinfo); /* abort on any mem issue */ if (ret == -ENOMEM) return ret; diff --git a/drivers/reset/Kconfig b/drivers/reset/Kconfig index 4171c6f76385..7043c7f6dcf0 100644 --- a/drivers/reset/Kconfig +++ b/drivers/reset/Kconfig @@ -183,7 +183,7 @@ config RESET_SCMI config RESET_SIMPLE bool "Simple Reset Controller Driver" if COMPILE_TEST - default ARCH_AGILEX || ARCH_ASPEED || ARCH_BCM4908 || ARCH_BITMAIN || ARCH_REALTEK || ARCH_STM32 || ARCH_STRATIX10 || ARCH_SUNXI || ARC + default ARCH_ASPEED || ARCH_BCM4908 || ARCH_BITMAIN || ARCH_REALTEK || ARCH_STM32 || (ARCH_INTEL_SOCFPGA && ARM64) || ARCH_SUNXI || ARC help This enables a simple reset controller driver for reset lines that that can be asserted and deasserted by toggling bits in a contiguous, @@ -205,8 +205,8 @@ config RESET_STM32MP157 This enables the RCC reset controller driver for STM32 MPUs. config RESET_SOCFPGA - bool "SoCFPGA Reset Driver" if COMPILE_TEST && !ARCH_SOCFPGA - default ARCH_SOCFPGA + bool "SoCFPGA Reset Driver" if COMPILE_TEST && (!ARM || !ARCH_INTEL_SOCFPGA) + default ARM && ARCH_INTEL_SOCFPGA select RESET_SIMPLE help This enables the reset driver for the SoCFPGA ARMv7 platforms. This diff --git a/drivers/reset/reset-raspberrypi.c b/drivers/reset/reset-raspberrypi.c index 02f59c06f69b..fa23db554bcf 100644 --- a/drivers/reset/reset-raspberrypi.c +++ b/drivers/reset/reset-raspberrypi.c @@ -82,7 +82,7 @@ static int rpi_reset_probe(struct platform_device *pdev) return -ENOENT; } - fw = rpi_firmware_get(np); + fw = devm_rpi_firmware_get(&pdev->dev, np); of_node_put(np); if (!fw) return -EPROBE_DEFER; diff --git a/drivers/reset/reset-scmi.c b/drivers/reset/reset-scmi.c index 8d3a858e3b19..4335811e0cfa 100644 --- a/drivers/reset/reset-scmi.c +++ b/drivers/reset/reset-scmi.c @@ -2,7 +2,7 @@ /* * ARM System Control and Management Interface (ARM SCMI) reset driver * - * Copyright (C) 2019 ARM Ltd. + * Copyright (C) 2019-2021 ARM Ltd. */ #include <linux/module.h> @@ -11,18 +11,20 @@ #include <linux/reset-controller.h> #include <linux/scmi_protocol.h> +static const struct scmi_reset_proto_ops *reset_ops; + /** * struct scmi_reset_data - reset controller information structure * @rcdev: reset controller entity - * @handle: ARM SCMI handle used for communication with system controller + * @ph: ARM SCMI protocol handle used for communication with system controller */ struct scmi_reset_data { struct reset_controller_dev rcdev; - const struct scmi_handle *handle; + const struct scmi_protocol_handle *ph; }; #define to_scmi_reset_data(p) container_of((p), struct scmi_reset_data, rcdev) -#define to_scmi_handle(p) (to_scmi_reset_data(p)->handle) +#define to_scmi_handle(p) (to_scmi_reset_data(p)->ph) /** * scmi_reset_assert() - assert device reset @@ -37,9 +39,9 @@ struct scmi_reset_data { static int scmi_reset_assert(struct reset_controller_dev *rcdev, unsigned long id) { - const struct scmi_handle *handle = to_scmi_handle(rcdev); + const struct scmi_protocol_handle *ph = to_scmi_handle(rcdev); - return handle->reset_ops->assert(handle, id); + return reset_ops->assert(ph, id); } /** @@ -55,9 +57,9 @@ scmi_reset_assert(struct reset_controller_dev *rcdev, unsigned long id) static int scmi_reset_deassert(struct reset_controller_dev *rcdev, unsigned long id) { - const struct scmi_handle *handle = to_scmi_handle(rcdev); + const struct scmi_protocol_handle *ph = to_scmi_handle(rcdev); - return handle->reset_ops->deassert(handle, id); + return reset_ops->deassert(ph, id); } /** @@ -73,9 +75,9 @@ scmi_reset_deassert(struct reset_controller_dev *rcdev, unsigned long id) static int scmi_reset_reset(struct reset_controller_dev *rcdev, unsigned long id) { - const struct scmi_handle *handle = to_scmi_handle(rcdev); + const struct scmi_protocol_handle *ph = to_scmi_handle(rcdev); - return handle->reset_ops->reset(handle, id); + return reset_ops->reset(ph, id); } static const struct reset_control_ops scmi_reset_ops = { @@ -90,10 +92,15 @@ static int scmi_reset_probe(struct scmi_device *sdev) struct device *dev = &sdev->dev; struct device_node *np = dev->of_node; const struct scmi_handle *handle = sdev->handle; + struct scmi_protocol_handle *ph; - if (!handle || !handle->reset_ops) + if (!handle) return -ENODEV; + reset_ops = handle->devm_protocol_get(sdev, SCMI_PROTOCOL_RESET, &ph); + if (IS_ERR(reset_ops)) + return PTR_ERR(reset_ops); + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; @@ -101,8 +108,8 @@ static int scmi_reset_probe(struct scmi_device *sdev) data->rcdev.ops = &scmi_reset_ops; data->rcdev.owner = THIS_MODULE; data->rcdev.of_node = np; - data->rcdev.nr_resets = handle->reset_ops->num_domains_get(handle); - data->handle = handle; + data->rcdev.nr_resets = reset_ops->num_domains_get(ph); + data->ph = ph; return devm_reset_controller_register(dev, &data->rcdev); } diff --git a/drivers/soc/aspeed/aspeed-lpc-ctrl.c b/drivers/soc/aspeed/aspeed-lpc-ctrl.c index 439bcd6b8c4a..c557ffd0992c 100644 --- a/drivers/soc/aspeed/aspeed-lpc-ctrl.c +++ b/drivers/soc/aspeed/aspeed-lpc-ctrl.c @@ -18,15 +18,15 @@ #define DEVICE_NAME "aspeed-lpc-ctrl" -#define HICR5 0x0 +#define HICR5 0x80 #define HICR5_ENL2H BIT(8) #define HICR5_ENFWH BIT(10) -#define HICR6 0x4 +#define HICR6 0x84 #define SW_FWH2AHB BIT(17) -#define HICR7 0x8 -#define HICR8 0xc +#define HICR7 0x88 +#define HICR8 0x8c struct aspeed_lpc_ctrl { struct miscdevice miscdev; @@ -215,6 +215,7 @@ static int aspeed_lpc_ctrl_probe(struct platform_device *pdev) struct device_node *node; struct resource resm; struct device *dev; + struct device_node *np; int rc; dev = &pdev->dev; @@ -270,8 +271,15 @@ static int aspeed_lpc_ctrl_probe(struct platform_device *pdev) } } - lpc_ctrl->regmap = syscon_node_to_regmap( - pdev->dev.parent->of_node); + np = pdev->dev.parent->of_node; + if (!of_device_is_compatible(np, "aspeed,ast2400-lpc-v2") && + !of_device_is_compatible(np, "aspeed,ast2500-lpc-v2") && + !of_device_is_compatible(np, "aspeed,ast2600-lpc-v2")) { + dev_err(dev, "unsupported LPC device binding\n"); + return -ENODEV; + } + + lpc_ctrl->regmap = syscon_node_to_regmap(np); if (IS_ERR(lpc_ctrl->regmap)) { dev_err(dev, "Couldn't get regmap\n"); return -ENODEV; diff --git a/drivers/soc/aspeed/aspeed-lpc-snoop.c b/drivers/soc/aspeed/aspeed-lpc-snoop.c index 20acac6342ef..eceeaf8dfbeb 100644 --- a/drivers/soc/aspeed/aspeed-lpc-snoop.c +++ b/drivers/soc/aspeed/aspeed-lpc-snoop.c @@ -29,26 +29,25 @@ #define NUM_SNOOP_CHANNELS 2 #define SNOOP_FIFO_SIZE 2048 -#define HICR5 0x0 +#define HICR5 0x80 #define HICR5_EN_SNP0W BIT(0) #define HICR5_ENINT_SNP0W BIT(1) #define HICR5_EN_SNP1W BIT(2) #define HICR5_ENINT_SNP1W BIT(3) - -#define HICR6 0x4 +#define HICR6 0x84 #define HICR6_STR_SNP0W BIT(0) #define HICR6_STR_SNP1W BIT(1) -#define SNPWADR 0x10 +#define SNPWADR 0x90 #define SNPWADR_CH0_MASK GENMASK(15, 0) #define SNPWADR_CH0_SHIFT 0 #define SNPWADR_CH1_MASK GENMASK(31, 16) #define SNPWADR_CH1_SHIFT 16 -#define SNPWDR 0x14 +#define SNPWDR 0x94 #define SNPWDR_CH0_MASK GENMASK(7, 0) #define SNPWDR_CH0_SHIFT 0 #define SNPWDR_CH1_MASK GENMASK(15, 8) #define SNPWDR_CH1_SHIFT 8 -#define HICRB 0x80 +#define HICRB 0x100 #define HICRB_ENSNP0D BIT(14) #define HICRB_ENSNP1D BIT(15) @@ -95,8 +94,10 @@ static ssize_t snoop_file_read(struct file *file, char __user *buffer, return -EINTR; } ret = kfifo_to_user(&chan->fifo, buffer, count, &copied); + if (ret) + return ret; - return ret ? ret : copied; + return copied; } static __poll_t snoop_file_poll(struct file *file, @@ -260,6 +261,7 @@ static int aspeed_lpc_snoop_probe(struct platform_device *pdev) { struct aspeed_lpc_snoop *lpc_snoop; struct device *dev; + struct device_node *np; u32 port; int rc; @@ -269,8 +271,15 @@ static int aspeed_lpc_snoop_probe(struct platform_device *pdev) if (!lpc_snoop) return -ENOMEM; - lpc_snoop->regmap = syscon_node_to_regmap( - pdev->dev.parent->of_node); + np = pdev->dev.parent->of_node; + if (!of_device_is_compatible(np, "aspeed,ast2400-lpc-v2") && + !of_device_is_compatible(np, "aspeed,ast2500-lpc-v2") && + !of_device_is_compatible(np, "aspeed,ast2600-lpc-v2")) { + dev_err(dev, "unsupported LPC device binding\n"); + return -ENODEV; + } + + lpc_snoop->regmap = syscon_node_to_regmap(np); if (IS_ERR(lpc_snoop->regmap)) { dev_err(dev, "Couldn't get regmap\n"); return -ENODEV; diff --git a/drivers/soc/bcm/bcm63xx/bcm-pmb.c b/drivers/soc/bcm/bcm63xx/bcm-pmb.c index c223023dc64f..774465c119be 100644 --- a/drivers/soc/bcm/bcm63xx/bcm-pmb.c +++ b/drivers/soc/bcm/bcm63xx/bcm-pmb.c @@ -209,6 +209,28 @@ static int bcm_pmb_power_on_device(struct bcm_pmb *pmb, int bus, u8 device) return err; } +static int bcm_pmb_power_on_sata(struct bcm_pmb *pmb, int bus, u8 device) +{ + int err; + + err = bcm_pmb_power_on_zone(pmb, bus, device, 0); + if (err) + return err; + + /* Does not apply to the BCM963158 */ + err = bcm_pmb_bpcm_write(pmb, bus, device, BPCM_MISC_CONTROL, 0); + if (err) + return err; + + err = bcm_pmb_bpcm_write(pmb, bus, device, BPCM_SR_CONTROL, 0xffffffff); + if (err) + return err; + + err = bcm_pmb_bpcm_write(pmb, bus, device, BPCM_SR_CONTROL, 0); + + return err; +} + static int bcm_pmb_power_on(struct generic_pm_domain *genpd) { struct bcm_pmb_pm_domain *pd = container_of(genpd, struct bcm_pmb_pm_domain, genpd); @@ -222,6 +244,8 @@ static int bcm_pmb_power_on(struct generic_pm_domain *genpd) return bcm_pmb_power_on_zone(pmb, data->bus, data->device, 0); case BCM_PMB_HOST_USB: return bcm_pmb_power_on_device(pmb, data->bus, data->device); + case BCM_PMB_SATA: + return bcm_pmb_power_on_sata(pmb, data->bus, data->device); default: dev_err(pmb->dev, "unsupported device id: %d\n", data->id); return -EINVAL; @@ -317,8 +341,14 @@ static const struct bcm_pmb_pd_data bcm_pmb_bcm4908_data[] = { { }, }; +static const struct bcm_pmb_pd_data bcm_pmb_bcm63138_data[] = { + { .name = "sata", .id = BCM_PMB_SATA, .bus = 0, .device = 3, }, + { }, +}; + static const struct of_device_id bcm_pmb_of_match[] = { { .compatible = "brcm,bcm4908-pmb", .data = &bcm_pmb_bcm4908_data, }, + { .compatible = "brcm,bcm63138-pmb", .data = &bcm_pmb_bcm63138_data, }, { }, }; diff --git a/drivers/soc/bcm/raspberrypi-power.c b/drivers/soc/bcm/raspberrypi-power.c index 5d1aacdd84ef..068715d6e66d 100644 --- a/drivers/soc/bcm/raspberrypi-power.c +++ b/drivers/soc/bcm/raspberrypi-power.c @@ -177,7 +177,7 @@ static int rpi_power_probe(struct platform_device *pdev) return -ENODEV; } - rpi_domains->fw = rpi_firmware_get(fw_np); + rpi_domains->fw = devm_rpi_firmware_get(&pdev->dev, fw_np); of_node_put(fw_np); if (!rpi_domains->fw) return -EPROBE_DEFER; diff --git a/drivers/soc/fsl/guts.c b/drivers/soc/fsl/guts.c index 34810f9bb2ee..d5e9a5f2c087 100644 --- a/drivers/soc/fsl/guts.c +++ b/drivers/soc/fsl/guts.c @@ -117,7 +117,7 @@ static const struct fsl_soc_die_attr *fsl_soc_die_match( if (matches->svr == (svr & matches->mask)) return matches; matches++; - }; + } return NULL; } diff --git a/drivers/soc/fsl/qbman/bman.c b/drivers/soc/fsl/qbman/bman.c index c5dd026fe889..6cc1847e534a 100644 --- a/drivers/soc/fsl/qbman/bman.c +++ b/drivers/soc/fsl/qbman/bman.c @@ -709,7 +709,6 @@ struct bman_pool *bman_new_pool(void) return pool; err: bm_release_bpid(bpid); - kfree(pool); return NULL; } EXPORT_SYMBOL(bman_new_pool); diff --git a/drivers/soc/fsl/qbman/bman_portal.c b/drivers/soc/fsl/qbman/bman_portal.c index 923c44063a9a..acda8a5637c5 100644 --- a/drivers/soc/fsl/qbman/bman_portal.c +++ b/drivers/soc/fsl/qbman/bman_portal.c @@ -160,7 +160,7 @@ static int bman_portal_probe(struct platform_device *pdev) __bman_portals_probed = 1; /* unassigned portal, skip init */ spin_unlock(&bman_lock); - return 0; + goto check_cleanup; } cpumask_set_cpu(cpu, &portal_cpus); @@ -176,6 +176,7 @@ static int bman_portal_probe(struct platform_device *pdev) if (!cpu_online(cpu)) bman_offline_cpu(cpu); +check_cleanup: if (__bman_portals_probed == 1 && bman_requires_cleanup()) { /* * BMan wasn't reset prior to boot (Kexec for example) diff --git a/drivers/soc/fsl/qbman/qman_portal.c b/drivers/soc/fsl/qbman/qman_portal.c index 5685b6706893..4274bd1b0f99 100644 --- a/drivers/soc/fsl/qbman/qman_portal.c +++ b/drivers/soc/fsl/qbman/qman_portal.c @@ -302,7 +302,7 @@ static int qman_portal_probe(struct platform_device *pdev) __qman_portals_probed = 1; /* unassigned portal, skip init */ spin_unlock(&qman_lock); - return 0; + goto check_cleanup; } cpumask_set_cpu(cpu, &portal_cpus); @@ -323,6 +323,7 @@ static int qman_portal_probe(struct platform_device *pdev) if (!cpu_online(cpu)) qman_offline_cpu(cpu); +check_cleanup: if (__qman_portals_probed == 1 && qman_requires_cleanup()) { /* * QMan wasn't reset prior to boot (Kexec for example) diff --git a/drivers/soc/fsl/qe/gpio.c b/drivers/soc/fsl/qe/gpio.c index ed75198ed254..99f7de43c3c6 100644 --- a/drivers/soc/fsl/qe/gpio.c +++ b/drivers/soc/fsl/qe/gpio.c @@ -41,13 +41,13 @@ static void qe_gpio_save_regs(struct of_mm_gpio_chip *mm_gc) container_of(mm_gc, struct qe_gpio_chip, mm_gc); struct qe_pio_regs __iomem *regs = mm_gc->regs; - qe_gc->cpdata = qe_ioread32be(®s->cpdata); + qe_gc->cpdata = ioread32be(®s->cpdata); qe_gc->saved_regs.cpdata = qe_gc->cpdata; - qe_gc->saved_regs.cpdir1 = qe_ioread32be(®s->cpdir1); - qe_gc->saved_regs.cpdir2 = qe_ioread32be(®s->cpdir2); - qe_gc->saved_regs.cppar1 = qe_ioread32be(®s->cppar1); - qe_gc->saved_regs.cppar2 = qe_ioread32be(®s->cppar2); - qe_gc->saved_regs.cpodr = qe_ioread32be(®s->cpodr); + qe_gc->saved_regs.cpdir1 = ioread32be(®s->cpdir1); + qe_gc->saved_regs.cpdir2 = ioread32be(®s->cpdir2); + qe_gc->saved_regs.cppar1 = ioread32be(®s->cppar1); + qe_gc->saved_regs.cppar2 = ioread32be(®s->cppar2); + qe_gc->saved_regs.cpodr = ioread32be(®s->cpodr); } static int qe_gpio_get(struct gpio_chip *gc, unsigned int gpio) @@ -56,7 +56,7 @@ static int qe_gpio_get(struct gpio_chip *gc, unsigned int gpio) struct qe_pio_regs __iomem *regs = mm_gc->regs; u32 pin_mask = 1 << (QE_PIO_PINS - 1 - gpio); - return !!(qe_ioread32be(®s->cpdata) & pin_mask); + return !!(ioread32be(®s->cpdata) & pin_mask); } static void qe_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val) @@ -74,7 +74,7 @@ static void qe_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val) else qe_gc->cpdata &= ~pin_mask; - qe_iowrite32be(qe_gc->cpdata, ®s->cpdata); + iowrite32be(qe_gc->cpdata, ®s->cpdata); spin_unlock_irqrestore(&qe_gc->lock, flags); } @@ -101,7 +101,7 @@ static void qe_gpio_set_multiple(struct gpio_chip *gc, } } - qe_iowrite32be(qe_gc->cpdata, ®s->cpdata); + iowrite32be(qe_gc->cpdata, ®s->cpdata); spin_unlock_irqrestore(&qe_gc->lock, flags); } @@ -269,7 +269,7 @@ void qe_pin_set_dedicated(struct qe_pin *qe_pin) else qe_gc->cpdata &= ~mask1; - qe_iowrite32be(qe_gc->cpdata, ®s->cpdata); + iowrite32be(qe_gc->cpdata, ®s->cpdata); qe_clrsetbits_be32(®s->cpodr, mask1, sregs->cpodr & mask1); spin_unlock_irqrestore(&qe_gc->lock, flags); diff --git a/drivers/soc/fsl/qe/qe.c b/drivers/soc/fsl/qe/qe.c index 2df20d6f85fa..4d38c80f8be8 100644 --- a/drivers/soc/fsl/qe/qe.c +++ b/drivers/soc/fsl/qe/qe.c @@ -109,7 +109,7 @@ int qe_issue_cmd(u32 cmd, u32 device, u8 mcn_protocol, u32 cmd_input) spin_lock_irqsave(&qe_lock, flags); if (cmd == QE_RESET) { - qe_iowrite32be((u32)(cmd | QE_CR_FLG), &qe_immr->cp.cecr); + iowrite32be((u32)(cmd | QE_CR_FLG), &qe_immr->cp.cecr); } else { if (cmd == QE_ASSIGN_PAGE) { /* Here device is the SNUM, not sub-block */ @@ -126,13 +126,13 @@ int qe_issue_cmd(u32 cmd, u32 device, u8 mcn_protocol, u32 cmd_input) mcn_shift = QE_CR_MCN_NORMAL_SHIFT; } - qe_iowrite32be(cmd_input, &qe_immr->cp.cecdr); - qe_iowrite32be((cmd | QE_CR_FLG | ((u32)device << dev_shift) | (u32)mcn_protocol << mcn_shift), + iowrite32be(cmd_input, &qe_immr->cp.cecdr); + iowrite32be((cmd | QE_CR_FLG | ((u32)device << dev_shift) | (u32)mcn_protocol << mcn_shift), &qe_immr->cp.cecr); } /* wait for the QE_CR_FLG to clear */ - ret = readx_poll_timeout_atomic(qe_ioread32be, &qe_immr->cp.cecr, val, + ret = readx_poll_timeout_atomic(ioread32be, &qe_immr->cp.cecr, val, (val & QE_CR_FLG) == 0, 0, 100); /* On timeout, ret is -ETIMEDOUT, otherwise it will be 0. */ spin_unlock_irqrestore(&qe_lock, flags); @@ -231,7 +231,7 @@ int qe_setbrg(enum qe_clock brg, unsigned int rate, unsigned int multiplier) tempval = ((divisor - 1) << QE_BRGC_DIVISOR_SHIFT) | QE_BRGC_ENABLE | div16; - qe_iowrite32be(tempval, &qe_immr->brg.brgc[brg - QE_BRG1]); + iowrite32be(tempval, &qe_immr->brg.brgc[brg - QE_BRG1]); return 0; } @@ -375,9 +375,9 @@ static int qe_sdma_init(void) return -ENOMEM; } - qe_iowrite32be((u32)sdma_buf_offset & QE_SDEBCR_BA_MASK, + iowrite32be((u32)sdma_buf_offset & QE_SDEBCR_BA_MASK, &sdma->sdebcr); - qe_iowrite32be((QE_SDMR_GLB_1_MSK | (0x1 << QE_SDMR_CEN_SHIFT)), + iowrite32be((QE_SDMR_GLB_1_MSK | (0x1 << QE_SDMR_CEN_SHIFT)), &sdma->sdmr); return 0; @@ -416,14 +416,14 @@ static void qe_upload_microcode(const void *base, "uploading microcode '%s'\n", ucode->id); /* Use auto-increment */ - qe_iowrite32be(be32_to_cpu(ucode->iram_offset) | QE_IRAM_IADD_AIE | QE_IRAM_IADD_BADDR, + iowrite32be(be32_to_cpu(ucode->iram_offset) | QE_IRAM_IADD_AIE | QE_IRAM_IADD_BADDR, &qe_immr->iram.iadd); for (i = 0; i < be32_to_cpu(ucode->count); i++) - qe_iowrite32be(be32_to_cpu(code[i]), &qe_immr->iram.idata); + iowrite32be(be32_to_cpu(code[i]), &qe_immr->iram.idata); /* Set I-RAM Ready Register */ - qe_iowrite32be(QE_IRAM_READY, &qe_immr->iram.iready); + iowrite32be(QE_IRAM_READY, &qe_immr->iram.iready); } /* @@ -542,12 +542,12 @@ int qe_upload_firmware(const struct qe_firmware *firmware) u32 trap = be32_to_cpu(ucode->traps[j]); if (trap) - qe_iowrite32be(trap, + iowrite32be(trap, &qe_immr->rsp[i].tibcr[j]); } /* Enable traps */ - qe_iowrite32be(be32_to_cpu(ucode->eccr), + iowrite32be(be32_to_cpu(ucode->eccr), &qe_immr->rsp[i].eccr); } diff --git a/drivers/soc/fsl/qe/qe_common.c b/drivers/soc/fsl/qe/qe_common.c index 654e9246ce6b..a0cb8e746879 100644 --- a/drivers/soc/fsl/qe/qe_common.c +++ b/drivers/soc/fsl/qe/qe_common.c @@ -26,7 +26,7 @@ #include <soc/fsl/qe/qe.h> static struct gen_pool *muram_pool; -static spinlock_t cpm_muram_lock; +static DEFINE_SPINLOCK(cpm_muram_lock); static void __iomem *muram_vbase; static phys_addr_t muram_pbase; @@ -54,7 +54,6 @@ int cpm_muram_init(void) if (muram_pbase) return 0; - spin_lock_init(&cpm_muram_lock); np = of_find_compatible_node(NULL, NULL, "fsl,cpm-muram-data"); if (!np) { /* try legacy bindings */ diff --git a/drivers/soc/fsl/qe/qe_ic.c b/drivers/soc/fsl/qe/qe_ic.c index 0390af999900..3f711c1a0996 100644 --- a/drivers/soc/fsl/qe/qe_ic.c +++ b/drivers/soc/fsl/qe/qe_ic.c @@ -222,13 +222,13 @@ static struct qe_ic_info qe_ic_info[] = { static inline u32 qe_ic_read(__be32 __iomem *base, unsigned int reg) { - return qe_ioread32be(base + (reg >> 2)); + return ioread32be(base + (reg >> 2)); } static inline void qe_ic_write(__be32 __iomem *base, unsigned int reg, u32 value) { - qe_iowrite32be(value, base + (reg >> 2)); + iowrite32be(value, base + (reg >> 2)); } static inline struct qe_ic *qe_ic_from_irq(unsigned int virq) diff --git a/drivers/soc/fsl/qe/qe_io.c b/drivers/soc/fsl/qe/qe_io.c index 11ea08e97db7..e277c827bdf3 100644 --- a/drivers/soc/fsl/qe/qe_io.c +++ b/drivers/soc/fsl/qe/qe_io.c @@ -54,16 +54,16 @@ void __par_io_config_pin(struct qe_pio_regs __iomem *par_io, u8 pin, int dir, pin_mask1bit = (u32) (1 << (QE_PIO_PINS - (pin + 1))); /* Set open drain, if required */ - tmp_val = qe_ioread32be(&par_io->cpodr); + tmp_val = ioread32be(&par_io->cpodr); if (open_drain) - qe_iowrite32be(pin_mask1bit | tmp_val, &par_io->cpodr); + iowrite32be(pin_mask1bit | tmp_val, &par_io->cpodr); else - qe_iowrite32be(~pin_mask1bit & tmp_val, &par_io->cpodr); + iowrite32be(~pin_mask1bit & tmp_val, &par_io->cpodr); /* define direction */ tmp_val = (pin > (QE_PIO_PINS / 2) - 1) ? - qe_ioread32be(&par_io->cpdir2) : - qe_ioread32be(&par_io->cpdir1); + ioread32be(&par_io->cpdir2) : + ioread32be(&par_io->cpdir1); /* get all bits mask for 2 bit per port */ pin_mask2bits = (u32) (0x3 << (QE_PIO_PINS - @@ -75,30 +75,30 @@ void __par_io_config_pin(struct qe_pio_regs __iomem *par_io, u8 pin, int dir, /* clear and set 2 bits mask */ if (pin > (QE_PIO_PINS / 2) - 1) { - qe_iowrite32be(~pin_mask2bits & tmp_val, &par_io->cpdir2); + iowrite32be(~pin_mask2bits & tmp_val, &par_io->cpdir2); tmp_val &= ~pin_mask2bits; - qe_iowrite32be(new_mask2bits | tmp_val, &par_io->cpdir2); + iowrite32be(new_mask2bits | tmp_val, &par_io->cpdir2); } else { - qe_iowrite32be(~pin_mask2bits & tmp_val, &par_io->cpdir1); + iowrite32be(~pin_mask2bits & tmp_val, &par_io->cpdir1); tmp_val &= ~pin_mask2bits; - qe_iowrite32be(new_mask2bits | tmp_val, &par_io->cpdir1); + iowrite32be(new_mask2bits | tmp_val, &par_io->cpdir1); } /* define pin assignment */ tmp_val = (pin > (QE_PIO_PINS / 2) - 1) ? - qe_ioread32be(&par_io->cppar2) : - qe_ioread32be(&par_io->cppar1); + ioread32be(&par_io->cppar2) : + ioread32be(&par_io->cppar1); new_mask2bits = (u32) (assignment << (QE_PIO_PINS - (pin % (QE_PIO_PINS / 2) + 1) * 2)); /* clear and set 2 bits mask */ if (pin > (QE_PIO_PINS / 2) - 1) { - qe_iowrite32be(~pin_mask2bits & tmp_val, &par_io->cppar2); + iowrite32be(~pin_mask2bits & tmp_val, &par_io->cppar2); tmp_val &= ~pin_mask2bits; - qe_iowrite32be(new_mask2bits | tmp_val, &par_io->cppar2); + iowrite32be(new_mask2bits | tmp_val, &par_io->cppar2); } else { - qe_iowrite32be(~pin_mask2bits & tmp_val, &par_io->cppar1); + iowrite32be(~pin_mask2bits & tmp_val, &par_io->cppar1); tmp_val &= ~pin_mask2bits; - qe_iowrite32be(new_mask2bits | tmp_val, &par_io->cppar1); + iowrite32be(new_mask2bits | tmp_val, &par_io->cppar1); } } EXPORT_SYMBOL(__par_io_config_pin); @@ -126,12 +126,12 @@ int par_io_data_set(u8 port, u8 pin, u8 val) /* calculate pin location */ pin_mask = (u32) (1 << (QE_PIO_PINS - 1 - pin)); - tmp_val = qe_ioread32be(&par_io[port].cpdata); + tmp_val = ioread32be(&par_io[port].cpdata); if (val == 0) /* clear */ - qe_iowrite32be(~pin_mask & tmp_val, &par_io[port].cpdata); + iowrite32be(~pin_mask & tmp_val, &par_io[port].cpdata); else /* set */ - qe_iowrite32be(pin_mask | tmp_val, &par_io[port].cpdata); + iowrite32be(pin_mask | tmp_val, &par_io[port].cpdata); return 0; } diff --git a/drivers/soc/fsl/qe/ucc_fast.c b/drivers/soc/fsl/qe/ucc_fast.c index ad6193ea4597..53d8aafc9317 100644 --- a/drivers/soc/fsl/qe/ucc_fast.c +++ b/drivers/soc/fsl/qe/ucc_fast.c @@ -29,42 +29,42 @@ void ucc_fast_dump_regs(struct ucc_fast_private * uccf) printk(KERN_INFO "Base address: 0x%p\n", uccf->uf_regs); printk(KERN_INFO "gumr : addr=0x%p, val=0x%08x\n", - &uccf->uf_regs->gumr, qe_ioread32be(&uccf->uf_regs->gumr)); + &uccf->uf_regs->gumr, ioread32be(&uccf->uf_regs->gumr)); printk(KERN_INFO "upsmr : addr=0x%p, val=0x%08x\n", - &uccf->uf_regs->upsmr, qe_ioread32be(&uccf->uf_regs->upsmr)); + &uccf->uf_regs->upsmr, ioread32be(&uccf->uf_regs->upsmr)); printk(KERN_INFO "utodr : addr=0x%p, val=0x%04x\n", - &uccf->uf_regs->utodr, qe_ioread16be(&uccf->uf_regs->utodr)); + &uccf->uf_regs->utodr, ioread16be(&uccf->uf_regs->utodr)); printk(KERN_INFO "udsr : addr=0x%p, val=0x%04x\n", - &uccf->uf_regs->udsr, qe_ioread16be(&uccf->uf_regs->udsr)); + &uccf->uf_regs->udsr, ioread16be(&uccf->uf_regs->udsr)); printk(KERN_INFO "ucce : addr=0x%p, val=0x%08x\n", - &uccf->uf_regs->ucce, qe_ioread32be(&uccf->uf_regs->ucce)); + &uccf->uf_regs->ucce, ioread32be(&uccf->uf_regs->ucce)); printk(KERN_INFO "uccm : addr=0x%p, val=0x%08x\n", - &uccf->uf_regs->uccm, qe_ioread32be(&uccf->uf_regs->uccm)); + &uccf->uf_regs->uccm, ioread32be(&uccf->uf_regs->uccm)); printk(KERN_INFO "uccs : addr=0x%p, val=0x%02x\n", - &uccf->uf_regs->uccs, qe_ioread8(&uccf->uf_regs->uccs)); + &uccf->uf_regs->uccs, ioread8(&uccf->uf_regs->uccs)); printk(KERN_INFO "urfb : addr=0x%p, val=0x%08x\n", - &uccf->uf_regs->urfb, qe_ioread32be(&uccf->uf_regs->urfb)); + &uccf->uf_regs->urfb, ioread32be(&uccf->uf_regs->urfb)); printk(KERN_INFO "urfs : addr=0x%p, val=0x%04x\n", - &uccf->uf_regs->urfs, qe_ioread16be(&uccf->uf_regs->urfs)); + &uccf->uf_regs->urfs, ioread16be(&uccf->uf_regs->urfs)); printk(KERN_INFO "urfet : addr=0x%p, val=0x%04x\n", - &uccf->uf_regs->urfet, qe_ioread16be(&uccf->uf_regs->urfet)); + &uccf->uf_regs->urfet, ioread16be(&uccf->uf_regs->urfet)); printk(KERN_INFO "urfset: addr=0x%p, val=0x%04x\n", &uccf->uf_regs->urfset, - qe_ioread16be(&uccf->uf_regs->urfset)); + ioread16be(&uccf->uf_regs->urfset)); printk(KERN_INFO "utfb : addr=0x%p, val=0x%08x\n", - &uccf->uf_regs->utfb, qe_ioread32be(&uccf->uf_regs->utfb)); + &uccf->uf_regs->utfb, ioread32be(&uccf->uf_regs->utfb)); printk(KERN_INFO "utfs : addr=0x%p, val=0x%04x\n", - &uccf->uf_regs->utfs, qe_ioread16be(&uccf->uf_regs->utfs)); + &uccf->uf_regs->utfs, ioread16be(&uccf->uf_regs->utfs)); printk(KERN_INFO "utfet : addr=0x%p, val=0x%04x\n", - &uccf->uf_regs->utfet, qe_ioread16be(&uccf->uf_regs->utfet)); + &uccf->uf_regs->utfet, ioread16be(&uccf->uf_regs->utfet)); printk(KERN_INFO "utftt : addr=0x%p, val=0x%04x\n", - &uccf->uf_regs->utftt, qe_ioread16be(&uccf->uf_regs->utftt)); + &uccf->uf_regs->utftt, ioread16be(&uccf->uf_regs->utftt)); printk(KERN_INFO "utpt : addr=0x%p, val=0x%04x\n", - &uccf->uf_regs->utpt, qe_ioread16be(&uccf->uf_regs->utpt)); + &uccf->uf_regs->utpt, ioread16be(&uccf->uf_regs->utpt)); printk(KERN_INFO "urtry : addr=0x%p, val=0x%08x\n", - &uccf->uf_regs->urtry, qe_ioread32be(&uccf->uf_regs->urtry)); + &uccf->uf_regs->urtry, ioread32be(&uccf->uf_regs->urtry)); printk(KERN_INFO "guemr : addr=0x%p, val=0x%02x\n", - &uccf->uf_regs->guemr, qe_ioread8(&uccf->uf_regs->guemr)); + &uccf->uf_regs->guemr, ioread8(&uccf->uf_regs->guemr)); } EXPORT_SYMBOL(ucc_fast_dump_regs); @@ -86,7 +86,7 @@ EXPORT_SYMBOL(ucc_fast_get_qe_cr_subblock); void ucc_fast_transmit_on_demand(struct ucc_fast_private * uccf) { - qe_iowrite16be(UCC_FAST_TOD, &uccf->uf_regs->utodr); + iowrite16be(UCC_FAST_TOD, &uccf->uf_regs->utodr); } EXPORT_SYMBOL(ucc_fast_transmit_on_demand); @@ -98,7 +98,7 @@ void ucc_fast_enable(struct ucc_fast_private * uccf, enum comm_dir mode) uf_regs = uccf->uf_regs; /* Enable reception and/or transmission on this UCC. */ - gumr = qe_ioread32be(&uf_regs->gumr); + gumr = ioread32be(&uf_regs->gumr); if (mode & COMM_DIR_TX) { gumr |= UCC_FAST_GUMR_ENT; uccf->enabled_tx = 1; @@ -107,7 +107,7 @@ void ucc_fast_enable(struct ucc_fast_private * uccf, enum comm_dir mode) gumr |= UCC_FAST_GUMR_ENR; uccf->enabled_rx = 1; } - qe_iowrite32be(gumr, &uf_regs->gumr); + iowrite32be(gumr, &uf_regs->gumr); } EXPORT_SYMBOL(ucc_fast_enable); @@ -119,7 +119,7 @@ void ucc_fast_disable(struct ucc_fast_private * uccf, enum comm_dir mode) uf_regs = uccf->uf_regs; /* Disable reception and/or transmission on this UCC. */ - gumr = qe_ioread32be(&uf_regs->gumr); + gumr = ioread32be(&uf_regs->gumr); if (mode & COMM_DIR_TX) { gumr &= ~UCC_FAST_GUMR_ENT; uccf->enabled_tx = 0; @@ -128,7 +128,7 @@ void ucc_fast_disable(struct ucc_fast_private * uccf, enum comm_dir mode) gumr &= ~UCC_FAST_GUMR_ENR; uccf->enabled_rx = 0; } - qe_iowrite32be(gumr, &uf_regs->gumr); + iowrite32be(gumr, &uf_regs->gumr); } EXPORT_SYMBOL(ucc_fast_disable); @@ -262,7 +262,7 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** ucc gumr |= uf_info->tenc; gumr |= uf_info->tcrc; gumr |= uf_info->mode; - qe_iowrite32be(gumr, &uf_regs->gumr); + iowrite32be(gumr, &uf_regs->gumr); /* Allocate memory for Tx Virtual Fifo */ uccf->ucc_fast_tx_virtual_fifo_base_offset = @@ -287,16 +287,16 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** ucc } /* Set Virtual Fifo registers */ - qe_iowrite16be(uf_info->urfs, &uf_regs->urfs); - qe_iowrite16be(uf_info->urfet, &uf_regs->urfet); - qe_iowrite16be(uf_info->urfset, &uf_regs->urfset); - qe_iowrite16be(uf_info->utfs, &uf_regs->utfs); - qe_iowrite16be(uf_info->utfet, &uf_regs->utfet); - qe_iowrite16be(uf_info->utftt, &uf_regs->utftt); + iowrite16be(uf_info->urfs, &uf_regs->urfs); + iowrite16be(uf_info->urfet, &uf_regs->urfet); + iowrite16be(uf_info->urfset, &uf_regs->urfset); + iowrite16be(uf_info->utfs, &uf_regs->utfs); + iowrite16be(uf_info->utfet, &uf_regs->utfet); + iowrite16be(uf_info->utftt, &uf_regs->utftt); /* utfb, urfb are offsets from MURAM base */ - qe_iowrite32be(uccf->ucc_fast_tx_virtual_fifo_base_offset, + iowrite32be(uccf->ucc_fast_tx_virtual_fifo_base_offset, &uf_regs->utfb); - qe_iowrite32be(uccf->ucc_fast_rx_virtual_fifo_base_offset, + iowrite32be(uccf->ucc_fast_rx_virtual_fifo_base_offset, &uf_regs->urfb); /* Mux clocking */ @@ -365,14 +365,14 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** ucc } /* Set interrupt mask register at UCC level. */ - qe_iowrite32be(uf_info->uccm_mask, &uf_regs->uccm); + iowrite32be(uf_info->uccm_mask, &uf_regs->uccm); /* First, clear anything pending at UCC level, * otherwise, old garbage may come through * as soon as the dam is opened. */ /* Writing '1' clears */ - qe_iowrite32be(0xffffffff, &uf_regs->ucce); + iowrite32be(0xffffffff, &uf_regs->ucce); *uccf_ret = uccf; return 0; diff --git a/drivers/soc/fsl/qe/ucc_slow.c b/drivers/soc/fsl/qe/ucc_slow.c index 7e11be41ab62..d5ac1ac0ed3c 100644 --- a/drivers/soc/fsl/qe/ucc_slow.c +++ b/drivers/soc/fsl/qe/ucc_slow.c @@ -78,7 +78,7 @@ void ucc_slow_enable(struct ucc_slow_private * uccs, enum comm_dir mode) us_regs = uccs->us_regs; /* Enable reception and/or transmission on this UCC. */ - gumr_l = qe_ioread32be(&us_regs->gumr_l); + gumr_l = ioread32be(&us_regs->gumr_l); if (mode & COMM_DIR_TX) { gumr_l |= UCC_SLOW_GUMR_L_ENT; uccs->enabled_tx = 1; @@ -87,7 +87,7 @@ void ucc_slow_enable(struct ucc_slow_private * uccs, enum comm_dir mode) gumr_l |= UCC_SLOW_GUMR_L_ENR; uccs->enabled_rx = 1; } - qe_iowrite32be(gumr_l, &us_regs->gumr_l); + iowrite32be(gumr_l, &us_regs->gumr_l); } EXPORT_SYMBOL(ucc_slow_enable); @@ -99,7 +99,7 @@ void ucc_slow_disable(struct ucc_slow_private * uccs, enum comm_dir mode) us_regs = uccs->us_regs; /* Disable reception and/or transmission on this UCC. */ - gumr_l = qe_ioread32be(&us_regs->gumr_l); + gumr_l = ioread32be(&us_regs->gumr_l); if (mode & COMM_DIR_TX) { gumr_l &= ~UCC_SLOW_GUMR_L_ENT; uccs->enabled_tx = 0; @@ -108,7 +108,7 @@ void ucc_slow_disable(struct ucc_slow_private * uccs, enum comm_dir mode) gumr_l &= ~UCC_SLOW_GUMR_L_ENR; uccs->enabled_rx = 0; } - qe_iowrite32be(gumr_l, &us_regs->gumr_l); + iowrite32be(gumr_l, &us_regs->gumr_l); } EXPORT_SYMBOL(ucc_slow_disable); @@ -194,7 +194,7 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc return ret; } - qe_iowrite16be(us_info->max_rx_buf_length, &uccs->us_pram->mrblr); + iowrite16be(us_info->max_rx_buf_length, &uccs->us_pram->mrblr); INIT_LIST_HEAD(&uccs->confQ); @@ -222,27 +222,27 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc bd = uccs->confBd = uccs->tx_bd = qe_muram_addr(uccs->tx_base_offset); for (i = 0; i < us_info->tx_bd_ring_len - 1; i++) { /* clear bd buffer */ - qe_iowrite32be(0, &bd->buf); + iowrite32be(0, &bd->buf); /* set bd status and length */ - qe_iowrite32be(0, (u32 __iomem *)bd); + iowrite32be(0, (u32 __iomem *)bd); bd++; } /* for last BD set Wrap bit */ - qe_iowrite32be(0, &bd->buf); - qe_iowrite32be(T_W, (u32 __iomem *)bd); + iowrite32be(0, &bd->buf); + iowrite32be(T_W, (u32 __iomem *)bd); /* Init Rx bds */ bd = uccs->rx_bd = qe_muram_addr(uccs->rx_base_offset); for (i = 0; i < us_info->rx_bd_ring_len - 1; i++) { /* set bd status and length */ - qe_iowrite32be(0, (u32 __iomem *)bd); + iowrite32be(0, (u32 __iomem *)bd); /* clear bd buffer */ - qe_iowrite32be(0, &bd->buf); + iowrite32be(0, &bd->buf); bd++; } /* for last BD set Wrap bit */ - qe_iowrite32be(R_W, (u32 __iomem *)bd); - qe_iowrite32be(0, &bd->buf); + iowrite32be(R_W, (u32 __iomem *)bd); + iowrite32be(0, &bd->buf); /* Set GUMR (For more details see the hardware spec.). */ /* gumr_h */ @@ -263,7 +263,7 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc gumr |= UCC_SLOW_GUMR_H_TXSY; if (us_info->rtsm) gumr |= UCC_SLOW_GUMR_H_RTSM; - qe_iowrite32be(gumr, &us_regs->gumr_h); + iowrite32be(gumr, &us_regs->gumr_h); /* gumr_l */ gumr = (u32)us_info->tdcr | (u32)us_info->rdcr | (u32)us_info->tenc | @@ -276,18 +276,18 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc gumr |= UCC_SLOW_GUMR_L_TINV; if (us_info->tend) gumr |= UCC_SLOW_GUMR_L_TEND; - qe_iowrite32be(gumr, &us_regs->gumr_l); + iowrite32be(gumr, &us_regs->gumr_l); /* Function code registers */ /* if the data is in cachable memory, the 'global' */ /* in the function code should be set. */ - qe_iowrite8(UCC_BMR_BO_BE, &uccs->us_pram->tbmr); - qe_iowrite8(UCC_BMR_BO_BE, &uccs->us_pram->rbmr); + iowrite8(UCC_BMR_BO_BE, &uccs->us_pram->tbmr); + iowrite8(UCC_BMR_BO_BE, &uccs->us_pram->rbmr); /* rbase, tbase are offsets from MURAM base */ - qe_iowrite16be(uccs->rx_base_offset, &uccs->us_pram->rbase); - qe_iowrite16be(uccs->tx_base_offset, &uccs->us_pram->tbase); + iowrite16be(uccs->rx_base_offset, &uccs->us_pram->rbase); + iowrite16be(uccs->tx_base_offset, &uccs->us_pram->tbase); /* Mux clocking */ /* Grant Support */ @@ -317,14 +317,14 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc } /* Set interrupt mask register at UCC level. */ - qe_iowrite16be(us_info->uccm_mask, &us_regs->uccm); + iowrite16be(us_info->uccm_mask, &us_regs->uccm); /* First, clear anything pending at UCC level, * otherwise, old garbage may come through * as soon as the dam is opened. */ /* Writing '1' clears */ - qe_iowrite16be(0xffff, &us_regs->ucce); + iowrite16be(0xffff, &us_regs->ucce); /* Issue QE Init command */ if (us_info->init_tx && us_info->init_rx) diff --git a/drivers/soc/fsl/rcpm.c b/drivers/soc/fsl/rcpm.c index 4ace28cab314..90d3f4060b0c 100644 --- a/drivers/soc/fsl/rcpm.c +++ b/drivers/soc/fsl/rcpm.c @@ -13,6 +13,7 @@ #include <linux/slab.h> #include <linux/suspend.h> #include <linux/kernel.h> +#include <linux/acpi.h> #define RCPM_WAKEUP_CELL_MAX_SIZE 7 @@ -78,10 +79,20 @@ static int rcpm_pm_prepare(struct device *dev) "fsl,rcpm-wakeup", value, rcpm->wakeup_cells + 1); - /* Wakeup source should refer to current rcpm device */ - if (ret || (np->phandle != value[0])) + if (ret) continue; + /* + * For DT mode, would handle devices with "fsl,rcpm-wakeup" + * pointing to the current RCPM node. + * + * For ACPI mode, currently we assume there is only one + * RCPM controller existing. + */ + if (is_of_node(dev->fwnode)) + if (np->phandle != value[0]) + continue; + /* Property "#fsl,rcpm-wakeup-cells" of rcpm node defines the * number of IPPDEXPCR register cells, and "fsl,rcpm-wakeup" * of wakeup source IP contains an integer array: <phandle to @@ -172,10 +183,19 @@ static const struct of_device_id rcpm_of_match[] = { }; MODULE_DEVICE_TABLE(of, rcpm_of_match); +#ifdef CONFIG_ACPI +static const struct acpi_device_id rcpm_acpi_ids[] = { + {"NXP0015",}, + { } +}; +MODULE_DEVICE_TABLE(acpi, rcpm_acpi_ids); +#endif + static struct platform_driver rcpm_driver = { .driver = { .name = "rcpm", .of_match_table = rcpm_of_match, + .acpi_match_table = ACPI_PTR(rcpm_acpi_ids), .pm = &rcpm_pm_ops, }, .probe = rcpm_probe, diff --git a/drivers/soc/imx/soc-imx.c b/drivers/soc/imx/soc-imx.c index 01bfea1cb64a..0738c0f36792 100644 --- a/drivers/soc/imx/soc-imx.c +++ b/drivers/soc/imx/soc-imx.c @@ -13,6 +13,8 @@ #include <soc/imx/cpu.h> #include <soc/imx/revision.h> +#define IIM_UID 0x820 + #define OCOTP_UID_H 0x420 #define OCOTP_UID_L 0x410 @@ -32,6 +34,7 @@ static int __init imx_soc_device_init(void) u64 soc_uid = 0; u32 val; int ret; + int i; if (of_machine_is_compatible("fsl,ls1021a")) return 0; @@ -68,9 +71,11 @@ static int __init imx_soc_device_init(void) soc_id = "i.MX35"; break; case MXC_CPU_MX51: + ocotp_compat = "fsl,imx51-iim"; soc_id = "i.MX51"; break; case MXC_CPU_MX53: + ocotp_compat = "fsl,imx53-iim"; soc_id = "i.MX53"; break; case MXC_CPU_IMX6SL: @@ -153,6 +158,13 @@ static int __init imx_soc_device_init(void) regmap_read(ocotp, OCOTP_ULP_UID_1, &val); soc_uid <<= 16; soc_uid |= val & 0xffff; + } else if (__mxc_cpu_type == MXC_CPU_MX51 || + __mxc_cpu_type == MXC_CPU_MX53) { + for (i=0; i < 8; i++) { + regmap_read(ocotp, IIM_UID + i*4, &val); + soc_uid <<= 8; + soc_uid |= (val & 0xff); + } } else { regmap_read(ocotp, OCOTP_UID_H, &val); soc_uid = val; diff --git a/drivers/soc/mediatek/mt8167-mmsys.h b/drivers/soc/mediatek/mt8167-mmsys.h new file mode 100644 index 000000000000..2772ef5e3934 --- /dev/null +++ b/drivers/soc/mediatek/mt8167-mmsys.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef __SOC_MEDIATEK_MT8167_MMSYS_H +#define __SOC_MEDIATEK_MT8167_MMSYS_H + +#define MT8167_DISP_REG_CONFIG_DISP_OVL0_MOUT_EN 0x030 +#define MT8167_DISP_REG_CONFIG_DISP_DITHER_MOUT_EN 0x038 +#define MT8167_DISP_REG_CONFIG_DISP_COLOR0_SEL_IN 0x058 +#define MT8167_DISP_REG_CONFIG_DISP_DSI0_SEL_IN 0x064 +#define MT8167_DISP_REG_CONFIG_DISP_RDMA0_SOUT_SEL_IN 0x06c + +#define MT8167_DITHER_MOUT_EN_RDMA0 0x1 +#define MT8167_RDMA0_SOUT_DSI0 0x2 +#define MT8167_DSI0_SEL_IN_RDMA0 0x1 + +static const struct mtk_mmsys_routes mt8167_mmsys_routing_table[] = { + { + DDP_COMPONENT_OVL0, DDP_COMPONENT_COLOR0, + MT8167_DISP_REG_CONFIG_DISP_OVL0_MOUT_EN, OVL0_MOUT_EN_COLOR0, + }, { + DDP_COMPONENT_DITHER, DDP_COMPONENT_RDMA0, + MT8167_DISP_REG_CONFIG_DISP_DITHER_MOUT_EN, MT8167_DITHER_MOUT_EN_RDMA0 + }, { + DDP_COMPONENT_OVL0, DDP_COMPONENT_COLOR0, + MT8167_DISP_REG_CONFIG_DISP_COLOR0_SEL_IN, COLOR0_SEL_IN_OVL0 + }, { + DDP_COMPONENT_RDMA0, DDP_COMPONENT_DSI0, + MT8167_DISP_REG_CONFIG_DISP_DSI0_SEL_IN, MT8167_DSI0_SEL_IN_RDMA0 + }, { + DDP_COMPONENT_RDMA0, DDP_COMPONENT_DSI0, + MT8167_DISP_REG_CONFIG_DISP_RDMA0_SOUT_SEL_IN, MT8167_RDMA0_SOUT_DSI0 + }, +}; + +#endif /* __SOC_MEDIATEK_MT8167_MMSYS_H */ diff --git a/drivers/soc/mediatek/mt8167-pm-domains.h b/drivers/soc/mediatek/mt8167-pm-domains.h index ad0b8dfa0527..15559ddf26e4 100644 --- a/drivers/soc/mediatek/mt8167-pm-domains.h +++ b/drivers/soc/mediatek/mt8167-pm-domains.h @@ -15,6 +15,7 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8167[] = { [MT8167_POWER_DOMAIN_MM] = { + .name = "mm", .sta_mask = PWR_STATUS_DISP, .ctl_offs = SPM_DIS_PWR_CON, .sram_pdn_bits = GENMASK(11, 8), @@ -26,6 +27,7 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8167[] = { .caps = MTK_SCPD_ACTIVE_WAKEUP, }, [MT8167_POWER_DOMAIN_VDEC] = { + .name = "vdec", .sta_mask = PWR_STATUS_VDEC, .ctl_offs = SPM_VDE_PWR_CON, .sram_pdn_bits = GENMASK(8, 8), @@ -33,6 +35,7 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8167[] = { .caps = MTK_SCPD_ACTIVE_WAKEUP, }, [MT8167_POWER_DOMAIN_ISP] = { + .name = "isp", .sta_mask = PWR_STATUS_ISP, .ctl_offs = SPM_ISP_PWR_CON, .sram_pdn_bits = GENMASK(11, 8), @@ -40,6 +43,7 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8167[] = { .caps = MTK_SCPD_ACTIVE_WAKEUP, }, [MT8167_POWER_DOMAIN_MFG_ASYNC] = { + .name = "mfg_async", .sta_mask = MT8167_PWR_STATUS_MFG_ASYNC, .ctl_offs = SPM_MFG_ASYNC_PWR_CON, .sram_pdn_bits = 0, @@ -50,18 +54,21 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8167[] = { }, }, [MT8167_POWER_DOMAIN_MFG_2D] = { + .name = "mfg_2d", .sta_mask = MT8167_PWR_STATUS_MFG_2D, .ctl_offs = SPM_MFG_2D_PWR_CON, .sram_pdn_bits = GENMASK(11, 8), .sram_pdn_ack_bits = GENMASK(15, 12), }, [MT8167_POWER_DOMAIN_MFG] = { + .name = "mfg", .sta_mask = PWR_STATUS_MFG, .ctl_offs = SPM_MFG_PWR_CON, .sram_pdn_bits = GENMASK(11, 8), .sram_pdn_ack_bits = GENMASK(15, 12), }, [MT8167_POWER_DOMAIN_CONN] = { + .name = "conn", .sta_mask = PWR_STATUS_CONN, .ctl_offs = SPM_CONN_PWR_CON, .sram_pdn_bits = GENMASK(8, 8), diff --git a/drivers/soc/mediatek/mt8173-pm-domains.h b/drivers/soc/mediatek/mt8173-pm-domains.h index 3e8ee5dabb43..654c717e5467 100644 --- a/drivers/soc/mediatek/mt8173-pm-domains.h +++ b/drivers/soc/mediatek/mt8173-pm-domains.h @@ -12,24 +12,28 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8173[] = { [MT8173_POWER_DOMAIN_VDEC] = { + .name = "vdec", .sta_mask = PWR_STATUS_VDEC, .ctl_offs = SPM_VDE_PWR_CON, .sram_pdn_bits = GENMASK(11, 8), .sram_pdn_ack_bits = GENMASK(12, 12), }, [MT8173_POWER_DOMAIN_VENC] = { + .name = "venc", .sta_mask = PWR_STATUS_VENC, .ctl_offs = SPM_VEN_PWR_CON, .sram_pdn_bits = GENMASK(11, 8), .sram_pdn_ack_bits = GENMASK(15, 12), }, [MT8173_POWER_DOMAIN_ISP] = { + .name = "isp", .sta_mask = PWR_STATUS_ISP, .ctl_offs = SPM_ISP_PWR_CON, .sram_pdn_bits = GENMASK(11, 8), .sram_pdn_ack_bits = GENMASK(13, 12), }, [MT8173_POWER_DOMAIN_MM] = { + .name = "mm", .sta_mask = PWR_STATUS_DISP, .ctl_offs = SPM_DIS_PWR_CON, .sram_pdn_bits = GENMASK(11, 8), @@ -40,18 +44,21 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8173[] = { }, }, [MT8173_POWER_DOMAIN_VENC_LT] = { + .name = "venc_lt", .sta_mask = PWR_STATUS_VENC_LT, .ctl_offs = SPM_VEN2_PWR_CON, .sram_pdn_bits = GENMASK(11, 8), .sram_pdn_ack_bits = GENMASK(15, 12), }, [MT8173_POWER_DOMAIN_AUDIO] = { + .name = "audio", .sta_mask = PWR_STATUS_AUDIO, .ctl_offs = SPM_AUDIO_PWR_CON, .sram_pdn_bits = GENMASK(11, 8), .sram_pdn_ack_bits = GENMASK(15, 12), }, [MT8173_POWER_DOMAIN_USB] = { + .name = "usb", .sta_mask = PWR_STATUS_USB, .ctl_offs = SPM_USB_PWR_CON, .sram_pdn_bits = GENMASK(11, 8), @@ -59,18 +66,21 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8173[] = { .caps = MTK_SCPD_ACTIVE_WAKEUP, }, [MT8173_POWER_DOMAIN_MFG_ASYNC] = { + .name = "mfg_async", .sta_mask = PWR_STATUS_MFG_ASYNC, .ctl_offs = SPM_MFG_ASYNC_PWR_CON, .sram_pdn_bits = GENMASK(11, 8), .sram_pdn_ack_bits = 0, }, [MT8173_POWER_DOMAIN_MFG_2D] = { + .name = "mfg_2d", .sta_mask = PWR_STATUS_MFG_2D, .ctl_offs = SPM_MFG_2D_PWR_CON, .sram_pdn_bits = GENMASK(11, 8), .sram_pdn_ack_bits = GENMASK(13, 12), }, [MT8173_POWER_DOMAIN_MFG] = { + .name = "mfg", .sta_mask = PWR_STATUS_MFG, .ctl_offs = SPM_MFG_PWR_CON, .sram_pdn_bits = GENMASK(13, 8), diff --git a/drivers/soc/mediatek/mt8183-mmsys.h b/drivers/soc/mediatek/mt8183-mmsys.h new file mode 100644 index 000000000000..579dfc8dc8fc --- /dev/null +++ b/drivers/soc/mediatek/mt8183-mmsys.h @@ -0,0 +1,54 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef __SOC_MEDIATEK_MT8183_MMSYS_H +#define __SOC_MEDIATEK_MT8183_MMSYS_H + +#define MT8183_DISP_OVL0_MOUT_EN 0xf00 +#define MT8183_DISP_OVL0_2L_MOUT_EN 0xf04 +#define MT8183_DISP_OVL1_2L_MOUT_EN 0xf08 +#define MT8183_DISP_DITHER0_MOUT_EN 0xf0c +#define MT8183_DISP_PATH0_SEL_IN 0xf24 +#define MT8183_DISP_DSI0_SEL_IN 0xf2c +#define MT8183_DISP_DPI0_SEL_IN 0xf30 +#define MT8183_DISP_RDMA0_SOUT_SEL_IN 0xf50 +#define MT8183_DISP_RDMA1_SOUT_SEL_IN 0xf54 + +#define MT8183_OVL0_MOUT_EN_OVL0_2L BIT(4) +#define MT8183_OVL0_2L_MOUT_EN_DISP_PATH0 BIT(0) +#define MT8183_OVL1_2L_MOUT_EN_RDMA1 BIT(4) +#define MT8183_DITHER0_MOUT_IN_DSI0 BIT(0) +#define MT8183_DISP_PATH0_SEL_IN_OVL0_2L 0x1 +#define MT8183_DSI0_SEL_IN_RDMA0 0x1 +#define MT8183_DSI0_SEL_IN_RDMA1 0x3 +#define MT8183_DPI0_SEL_IN_RDMA0 0x1 +#define MT8183_DPI0_SEL_IN_RDMA1 0x2 +#define MT8183_RDMA0_SOUT_COLOR0 0x1 +#define MT8183_RDMA1_SOUT_DSI0 0x1 + +static const struct mtk_mmsys_routes mmsys_mt8183_routing_table[] = { + { + DDP_COMPONENT_OVL0, DDP_COMPONENT_OVL_2L0, + MT8183_DISP_OVL0_MOUT_EN, MT8183_OVL0_MOUT_EN_OVL0_2L + }, { + DDP_COMPONENT_OVL_2L0, DDP_COMPONENT_RDMA0, + MT8183_DISP_OVL0_2L_MOUT_EN, MT8183_OVL0_2L_MOUT_EN_DISP_PATH0 + }, { + DDP_COMPONENT_OVL_2L1, DDP_COMPONENT_RDMA1, + MT8183_DISP_OVL1_2L_MOUT_EN, MT8183_OVL1_2L_MOUT_EN_RDMA1 + }, { + DDP_COMPONENT_DITHER, DDP_COMPONENT_DSI0, + MT8183_DISP_DITHER0_MOUT_EN, MT8183_DITHER0_MOUT_IN_DSI0 + }, { + DDP_COMPONENT_OVL_2L0, DDP_COMPONENT_RDMA0, + MT8183_DISP_PATH0_SEL_IN, MT8183_DISP_PATH0_SEL_IN_OVL0_2L + }, { + DDP_COMPONENT_RDMA1, DDP_COMPONENT_DPI0, + MT8183_DISP_DPI0_SEL_IN, MT8183_DPI0_SEL_IN_RDMA1 + }, { + DDP_COMPONENT_RDMA0, DDP_COMPONENT_COLOR0, + MT8183_DISP_RDMA0_SOUT_SEL_IN, MT8183_RDMA0_SOUT_COLOR0 + } +}; + +#endif /* __SOC_MEDIATEK_MT8183_MMSYS_H */ + diff --git a/drivers/soc/mediatek/mt8183-pm-domains.h b/drivers/soc/mediatek/mt8183-pm-domains.h index aa5230e6c12f..98a9940d05fb 100644 --- a/drivers/soc/mediatek/mt8183-pm-domains.h +++ b/drivers/soc/mediatek/mt8183-pm-domains.h @@ -12,12 +12,14 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = { [MT8183_POWER_DOMAIN_AUDIO] = { + .name = "audio", .sta_mask = PWR_STATUS_AUDIO, .ctl_offs = 0x0314, .sram_pdn_bits = GENMASK(11, 8), .sram_pdn_ack_bits = GENMASK(15, 12), }, [MT8183_POWER_DOMAIN_CONN] = { + .name = "conn", .sta_mask = PWR_STATUS_CONN, .ctl_offs = 0x032c, .sram_pdn_bits = 0, @@ -28,12 +30,14 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = { }, }, [MT8183_POWER_DOMAIN_MFG_ASYNC] = { + .name = "mfg_async", .sta_mask = PWR_STATUS_MFG_ASYNC, .ctl_offs = 0x0334, .sram_pdn_bits = 0, .sram_pdn_ack_bits = 0, }, [MT8183_POWER_DOMAIN_MFG] = { + .name = "mfg", .sta_mask = PWR_STATUS_MFG, .ctl_offs = 0x0338, .sram_pdn_bits = GENMASK(8, 8), @@ -41,18 +45,21 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = { .caps = MTK_SCPD_DOMAIN_SUPPLY, }, [MT8183_POWER_DOMAIN_MFG_CORE0] = { + .name = "mfg_core0", .sta_mask = BIT(7), .ctl_offs = 0x034c, .sram_pdn_bits = GENMASK(8, 8), .sram_pdn_ack_bits = GENMASK(12, 12), }, [MT8183_POWER_DOMAIN_MFG_CORE1] = { + .name = "mfg_core1", .sta_mask = BIT(20), .ctl_offs = 0x0310, .sram_pdn_bits = GENMASK(8, 8), .sram_pdn_ack_bits = GENMASK(12, 12), }, [MT8183_POWER_DOMAIN_MFG_2D] = { + .name = "mfg_2d", .sta_mask = PWR_STATUS_MFG_2D, .ctl_offs = 0x0348, .sram_pdn_bits = GENMASK(8, 8), @@ -65,6 +72,7 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = { }, }, [MT8183_POWER_DOMAIN_DISP] = { + .name = "disp", .sta_mask = PWR_STATUS_DISP, .ctl_offs = 0x030c, .sram_pdn_bits = GENMASK(8, 8), @@ -83,6 +91,7 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = { }, }, [MT8183_POWER_DOMAIN_CAM] = { + .name = "cam", .sta_mask = BIT(25), .ctl_offs = 0x0344, .sram_pdn_bits = GENMASK(9, 8), @@ -105,6 +114,7 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = { }, }, [MT8183_POWER_DOMAIN_ISP] = { + .name = "isp", .sta_mask = PWR_STATUS_ISP, .ctl_offs = 0x0308, .sram_pdn_bits = GENMASK(9, 8), @@ -127,6 +137,7 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = { }, }, [MT8183_POWER_DOMAIN_VDEC] = { + .name = "vdec", .sta_mask = BIT(31), .ctl_offs = 0x0300, .sram_pdn_bits = GENMASK(8, 8), @@ -139,6 +150,7 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = { }, }, [MT8183_POWER_DOMAIN_VENC] = { + .name = "venc", .sta_mask = PWR_STATUS_VENC, .ctl_offs = 0x0304, .sram_pdn_bits = GENMASK(11, 8), @@ -151,6 +163,7 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = { }, }, [MT8183_POWER_DOMAIN_VPU_TOP] = { + .name = "vpu_top", .sta_mask = BIT(26), .ctl_offs = 0x0324, .sram_pdn_bits = GENMASK(8, 8), @@ -177,6 +190,7 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = { }, }, [MT8183_POWER_DOMAIN_VPU_CORE0] = { + .name = "vpu_core0", .sta_mask = BIT(27), .ctl_offs = 0x33c, .sram_pdn_bits = GENMASK(11, 8), @@ -194,6 +208,7 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = { .caps = MTK_SCPD_SRAM_ISO, }, [MT8183_POWER_DOMAIN_VPU_CORE1] = { + .name = "vpu_core1", .sta_mask = BIT(28), .ctl_offs = 0x0340, .sram_pdn_bits = GENMASK(11, 8), diff --git a/drivers/soc/mediatek/mt8192-pm-domains.h b/drivers/soc/mediatek/mt8192-pm-domains.h index 0fdf6dc6231f..543dda70de01 100644 --- a/drivers/soc/mediatek/mt8192-pm-domains.h +++ b/drivers/soc/mediatek/mt8192-pm-domains.h @@ -12,6 +12,7 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = { [MT8192_POWER_DOMAIN_AUDIO] = { + .name = "audio", .sta_mask = BIT(21), .ctl_offs = 0x0354, .sram_pdn_bits = GENMASK(8, 8), @@ -24,6 +25,7 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = { }, }, [MT8192_POWER_DOMAIN_CONN] = { + .name = "conn", .sta_mask = PWR_STATUS_CONN, .ctl_offs = 0x0304, .sram_pdn_bits = 0, @@ -45,12 +47,14 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = { .caps = MTK_SCPD_KEEP_DEFAULT_OFF, }, [MT8192_POWER_DOMAIN_MFG0] = { + .name = "mfg0", .sta_mask = BIT(2), .ctl_offs = 0x0308, .sram_pdn_bits = GENMASK(8, 8), .sram_pdn_ack_bits = GENMASK(12, 12), }, [MT8192_POWER_DOMAIN_MFG1] = { + .name = "mfg1", .sta_mask = BIT(3), .ctl_offs = 0x030c, .sram_pdn_bits = GENMASK(8, 8), @@ -75,36 +79,42 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = { }, }, [MT8192_POWER_DOMAIN_MFG2] = { + .name = "mfg2", .sta_mask = BIT(4), .ctl_offs = 0x0310, .sram_pdn_bits = GENMASK(8, 8), .sram_pdn_ack_bits = GENMASK(12, 12), }, [MT8192_POWER_DOMAIN_MFG3] = { + .name = "mfg3", .sta_mask = BIT(5), .ctl_offs = 0x0314, .sram_pdn_bits = GENMASK(8, 8), .sram_pdn_ack_bits = GENMASK(12, 12), }, [MT8192_POWER_DOMAIN_MFG4] = { + .name = "mfg4", .sta_mask = BIT(6), .ctl_offs = 0x0318, .sram_pdn_bits = GENMASK(8, 8), .sram_pdn_ack_bits = GENMASK(12, 12), }, [MT8192_POWER_DOMAIN_MFG5] = { + .name = "mfg5", .sta_mask = BIT(7), .ctl_offs = 0x031c, .sram_pdn_bits = GENMASK(8, 8), .sram_pdn_ack_bits = GENMASK(12, 12), }, [MT8192_POWER_DOMAIN_MFG6] = { + .name = "mfg6", .sta_mask = BIT(8), .ctl_offs = 0x0320, .sram_pdn_bits = GENMASK(8, 8), .sram_pdn_ack_bits = GENMASK(12, 12), }, [MT8192_POWER_DOMAIN_DISP] = { + .name = "disp", .sta_mask = BIT(20), .ctl_offs = 0x0350, .sram_pdn_bits = GENMASK(8, 8), @@ -133,6 +143,7 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = { }, }, [MT8192_POWER_DOMAIN_IPE] = { + .name = "ipe", .sta_mask = BIT(14), .ctl_offs = 0x0338, .sram_pdn_bits = GENMASK(8, 8), @@ -149,6 +160,7 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = { }, }, [MT8192_POWER_DOMAIN_ISP] = { + .name = "isp", .sta_mask = BIT(12), .ctl_offs = 0x0330, .sram_pdn_bits = GENMASK(8, 8), @@ -165,6 +177,7 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = { }, }, [MT8192_POWER_DOMAIN_ISP2] = { + .name = "isp2", .sta_mask = BIT(13), .ctl_offs = 0x0334, .sram_pdn_bits = GENMASK(8, 8), @@ -181,6 +194,7 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = { }, }, [MT8192_POWER_DOMAIN_MDP] = { + .name = "mdp", .sta_mask = BIT(19), .ctl_offs = 0x034c, .sram_pdn_bits = GENMASK(8, 8), @@ -197,6 +211,7 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = { }, }, [MT8192_POWER_DOMAIN_VENC] = { + .name = "venc", .sta_mask = BIT(17), .ctl_offs = 0x0344, .sram_pdn_bits = GENMASK(8, 8), @@ -213,6 +228,7 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = { }, }, [MT8192_POWER_DOMAIN_VDEC] = { + .name = "vdec", .sta_mask = BIT(15), .ctl_offs = 0x033c, .sram_pdn_bits = GENMASK(8, 8), @@ -229,12 +245,14 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = { }, }, [MT8192_POWER_DOMAIN_VDEC2] = { + .name = "vdec2", .sta_mask = BIT(16), .ctl_offs = 0x0340, .sram_pdn_bits = GENMASK(8, 8), .sram_pdn_ack_bits = GENMASK(12, 12), }, [MT8192_POWER_DOMAIN_CAM] = { + .name = "cam", .sta_mask = BIT(23), .ctl_offs = 0x035c, .sram_pdn_bits = GENMASK(8, 8), @@ -263,18 +281,21 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = { }, }, [MT8192_POWER_DOMAIN_CAM_RAWA] = { + .name = "cam_rawa", .sta_mask = BIT(24), .ctl_offs = 0x0360, .sram_pdn_bits = GENMASK(8, 8), .sram_pdn_ack_bits = GENMASK(12, 12), }, [MT8192_POWER_DOMAIN_CAM_RAWB] = { + .name = "cam_rawb", .sta_mask = BIT(25), .ctl_offs = 0x0364, .sram_pdn_bits = GENMASK(8, 8), .sram_pdn_ack_bits = GENMASK(12, 12), }, [MT8192_POWER_DOMAIN_CAM_RAWC] = { + .name = "cam_rawc", .sta_mask = BIT(26), .ctl_offs = 0x0368, .sram_pdn_bits = GENMASK(8, 8), diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c index 18f93979e14a..080660ef11bf 100644 --- a/drivers/soc/mediatek/mtk-mmsys.c +++ b/drivers/soc/mediatek/mtk-mmsys.c @@ -10,79 +10,20 @@ #include <linux/platform_device.h> #include <linux/soc/mediatek/mtk-mmsys.h> -#define DISP_REG_CONFIG_DISP_OVL0_MOUT_EN 0x040 -#define DISP_REG_CONFIG_DISP_OVL1_MOUT_EN 0x044 -#define DISP_REG_CONFIG_DISP_OD_MOUT_EN 0x048 -#define DISP_REG_CONFIG_DISP_GAMMA_MOUT_EN 0x04c -#define DISP_REG_CONFIG_DISP_UFOE_MOUT_EN 0x050 -#define DISP_REG_CONFIG_DISP_COLOR0_SEL_IN 0x084 -#define DISP_REG_CONFIG_DISP_COLOR1_SEL_IN 0x088 -#define DISP_REG_CONFIG_DSIE_SEL_IN 0x0a4 -#define DISP_REG_CONFIG_DSIO_SEL_IN 0x0a8 -#define DISP_REG_CONFIG_DPI_SEL_IN 0x0ac -#define DISP_REG_CONFIG_DISP_RDMA2_SOUT 0x0b8 -#define DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN 0x0c4 -#define DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN 0x0c8 -#define DISP_REG_CONFIG_MMSYS_CG_CON0 0x100 - -#define DISP_REG_CONFIG_DISP_OVL_MOUT_EN 0x030 -#define DISP_REG_CONFIG_OUT_SEL 0x04c -#define DISP_REG_CONFIG_DSI_SEL 0x050 -#define DISP_REG_CONFIG_DPI_SEL 0x064 - -#define OVL0_MOUT_EN_COLOR0 0x1 -#define OD_MOUT_EN_RDMA0 0x1 -#define OD1_MOUT_EN_RDMA1 BIT(16) -#define UFOE_MOUT_EN_DSI0 0x1 -#define COLOR0_SEL_IN_OVL0 0x1 -#define OVL1_MOUT_EN_COLOR1 0x1 -#define GAMMA_MOUT_EN_RDMA1 0x1 -#define RDMA0_SOUT_DPI0 0x2 -#define RDMA0_SOUT_DPI1 0x3 -#define RDMA0_SOUT_DSI1 0x1 -#define RDMA0_SOUT_DSI2 0x4 -#define RDMA0_SOUT_DSI3 0x5 -#define RDMA1_SOUT_DPI0 0x2 -#define RDMA1_SOUT_DPI1 0x3 -#define RDMA1_SOUT_DSI1 0x1 -#define RDMA1_SOUT_DSI2 0x4 -#define RDMA1_SOUT_DSI3 0x5 -#define RDMA2_SOUT_DPI0 0x2 -#define RDMA2_SOUT_DPI1 0x3 -#define RDMA2_SOUT_DSI1 0x1 -#define RDMA2_SOUT_DSI2 0x4 -#define RDMA2_SOUT_DSI3 0x5 -#define DPI0_SEL_IN_RDMA1 0x1 -#define DPI0_SEL_IN_RDMA2 0x3 -#define DPI1_SEL_IN_RDMA1 (0x1 << 8) -#define DPI1_SEL_IN_RDMA2 (0x3 << 8) -#define DSI0_SEL_IN_RDMA1 0x1 -#define DSI0_SEL_IN_RDMA2 0x4 -#define DSI1_SEL_IN_RDMA1 0x1 -#define DSI1_SEL_IN_RDMA2 0x4 -#define DSI2_SEL_IN_RDMA1 (0x1 << 16) -#define DSI2_SEL_IN_RDMA2 (0x4 << 16) -#define DSI3_SEL_IN_RDMA1 (0x1 << 16) -#define DSI3_SEL_IN_RDMA2 (0x4 << 16) -#define COLOR1_SEL_IN_OVL1 0x1 - -#define OVL_MOUT_EN_RDMA 0x1 -#define BLS_TO_DSI_RDMA1_TO_DPI1 0x8 -#define BLS_TO_DPI_RDMA1_TO_DSI 0x2 -#define DSI_SEL_IN_BLS 0x0 -#define DPI_SEL_IN_BLS 0x0 -#define DSI_SEL_IN_RDMA 0x1 - -struct mtk_mmsys_driver_data { - const char *clk_driver; -}; +#include "mtk-mmsys.h" +#include "mt8167-mmsys.h" +#include "mt8183-mmsys.h" static const struct mtk_mmsys_driver_data mt2701_mmsys_driver_data = { .clk_driver = "clk-mt2701-mm", + .routes = mmsys_default_routing_table, + .num_routes = ARRAY_SIZE(mmsys_default_routing_table), }; static const struct mtk_mmsys_driver_data mt2712_mmsys_driver_data = { .clk_driver = "clk-mt2712-mm", + .routes = mmsys_default_routing_table, + .num_routes = ARRAY_SIZE(mmsys_default_routing_table), }; static const struct mtk_mmsys_driver_data mt6779_mmsys_driver_data = { @@ -93,188 +34,43 @@ static const struct mtk_mmsys_driver_data mt6797_mmsys_driver_data = { .clk_driver = "clk-mt6797-mm", }; +static const struct mtk_mmsys_driver_data mt8167_mmsys_driver_data = { + .clk_driver = "clk-mt8167-mm", + .routes = mt8167_mmsys_routing_table, + .num_routes = ARRAY_SIZE(mt8167_mmsys_routing_table), +}; + static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data = { .clk_driver = "clk-mt8173-mm", + .routes = mmsys_default_routing_table, + .num_routes = ARRAY_SIZE(mmsys_default_routing_table), }; static const struct mtk_mmsys_driver_data mt8183_mmsys_driver_data = { .clk_driver = "clk-mt8183-mm", + .routes = mmsys_mt8183_routing_table, + .num_routes = ARRAY_SIZE(mmsys_mt8183_routing_table), }; -static unsigned int mtk_mmsys_ddp_mout_en(enum mtk_ddp_comp_id cur, - enum mtk_ddp_comp_id next, - unsigned int *addr) -{ - unsigned int value; - - if (cur == DDP_COMPONENT_OVL0 && next == DDP_COMPONENT_COLOR0) { - *addr = DISP_REG_CONFIG_DISP_OVL0_MOUT_EN; - value = OVL0_MOUT_EN_COLOR0; - } else if (cur == DDP_COMPONENT_OVL0 && next == DDP_COMPONENT_RDMA0) { - *addr = DISP_REG_CONFIG_DISP_OVL_MOUT_EN; - value = OVL_MOUT_EN_RDMA; - } else if (cur == DDP_COMPONENT_OD0 && next == DDP_COMPONENT_RDMA0) { - *addr = DISP_REG_CONFIG_DISP_OD_MOUT_EN; - value = OD_MOUT_EN_RDMA0; - } else if (cur == DDP_COMPONENT_UFOE && next == DDP_COMPONENT_DSI0) { - *addr = DISP_REG_CONFIG_DISP_UFOE_MOUT_EN; - value = UFOE_MOUT_EN_DSI0; - } else if (cur == DDP_COMPONENT_OVL1 && next == DDP_COMPONENT_COLOR1) { - *addr = DISP_REG_CONFIG_DISP_OVL1_MOUT_EN; - value = OVL1_MOUT_EN_COLOR1; - } else if (cur == DDP_COMPONENT_GAMMA && next == DDP_COMPONENT_RDMA1) { - *addr = DISP_REG_CONFIG_DISP_GAMMA_MOUT_EN; - value = GAMMA_MOUT_EN_RDMA1; - } else if (cur == DDP_COMPONENT_OD1 && next == DDP_COMPONENT_RDMA1) { - *addr = DISP_REG_CONFIG_DISP_OD_MOUT_EN; - value = OD1_MOUT_EN_RDMA1; - } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DPI0) { - *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN; - value = RDMA0_SOUT_DPI0; - } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DPI1) { - *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN; - value = RDMA0_SOUT_DPI1; - } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DSI1) { - *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN; - value = RDMA0_SOUT_DSI1; - } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DSI2) { - *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN; - value = RDMA0_SOUT_DSI2; - } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DSI3) { - *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN; - value = RDMA0_SOUT_DSI3; - } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI1) { - *addr = DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN; - value = RDMA1_SOUT_DSI1; - } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI2) { - *addr = DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN; - value = RDMA1_SOUT_DSI2; - } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI3) { - *addr = DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN; - value = RDMA1_SOUT_DSI3; - } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI0) { - *addr = DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN; - value = RDMA1_SOUT_DPI0; - } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI1) { - *addr = DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN; - value = RDMA1_SOUT_DPI1; - } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DPI0) { - *addr = DISP_REG_CONFIG_DISP_RDMA2_SOUT; - value = RDMA2_SOUT_DPI0; - } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DPI1) { - *addr = DISP_REG_CONFIG_DISP_RDMA2_SOUT; - value = RDMA2_SOUT_DPI1; - } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI1) { - *addr = DISP_REG_CONFIG_DISP_RDMA2_SOUT; - value = RDMA2_SOUT_DSI1; - } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI2) { - *addr = DISP_REG_CONFIG_DISP_RDMA2_SOUT; - value = RDMA2_SOUT_DSI2; - } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI3) { - *addr = DISP_REG_CONFIG_DISP_RDMA2_SOUT; - value = RDMA2_SOUT_DSI3; - } else { - value = 0; - } - - return value; -} - -static unsigned int mtk_mmsys_ddp_sel_in(enum mtk_ddp_comp_id cur, - enum mtk_ddp_comp_id next, - unsigned int *addr) -{ - unsigned int value; - - if (cur == DDP_COMPONENT_OVL0 && next == DDP_COMPONENT_COLOR0) { - *addr = DISP_REG_CONFIG_DISP_COLOR0_SEL_IN; - value = COLOR0_SEL_IN_OVL0; - } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI0) { - *addr = DISP_REG_CONFIG_DPI_SEL_IN; - value = DPI0_SEL_IN_RDMA1; - } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI1) { - *addr = DISP_REG_CONFIG_DPI_SEL_IN; - value = DPI1_SEL_IN_RDMA1; - } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI0) { - *addr = DISP_REG_CONFIG_DSIE_SEL_IN; - value = DSI0_SEL_IN_RDMA1; - } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI1) { - *addr = DISP_REG_CONFIG_DSIO_SEL_IN; - value = DSI1_SEL_IN_RDMA1; - } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI2) { - *addr = DISP_REG_CONFIG_DSIE_SEL_IN; - value = DSI2_SEL_IN_RDMA1; - } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI3) { - *addr = DISP_REG_CONFIG_DSIO_SEL_IN; - value = DSI3_SEL_IN_RDMA1; - } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DPI0) { - *addr = DISP_REG_CONFIG_DPI_SEL_IN; - value = DPI0_SEL_IN_RDMA2; - } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DPI1) { - *addr = DISP_REG_CONFIG_DPI_SEL_IN; - value = DPI1_SEL_IN_RDMA2; - } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI0) { - *addr = DISP_REG_CONFIG_DSIE_SEL_IN; - value = DSI0_SEL_IN_RDMA2; - } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI1) { - *addr = DISP_REG_CONFIG_DSIO_SEL_IN; - value = DSI1_SEL_IN_RDMA2; - } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI2) { - *addr = DISP_REG_CONFIG_DSIE_SEL_IN; - value = DSI2_SEL_IN_RDMA2; - } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI3) { - *addr = DISP_REG_CONFIG_DSIE_SEL_IN; - value = DSI3_SEL_IN_RDMA2; - } else if (cur == DDP_COMPONENT_OVL1 && next == DDP_COMPONENT_COLOR1) { - *addr = DISP_REG_CONFIG_DISP_COLOR1_SEL_IN; - value = COLOR1_SEL_IN_OVL1; - } else if (cur == DDP_COMPONENT_BLS && next == DDP_COMPONENT_DSI0) { - *addr = DISP_REG_CONFIG_DSI_SEL; - value = DSI_SEL_IN_BLS; - } else { - value = 0; - } - - return value; -} - -static void mtk_mmsys_ddp_sout_sel(void __iomem *config_regs, - enum mtk_ddp_comp_id cur, - enum mtk_ddp_comp_id next) -{ - if (cur == DDP_COMPONENT_BLS && next == DDP_COMPONENT_DSI0) { - writel_relaxed(BLS_TO_DSI_RDMA1_TO_DPI1, - config_regs + DISP_REG_CONFIG_OUT_SEL); - } else if (cur == DDP_COMPONENT_BLS && next == DDP_COMPONENT_DPI0) { - writel_relaxed(BLS_TO_DPI_RDMA1_TO_DSI, - config_regs + DISP_REG_CONFIG_OUT_SEL); - writel_relaxed(DSI_SEL_IN_RDMA, - config_regs + DISP_REG_CONFIG_DSI_SEL); - writel_relaxed(DPI_SEL_IN_BLS, - config_regs + DISP_REG_CONFIG_DPI_SEL); - } -} +struct mtk_mmsys { + void __iomem *regs; + const struct mtk_mmsys_driver_data *data; +}; void mtk_mmsys_ddp_connect(struct device *dev, enum mtk_ddp_comp_id cur, enum mtk_ddp_comp_id next) { - void __iomem *config_regs = dev_get_drvdata(dev); - unsigned int addr, value, reg; - - value = mtk_mmsys_ddp_mout_en(cur, next, &addr); - if (value) { - reg = readl_relaxed(config_regs + addr) | value; - writel_relaxed(reg, config_regs + addr); - } - - mtk_mmsys_ddp_sout_sel(config_regs, cur, next); - - value = mtk_mmsys_ddp_sel_in(cur, next, &addr); - if (value) { - reg = readl_relaxed(config_regs + addr) | value; - writel_relaxed(reg, config_regs + addr); - } + struct mtk_mmsys *mmsys = dev_get_drvdata(dev); + const struct mtk_mmsys_routes *routes = mmsys->data->routes; + u32 reg; + int i; + + for (i = 0; i < mmsys->data->num_routes; i++) + if (cur == routes[i].from_comp && next == routes[i].to_comp) { + reg = readl_relaxed(mmsys->regs + routes[i].addr) | routes[i].val; + writel_relaxed(reg, mmsys->regs + routes[i].addr); + } } EXPORT_SYMBOL_GPL(mtk_mmsys_ddp_connect); @@ -282,44 +78,42 @@ void mtk_mmsys_ddp_disconnect(struct device *dev, enum mtk_ddp_comp_id cur, enum mtk_ddp_comp_id next) { - void __iomem *config_regs = dev_get_drvdata(dev); - unsigned int addr, value, reg; - - value = mtk_mmsys_ddp_mout_en(cur, next, &addr); - if (value) { - reg = readl_relaxed(config_regs + addr) & ~value; - writel_relaxed(reg, config_regs + addr); - } - - value = mtk_mmsys_ddp_sel_in(cur, next, &addr); - if (value) { - reg = readl_relaxed(config_regs + addr) & ~value; - writel_relaxed(reg, config_regs + addr); - } + struct mtk_mmsys *mmsys = dev_get_drvdata(dev); + const struct mtk_mmsys_routes *routes = mmsys->data->routes; + u32 reg; + int i; + + for (i = 0; i < mmsys->data->num_routes; i++) + if (cur == routes[i].from_comp && next == routes[i].to_comp) { + reg = readl_relaxed(mmsys->regs + routes[i].addr) & ~routes[i].val; + writel_relaxed(reg, mmsys->regs + routes[i].addr); + } } EXPORT_SYMBOL_GPL(mtk_mmsys_ddp_disconnect); static int mtk_mmsys_probe(struct platform_device *pdev) { - const struct mtk_mmsys_driver_data *data; struct device *dev = &pdev->dev; struct platform_device *clks; struct platform_device *drm; - void __iomem *config_regs; + struct mtk_mmsys *mmsys; int ret; - config_regs = devm_platform_ioremap_resource(pdev, 0); - if (IS_ERR(config_regs)) { - ret = PTR_ERR(config_regs); + mmsys = devm_kzalloc(dev, sizeof(*mmsys), GFP_KERNEL); + if (!mmsys) + return -ENOMEM; + + mmsys->regs = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(mmsys->regs)) { + ret = PTR_ERR(mmsys->regs); dev_err(dev, "Failed to ioremap mmsys registers: %d\n", ret); return ret; } - platform_set_drvdata(pdev, config_regs); - - data = of_device_get_match_data(&pdev->dev); + mmsys->data = of_device_get_match_data(&pdev->dev); + platform_set_drvdata(pdev, mmsys); - clks = platform_device_register_data(&pdev->dev, data->clk_driver, + clks = platform_device_register_data(&pdev->dev, mmsys->data->clk_driver, PLATFORM_DEVID_AUTO, NULL, 0); if (IS_ERR(clks)) return PTR_ERR(clks); @@ -352,6 +146,10 @@ static const struct of_device_id of_match_mtk_mmsys[] = { .data = &mt6797_mmsys_driver_data, }, { + .compatible = "mediatek,mt8167-mmsys", + .data = &mt8167_mmsys_driver_data, + }, + { .compatible = "mediatek,mt8173-mmsys", .data = &mt8173_mmsys_driver_data, }, diff --git a/drivers/soc/mediatek/mtk-mmsys.h b/drivers/soc/mediatek/mtk-mmsys.h new file mode 100644 index 000000000000..a760a34e6eca --- /dev/null +++ b/drivers/soc/mediatek/mtk-mmsys.h @@ -0,0 +1,215 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef __SOC_MEDIATEK_MTK_MMSYS_H +#define __SOC_MEDIATEK_MTK_MMSYS_H + +#define DISP_REG_CONFIG_DISP_OVL0_MOUT_EN 0x040 +#define DISP_REG_CONFIG_DISP_OVL1_MOUT_EN 0x044 +#define DISP_REG_CONFIG_DISP_OD_MOUT_EN 0x048 +#define DISP_REG_CONFIG_DISP_GAMMA_MOUT_EN 0x04c +#define DISP_REG_CONFIG_DISP_UFOE_MOUT_EN 0x050 +#define DISP_REG_CONFIG_DISP_COLOR0_SEL_IN 0x084 +#define DISP_REG_CONFIG_DISP_COLOR1_SEL_IN 0x088 +#define DISP_REG_CONFIG_DSIE_SEL_IN 0x0a4 +#define DISP_REG_CONFIG_DSIO_SEL_IN 0x0a8 +#define DISP_REG_CONFIG_DPI_SEL_IN 0x0ac +#define DISP_REG_CONFIG_DISP_RDMA2_SOUT 0x0b8 +#define DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN 0x0c4 +#define DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN 0x0c8 +#define DISP_REG_CONFIG_MMSYS_CG_CON0 0x100 + +#define DISP_REG_CONFIG_DISP_OVL_MOUT_EN 0x030 +#define DISP_REG_CONFIG_OUT_SEL 0x04c +#define DISP_REG_CONFIG_DSI_SEL 0x050 +#define DISP_REG_CONFIG_DPI_SEL 0x064 + +#define OVL0_MOUT_EN_COLOR0 0x1 +#define OD_MOUT_EN_RDMA0 0x1 +#define OD1_MOUT_EN_RDMA1 BIT(16) +#define UFOE_MOUT_EN_DSI0 0x1 +#define COLOR0_SEL_IN_OVL0 0x1 +#define OVL1_MOUT_EN_COLOR1 0x1 +#define GAMMA_MOUT_EN_RDMA1 0x1 +#define RDMA0_SOUT_DPI0 0x2 +#define RDMA0_SOUT_DPI1 0x3 +#define RDMA0_SOUT_DSI1 0x1 +#define RDMA0_SOUT_DSI2 0x4 +#define RDMA0_SOUT_DSI3 0x5 +#define RDMA1_SOUT_DPI0 0x2 +#define RDMA1_SOUT_DPI1 0x3 +#define RDMA1_SOUT_DSI1 0x1 +#define RDMA1_SOUT_DSI2 0x4 +#define RDMA1_SOUT_DSI3 0x5 +#define RDMA2_SOUT_DPI0 0x2 +#define RDMA2_SOUT_DPI1 0x3 +#define RDMA2_SOUT_DSI1 0x1 +#define RDMA2_SOUT_DSI2 0x4 +#define RDMA2_SOUT_DSI3 0x5 +#define DPI0_SEL_IN_RDMA1 0x1 +#define DPI0_SEL_IN_RDMA2 0x3 +#define DPI1_SEL_IN_RDMA1 (0x1 << 8) +#define DPI1_SEL_IN_RDMA2 (0x3 << 8) +#define DSI0_SEL_IN_RDMA1 0x1 +#define DSI0_SEL_IN_RDMA2 0x4 +#define DSI1_SEL_IN_RDMA1 0x1 +#define DSI1_SEL_IN_RDMA2 0x4 +#define DSI2_SEL_IN_RDMA1 (0x1 << 16) +#define DSI2_SEL_IN_RDMA2 (0x4 << 16) +#define DSI3_SEL_IN_RDMA1 (0x1 << 16) +#define DSI3_SEL_IN_RDMA2 (0x4 << 16) +#define COLOR1_SEL_IN_OVL1 0x1 + +#define OVL_MOUT_EN_RDMA 0x1 +#define BLS_TO_DSI_RDMA1_TO_DPI1 0x8 +#define BLS_TO_DPI_RDMA1_TO_DSI 0x2 +#define DSI_SEL_IN_BLS 0x0 +#define DPI_SEL_IN_BLS 0x0 +#define DSI_SEL_IN_RDMA 0x1 + +struct mtk_mmsys_routes { + u32 from_comp; + u32 to_comp; + u32 addr; + u32 val; +}; + +struct mtk_mmsys_driver_data { + const char *clk_driver; + const struct mtk_mmsys_routes *routes; + const unsigned int num_routes; +}; + +/* + * Routes in mt8173, mt2701, mt2712 are different. That means + * in the same register address, it controls different input/output + * selection for each SoC. But, right now, they use the same table as + * default routes meet their requirements. But we don't have the complete + * route information for these three SoC, so just keep them in the same + * table. After we've more information, we could separate mt2701, mt2712 + * to an independent table. + */ +static const struct mtk_mmsys_routes mmsys_default_routing_table[] = { + { + DDP_COMPONENT_BLS, DDP_COMPONENT_DSI0, + DISP_REG_CONFIG_OUT_SEL, BLS_TO_DSI_RDMA1_TO_DPI1 + }, { + DDP_COMPONENT_BLS, DDP_COMPONENT_DSI0, + DISP_REG_CONFIG_DSI_SEL, DSI_SEL_IN_BLS + }, { + DDP_COMPONENT_BLS, DDP_COMPONENT_DPI0, + DISP_REG_CONFIG_OUT_SEL, BLS_TO_DPI_RDMA1_TO_DSI + }, { + DDP_COMPONENT_BLS, DDP_COMPONENT_DPI0, + DISP_REG_CONFIG_DSI_SEL, DSI_SEL_IN_RDMA + }, { + DDP_COMPONENT_BLS, DDP_COMPONENT_DPI0, + DISP_REG_CONFIG_DPI_SEL, DPI_SEL_IN_BLS + }, { + DDP_COMPONENT_GAMMA, DDP_COMPONENT_RDMA1, + DISP_REG_CONFIG_DISP_GAMMA_MOUT_EN, GAMMA_MOUT_EN_RDMA1 + }, { + DDP_COMPONENT_OD0, DDP_COMPONENT_RDMA0, + DISP_REG_CONFIG_DISP_OD_MOUT_EN, OD_MOUT_EN_RDMA0 + }, { + DDP_COMPONENT_OD1, DDP_COMPONENT_RDMA1, + DISP_REG_CONFIG_DISP_OD_MOUT_EN, OD1_MOUT_EN_RDMA1 + }, { + DDP_COMPONENT_OVL0, DDP_COMPONENT_COLOR0, + DISP_REG_CONFIG_DISP_OVL0_MOUT_EN, OVL0_MOUT_EN_COLOR0 + }, { + DDP_COMPONENT_OVL0, DDP_COMPONENT_COLOR0, + DISP_REG_CONFIG_DISP_COLOR0_SEL_IN, COLOR0_SEL_IN_OVL0 + }, { + DDP_COMPONENT_OVL0, DDP_COMPONENT_RDMA0, + DISP_REG_CONFIG_DISP_OVL_MOUT_EN, OVL_MOUT_EN_RDMA + }, { + DDP_COMPONENT_OVL1, DDP_COMPONENT_COLOR1, + DISP_REG_CONFIG_DISP_OVL1_MOUT_EN, OVL1_MOUT_EN_COLOR1 + }, { + DDP_COMPONENT_OVL1, DDP_COMPONENT_COLOR1, + DISP_REG_CONFIG_DISP_COLOR1_SEL_IN, COLOR1_SEL_IN_OVL1 + }, { + DDP_COMPONENT_RDMA0, DDP_COMPONENT_DPI0, + DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN, RDMA0_SOUT_DPI0 + }, { + DDP_COMPONENT_RDMA0, DDP_COMPONENT_DPI1, + DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN, RDMA0_SOUT_DPI1 + }, { + DDP_COMPONENT_RDMA0, DDP_COMPONENT_DSI1, + DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN, RDMA0_SOUT_DSI1 + }, { + DDP_COMPONENT_RDMA0, DDP_COMPONENT_DSI2, + DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN, RDMA0_SOUT_DSI2 + }, { + DDP_COMPONENT_RDMA0, DDP_COMPONENT_DSI3, + DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN, RDMA0_SOUT_DSI3 + }, { + DDP_COMPONENT_RDMA1, DDP_COMPONENT_DPI0, + DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN, RDMA1_SOUT_DPI0 + }, { + DDP_COMPONENT_RDMA1, DDP_COMPONENT_DPI0, + DISP_REG_CONFIG_DPI_SEL_IN, DPI0_SEL_IN_RDMA1 + }, { + DDP_COMPONENT_RDMA1, DDP_COMPONENT_DPI1, + DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN, RDMA1_SOUT_DPI1 + }, { + DDP_COMPONENT_RDMA1, DDP_COMPONENT_DPI1, + DISP_REG_CONFIG_DPI_SEL_IN, DPI1_SEL_IN_RDMA1 + }, { + DDP_COMPONENT_RDMA1, DDP_COMPONENT_DSI0, + DISP_REG_CONFIG_DSIE_SEL_IN, DSI0_SEL_IN_RDMA1 + }, { + DDP_COMPONENT_RDMA1, DDP_COMPONENT_DSI1, + DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN, RDMA1_SOUT_DSI1 + }, { + DDP_COMPONENT_RDMA1, DDP_COMPONENT_DSI1, + DISP_REG_CONFIG_DSIO_SEL_IN, DSI1_SEL_IN_RDMA1 + }, { + DDP_COMPONENT_RDMA1, DDP_COMPONENT_DSI2, + DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN, RDMA1_SOUT_DSI2 + }, { + DDP_COMPONENT_RDMA1, DDP_COMPONENT_DSI2, + DISP_REG_CONFIG_DSIE_SEL_IN, DSI2_SEL_IN_RDMA1 + }, { + DDP_COMPONENT_RDMA1, DDP_COMPONENT_DSI3, + DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN, RDMA1_SOUT_DSI3 + }, { + DDP_COMPONENT_RDMA1, DDP_COMPONENT_DSI3, + DISP_REG_CONFIG_DSIO_SEL_IN, DSI3_SEL_IN_RDMA1 + }, { + DDP_COMPONENT_RDMA2, DDP_COMPONENT_DPI0, + DISP_REG_CONFIG_DISP_RDMA2_SOUT, RDMA2_SOUT_DPI0 + }, { + DDP_COMPONENT_RDMA2, DDP_COMPONENT_DPI0, + DISP_REG_CONFIG_DPI_SEL_IN, DPI0_SEL_IN_RDMA2 + }, { + DDP_COMPONENT_RDMA2, DDP_COMPONENT_DPI1, + DISP_REG_CONFIG_DISP_RDMA2_SOUT, RDMA2_SOUT_DPI1 + }, { + DDP_COMPONENT_RDMA2, DDP_COMPONENT_DPI1, + DISP_REG_CONFIG_DPI_SEL_IN, DPI1_SEL_IN_RDMA2 + }, { + DDP_COMPONENT_RDMA2, DDP_COMPONENT_DSI0, + DISP_REG_CONFIG_DSIE_SEL_IN, DSI0_SEL_IN_RDMA2 + }, { + DDP_COMPONENT_RDMA2, DDP_COMPONENT_DSI1, + DISP_REG_CONFIG_DISP_RDMA2_SOUT, RDMA2_SOUT_DSI1 + }, { + DDP_COMPONENT_RDMA2, DDP_COMPONENT_DSI1, + DISP_REG_CONFIG_DSIO_SEL_IN, DSI1_SEL_IN_RDMA2 + }, { + DDP_COMPONENT_RDMA2, DDP_COMPONENT_DSI2, + DISP_REG_CONFIG_DISP_RDMA2_SOUT, RDMA2_SOUT_DSI2 + }, { + DDP_COMPONENT_RDMA2, DDP_COMPONENT_DSI2, + DISP_REG_CONFIG_DSIE_SEL_IN, DSI2_SEL_IN_RDMA2 + }, { + DDP_COMPONENT_RDMA2, DDP_COMPONENT_DSI3, + DISP_REG_CONFIG_DISP_RDMA2_SOUT, RDMA2_SOUT_DSI3 + }, { + DDP_COMPONENT_RDMA2, DDP_COMPONENT_DSI3, + DISP_REG_CONFIG_DSIO_SEL_IN, DSI3_SEL_IN_RDMA2 + } +}; + +#endif /* __SOC_MEDIATEK_MTK_MMSYS_H */ diff --git a/drivers/soc/mediatek/mtk-mutex.c b/drivers/soc/mediatek/mtk-mutex.c index f531b119da7a..2e4bcc300576 100644 --- a/drivers/soc/mediatek/mtk-mutex.c +++ b/drivers/soc/mediatek/mtk-mutex.c @@ -14,6 +14,8 @@ #define MT2701_MUTEX0_MOD0 0x2c #define MT2701_MUTEX0_SOF0 0x30 +#define MT8183_MUTEX0_MOD0 0x30 +#define MT8183_MUTEX0_SOF0 0x2c #define DISP_REG_MUTEX_EN(n) (0x20 + 0x20 * (n)) #define DISP_REG_MUTEX(n) (0x24 + 0x20 * (n)) @@ -37,6 +39,18 @@ #define MT8167_MUTEX_MOD_DISP_DITHER 15 #define MT8167_MUTEX_MOD_DISP_UFOE 16 +#define MT8183_MUTEX_MOD_DISP_RDMA0 0 +#define MT8183_MUTEX_MOD_DISP_RDMA1 1 +#define MT8183_MUTEX_MOD_DISP_OVL0 9 +#define MT8183_MUTEX_MOD_DISP_OVL0_2L 10 +#define MT8183_MUTEX_MOD_DISP_OVL1_2L 11 +#define MT8183_MUTEX_MOD_DISP_WDMA0 12 +#define MT8183_MUTEX_MOD_DISP_COLOR0 13 +#define MT8183_MUTEX_MOD_DISP_CCORR0 14 +#define MT8183_MUTEX_MOD_DISP_AAL0 15 +#define MT8183_MUTEX_MOD_DISP_GAMMA0 16 +#define MT8183_MUTEX_MOD_DISP_DITHER0 17 + #define MT8173_MUTEX_MOD_DISP_OVL0 11 #define MT8173_MUTEX_MOD_DISP_OVL1 12 #define MT8173_MUTEX_MOD_DISP_RDMA0 13 @@ -87,6 +101,11 @@ #define MT2712_MUTEX_SOF_DSI3 6 #define MT8167_MUTEX_SOF_DPI0 2 #define MT8167_MUTEX_SOF_DPI1 3 +#define MT8183_MUTEX_SOF_DSI0 1 +#define MT8183_MUTEX_SOF_DPI0 2 + +#define MT8183_MUTEX_EOF_DSI0 (MT8183_MUTEX_SOF_DSI0 << 6) +#define MT8183_MUTEX_EOF_DPI0 (MT8183_MUTEX_SOF_DPI0 << 6) struct mtk_mutex { int id; @@ -181,6 +200,20 @@ static const unsigned int mt8173_mutex_mod[DDP_COMPONENT_ID_MAX] = { [DDP_COMPONENT_WDMA1] = MT8173_MUTEX_MOD_DISP_WDMA1, }; +static const unsigned int mt8183_mutex_mod[DDP_COMPONENT_ID_MAX] = { + [DDP_COMPONENT_AAL0] = MT8183_MUTEX_MOD_DISP_AAL0, + [DDP_COMPONENT_CCORR] = MT8183_MUTEX_MOD_DISP_CCORR0, + [DDP_COMPONENT_COLOR0] = MT8183_MUTEX_MOD_DISP_COLOR0, + [DDP_COMPONENT_DITHER] = MT8183_MUTEX_MOD_DISP_DITHER0, + [DDP_COMPONENT_GAMMA] = MT8183_MUTEX_MOD_DISP_GAMMA0, + [DDP_COMPONENT_OVL0] = MT8183_MUTEX_MOD_DISP_OVL0, + [DDP_COMPONENT_OVL_2L0] = MT8183_MUTEX_MOD_DISP_OVL0_2L, + [DDP_COMPONENT_OVL_2L1] = MT8183_MUTEX_MOD_DISP_OVL1_2L, + [DDP_COMPONENT_RDMA0] = MT8183_MUTEX_MOD_DISP_RDMA0, + [DDP_COMPONENT_RDMA1] = MT8183_MUTEX_MOD_DISP_RDMA1, + [DDP_COMPONENT_WDMA0] = MT8183_MUTEX_MOD_DISP_WDMA0, +}; + static const unsigned int mt2712_mutex_sof[MUTEX_SOF_DSI3 + 1] = { [MUTEX_SOF_SINGLE_MODE] = MUTEX_SOF_SINGLE_MODE, [MUTEX_SOF_DSI0] = MUTEX_SOF_DSI0, @@ -198,6 +231,13 @@ static const unsigned int mt8167_mutex_sof[MUTEX_SOF_DSI3 + 1] = { [MUTEX_SOF_DPI1] = MT8167_MUTEX_SOF_DPI1, }; +/* Add EOF setting so overlay hardware can receive frame done irq */ +static const unsigned int mt8183_mutex_sof[MUTEX_SOF_DSI3 + 1] = { + [MUTEX_SOF_SINGLE_MODE] = MUTEX_SOF_SINGLE_MODE, + [MUTEX_SOF_DSI0] = MUTEX_SOF_DSI0 | MT8183_MUTEX_EOF_DSI0, + [MUTEX_SOF_DPI0] = MT8183_MUTEX_SOF_DPI0 | MT8183_MUTEX_EOF_DPI0, +}; + static const struct mtk_mutex_data mt2701_mutex_driver_data = { .mutex_mod = mt2701_mutex_mod, .mutex_sof = mt2712_mutex_sof, @@ -227,6 +267,14 @@ static const struct mtk_mutex_data mt8173_mutex_driver_data = { .mutex_sof_reg = MT2701_MUTEX0_SOF0, }; +static const struct mtk_mutex_data mt8183_mutex_driver_data = { + .mutex_mod = mt8183_mutex_mod, + .mutex_sof = mt8183_mutex_sof, + .mutex_mod_reg = MT8183_MUTEX0_MOD0, + .mutex_sof_reg = MT8183_MUTEX0_SOF0, + .no_clk = true, +}; + struct mtk_mutex *mtk_mutex_get(struct device *dev) { struct mtk_mutex_ctx *mtx = dev_get_drvdata(dev); @@ -457,11 +505,13 @@ static const struct of_device_id mutex_driver_dt_match[] = { .data = &mt8167_mutex_driver_data}, { .compatible = "mediatek,mt8173-disp-mutex", .data = &mt8173_mutex_driver_data}, + { .compatible = "mediatek,mt8183-disp-mutex", + .data = &mt8183_mutex_driver_data}, {}, }; MODULE_DEVICE_TABLE(of, mutex_driver_dt_match); -struct platform_driver mtk_mutex_driver = { +static struct platform_driver mtk_mutex_driver = { .probe = mtk_mutex_probe, .remove = mtk_mutex_remove, .driver = { diff --git a/drivers/soc/mediatek/mtk-pm-domains.c b/drivers/soc/mediatek/mtk-pm-domains.c index b7f697666bdd..0af00efa0ef8 100644 --- a/drivers/soc/mediatek/mtk-pm-domains.c +++ b/drivers/soc/mediatek/mtk-pm-domains.c @@ -438,7 +438,11 @@ generic_pm_domain *scpsys_add_one_domain(struct scpsys *scpsys, struct device_no goto err_unprepare_subsys_clocks; } - pd->genpd.name = node->name; + if (!pd->data->name) + pd->genpd.name = node->name; + else + pd->genpd.name = pd->data->name; + pd->genpd.power_off = scpsys_power_off; pd->genpd.power_on = scpsys_power_on; @@ -487,8 +491,9 @@ static int scpsys_add_subdomain(struct scpsys *scpsys, struct device_node *paren child_pd = scpsys_add_one_domain(scpsys, child); if (IS_ERR(child_pd)) { - dev_err_probe(scpsys->dev, PTR_ERR(child_pd), - "%pOF: failed to get child domain id\n", child); + ret = PTR_ERR(child_pd); + dev_err_probe(scpsys->dev, ret, "%pOF: failed to get child domain id\n", + child); goto err_put_node; } diff --git a/drivers/soc/mediatek/mtk-pm-domains.h b/drivers/soc/mediatek/mtk-pm-domains.h index 141dc76054e6..21a4e113bbec 100644 --- a/drivers/soc/mediatek/mtk-pm-domains.h +++ b/drivers/soc/mediatek/mtk-pm-domains.h @@ -76,6 +76,7 @@ struct scpsys_bus_prot_data { /** * struct scpsys_domain_data - scp domain data for power on/off flow + * @name: The name of the power domain. * @sta_mask: The mask for power on/off status bit. * @ctl_offs: The offset for main power control register. * @sram_pdn_bits: The mask for sram power control bits. @@ -85,6 +86,7 @@ struct scpsys_bus_prot_data { * @bp_smi: bus protection for smi subsystem */ struct scpsys_domain_data { + const char *name; u32 sta_mask; int ctl_offs; u32 sram_pdn_bits; diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c index 5d34e8b9c988..e4de75f35c33 100644 --- a/drivers/soc/mediatek/mtk-pmic-wrap.c +++ b/drivers/soc/mediatek/mtk-pmic-wrap.c @@ -25,10 +25,12 @@ /* macro for wrapper status */ #define PWRAP_GET_WACS_RDATA(x) (((x) >> 0) & 0x0000ffff) +#define PWRAP_GET_WACS_ARB_FSM(x) (((x) >> 1) & 0x00000007) #define PWRAP_GET_WACS_FSM(x) (((x) >> 16) & 0x00000007) #define PWRAP_GET_WACS_REQ(x) (((x) >> 19) & 0x00000001) -#define PWRAP_STATE_SYNC_IDLE0 (1 << 20) -#define PWRAP_STATE_INIT_DONE0 (1 << 21) +#define PWRAP_STATE_SYNC_IDLE0 BIT(20) +#define PWRAP_STATE_INIT_DONE0 BIT(21) +#define PWRAP_STATE_INIT_DONE1 BIT(15) /* macro for WACS FSM */ #define PWRAP_WACS_FSM_IDLE 0x00 @@ -74,6 +76,7 @@ #define PWRAP_CAP_DCM BIT(2) #define PWRAP_CAP_INT1_EN BIT(3) #define PWRAP_CAP_WDT_SRC1 BIT(4) +#define PWRAP_CAP_ARB BIT(5) /* defines for slave device wrapper registers */ enum dew_regs { @@ -340,6 +343,8 @@ enum pwrap_regs { PWRAP_DCM_DBC_PRD, PWRAP_EINT_STA0_ADR, PWRAP_EINT_STA1_ADR, + PWRAP_SWINF_2_WDATA_31_0, + PWRAP_SWINF_2_RDATA_31_0, /* MT2701 only regs */ PWRAP_ADC_CMD_ADDR, @@ -627,6 +632,17 @@ static int mt6797_regs[] = { [PWRAP_DCM_DBC_PRD] = 0x1D4, }; +static int mt6873_regs[] = { + [PWRAP_INIT_DONE2] = 0x0, + [PWRAP_TIMER_EN] = 0x3E0, + [PWRAP_INT_EN] = 0x448, + [PWRAP_WACS2_CMD] = 0xC80, + [PWRAP_SWINF_2_WDATA_31_0] = 0xC84, + [PWRAP_SWINF_2_RDATA_31_0] = 0xC94, + [PWRAP_WACS2_VLDCLR] = 0xCA4, + [PWRAP_WACS2_RDATA] = 0xCA8, +}; + static int mt7622_regs[] = { [PWRAP_MUX_SEL] = 0x0, [PWRAP_WRAP_EN] = 0x4, @@ -1045,6 +1061,7 @@ enum pwrap_type { PWRAP_MT6765, PWRAP_MT6779, PWRAP_MT6797, + PWRAP_MT6873, PWRAP_MT7622, PWRAP_MT8135, PWRAP_MT8173, @@ -1106,18 +1123,25 @@ static void pwrap_writel(struct pmic_wrapper *wrp, u32 val, enum pwrap_regs reg) writel(val, wrp->base + wrp->master->regs[reg]); } -static bool pwrap_is_fsm_idle(struct pmic_wrapper *wrp) +static u32 pwrap_get_fsm_state(struct pmic_wrapper *wrp) { - u32 val = pwrap_readl(wrp, PWRAP_WACS2_RDATA); + u32 val; - return PWRAP_GET_WACS_FSM(val) == PWRAP_WACS_FSM_IDLE; + val = pwrap_readl(wrp, PWRAP_WACS2_RDATA); + if (HAS_CAP(wrp->master->caps, PWRAP_CAP_ARB)) + return PWRAP_GET_WACS_ARB_FSM(val); + else + return PWRAP_GET_WACS_FSM(val); } -static bool pwrap_is_fsm_vldclr(struct pmic_wrapper *wrp) +static bool pwrap_is_fsm_idle(struct pmic_wrapper *wrp) { - u32 val = pwrap_readl(wrp, PWRAP_WACS2_RDATA); + return pwrap_get_fsm_state(wrp) == PWRAP_WACS_FSM_IDLE; +} - return PWRAP_GET_WACS_FSM(val) == PWRAP_WACS_FSM_WFVLDCLR; +static bool pwrap_is_fsm_vldclr(struct pmic_wrapper *wrp) +{ + return pwrap_get_fsm_state(wrp) == PWRAP_WACS_FSM_WFVLDCLR; } /* @@ -1165,6 +1189,7 @@ static int pwrap_wait_for_state(struct pmic_wrapper *wrp, static int pwrap_read16(struct pmic_wrapper *wrp, u32 adr, u32 *rdata) { int ret; + u32 val; ret = pwrap_wait_for_state(wrp, pwrap_is_fsm_idle); if (ret) { @@ -1172,13 +1197,21 @@ static int pwrap_read16(struct pmic_wrapper *wrp, u32 adr, u32 *rdata) return ret; } - pwrap_writel(wrp, (adr >> 1) << 16, PWRAP_WACS2_CMD); + if (HAS_CAP(wrp->master->caps, PWRAP_CAP_ARB)) + val = adr; + else + val = (adr >> 1) << 16; + pwrap_writel(wrp, val, PWRAP_WACS2_CMD); ret = pwrap_wait_for_state(wrp, pwrap_is_fsm_vldclr); if (ret) return ret; - *rdata = PWRAP_GET_WACS_RDATA(pwrap_readl(wrp, PWRAP_WACS2_RDATA)); + if (HAS_CAP(wrp->master->caps, PWRAP_CAP_ARB)) + val = pwrap_readl(wrp, PWRAP_SWINF_2_RDATA_31_0); + else + val = pwrap_readl(wrp, PWRAP_WACS2_RDATA); + *rdata = PWRAP_GET_WACS_RDATA(val); pwrap_writel(wrp, 1, PWRAP_WACS2_VLDCLR); @@ -1228,8 +1261,13 @@ static int pwrap_write16(struct pmic_wrapper *wrp, u32 adr, u32 wdata) return ret; } - pwrap_writel(wrp, (1 << 31) | ((adr >> 1) << 16) | wdata, - PWRAP_WACS2_CMD); + if (HAS_CAP(wrp->master->caps, PWRAP_CAP_ARB)) { + pwrap_writel(wrp, wdata, PWRAP_SWINF_2_WDATA_31_0); + pwrap_writel(wrp, BIT(29) | adr, PWRAP_WACS2_CMD); + } else { + pwrap_writel(wrp, BIT(31) | ((adr >> 1) << 16) | wdata, + PWRAP_WACS2_CMD); + } return 0; } @@ -1485,6 +1523,7 @@ static int pwrap_init_cipher(struct pmic_wrapper *wrp) case PWRAP_MT7622: pwrap_writel(wrp, 0, PWRAP_CIPHER_EN); break; + case PWRAP_MT6873: case PWRAP_MT8183: break; } @@ -1921,6 +1960,19 @@ static const struct pmic_wrapper_type pwrap_mt6797 = { .init_soc_specific = NULL, }; +static const struct pmic_wrapper_type pwrap_mt6873 = { + .regs = mt6873_regs, + .type = PWRAP_MT6873, + .arb_en_all = 0x777f, + .int_en_all = BIT(4) | BIT(5), + .int1_en_all = 0, + .spi_w = PWRAP_MAN_CMD_SPI_WRITE, + .wdt_src = PWRAP_WDT_SRC_MASK_ALL, + .caps = PWRAP_CAP_ARB, + .init_reg_clock = pwrap_common_init_reg_clock, + .init_soc_specific = NULL, +}; + static const struct pmic_wrapper_type pwrap_mt7622 = { .regs = mt7622_regs, .type = PWRAP_MT7622, @@ -1999,6 +2051,9 @@ static const struct of_device_id of_pwrap_match_tbl[] = { .compatible = "mediatek,mt6797-pwrap", .data = &pwrap_mt6797, }, { + .compatible = "mediatek,mt6873-pwrap", + .data = &pwrap_mt6873, + }, { .compatible = "mediatek,mt7622-pwrap", .data = &pwrap_mt7622, }, { @@ -2022,6 +2077,7 @@ MODULE_DEVICE_TABLE(of, of_pwrap_match_tbl); static int pwrap_probe(struct platform_device *pdev) { int ret, irq; + u32 mask_done; struct pmic_wrapper *wrp; struct device_node *np = pdev->dev.of_node; const struct of_device_id *of_slave_id = NULL; @@ -2116,14 +2172,21 @@ static int pwrap_probe(struct platform_device *pdev) } } - if (!(pwrap_readl(wrp, PWRAP_WACS2_RDATA) & PWRAP_STATE_INIT_DONE0)) { + if (HAS_CAP(wrp->master->caps, PWRAP_CAP_ARB)) + mask_done = PWRAP_STATE_INIT_DONE1; + else + mask_done = PWRAP_STATE_INIT_DONE0; + + if (!(pwrap_readl(wrp, PWRAP_WACS2_RDATA) & mask_done)) { dev_dbg(wrp->dev, "initialization isn't finished\n"); ret = -ENODEV; goto err_out2; } /* Initialize watchdog, may not be done by the bootloader */ - pwrap_writel(wrp, 0xf, PWRAP_WDT_UNIT); + if (!HAS_CAP(wrp->master->caps, PWRAP_CAP_ARB)) + pwrap_writel(wrp, 0xf, PWRAP_WDT_UNIT); + /* * Since STAUPD was not used on mt8173 platform, * so STAUPD of WDT_SRC which should be turned off @@ -2132,7 +2195,11 @@ static int pwrap_probe(struct platform_device *pdev) if (HAS_CAP(wrp->master->caps, PWRAP_CAP_WDT_SRC1)) pwrap_writel(wrp, wrp->master->wdt_src, PWRAP_WDT_SRC_EN_1); - pwrap_writel(wrp, 0x1, PWRAP_TIMER_EN); + if (HAS_CAP(wrp->master->caps, PWRAP_CAP_ARB)) + pwrap_writel(wrp, 0x3, PWRAP_TIMER_EN); + else + pwrap_writel(wrp, 0x1, PWRAP_TIMER_EN); + pwrap_writel(wrp, wrp->master->int_en_all, PWRAP_INT_EN); /* * We add INT1 interrupt to handle starvation and request exception diff --git a/drivers/soc/qcom/llcc-qcom.c b/drivers/soc/qcom/llcc-qcom.c index 8403a77b59fe..15a36dcab990 100644 --- a/drivers/soc/qcom/llcc-qcom.c +++ b/drivers/soc/qcom/llcc-qcom.c @@ -109,6 +109,18 @@ static const struct llcc_slice_config sc7180_data[] = { { LLCC_GPU, 12, 128, 1, 0, 0xf, 0x0, 0, 0, 0, 1, 0 }, }; +static const struct llcc_slice_config sc7280_data[] = { + { LLCC_CPUSS, 1, 768, 1, 0, 0x3f, 0x0, 0, 0, 0, 1, 1, 0}, + { LLCC_MDMHPGRW, 7, 512, 2, 1, 0x3f, 0x0, 0, 0, 0, 1, 0, 0}, + { LLCC_CMPT, 10, 768, 1, 1, 0x3f, 0x0, 0, 0, 0, 1, 0, 0}, + { LLCC_GPUHTW, 11, 256, 1, 1, 0x3f, 0x0, 0, 0, 0, 1, 0, 0}, + { LLCC_GPU, 12, 512, 1, 0, 0x3f, 0x0, 0, 0, 0, 1, 0, 0}, + { LLCC_MMUHWT, 13, 256, 1, 1, 0x3f, 0x0, 0, 0, 0, 1, 1, 0}, + { LLCC_MDMPNG, 21, 768, 0, 1, 0x3f, 0x0, 0, 0, 0, 1, 0, 0}, + { LLCC_WLHW, 24, 256, 1, 1, 0x3f, 0x0, 0, 0, 0, 1, 0, 0}, + { LLCC_MODPE, 29, 64, 1, 1, 0x3f, 0x0, 0, 0, 0, 1, 0, 0}, +}; + static const struct llcc_slice_config sdm845_data[] = { { LLCC_CPUSS, 1, 2816, 1, 0, 0xffc, 0x2, 0, 0, 1, 1, 1 }, { LLCC_VIDSC0, 2, 512, 2, 1, 0x0, 0x0f0, 0, 0, 1, 1, 0 }, @@ -179,6 +191,12 @@ static const struct qcom_llcc_config sc7180_cfg = { .need_llcc_cfg = true, }; +static const struct qcom_llcc_config sc7280_cfg = { + .sct_data = sc7280_data, + .size = ARRAY_SIZE(sc7280_data), + .need_llcc_cfg = true, +}; + static const struct qcom_llcc_config sdm845_cfg = { .sct_data = sdm845_data, .size = ARRAY_SIZE(sdm845_data), @@ -606,6 +624,7 @@ err: static const struct of_device_id qcom_llcc_of_match[] = { { .compatible = "qcom,sc7180-llcc", .data = &sc7180_cfg }, + { .compatible = "qcom,sc7280-llcc", .data = &sc7280_cfg }, { .compatible = "qcom,sdm845-llcc", .data = &sdm845_cfg }, { .compatible = "qcom,sm8150-llcc", .data = &sm8150_cfg }, { .compatible = "qcom,sm8250-llcc", .data = &sm8250_cfg }, diff --git a/drivers/soc/qcom/mdt_loader.c b/drivers/soc/qcom/mdt_loader.c index 24cd193dec55..eba7f76f9d61 100644 --- a/drivers/soc/qcom/mdt_loader.c +++ b/drivers/soc/qcom/mdt_loader.c @@ -230,6 +230,14 @@ static int __qcom_mdt_load(struct device *dev, const struct firmware *fw, break; } + if (phdr->p_filesz > phdr->p_memsz) { + dev_err(dev, + "refusing to load segment %d with p_filesz > p_memsz\n", + i); + ret = -EINVAL; + break; + } + ptr = mem_region + offset; if (phdr->p_filesz && phdr->p_offset < fw->size) { @@ -253,6 +261,15 @@ static int __qcom_mdt_load(struct device *dev, const struct firmware *fw, break; } + if (seg_fw->size != phdr->p_filesz) { + dev_err(dev, + "failed to load segment %d from truncated file %s\n", + i, fw_name); + release_firmware(seg_fw); + ret = -EINVAL; + break; + } + release_firmware(seg_fw); } diff --git a/drivers/soc/qcom/pdr_interface.c b/drivers/soc/qcom/pdr_interface.c index 209dcdca923f..915d5bc3d46e 100644 --- a/drivers/soc/qcom/pdr_interface.c +++ b/drivers/soc/qcom/pdr_interface.c @@ -153,7 +153,7 @@ static int pdr_register_listener(struct pdr_handle *pdr, if (resp.resp.result != QMI_RESULT_SUCCESS_V01) { pr_err("PDR: %s register listener failed: 0x%x\n", pds->service_path, resp.resp.error); - return ret; + return -EREMOTEIO; } pds->state = resp.curr_state; diff --git a/drivers/soc/qcom/qcom_aoss.c b/drivers/soc/qcom/qcom_aoss.c index 53acb9423bd6..934fcc4d2b05 100644 --- a/drivers/soc/qcom/qcom_aoss.c +++ b/drivers/soc/qcom/qcom_aoss.c @@ -597,6 +597,7 @@ static int qmp_remove(struct platform_device *pdev) static const struct of_device_id qmp_dt_match[] = { { .compatible = "qcom,sc7180-aoss-qmp", }, + { .compatible = "qcom,sc7280-aoss-qmp", }, { .compatible = "qcom,sdm845-aoss-qmp", }, { .compatible = "qcom,sm8150-aoss-qmp", }, { .compatible = "qcom,sm8250-aoss-qmp", }, diff --git a/drivers/soc/qcom/qmi_encdec.c b/drivers/soc/qcom/qmi_encdec.c index 3aaab71d1b2c..328cc8237191 100644 --- a/drivers/soc/qcom/qmi_encdec.c +++ b/drivers/soc/qcom/qmi_encdec.c @@ -451,11 +451,11 @@ static int qmi_decode_basic_elem(void *buf_dst, const void *buf_src, /** * qmi_decode_struct_elem() - Decodes elements of struct data type - * @ei_array: Struct info array descibing the struct element. + * @ei_array: Struct info array describing the struct element. * @buf_dst: Buffer to store the decoded element. * @buf_src: Buffer containing the elements in QMI wire format. * @elem_len: Number of elements to be decoded. - * @tlv_len: Total size of the encoded inforation corresponding to + * @tlv_len: Total size of the encoded information corresponding to * this struct element. * @dec_level: Depth of the nested structure from the main structure. * @@ -499,10 +499,10 @@ static int qmi_decode_struct_elem(struct qmi_elem_info *ei_array, /** * qmi_decode_string_elem() - Decodes elements of string data type - * @ei_array: Struct info array descibing the string element. + * @ei_array: Struct info array describing the string element. * @buf_dst: Buffer to store the decoded element. * @buf_src: Buffer containing the elements in QMI wire format. - * @tlv_len: Total size of the encoded inforation corresponding to + * @tlv_len: Total size of the encoded information corresponding to * this string element. * @dec_level: Depth of the string element from the main structure. * diff --git a/drivers/soc/qcom/rpmh-rsc.c b/drivers/soc/qcom/rpmh-rsc.c index a84ab0d6a9d4..e749a2b285d8 100644 --- a/drivers/soc/qcom/rpmh-rsc.c +++ b/drivers/soc/qcom/rpmh-rsc.c @@ -195,22 +195,6 @@ static void write_tcs_reg_sync(const struct rsc_drv *drv, int reg, int tcs_id, } /** - * tcs_is_free() - Return if a TCS is totally free. - * @drv: The RSC controller. - * @tcs_id: The global ID of this TCS. - * - * Returns true if nobody has claimed this TCS (by setting tcs_in_use). - * - * Context: Must be called with the drv->lock held. - * - * Return: true if the given TCS is free. - */ -static bool tcs_is_free(struct rsc_drv *drv, int tcs_id) -{ - return !test_bit(tcs_id, drv->tcs_in_use); -} - -/** * tcs_invalidate() - Invalidate all TCSes of the given type (sleep or wake). * @drv: The RSC controller. * @type: SLEEP_TCS or WAKE_TCS @@ -408,12 +392,10 @@ static irqreturn_t tcs_tx_done(int irq, void *p) irq_status = readl_relaxed(drv->tcs_base + RSC_DRV_IRQ_STATUS); - for_each_set_bit(i, &irq_status, BITS_PER_LONG) { + for_each_set_bit(i, &irq_status, BITS_PER_TYPE(u32)) { req = get_req_from_tcs(drv, i); - if (!req) { - WARN_ON(1); + if (WARN_ON(!req)) goto skip; - } err = 0; for (j = 0; j < req->num_cmds; j++) { @@ -520,7 +502,7 @@ static void __tcs_buffer_write(struct rsc_drv *drv, int tcs_id, int cmd_id, * * Return: 0 if nothing in flight or -EBUSY if we should try again later. * The caller must re-enable interrupts between tries since that's - * the only way tcs_is_free() will ever return true and the only way + * the only way tcs_in_use will ever be updated and the only way * RSC_DRV_CMD_ENABLE will ever be cleared. */ static int check_for_req_inflight(struct rsc_drv *drv, struct tcs_group *tcs, @@ -528,17 +510,14 @@ static int check_for_req_inflight(struct rsc_drv *drv, struct tcs_group *tcs, { unsigned long curr_enabled; u32 addr; - int i, j, k; - int tcs_id = tcs->offset; - - for (i = 0; i < tcs->num_tcs; i++, tcs_id++) { - if (tcs_is_free(drv, tcs_id)) - continue; + int j, k; + int i = tcs->offset; - curr_enabled = read_tcs_reg(drv, RSC_DRV_CMD_ENABLE, tcs_id); + for_each_set_bit_from(i, drv->tcs_in_use, tcs->offset + tcs->num_tcs) { + curr_enabled = read_tcs_reg(drv, RSC_DRV_CMD_ENABLE, i); for_each_set_bit(j, &curr_enabled, MAX_CMDS_PER_TCS) { - addr = read_tcs_cmd(drv, RSC_DRV_CMD_ADDR, tcs_id, j); + addr = read_tcs_cmd(drv, RSC_DRV_CMD_ADDR, i, j); for (k = 0; k < msg->num_cmds; k++) { if (addr == msg->cmds[k].addr) return -EBUSY; @@ -556,18 +535,19 @@ static int check_for_req_inflight(struct rsc_drv *drv, struct tcs_group *tcs, * * Must be called with the drv->lock held since that protects tcs_in_use. * - * Return: The first tcs that's free. + * Return: The first tcs that's free or -EBUSY if all in use. */ static int find_free_tcs(struct tcs_group *tcs) { - int i; + const struct rsc_drv *drv = tcs->drv; + unsigned long i; + unsigned long max = tcs->offset + tcs->num_tcs; - for (i = 0; i < tcs->num_tcs; i++) { - if (tcs_is_free(tcs->drv, tcs->offset + i)) - return tcs->offset + i; - } + i = find_next_zero_bit(drv->tcs_in_use, max, tcs->offset); + if (i >= max) + return -EBUSY; - return -EBUSY; + return i; } /** @@ -754,8 +734,9 @@ int rpmh_rsc_write_ctrl_data(struct rsc_drv *drv, const struct tcs_request *msg) */ static bool rpmh_rsc_ctrlr_is_busy(struct rsc_drv *drv) { - int m; - struct tcs_group *tcs = &drv->tcs[ACTIVE_TCS]; + unsigned long set; + const struct tcs_group *tcs = &drv->tcs[ACTIVE_TCS]; + unsigned long max; /* * If we made an active request on a RSC that does not have a @@ -766,12 +747,10 @@ static bool rpmh_rsc_ctrlr_is_busy(struct rsc_drv *drv) if (!tcs->num_tcs) tcs = &drv->tcs[WAKE_TCS]; - for (m = tcs->offset; m < tcs->offset + tcs->num_tcs; m++) { - if (!tcs_is_free(drv, m)) - return true; - } + max = tcs->offset + tcs->num_tcs; + set = find_next_bit(drv->tcs_in_use, max, tcs->offset); - return false; + return set < max; } /** diff --git a/drivers/soc/qcom/rpmhpd.c b/drivers/soc/qcom/rpmhpd.c index 7ce06356d24c..bb21c4f1c0c4 100644 --- a/drivers/soc/qcom/rpmhpd.c +++ b/drivers/soc/qcom/rpmhpd.c @@ -200,6 +200,42 @@ static const struct rpmhpd_desc sm8250_desc = { .num_pds = ARRAY_SIZE(sm8250_rpmhpds), }; +/* SM8350 Power domains */ +static struct rpmhpd sm8350_mxc_ao; +static struct rpmhpd sm8350_mxc = { + .pd = { .name = "mxc", }, + .peer = &sm8150_mmcx_ao, + .res_name = "mxc.lvl", +}; + +static struct rpmhpd sm8350_mxc_ao = { + .pd = { .name = "mxc_ao", }, + .active_only = true, + .peer = &sm8350_mxc, + .res_name = "mxc.lvl", +}; + +static struct rpmhpd *sm8350_rpmhpds[] = { + [SM8350_CX] = &sdm845_cx, + [SM8350_CX_AO] = &sdm845_cx_ao, + [SM8350_EBI] = &sdm845_ebi, + [SM8350_GFX] = &sdm845_gfx, + [SM8350_LCX] = &sdm845_lcx, + [SM8350_LMX] = &sdm845_lmx, + [SM8350_MMCX] = &sm8150_mmcx, + [SM8350_MMCX_AO] = &sm8150_mmcx_ao, + [SM8350_MX] = &sdm845_mx, + [SM8350_MX_AO] = &sdm845_mx_ao, + [SM8350_MXC] = &sm8350_mxc, + [SM8350_MXC_AO] = &sm8350_mxc_ao, + [SM8350_MSS] = &sdm845_mss, +}; + +static const struct rpmhpd_desc sm8350_desc = { + .rpmhpds = sm8350_rpmhpds, + .num_pds = ARRAY_SIZE(sm8350_rpmhpds), +}; + /* SC7180 RPMH powerdomains */ static struct rpmhpd *sc7180_rpmhpds[] = { [SC7180_CX] = &sdm845_cx, @@ -217,12 +253,32 @@ static const struct rpmhpd_desc sc7180_desc = { .num_pds = ARRAY_SIZE(sc7180_rpmhpds), }; +/* SC7280 RPMH powerdomains */ +static struct rpmhpd *sc7280_rpmhpds[] = { + [SC7280_CX] = &sdm845_cx, + [SC7280_CX_AO] = &sdm845_cx_ao, + [SC7280_EBI] = &sdm845_ebi, + [SC7280_GFX] = &sdm845_gfx, + [SC7280_MX] = &sdm845_mx, + [SC7280_MX_AO] = &sdm845_mx_ao, + [SC7280_LMX] = &sdm845_lmx, + [SC7280_LCX] = &sdm845_lcx, + [SC7280_MSS] = &sdm845_mss, +}; + +static const struct rpmhpd_desc sc7280_desc = { + .rpmhpds = sc7280_rpmhpds, + .num_pds = ARRAY_SIZE(sc7280_rpmhpds), +}; + static const struct of_device_id rpmhpd_match_table[] = { { .compatible = "qcom,sc7180-rpmhpd", .data = &sc7180_desc }, + { .compatible = "qcom,sc7280-rpmhpd", .data = &sc7280_desc }, { .compatible = "qcom,sdm845-rpmhpd", .data = &sdm845_desc }, { .compatible = "qcom,sdx55-rpmhpd", .data = &sdx55_desc}, { .compatible = "qcom,sm8150-rpmhpd", .data = &sm8150_desc }, { .compatible = "qcom,sm8250-rpmhpd", .data = &sm8250_desc }, + { .compatible = "qcom,sm8350-rpmhpd", .data = &sm8350_desc }, { } }; MODULE_DEVICE_TABLE(of, rpmhpd_match_table); diff --git a/drivers/soc/qcom/smem.c b/drivers/soc/qcom/smem.c index cc4e0655a47b..4fb5aeeb0843 100644 --- a/drivers/soc/qcom/smem.c +++ b/drivers/soc/qcom/smem.c @@ -84,7 +84,7 @@ #define SMEM_GLOBAL_HOST 0xfffe /* Max number of processors/hosts in a system */ -#define SMEM_HOST_COUNT 11 +#define SMEM_HOST_COUNT 14 /** * struct smem_proc_comm - proc_comm communication struct (legacy) diff --git a/drivers/soc/qcom/wcnss_ctrl.c b/drivers/soc/qcom/wcnss_ctrl.c index 32bed249f90e..2a06d631e415 100644 --- a/drivers/soc/qcom/wcnss_ctrl.c +++ b/drivers/soc/qcom/wcnss_ctrl.c @@ -199,6 +199,8 @@ static int wcnss_download_nv(struct wcnss_ctrl *wcnss, bool *expect_cbc) { struct wcnss_download_nv_req *req; const struct firmware *fw; + struct device *dev = wcnss->dev; + const char *nvbin = NVBIN_FILE; const void *data; ssize_t left; int ret; @@ -207,10 +209,13 @@ static int wcnss_download_nv(struct wcnss_ctrl *wcnss, bool *expect_cbc) if (!req) return -ENOMEM; - ret = request_firmware(&fw, NVBIN_FILE, wcnss->dev); + ret = of_property_read_string(dev->of_node, "firmware-name", &nvbin); + if (ret < 0 && ret != -EINVAL) + goto free_req; + + ret = request_firmware(&fw, nvbin, dev); if (ret < 0) { - dev_err(wcnss->dev, "Failed to load nv file %s: %d\n", - NVBIN_FILE, ret); + dev_err(dev, "Failed to load nv file %s: %d\n", nvbin, ret); goto free_req; } @@ -235,7 +240,7 @@ static int wcnss_download_nv(struct wcnss_ctrl *wcnss, bool *expect_cbc) ret = rpmsg_send(wcnss->channel, req, req->hdr.len); if (ret < 0) { - dev_err(wcnss->dev, "failed to send smd packet\n"); + dev_err(dev, "failed to send smd packet\n"); goto release_fw; } @@ -248,7 +253,7 @@ static int wcnss_download_nv(struct wcnss_ctrl *wcnss, bool *expect_cbc) ret = wait_for_completion_timeout(&wcnss->ack, WCNSS_REQUEST_TIMEOUT); if (!ret) { - dev_err(wcnss->dev, "timeout waiting for nv upload ack\n"); + dev_err(dev, "timeout waiting for nv upload ack\n"); ret = -ETIMEDOUT; } else { *expect_cbc = wcnss->ack_status == WCNSS_ACK_COLD_BOOTING; diff --git a/drivers/soc/renesas/rmobile-sysc.c b/drivers/soc/renesas/rmobile-sysc.c index 9046b8c933cb..204e6135180b 100644 --- a/drivers/soc/renesas/rmobile-sysc.c +++ b/drivers/soc/renesas/rmobile-sysc.c @@ -14,8 +14,6 @@ #include <linux/delay.h> #include <linux/of.h> #include <linux/of_address.h> -#include <linux/of_platform.h> -#include <linux/platform_device.h> #include <linux/pm.h> #include <linux/pm_clock.h> #include <linux/pm_domain.h> @@ -344,6 +342,8 @@ static int __init rmobile_init_pm_domains(void) of_node_put(np); break; } + + fwnode_dev_initialized(&np->fwnode, true); } put_special_pds(); diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index df9a5ca8c99c..6bd22359d411 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -39,6 +39,7 @@ #include <linux/platform_device.h> #include <linux/pm_domain.h> #include <linux/reboot.h> +#include <linux/regmap.h> #include <linux/reset.h> #include <linux/seq_file.h> #include <linux/slab.h> @@ -102,6 +103,9 @@ #define PMC_PWR_DET_VALUE 0xe4 +#define PMC_USB_DEBOUNCE_DEL 0xec +#define PMC_USB_AO 0xf0 + #define PMC_SCRATCH41 0x140 #define PMC_WAKE2_MASK 0x160 @@ -133,6 +137,13 @@ #define IO_DPD2_STATUS 0x1c4 #define SEL_DPD_TIM 0x1c8 +#define PMC_UTMIP_UHSIC_TRIGGERS 0x1ec +#define PMC_UTMIP_UHSIC_SAVED_STATE 0x1f0 + +#define PMC_UTMIP_TERM_PAD_CFG 0x1f8 +#define PMC_UTMIP_UHSIC_SLEEP_CFG 0x1fc +#define PMC_UTMIP_UHSIC_FAKE 0x218 + #define PMC_SCRATCH54 0x258 #define PMC_SCRATCH54_DATA_SHIFT 8 #define PMC_SCRATCH54_ADDR_SHIFT 0 @@ -145,8 +156,18 @@ #define PMC_SCRATCH55_CHECKSUM_SHIFT 16 #define PMC_SCRATCH55_I2CSLV1_SHIFT 0 +#define PMC_UTMIP_UHSIC_LINE_WAKEUP 0x26c + +#define PMC_UTMIP_BIAS_MASTER_CNTRL 0x270 +#define PMC_UTMIP_MASTER_CONFIG 0x274 +#define PMC_UTMIP_UHSIC2_TRIGGERS 0x27c +#define PMC_UTMIP_MASTER2_CONFIG 0x29c + #define GPU_RG_CNTRL 0x2d4 +#define PMC_UTMIP_PAD_CFG0 0x4c0 +#define PMC_UTMIP_UHSIC_SLEEP_CFG1 0x4d0 +#define PMC_UTMIP_SLEEPWALK_P3 0x4e0 /* Tegra186 and later */ #define WAKE_AOWAKE_CNTRL(x) (0x000 + ((x) << 2)) #define WAKE_AOWAKE_CNTRL_LEVEL (1 << 3) @@ -237,6 +258,7 @@ struct tegra_powergate { unsigned int id; struct clk **clks; unsigned int num_clks; + unsigned long *clk_rates; struct reset_control *reset; }; @@ -317,6 +339,8 @@ struct tegra_pmc_soc { bool invert); int (*irq_set_wake)(struct irq_data *data, unsigned int on); int (*irq_set_type)(struct irq_data *data, unsigned int type); + int (*powergate_set)(struct tegra_pmc *pmc, unsigned int id, + bool new_state); const char * const *reset_sources; unsigned int num_reset_sources; @@ -334,6 +358,7 @@ struct tegra_pmc_soc { const struct pmc_clk_init_data *pmc_clks_data; unsigned int num_pmc_clks; bool has_blink_output; + bool has_usb_sleepwalk; }; /** @@ -517,6 +542,63 @@ static int tegra_powergate_lookup(struct tegra_pmc *pmc, const char *name) return -ENODEV; } +static int tegra20_powergate_set(struct tegra_pmc *pmc, unsigned int id, + bool new_state) +{ + unsigned int retries = 100; + bool status; + int ret; + + /* + * As per TRM documentation, the toggle command will be dropped by PMC + * if there is contention with a HW-initiated toggling (i.e. CPU core + * power-gated), the command should be retried in that case. + */ + do { + tegra_pmc_writel(pmc, PWRGATE_TOGGLE_START | id, PWRGATE_TOGGLE); + + /* wait for PMC to execute the command */ + ret = readx_poll_timeout(tegra_powergate_state, id, status, + status == new_state, 1, 10); + } while (ret == -ETIMEDOUT && retries--); + + return ret; +} + +static inline bool tegra_powergate_toggle_ready(struct tegra_pmc *pmc) +{ + return !(tegra_pmc_readl(pmc, PWRGATE_TOGGLE) & PWRGATE_TOGGLE_START); +} + +static int tegra114_powergate_set(struct tegra_pmc *pmc, unsigned int id, + bool new_state) +{ + bool status; + int err; + + /* wait while PMC power gating is contended */ + err = readx_poll_timeout(tegra_powergate_toggle_ready, pmc, status, + status == true, 1, 100); + if (err) + return err; + + tegra_pmc_writel(pmc, PWRGATE_TOGGLE_START | id, PWRGATE_TOGGLE); + + /* wait for PMC to accept the command */ + err = readx_poll_timeout(tegra_powergate_toggle_ready, pmc, status, + status == true, 1, 100); + if (err) + return err; + + /* wait for PMC to execute the command */ + err = readx_poll_timeout(tegra_powergate_state, id, status, + status == new_state, 10, 100000); + if (err) + return err; + + return 0; +} + /** * tegra_powergate_set() - set the state of a partition * @pmc: power management controller @@ -526,7 +608,6 @@ static int tegra_powergate_lookup(struct tegra_pmc *pmc, const char *name) static int tegra_powergate_set(struct tegra_pmc *pmc, unsigned int id, bool new_state) { - bool status; int err; if (id == TEGRA_POWERGATE_3D && pmc->soc->has_gpu_clamps) @@ -539,10 +620,7 @@ static int tegra_powergate_set(struct tegra_pmc *pmc, unsigned int id, return 0; } - tegra_pmc_writel(pmc, PWRGATE_TOGGLE_START | id, PWRGATE_TOGGLE); - - err = readx_poll_timeout(tegra_powergate_state, id, status, - status == new_state, 10, 100000); + err = pmc->soc->powergate_set(pmc, id, new_state); mutex_unlock(&pmc->powergates_lock); @@ -586,6 +664,57 @@ out: return 0; } +static int tegra_powergate_prepare_clocks(struct tegra_powergate *pg) +{ + unsigned long safe_rate = 100 * 1000 * 1000; + unsigned int i; + int err; + + for (i = 0; i < pg->num_clks; i++) { + pg->clk_rates[i] = clk_get_rate(pg->clks[i]); + + if (!pg->clk_rates[i]) { + err = -EINVAL; + goto out; + } + + if (pg->clk_rates[i] <= safe_rate) + continue; + + /* + * We don't know whether voltage state is okay for the + * current clock rate, hence it's better to temporally + * switch clock to a safe rate which is suitable for + * all voltages, before enabling the clock. + */ + err = clk_set_rate(pg->clks[i], safe_rate); + if (err) + goto out; + } + + return 0; + +out: + while (i--) + clk_set_rate(pg->clks[i], pg->clk_rates[i]); + + return err; +} + +static int tegra_powergate_unprepare_clocks(struct tegra_powergate *pg) +{ + unsigned int i; + int err; + + for (i = 0; i < pg->num_clks; i++) { + err = clk_set_rate(pg->clks[i], pg->clk_rates[i]); + if (err) + return err; + } + + return 0; +} + static void tegra_powergate_disable_clocks(struct tegra_powergate *pg) { unsigned int i; @@ -636,9 +765,13 @@ static int tegra_powergate_power_up(struct tegra_powergate *pg, usleep_range(10, 20); + err = tegra_powergate_prepare_clocks(pg); + if (err) + goto powergate_off; + err = tegra_powergate_enable_clocks(pg); if (err) - goto disable_clks; + goto unprepare_clks; usleep_range(10, 20); @@ -662,12 +795,19 @@ static int tegra_powergate_power_up(struct tegra_powergate *pg, if (disable_clocks) tegra_powergate_disable_clocks(pg); + err = tegra_powergate_unprepare_clocks(pg); + if (err) + return err; + return 0; disable_clks: tegra_powergate_disable_clocks(pg); usleep_range(10, 20); +unprepare_clks: + tegra_powergate_unprepare_clocks(pg); + powergate_off: tegra_powergate_set(pg->pmc, pg->id, false); @@ -678,10 +818,14 @@ static int tegra_powergate_power_down(struct tegra_powergate *pg) { int err; - err = tegra_powergate_enable_clocks(pg); + err = tegra_powergate_prepare_clocks(pg); if (err) return err; + err = tegra_powergate_enable_clocks(pg); + if (err) + goto unprepare_clks; + usleep_range(10, 20); err = reset_control_assert(pg->reset); @@ -698,6 +842,10 @@ static int tegra_powergate_power_down(struct tegra_powergate *pg) if (err) goto assert_resets; + err = tegra_powergate_unprepare_clocks(pg); + if (err) + return err; + return 0; assert_resets: @@ -709,6 +857,9 @@ assert_resets: disable_clks: tegra_powergate_disable_clocks(pg); +unprepare_clks: + tegra_powergate_unprepare_clocks(pg); + return err; } @@ -739,7 +890,8 @@ static int tegra_genpd_power_off(struct generic_pm_domain *domain) err = reset_control_acquire(pg->reset); if (err < 0) { - pr_err("failed to acquire resets: %d\n", err); + dev_err(dev, "failed to acquire resets for PM domain %s: %d\n", + pg->genpd.name, err); return err; } @@ -826,6 +978,12 @@ int tegra_powergate_sequence_power_up(unsigned int id, struct clk *clk, if (!pg) return -ENOMEM; + pg->clk_rates = kzalloc(sizeof(*pg->clk_rates), GFP_KERNEL); + if (!pg->clk_rates) { + kfree(pg->clks); + return -ENOMEM; + } + pg->id = id; pg->clks = &clk; pg->num_clks = 1; @@ -837,6 +995,7 @@ int tegra_powergate_sequence_power_up(unsigned int id, struct clk *clk, dev_err(pmc->dev, "failed to turn on partition %d: %d\n", id, err); + kfree(pg->clk_rates); kfree(pg); return err; @@ -987,6 +1146,12 @@ static int tegra_powergate_of_get_clks(struct tegra_powergate *pg, if (!pg->clks) return -ENOMEM; + pg->clk_rates = kcalloc(count, sizeof(*pg->clk_rates), GFP_KERNEL); + if (!pg->clk_rates) { + kfree(pg->clks); + return -ENOMEM; + } + for (i = 0; i < count; i++) { pg->clks[i] = of_clk_get(np, i); if (IS_ERR(pg->clks[i])) { @@ -1003,6 +1168,7 @@ err: while (i--) clk_put(pg->clks[i]); + kfree(pg->clk_rates); kfree(pg->clks); return err; @@ -2443,6 +2609,67 @@ static void tegra_pmc_clock_register(struct tegra_pmc *pmc, err); } +static const struct regmap_range pmc_usb_sleepwalk_ranges[] = { + regmap_reg_range(PMC_USB_DEBOUNCE_DEL, PMC_USB_AO), + regmap_reg_range(PMC_UTMIP_UHSIC_TRIGGERS, PMC_UTMIP_UHSIC_SAVED_STATE), + regmap_reg_range(PMC_UTMIP_TERM_PAD_CFG, PMC_UTMIP_UHSIC_FAKE), + regmap_reg_range(PMC_UTMIP_UHSIC_LINE_WAKEUP, PMC_UTMIP_UHSIC_LINE_WAKEUP), + regmap_reg_range(PMC_UTMIP_BIAS_MASTER_CNTRL, PMC_UTMIP_MASTER_CONFIG), + regmap_reg_range(PMC_UTMIP_UHSIC2_TRIGGERS, PMC_UTMIP_MASTER2_CONFIG), + regmap_reg_range(PMC_UTMIP_PAD_CFG0, PMC_UTMIP_UHSIC_SLEEP_CFG1), + regmap_reg_range(PMC_UTMIP_SLEEPWALK_P3, PMC_UTMIP_SLEEPWALK_P3), +}; + +static const struct regmap_access_table pmc_usb_sleepwalk_table = { + .yes_ranges = pmc_usb_sleepwalk_ranges, + .n_yes_ranges = ARRAY_SIZE(pmc_usb_sleepwalk_ranges), +}; + +static int tegra_pmc_regmap_readl(void *context, unsigned int offset, unsigned int *value) +{ + struct tegra_pmc *pmc = context; + + *value = tegra_pmc_readl(pmc, offset); + return 0; +} + +static int tegra_pmc_regmap_writel(void *context, unsigned int offset, unsigned int value) +{ + struct tegra_pmc *pmc = context; + + tegra_pmc_writel(pmc, value, offset); + return 0; +} + +static const struct regmap_config usb_sleepwalk_regmap_config = { + .name = "usb_sleepwalk", + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, + .fast_io = true, + .rd_table = &pmc_usb_sleepwalk_table, + .wr_table = &pmc_usb_sleepwalk_table, + .reg_read = tegra_pmc_regmap_readl, + .reg_write = tegra_pmc_regmap_writel, +}; + +static int tegra_pmc_regmap_init(struct tegra_pmc *pmc) +{ + struct regmap *regmap; + int err; + + if (pmc->soc->has_usb_sleepwalk) { + regmap = devm_regmap_init(pmc->dev, NULL, pmc, &usb_sleepwalk_regmap_config); + if (IS_ERR(regmap)) { + err = PTR_ERR(regmap); + dev_err(pmc->dev, "failed to allocate register map (%d)\n", err); + return err; + } + } + + return 0; +} + static int tegra_pmc_probe(struct platform_device *pdev) { void __iomem *base; @@ -2548,6 +2775,10 @@ static int tegra_pmc_probe(struct platform_device *pdev) if (err) goto cleanup_restart_handler; + err = tegra_pmc_regmap_init(pmc); + if (err < 0) + goto cleanup_restart_handler; + err = tegra_powergate_init(pmc, pdev->dev.of_node); if (err < 0) goto cleanup_powergates; @@ -2699,6 +2930,7 @@ static const struct tegra_pmc_soc tegra20_pmc_soc = { .regs = &tegra20_pmc_regs, .init = tegra20_pmc_init, .setup_irq_polarity = tegra20_pmc_setup_irq_polarity, + .powergate_set = tegra20_powergate_set, .reset_sources = NULL, .num_reset_sources = 0, .reset_levels = NULL, @@ -2706,6 +2938,7 @@ static const struct tegra_pmc_soc tegra20_pmc_soc = { .pmc_clks_data = NULL, .num_pmc_clks = 0, .has_blink_output = true, + .has_usb_sleepwalk = false, }; static const char * const tegra30_powergates[] = { @@ -2757,6 +2990,7 @@ static const struct tegra_pmc_soc tegra30_pmc_soc = { .regs = &tegra20_pmc_regs, .init = tegra20_pmc_init, .setup_irq_polarity = tegra20_pmc_setup_irq_polarity, + .powergate_set = tegra20_powergate_set, .reset_sources = tegra30_reset_sources, .num_reset_sources = ARRAY_SIZE(tegra30_reset_sources), .reset_levels = NULL, @@ -2764,6 +2998,7 @@ static const struct tegra_pmc_soc tegra30_pmc_soc = { .pmc_clks_data = tegra_pmc_clks_data, .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data), .has_blink_output = true, + .has_usb_sleepwalk = false, }; static const char * const tegra114_powergates[] = { @@ -2811,6 +3046,7 @@ static const struct tegra_pmc_soc tegra114_pmc_soc = { .regs = &tegra20_pmc_regs, .init = tegra20_pmc_init, .setup_irq_polarity = tegra20_pmc_setup_irq_polarity, + .powergate_set = tegra114_powergate_set, .reset_sources = tegra30_reset_sources, .num_reset_sources = ARRAY_SIZE(tegra30_reset_sources), .reset_levels = NULL, @@ -2818,6 +3054,7 @@ static const struct tegra_pmc_soc tegra114_pmc_soc = { .pmc_clks_data = tegra_pmc_clks_data, .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data), .has_blink_output = true, + .has_usb_sleepwalk = false, }; static const char * const tegra124_powergates[] = { @@ -2925,6 +3162,7 @@ static const struct tegra_pmc_soc tegra124_pmc_soc = { .regs = &tegra20_pmc_regs, .init = tegra20_pmc_init, .setup_irq_polarity = tegra20_pmc_setup_irq_polarity, + .powergate_set = tegra114_powergate_set, .reset_sources = tegra30_reset_sources, .num_reset_sources = ARRAY_SIZE(tegra30_reset_sources), .reset_levels = NULL, @@ -2932,6 +3170,7 @@ static const struct tegra_pmc_soc tegra124_pmc_soc = { .pmc_clks_data = tegra_pmc_clks_data, .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data), .has_blink_output = true, + .has_usb_sleepwalk = true, }; static const char * const tegra210_powergates[] = { @@ -3048,6 +3287,7 @@ static const struct tegra_pmc_soc tegra210_pmc_soc = { .regs = &tegra20_pmc_regs, .init = tegra20_pmc_init, .setup_irq_polarity = tegra20_pmc_setup_irq_polarity, + .powergate_set = tegra114_powergate_set, .irq_set_wake = tegra210_pmc_irq_set_wake, .irq_set_type = tegra210_pmc_irq_set_type, .reset_sources = tegra210_reset_sources, @@ -3059,6 +3299,7 @@ static const struct tegra_pmc_soc tegra210_pmc_soc = { .pmc_clks_data = tegra_pmc_clks_data, .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data), .has_blink_output = true, + .has_usb_sleepwalk = true, }; #define TEGRA186_IO_PAD_TABLE(_pad) \ @@ -3214,6 +3455,7 @@ static const struct tegra_pmc_soc tegra186_pmc_soc = { .pmc_clks_data = NULL, .num_pmc_clks = 0, .has_blink_output = false, + .has_usb_sleepwalk = false, }; #define TEGRA194_IO_PAD_TABLE(_pad) \ @@ -3347,6 +3589,7 @@ static const struct tegra_pmc_soc tegra194_pmc_soc = { .pmc_clks_data = NULL, .num_pmc_clks = 0, .has_blink_output = false, + .has_usb_sleepwalk = false, }; static const struct tegra_pmc_regs tegra234_pmc_regs = { diff --git a/drivers/soc/tegra/regulators-tegra30.c b/drivers/soc/tegra/regulators-tegra30.c index 7f21f31de09d..0e776b20f625 100644 --- a/drivers/soc/tegra/regulators-tegra30.c +++ b/drivers/soc/tegra/regulators-tegra30.c @@ -178,7 +178,7 @@ static int tegra30_voltage_update(struct tegra_regulator_coupler *tegra, * survive the voltage drop if it's running on a higher frequency. */ if (!cpu_min_uV_consumers) - cpu_min_uV = cpu_uV; + cpu_min_uV = max(cpu_uV, cpu_min_uV); /* * Bootloader shall set up voltages correctly, but if it diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c index 8b2b4771f420..e39897c38e6a 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c @@ -2738,7 +2738,7 @@ static int vchiq_probe(struct platform_device *pdev) return -ENOENT; } - drvdata->fw = rpi_firmware_get(fw_node); + drvdata->fw = devm_rpi_firmware_get(&pdev->dev, fw_node); of_node_put(fw_node); if (!drvdata->fw) return -EPROBE_DEFER; diff --git a/drivers/tee/optee/Makefile b/drivers/tee/optee/Makefile index 56263ae3b1d7..3aa33ea9e6a6 100644 --- a/drivers/tee/optee/Makefile +++ b/drivers/tee/optee/Makefile @@ -6,3 +6,6 @@ optee-objs += rpc.o optee-objs += supp.o optee-objs += shm_pool.o optee-objs += device.o + +# for tracing framework to find optee_trace.h +CFLAGS_call.o := -I$(src) diff --git a/drivers/tee/optee/call.c b/drivers/tee/optee/call.c index 7a77e375b503..6132cc8d014c 100644 --- a/drivers/tee/optee/call.c +++ b/drivers/tee/optee/call.c @@ -14,6 +14,8 @@ #include <linux/uaccess.h> #include "optee_private.h" #include "optee_smc.h" +#define CREATE_TRACE_POINTS +#include "optee_trace.h" struct optee_call_waiter { struct list_head list_node; @@ -138,9 +140,11 @@ u32 optee_do_call_with_arg(struct tee_context *ctx, phys_addr_t parg) while (true) { struct arm_smccc_res res; + trace_optee_invoke_fn_begin(¶m); optee->invoke_fn(param.a0, param.a1, param.a2, param.a3, param.a4, param.a5, param.a6, param.a7, &res); + trace_optee_invoke_fn_end(¶m, &res); if (res.a0 == OPTEE_SMC_RETURN_ETHREAD_LIMIT) { /* diff --git a/drivers/tee/optee/core.c b/drivers/tee/optee/core.c index 319a1e701163..ddb8f9ecf307 100644 --- a/drivers/tee/optee/core.c +++ b/drivers/tee/optee/core.c @@ -79,16 +79,6 @@ int optee_from_msg_param(struct tee_param *params, size_t num_params, return rc; p->u.memref.shm_offs = mp->u.tmem.buf_ptr - pa; p->u.memref.shm = shm; - - /* Check that the memref is covered by the shm object */ - if (p->u.memref.size) { - size_t o = p->u.memref.shm_offs + - p->u.memref.size - 1; - - rc = tee_shm_get_pa(shm, o, NULL); - if (rc) - return rc; - } break; case OPTEE_MSG_ATTR_TYPE_RMEM_INPUT: case OPTEE_MSG_ATTR_TYPE_RMEM_OUTPUT: diff --git a/drivers/tee/optee/optee_trace.h b/drivers/tee/optee/optee_trace.h new file mode 100644 index 000000000000..7c954eefa4bf --- /dev/null +++ b/drivers/tee/optee/optee_trace.h @@ -0,0 +1,67 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * optee trace points + * + * Copyright (C) 2021 Synaptics Incorporated + * Author: Jisheng Zhang <jszhang@kernel.org> + */ + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM optee + +#if !defined(_TRACE_OPTEE_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_OPTEE_H + +#include <linux/arm-smccc.h> +#include <linux/tracepoint.h> +#include "optee_private.h" + +TRACE_EVENT(optee_invoke_fn_begin, + TP_PROTO(struct optee_rpc_param *param), + TP_ARGS(param), + + TP_STRUCT__entry( + __field(void *, param) + __array(u32, args, 8) + ), + + TP_fast_assign( + __entry->param = param; + BUILD_BUG_ON(sizeof(*param) < sizeof(__entry->args)); + memcpy(__entry->args, param, sizeof(__entry->args)); + ), + + TP_printk("param=%p (%x, %x, %x, %x, %x, %x, %x, %x)", __entry->param, + __entry->args[0], __entry->args[1], __entry->args[2], + __entry->args[3], __entry->args[4], __entry->args[5], + __entry->args[6], __entry->args[7]) +); + +TRACE_EVENT(optee_invoke_fn_end, + TP_PROTO(struct optee_rpc_param *param, struct arm_smccc_res *res), + TP_ARGS(param, res), + + TP_STRUCT__entry( + __field(void *, param) + __array(unsigned long, rets, 4) + ), + + TP_fast_assign( + __entry->param = param; + BUILD_BUG_ON(sizeof(*res) < sizeof(__entry->rets)); + memcpy(__entry->rets, res, sizeof(__entry->rets)); + ), + + TP_printk("param=%p ret (%lx, %lx, %lx, %lx)", __entry->param, + __entry->rets[0], __entry->rets[1], __entry->rets[2], + __entry->rets[3]) +); +#endif /* _TRACE_OPTEE_H */ + +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH . +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_FILE optee_trace + +/* This part must be outside protection */ +#include <trace/define_trace.h> diff --git a/drivers/tty/serial/ucc_uart.c b/drivers/tty/serial/ucc_uart.c index d6a8604157ab..f81261cb52b8 100644 --- a/drivers/tty/serial/ucc_uart.c +++ b/drivers/tty/serial/ucc_uart.c @@ -261,11 +261,11 @@ static unsigned int qe_uart_tx_empty(struct uart_port *port) struct qe_bd *bdp = qe_port->tx_bd_base; while (1) { - if (qe_ioread16be(&bdp->status) & BD_SC_READY) + if (ioread16be(&bdp->status) & BD_SC_READY) /* This BD is not done, so return "not done" */ return 0; - if (qe_ioread16be(&bdp->status) & BD_SC_WRAP) + if (ioread16be(&bdp->status) & BD_SC_WRAP) /* * This BD is done and it's the last one, so return * "done" @@ -344,10 +344,10 @@ static int qe_uart_tx_pump(struct uart_qe_port *qe_port) p = qe2cpu_addr(be32_to_cpu(bdp->buf), qe_port); *p++ = port->x_char; - qe_iowrite16be(1, &bdp->length); + iowrite16be(1, &bdp->length); qe_setbits_be16(&bdp->status, BD_SC_READY); /* Get next BD. */ - if (qe_ioread16be(&bdp->status) & BD_SC_WRAP) + if (ioread16be(&bdp->status) & BD_SC_WRAP) bdp = qe_port->tx_bd_base; else bdp++; @@ -366,7 +366,7 @@ static int qe_uart_tx_pump(struct uart_qe_port *qe_port) /* Pick next descriptor and fill from buffer */ bdp = qe_port->tx_cur; - while (!(qe_ioread16be(&bdp->status) & BD_SC_READY) && + while (!(ioread16be(&bdp->status) & BD_SC_READY) && (xmit->tail != xmit->head)) { count = 0; p = qe2cpu_addr(be32_to_cpu(bdp->buf), qe_port); @@ -379,11 +379,11 @@ static int qe_uart_tx_pump(struct uart_qe_port *qe_port) break; } - qe_iowrite16be(count, &bdp->length); + iowrite16be(count, &bdp->length); qe_setbits_be16(&bdp->status, BD_SC_READY); /* Get next BD. */ - if (qe_ioread16be(&bdp->status) & BD_SC_WRAP) + if (ioread16be(&bdp->status) & BD_SC_WRAP) bdp = qe_port->tx_bd_base; else bdp++; @@ -416,7 +416,7 @@ static void qe_uart_start_tx(struct uart_port *port) container_of(port, struct uart_qe_port, port); /* If we currently are transmitting, then just return */ - if (qe_ioread16be(&qe_port->uccp->uccm) & UCC_UART_UCCE_TX) + if (ioread16be(&qe_port->uccp->uccm) & UCC_UART_UCCE_TX) return; /* Otherwise, pump the port and start transmission */ @@ -471,14 +471,14 @@ static void qe_uart_int_rx(struct uart_qe_port *qe_port) */ bdp = qe_port->rx_cur; while (1) { - status = qe_ioread16be(&bdp->status); + status = ioread16be(&bdp->status); /* If this one is empty, then we assume we've read them all */ if (status & BD_SC_EMPTY) break; /* get number of characters, and check space in RX buffer */ - i = qe_ioread16be(&bdp->length); + i = ioread16be(&bdp->length); /* If we don't have enough room in RX buffer for the entire BD, * then we try later, which will be the next RX interrupt. @@ -512,7 +512,7 @@ error_return: qe_clrsetbits_be16(&bdp->status, BD_SC_BR | BD_SC_FR | BD_SC_PR | BD_SC_OV | BD_SC_ID, BD_SC_EMPTY); - if (qe_ioread16be(&bdp->status) & BD_SC_WRAP) + if (ioread16be(&bdp->status) & BD_SC_WRAP) bdp = qe_port->rx_bd_base; else bdp++; @@ -569,8 +569,8 @@ static irqreturn_t qe_uart_int(int irq, void *data) u16 events; /* Clear the interrupts */ - events = qe_ioread16be(&uccp->ucce); - qe_iowrite16be(events, &uccp->ucce); + events = ioread16be(&uccp->ucce); + iowrite16be(events, &uccp->ucce); if (events & UCC_UART_UCCE_BRKE) uart_handle_break(&qe_port->port); @@ -601,17 +601,17 @@ static void qe_uart_initbd(struct uart_qe_port *qe_port) bdp = qe_port->rx_bd_base; qe_port->rx_cur = qe_port->rx_bd_base; for (i = 0; i < (qe_port->rx_nrfifos - 1); i++) { - qe_iowrite16be(BD_SC_EMPTY | BD_SC_INTRPT, &bdp->status); - qe_iowrite32be(cpu2qe_addr(bd_virt, qe_port), &bdp->buf); - qe_iowrite16be(0, &bdp->length); + iowrite16be(BD_SC_EMPTY | BD_SC_INTRPT, &bdp->status); + iowrite32be(cpu2qe_addr(bd_virt, qe_port), &bdp->buf); + iowrite16be(0, &bdp->length); bd_virt += qe_port->rx_fifosize; bdp++; } /* */ - qe_iowrite16be(BD_SC_WRAP | BD_SC_EMPTY | BD_SC_INTRPT, &bdp->status); - qe_iowrite32be(cpu2qe_addr(bd_virt, qe_port), &bdp->buf); - qe_iowrite16be(0, &bdp->length); + iowrite16be(BD_SC_WRAP | BD_SC_EMPTY | BD_SC_INTRPT, &bdp->status); + iowrite32be(cpu2qe_addr(bd_virt, qe_port), &bdp->buf); + iowrite16be(0, &bdp->length); /* Set the physical address of the host memory * buffers in the buffer descriptors, and the @@ -622,9 +622,9 @@ static void qe_uart_initbd(struct uart_qe_port *qe_port) qe_port->tx_cur = qe_port->tx_bd_base; bdp = qe_port->tx_bd_base; for (i = 0; i < (qe_port->tx_nrfifos - 1); i++) { - qe_iowrite16be(BD_SC_INTRPT, &bdp->status); - qe_iowrite32be(cpu2qe_addr(bd_virt, qe_port), &bdp->buf); - qe_iowrite16be(0, &bdp->length); + iowrite16be(BD_SC_INTRPT, &bdp->status); + iowrite32be(cpu2qe_addr(bd_virt, qe_port), &bdp->buf); + iowrite16be(0, &bdp->length); bd_virt += qe_port->tx_fifosize; bdp++; } @@ -634,9 +634,9 @@ static void qe_uart_initbd(struct uart_qe_port *qe_port) qe_setbits_be16(&qe_port->tx_cur->status, BD_SC_P); #endif - qe_iowrite16be(BD_SC_WRAP | BD_SC_INTRPT, &bdp->status); - qe_iowrite32be(cpu2qe_addr(bd_virt, qe_port), &bdp->buf); - qe_iowrite16be(0, &bdp->length); + iowrite16be(BD_SC_WRAP | BD_SC_INTRPT, &bdp->status); + iowrite32be(cpu2qe_addr(bd_virt, qe_port), &bdp->buf); + iowrite16be(0, &bdp->length); } /* @@ -658,21 +658,21 @@ static void qe_uart_init_ucc(struct uart_qe_port *qe_port) ucc_slow_disable(qe_port->us_private, COMM_DIR_RX_AND_TX); /* Program the UCC UART parameter RAM */ - qe_iowrite8(UCC_BMR_GBL | UCC_BMR_BO_BE, &uccup->common.rbmr); - qe_iowrite8(UCC_BMR_GBL | UCC_BMR_BO_BE, &uccup->common.tbmr); - qe_iowrite16be(qe_port->rx_fifosize, &uccup->common.mrblr); - qe_iowrite16be(0x10, &uccup->maxidl); - qe_iowrite16be(1, &uccup->brkcr); - qe_iowrite16be(0, &uccup->parec); - qe_iowrite16be(0, &uccup->frmec); - qe_iowrite16be(0, &uccup->nosec); - qe_iowrite16be(0, &uccup->brkec); - qe_iowrite16be(0, &uccup->uaddr[0]); - qe_iowrite16be(0, &uccup->uaddr[1]); - qe_iowrite16be(0, &uccup->toseq); + iowrite8(UCC_BMR_GBL | UCC_BMR_BO_BE, &uccup->common.rbmr); + iowrite8(UCC_BMR_GBL | UCC_BMR_BO_BE, &uccup->common.tbmr); + iowrite16be(qe_port->rx_fifosize, &uccup->common.mrblr); + iowrite16be(0x10, &uccup->maxidl); + iowrite16be(1, &uccup->brkcr); + iowrite16be(0, &uccup->parec); + iowrite16be(0, &uccup->frmec); + iowrite16be(0, &uccup->nosec); + iowrite16be(0, &uccup->brkec); + iowrite16be(0, &uccup->uaddr[0]); + iowrite16be(0, &uccup->uaddr[1]); + iowrite16be(0, &uccup->toseq); for (i = 0; i < 8; i++) - qe_iowrite16be(0xC000, &uccup->cchars[i]); - qe_iowrite16be(0xc0ff, &uccup->rccm); + iowrite16be(0xC000, &uccup->cchars[i]); + iowrite16be(0xc0ff, &uccup->rccm); /* Configure the GUMR registers for UART */ if (soft_uart) { @@ -702,30 +702,30 @@ static void qe_uart_init_ucc(struct uart_qe_port *qe_port) #endif /* Disable rx interrupts and clear all pending events. */ - qe_iowrite16be(0, &uccp->uccm); - qe_iowrite16be(0xffff, &uccp->ucce); - qe_iowrite16be(0x7e7e, &uccp->udsr); + iowrite16be(0, &uccp->uccm); + iowrite16be(0xffff, &uccp->ucce); + iowrite16be(0x7e7e, &uccp->udsr); /* Initialize UPSMR */ - qe_iowrite16be(0, &uccp->upsmr); + iowrite16be(0, &uccp->upsmr); if (soft_uart) { - qe_iowrite16be(0x30, &uccup->supsmr); - qe_iowrite16be(0, &uccup->res92); - qe_iowrite32be(0, &uccup->rx_state); - qe_iowrite32be(0, &uccup->rx_cnt); - qe_iowrite8(0, &uccup->rx_bitmark); - qe_iowrite8(10, &uccup->rx_length); - qe_iowrite32be(0x4000, &uccup->dump_ptr); - qe_iowrite8(0, &uccup->rx_temp_dlst_qe); - qe_iowrite32be(0, &uccup->rx_frame_rem); - qe_iowrite8(0, &uccup->rx_frame_rem_size); + iowrite16be(0x30, &uccup->supsmr); + iowrite16be(0, &uccup->res92); + iowrite32be(0, &uccup->rx_state); + iowrite32be(0, &uccup->rx_cnt); + iowrite8(0, &uccup->rx_bitmark); + iowrite8(10, &uccup->rx_length); + iowrite32be(0x4000, &uccup->dump_ptr); + iowrite8(0, &uccup->rx_temp_dlst_qe); + iowrite32be(0, &uccup->rx_frame_rem); + iowrite8(0, &uccup->rx_frame_rem_size); /* Soft-UART requires TX to be 1X */ - qe_iowrite8(UCC_UART_TX_STATE_UART | UCC_UART_TX_STATE_X1, + iowrite8(UCC_UART_TX_STATE_UART | UCC_UART_TX_STATE_X1, &uccup->tx_mode); - qe_iowrite16be(0, &uccup->tx_state); - qe_iowrite8(0, &uccup->resD4); - qe_iowrite16be(0, &uccup->resD5); + iowrite16be(0, &uccup->tx_state); + iowrite8(0, &uccup->resD4); + iowrite16be(0, &uccup->resD5); /* Set UART mode. * Enable receive and transmit. @@ -850,9 +850,9 @@ static void qe_uart_set_termios(struct uart_port *port, struct ucc_slow __iomem *uccp = qe_port->uccp; unsigned int baud; unsigned long flags; - u16 upsmr = qe_ioread16be(&uccp->upsmr); + u16 upsmr = ioread16be(&uccp->upsmr); struct ucc_uart_pram __iomem *uccup = qe_port->uccup; - u16 supsmr = qe_ioread16be(&uccup->supsmr); + u16 supsmr = ioread16be(&uccup->supsmr); u8 char_length = 2; /* 1 + CL + PEN + 1 + SL */ /* Character length programmed into the mode register is the @@ -950,10 +950,10 @@ static void qe_uart_set_termios(struct uart_port *port, /* Update the per-port timeout. */ uart_update_timeout(port, termios->c_cflag, baud); - qe_iowrite16be(upsmr, &uccp->upsmr); + iowrite16be(upsmr, &uccp->upsmr); if (soft_uart) { - qe_iowrite16be(supsmr, &uccup->supsmr); - qe_iowrite8(char_length, &uccup->rx_length); + iowrite16be(supsmr, &uccup->supsmr); + iowrite8(char_length, &uccup->rx_length); /* Soft-UART requires a 1X multiplier for TX */ qe_setbrg(qe_port->us_info.rx_clock, baud, 16); |