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2018-06-13Merge tag 'overflow-v4.18-rc1-part2' of ↵Linus Torvalds1-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull more overflow updates from Kees Cook: "The rest of the overflow changes for v4.18-rc1. This includes the explicit overflow fixes from Silvio, further struct_size() conversions from Matthew, and a bug fix from Dan. But the bulk of it is the treewide conversions to use either the 2-factor argument allocators (e.g. kmalloc(a * b, ...) into kmalloc_array(a, b, ...) or the array_size() macros (e.g. vmalloc(a * b) into vmalloc(array_size(a, b)). Coccinelle was fighting me on several fronts, so I've done a bunch of manual whitespace updates in the patches as well. Summary: - Error path bug fix for overflow tests (Dan) - Additional struct_size() conversions (Matthew, Kees) - Explicitly reported overflow fixes (Silvio, Kees) - Add missing kvcalloc() function (Kees) - Treewide conversions of allocators to use either 2-factor argument variant when available, or array_size() and array3_size() as needed (Kees)" * tag 'overflow-v4.18-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (26 commits) treewide: Use array_size in f2fs_kvzalloc() treewide: Use array_size() in f2fs_kzalloc() treewide: Use array_size() in f2fs_kmalloc() treewide: Use array_size() in sock_kmalloc() treewide: Use array_size() in kvzalloc_node() treewide: Use array_size() in vzalloc_node() treewide: Use array_size() in vzalloc() treewide: Use array_size() in vmalloc() treewide: devm_kzalloc() -> devm_kcalloc() treewide: devm_kmalloc() -> devm_kmalloc_array() treewide: kvzalloc() -> kvcalloc() treewide: kvmalloc() -> kvmalloc_array() treewide: kzalloc_node() -> kcalloc_node() treewide: kzalloc() -> kcalloc() treewide: kmalloc() -> kmalloc_array() mm: Introduce kvcalloc() video: uvesafb: Fix integer overflow in allocation UBIFS: Fix potential integer overflow in allocation leds: Use struct_size() in allocation Convert intel uncore to struct_size ...
2018-06-13treewide: devm_kzalloc() -> devm_kcalloc()Kees Cook1-3/+3
The devm_kzalloc() function has a 2-factor argument form, devm_kcalloc(). This patch replaces cases of: devm_kzalloc(handle, a * b, gfp) with: devm_kcalloc(handle, a * b, gfp) as well as handling cases of: devm_kzalloc(handle, a * b * c, gfp) with: devm_kzalloc(handle, array3_size(a, b, c), gfp) as it's slightly less ugly than: devm_kcalloc(handle, array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: devm_kzalloc(handle, 4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. Some manual whitespace fixes were needed in this patch, as Coccinelle really liked to write "=devm_kcalloc..." instead of "= devm_kcalloc...". The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ expression HANDLE; type TYPE; expression THING, E; @@ ( devm_kzalloc(HANDLE, - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | devm_kzalloc(HANDLE, - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression HANDLE; expression COUNT; typedef u8; typedef __u8; @@ ( devm_kzalloc(HANDLE, - sizeof(u8) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(__u8) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(char) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(unsigned char) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(u8) * COUNT + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(__u8) * COUNT + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(char) * COUNT + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ expression HANDLE; type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ expression HANDLE; identifier SIZE, COUNT; @@ - devm_kzalloc + devm_kcalloc (HANDLE, - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression HANDLE; expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( devm_kzalloc(HANDLE, - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression HANDLE; expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ expression HANDLE; identifier STRIDE, SIZE, COUNT; @@ ( devm_kzalloc(HANDLE, - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression HANDLE; expression E1, E2, E3; constant C1, C2, C3; @@ ( devm_kzalloc(HANDLE, C1 * C2 * C3, ...) | devm_kzalloc(HANDLE, - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | devm_kzalloc(HANDLE, - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | devm_kzalloc(HANDLE, - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | devm_kzalloc(HANDLE, - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression HANDLE; expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( devm_kzalloc(HANDLE, sizeof(THING) * C2, ...) | devm_kzalloc(HANDLE, sizeof(TYPE) * C2, ...) | devm_kzalloc(HANDLE, C1 * C2 * C3, ...) | devm_kzalloc(HANDLE, C1 * C2, ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - (E1) * E2 + E1, E2 , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - (E1) * (E2) + E1, E2 , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-12Merge tag 'armsoc-drivers' of ↵Linus Torvalds3-65/+97
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Olof Johansson: "This contains platform-related driver updates for ARM and ARM64. Highlights: - ARM SCMI (System Control & Management Interface) driver cleanups - Hisilicon support for LPC bus w/ ACPI - Reset driver updates for several platforms: Uniphier, - Rockchip power domain bindings and hardware descriptions for several SoCs. - Tegra memory controller reset improvements" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (59 commits) ARM: tegra: fix compile-testing PCI host driver soc: rockchip: power-domain: add power domain support for px30 dt-bindings: power: add binding for px30 power domains dt-bindings: power: add PX30 SoCs header for power-domain soc: rockchip: power-domain: add power domain support for rk3228 dt-bindings: power: add binding for rk3228 power domains dt-bindings: power: add RK3228 SoCs header for power-domain soc: rockchip: power-domain: add power domain support for rk3128 dt-bindings: power: add binding for rk3128 power domains dt-bindings: power: add RK3128 SoCs header for power-domain soc: rockchip: power-domain: add power domain support for rk3036 dt-bindings: power: add binding for rk3036 power domains dt-bindings: power: add RK3036 SoCs header for power-domain dt-bindings: memory: tegra: Remove Tegra114 SATA and AFI reset definitions memory: tegra: Remove Tegra114 SATA and AFI reset definitions memory: tegra: Register SMMU after MC driver became ready soc: mediatek: remove unneeded semicolon soc: mediatek: add a fixed wait for SRAM stable soc: mediatek: introduce a CAPS flag for scp_domain_data soc: mediatek: reuse regmap_read_poll_timeout helpers ...
2018-06-12Merge tag 'armsoc-soc' of ↵Linus Torvalds1-43/+345
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates from Olof Johansson: "Here are the main updates for SoC support (besides DT additions) for ARM 32- and 64-bit platforms. The branch also contains defconfig updates to turn on drivers and options as needed on the various platforms. The largest parts of the delta are from cleanups moving platform data and board file setup of TI platforms to ti-sysc bus drivers. There are also some sweeping changes of eeprom and nand setup on Davinci, i.MX and other platforms. Samsung is removing support for Exynos5440, which was an oddball SoC that hasn't been seen much use in designs. Renesas is adding support for new SoCs (R-Car E3, RZ/G1C and RZ/N1D). Linus Walleij is also removing support for ux500 (Sony Ericsson) U8540/9540 SoCs that never made it to significant mass production and products" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (133 commits) MAINTAINERS: add NXP linux team maillist as i.MX reviewer ARM: stm32: Don't select DMA unconditionally on STM32MP157C arm64: defconfig: Enable PCIe on msm8996 and db820c ARM: pxa3xx: enable external wakeup pins ARM: pxa: stargate2: use device properties for at24 eeprom arm64: defconfig: Enable HISILICON_LPC arm64: defconfig: enable drivers for Poplar support arm64: defconfig: Enable UFS on msm8996 ARM: berlin: switch to SPDX license identifier arm: berlin: remove non-necessary flush_cache_all() ARM: berlin: extend BG2CD Kconfig entry OMAP: CLK: CLKSRC: Add suspend resume hooks ARM: AM43XX: Add functions to save/restore am43xx control registers ASoC: ams_delta: use GPIO lookup table ARM: OMAP1: ams-delta: add GPIO lookup tables bus: ti-sysc: Fix optional clocks array access ARM: OMAP2+: Make sure LOGICRETSTATE bits are not cleared ARM: OMAP2+: prm44xx: Inroduce cpu_pm notifiers for context save/restore ARM: OMAP2+: prm44xx: Introduce context save/restore for am43 PRCM IO ARM: OMAP2+: powerdomain: Introduce cpu_pm notifiers for context save/restore ...
2018-05-26Merge tag 'omap-for-v4.18/ti-sysc-fix-signed' of ↵Olof Johansson1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc One ti-sysc fix for v4.18 merge window This fixes an array access errors if there are more optional clocks than one. * tag 'omap-for-v4.18/ti-sysc-fix-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: bus: ti-sysc: Fix optional clocks array access Signed-off-by: Olof Johansson <olof@lixom.net>
2018-05-18bus: ti-sysc: Fix optional clocks array accessTony Lindgren1-1/+1
We should be checking ddata->clocks[i] instead of clock_names[i] for the optional clocks. Currently this just happens to work for the typical case of one fck and one optional clock. Fixes: 09dfe5810762 ("bus: ti-sysc: Add handling for clkctrl opt clocks") Cc: Dan Carpenter <dan.carpenter@oracle.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-05-14Merge tag 'hisi-drivers-for-4.18' of git://github.com/hisilicon/linux-hisi ↵Olof Johansson2-63/+97
into next/drivers ARM64: hisi: SoC driver updates for 4.18 - Update hisi LPC bus driver to use the platform driver APIs other than the MFD APIs to support connected device like UART * tag 'hisi-drivers-for-4.18' of git://github.com/hisilicon/linux-hisi: HISI LPC: Add ACPI UART support HISI LPC: Re-Add ACPI child enumeration support HISI LPC: Stop using MFD APIs Signed-off-by: Olof Johansson <olof@lixom.net>
2018-05-14Merge tag 'v4.17-rc5' into irq/core, to pick up fixesIngo Molnar1-0/+1
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-05-14bus: arm-cci: remove unnecessary unreachable()Stefan Agner1-2/+0
Mixing asm and C code is not recommended in a naked function by gcc and leads to an error when using clang: drivers/bus/arm-cci.c:2107:2: error: non-ASM statement in naked function is not supported unreachable(); ^ While the function is marked __naked it actually properly return in asm. There is no need for the unreachable() call. GCC 7.2 generates identical object files before and after, other than (for obvious reasons) the line numbers generated by WANT_WARN_ON_SLOWPATH for all the WARN()s appearing later in the file. Suggested-by: Russell King <linux@arm.linux.org.uk> Signed-off-by: Stefan Agner <stefan@agner.ch> Acked-by: Nicolas Pitre <nico@linaro.org> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2018-05-14Merge tag 'omap-for-v4.18/ti-sysc-signed' of ↵Olof Johansson1-43/+345
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc ti-sysc driver related changes for omap variants This series improves the ti-sysc interconnect target module driver to the point where a most of SoC can be booted with interconnect target module data configured in device tree instead of legacy platform data. The related device tree changes need some more work though, and can wait for v4.19. Also some drivers using nested interconnects like DSS need more work. We can now remove the unused pm-noop code that is not doing anything any longer. And we can now initialize things for PM and display pdata later to prepare things for using ti-sysc driver. We also need to add some more quirk handling so we can boot both with platform data and dts data. * tag 'omap-for-v4.18/ti-sysc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: bus: ti-sysc: Show module information for suspend if DEBUG is enabled bus: ti-sysc: Tag sdio and wdt with legacy mode for suspend bus: ti-sysc: Detect UARTs for SYSC_QUIRK_LEGACY_IDLE quirk on omap4 bus: ti-sysc: Detect omap4 type timers for quirk bus: ti-sysc: Add initial support for external resets bus: ti-sysc: Improve suspend and resume handling bus: ti-sysc: Tag some modules resource providers for noirq suspend bus: ti-sysc: Add handling for clkctrl opt clocks bus: ti-sysc: Make child clock alias handling more generic bus: ti-sysc: Handle simple-bus for nested children ARM: OMAP2+: Make display related init into device_initcall ARM: OMAP2+: Initialize SoC PM later ARM: OMAP2+: Only probe SDMA via ti-sysc if configured in dts ARM: OMAP2+: Use signed value for sysc register offsets ARM: OMAP2+: Allow using ti-sysc for system timers ARM: OMAP2+: Drop unused pm-noop Signed-off-by: Olof Johansson <olof@lixom.net>
2018-05-13genirq/msi: Limit level-triggered MSI to platform devicesMarc Zyngier1-0/+2
Nobody would be insane enough to try and use level triggered MSIs on PCI, but let's make sure it doesn't happen. Also, let's mandate that the irqchip backing the platform MSI domain is providing the IRQCHIP_SUPPORTS_LEVEL_MSI flag. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Rob Herring <robh@kernel.org> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Cc: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lkml.kernel.org/r/20180508121438.11301-3-marc.zyngier@arm.com
2018-05-10HISI LPC: Add ACPI UART supportJohn Garry1-0/+17
On the Huawei D03 development board the system UART is the UART connected on the LPC bus. The profile for the device driver required for this HW is as follows: - platform driver - 16550 - ACPI support - polling mode support - IO space support In principle we should use the PNP driver (8250_dw.c) for 8250-devices with ACPI FW. However since this driver does not support PNP devices, and modifying the PNP core code to support it is not worth the effort, use the generic 8250 isa driver. For this, we setup the pdev platform data for the serial 8250 port. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2018-05-10HISI LPC: Re-Add ACPI child enumeration supportJohn Garry1-0/+74
Since we no longer use the MFD APIs to enumerate the child devices on the bus, use the platform driver APIs directly. In this patch we iterate of the children devices for the host, and create a platform device directly per child. For the iterating, we match the child ACPI HID against a known list of supported child devices and their respective ACPIs HID, to find the device name and any other supplementary data. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2018-05-10HISI LPC: Stop using MFD APIsJohn Garry2-65/+8
The MFD APIs should only be used by drivers in drivers/mfd. It is not worth splitting the driver to have separate parts in drivers/bus and drivers/mfd, so just drop MFD API usage. As a solution, we will use the platform device APIs directly to achieve the same as we had when using MFD APIs. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2018-05-01bus: ti-sysc: Show module information for suspend if DEBUG is enabledTony Lindgren1-0/+18
Let's show module info if DEBUG is enabled to make it easier to follow what happens on the suspend and resume path. Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-05-01bus: ti-sysc: Tag sdio and wdt with legacy mode for suspendTony Lindgren1-0/+8
Looks like these two device drivers don't yet behave properly for suspend unless configured with the legacy option. Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-05-01bus: ti-sysc: Detect UARTs for SYSC_QUIRK_LEGACY_IDLE quirk on omap4Tony Lindgren1-0/+3
Starting with omap4, UARTs have different revision register that we need to detect to enable SYSC_QUIRK_LEGACY_IDLE. Otherwise UARTs won't idle properly. Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-05-01bus: ti-sysc: Detect omap4 type timers for quirkTony Lindgren1-0/+3
Starting with omap4 some timers have different sysc registers (type2) compared to the omap2 timers (type1). We need to detect these to enable the quirk for SYSC_QUIRK_LEGACY_IDLE, otherwise these won't be idling properly. Siganed-off-by: Tony Lindgren <tony@atomide.com>
2018-05-01bus: ti-sysc: Add initial support for external resetsTony Lindgren1-1/+47
Some modules need to use external resets in the rstctrl bits. Typically only one of the rstctrl bits is for the interconnect target module while the others are for various child devices. For ti-sysc driver, we just need the module rstctrl bit mapped. The rest of the rstctrl bits can be directly mapped to the child devices. Cc: Suman Anna <s-anna@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-05-01bus: ti-sysc: Improve suspend and resume handlingTony Lindgren1-6/+48
Based on testing with more devices I noticed that some devices don't suspend or resume properly. We need to PM runtime suspend and resume devices if we have ddata->needs_resume set. Let's also improve the error handling and add few debug statements to make it easier to notice suspend and resume related issues if DEBUG is set. Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-05-01bus: ti-sysc: Tag some modules resource providers for noirq suspendTony Lindgren1-0/+77
Modules that provide resources for other modules need to be suspended and resumed in the noirq calls. Tag the resource providing modules. Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-04-30bus: ti-sysc: Add handling for clkctrl opt clocksTony Lindgren1-25/+115
There can be up to eight optional device functional gate gate clocks for each clkctrl instance in clkctrl register bits 8 to 15. Some of them are only needed for module level reset while others may always be needed during use. Let's add support for those and update the binding doc accordingly. Note that the optional clkctrl mux and divider clocks starting at bit 20 can be directly mapped to the child devices, and ti-sysc does not need to manage those. And as GPIOs need the optional clocks for reset, we can now add it with SYSC_QUIRK_OPT_CLKS_IN_RESET. Cc: Mark Rutland <mark.rutland@arm.com> Cc: Tero Kristo <t-kristo@ti.com> Cc: devicetree@vger.kernel.org Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-04-30bus: ti-sysc: Make child clock alias handling more genericTony Lindgren1-13/+23
In order to prepare supporting clkctrl optional clocks, we need to make the current child clock handling more generic so we can use the clock role names for the optional clocks in the following patch. Cc: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-04-30bus: ti-sysc: Handle simple-bus for nested childrenTony Lindgren1-2/+7
Otherwise child devices that some interconnect target module devices have won't probe using simple-bus. Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-04-26HISI LPC: Add Kconfig MFD_CORE dependencyJohn Garry1-0/+1
For ACPI support of the HiSilicon LPC driver we depend on MFD_CORE config. Currently the HiSi LPC Kconfig entry does not define this dependency, so add it. The reason for depending on MFD_CORE in the driver is that we model the LPC host as an MFD, in that a platform device will be created for each device on the bus. We do this as we need to modify the resources of these derived platform devices, something which we should not do to the original devices created in the ACPI scan. Details in e0aa1563f894 ("HISI LPC: Add ACPI support"). Fixes: e0aa1563f894 ("HISI LPC: Add ACPI support") Reported-and-tested-by: Tan Xiaojun <tanxiaojun@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-04-07Merge tag 'pci-v4.17-changes' of ↵Linus Torvalds3-0/+625
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: - move pci_uevent_ers() out of pci.h (Michael Ellerman) - skip ASPM common clock warning if BIOS already configured it (Sinan Kaya) - fix ASPM Coverity warning about threshold_ns (Gustavo A. R. Silva) - remove last user of pci_get_bus_and_slot() and the function itself (Sinan Kaya) - add decoding for 16 GT/s link speed (Jay Fang) - add interfaces to get max link speed and width (Tal Gilboa) - add pcie_bandwidth_capable() to compute max supported link bandwidth (Tal Gilboa) - add pcie_bandwidth_available() to compute bandwidth available to device (Tal Gilboa) - add pcie_print_link_status() to log link speed and whether it's limited (Tal Gilboa) - use PCI core interfaces to report when device performance may be limited by its slot instead of doing it in each driver (Tal Gilboa) - fix possible cpqphp NULL pointer dereference (Shawn Lin) - rescan more of the hierarchy on ACPI hotplug to fix Thunderbolt/xHCI hotplug (Mika Westerberg) - add support for PCI I/O port space that's neither directly accessible via CPU in/out instructions nor directly mapped into CPU physical memory space. This is fairly intrusive and includes minor changes to interfaces used for I/O space on most platforms (Zhichang Yuan, John Garry) - add support for HiSilicon Hip06/Hip07 LPC I/O space (Zhichang Yuan, John Garry) - use PCI_EXP_DEVCTL2_COMP_TIMEOUT in rapidio/tsi721 (Bjorn Helgaas) - remove possible NULL pointer dereference in of_pci_bus_find_domain_nr() (Shawn Lin) - report quirk timings with dev_info (Bjorn Helgaas) - report quirks that take longer than 10ms (Bjorn Helgaas) - add and use Altera Vendor ID (Johannes Thumshirn) - tidy Makefiles and comments (Bjorn Helgaas) - don't set up INTx if MSI or MSI-X is enabled to align cris, frv, ia64, and mn10300 with x86 (Bjorn Helgaas) - move pcieport_if.h to drivers/pci/pcie/ to encapsulate it (Frederick Lawler) - merge pcieport_if.h into portdrv.h (Bjorn Helgaas) - move workaround for BIOS PME issue from portdrv to PCI core (Bjorn Helgaas) - completely disable portdrv with "pcie_ports=compat" (Bjorn Helgaas) - remove portdrv link order dependency (Bjorn Helgaas) - remove support for unused VC portdrv service (Bjorn Helgaas) - simplify portdrv feature permission checking (Bjorn Helgaas) - remove "pcie_hp=nomsi" parameter (use "pci=nomsi" instead) (Bjorn Helgaas) - remove unnecessary "pcie_ports=auto" parameter (Bjorn Helgaas) - use cached AER capability offset (Frederick Lawler) - don't enable DPC if BIOS hasn't granted AER control (Mika Westerberg) - rename pcie-dpc.c to dpc.c (Bjorn Helgaas) - use generic pci_mmap_resource_range() instead of powerpc and xtensa arch-specific versions (David Woodhouse) - support arbitrary PCI host bridge offsets on sparc (Yinghai Lu) - remove System and Video ROM reservations on sparc (Bjorn Helgaas) - probe for device reset support during enumeration instead of runtime (Bjorn Helgaas) - add ACS quirk for Ampere (née APM) root ports (Feng Kan) - add function 1 DMA alias quirk for Marvell 88SE9220 (Thomas Vincent-Cross) - protect device restore with device lock (Sinan Kaya) - handle failure of FLR gracefully (Sinan Kaya) - handle CRS (config retry status) after device resets (Sinan Kaya) - skip various config reads for SR-IOV VFs as an optimization (KarimAllah Ahmed) - consolidate VPD code in vpd.c (Bjorn Helgaas) - add Tegra dependency on PCI_MSI_IRQ_DOMAIN (Arnd Bergmann) - add DT support for R-Car r8a7743 (Biju Das) - fix a PCI_EJECT vs PCI_BUS_RELATIONS race condition in Hyper-V host bridge driver that causes a general protection fault (Dexuan Cui) - fix Hyper-V host bridge hang in MSI setup on 1-vCPU VMs with SR-IOV (Dexuan Cui) - fix Hyper-V host bridge hang when ejecting a VF before setting up MSI (Dexuan Cui) - make several structures static (Fengguang Wu) - increase number of MSI IRQs supported by Synopsys DesignWare bridges from 32 to 256 (Gustavo Pimentel) - implemented multiplexed IRQ domain API and remove obsolete MSI IRQ API from DesignWare drivers (Gustavo Pimentel) - add Tegra power management support (Manikanta Maddireddy) - add Tegra loadable module support (Manikanta Maddireddy) - handle 64-bit BARs correctly in endpoint support (Niklas Cassel) - support optional regulator for HiSilicon STB (Shawn Guo) - use regulator bulk API for Qualcomm apq8064 (Srinivas Kandagatla) - support power supplies for Qualcomm msm8996 (Srinivas Kandagatla) * tag 'pci-v4.17-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (123 commits) MAINTAINERS: Add John Garry as maintainer for HiSilicon LPC driver HISI LPC: Add ACPI support ACPI / scan: Do not enumerate Indirect IO host children ACPI / scan: Rename acpi_is_serial_bus_slave() for more general use HISI LPC: Support the LPC host on Hip06/Hip07 with DT bindings of: Add missing I/O range exception for indirect-IO devices PCI: Apply the new generic I/O management on PCI IO hosts PCI: Add fwnode handler as input param of pci_register_io_range() PCI: Remove __weak tag from pci_register_io_range() MAINTAINERS: Add missing /drivers/pci/cadence directory entry fm10k: Report PCIe link properties with pcie_print_link_status() net/mlx5e: Use pcie_bandwidth_available() to compute bandwidth net/mlx5: Report PCIe link properties with pcie_print_link_status() net/mlx4_core: Report PCIe link properties with pcie_print_link_status() PCI: Add pcie_print_link_status() to log link speed and whether it's limited PCI: Add pcie_bandwidth_available() to compute bandwidth available to device misc: pci_endpoint_test: Handle 64-bit BARs properly PCI: designware-ep: Make dw_pcie_ep_reset_bar() handle 64-bit BARs properly PCI: endpoint: Make sure that BAR_5 does not have 64-bit flag set when clearing PCI: endpoint: Make epc->ops->clear_bar()/pci_epc_clear_bar() take struct *epf_bar ...
2018-04-06Merge tag 'armsoc-drivers' of ↵Linus Torvalds4-3384/+14
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Arnd Bergmann: "The main addition this time around is the new ARM "SCMI" framework, which is the latest in a series of standards coming from ARM to do power management in a platform independent way. This has been through many review cycles, and it relies on a rather interesting way of using the mailbox subsystem, but in the end I agreed that Sudeep's version was the best we could do after all. Other changes include: - the ARM CCN driver is moved out of drivers/bus into drivers/perf, which makes more sense. Similarly, the performance monitoring portion of the CCI driver are moved the same way and cleaned up a little more. - a series of updates to the SCPI framework - support for the Mediatek mt7623a SoC in drivers/soc - support for additional NVIDIA Tegra hardware in drivers/soc - a new reset driver for Socionext Uniphier - lesser bug fixes in drivers/soc, drivers/tee, drivers/memory, and drivers/firmware and drivers/reset across platforms" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (87 commits) reset: uniphier: add ethernet reset control support for PXs3 reset: stm32mp1: Enable stm32mp1 reset driver dt-bindings: reset: add STM32MP1 resets reset: uniphier: add Pro4/Pro5/PXs2 audio systems reset control reset: imx7: add 'depends on HAS_IOMEM' to fix unmet dependency reset: modify the way reset lookup works for board files reset: add support for non-DT systems clk: scmi: use devm_of_clk_add_hw_provider() API and drop scmi_clocks_remove firmware: arm_scmi: prevent accessing rate_discrete uninitialized hwmon: (scmi) return -EINVAL when sensor information is unavailable amlogic: meson-gx-socinfo: Update soc ids soc/tegra: pmc: Use the new reset APIs to manage reset controllers soc: mediatek: update power domain data of MT2712 dt-bindings: soc: update MT2712 power dt-bindings cpufreq: scmi: add thermal dependency soc: mediatek: fix the mistaken pointer accessed when subdomains are added soc: mediatek: add SCPSYS power domain driver for MediaTek MT7623A SoC soc: mediatek: avoid hardcoded value with bus_prot_mask dt-bindings: soc: add header files required for MT7623A SCPSYS dt-binding dt-bindings: soc: add SCPSYS binding for MT7623 and MT7623A SoC ...
2018-04-06Merge tag 'armsoc-soc' of ↵Linus Torvalds1-33/+493
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates from Arnd Bergmann: "This release brings up a new platform based on the old ARM9 core: the Nuvoton NPCM is used as a baseboard management controller, competing with the better known ASpeed AST2xx series. Another important change is the addition of ARMv7-A based chips in mach-stm32. The older parts in this platform are ARMv7-M based microcontrollers, now they are expanding to general-purpose workloads. The other changes are the usual defconfig updates to enable additional drivers, lesser bugfixes. The largest updates as often are the ongoing OMAP cleanups, but we also have a number of changes for the older PXA and davinci platforms this time. For the Renesas shmobile/r-car platform, some new infrastructure is needed to make the watchdog work correctly. Supporting Multiprocessing on Allwinner A80 required a significant amount of new code, but is not doing anything unexpected" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (179 commits) arm: npcm: modify configuration for the NPCM7xx BMC. MAINTAINERS: update entry for ARM/berlin ARM: omap2: fix am43xx build without L2X0 ARM: davinci: da8xx: simplify CFGCHIP regmap_config ARM: davinci: da8xx: fix oops in USB PHY driver due to stack allocated platform_data ARM: multi_v7_defconfig: add NXP FlexCAN IP support ARM: multi_v7_defconfig: enable thermal driver for i.MX devices ARM: multi_v7_defconfig: add RN5T618 PMIC family support ARM: multi_v7_defconfig: add NXP graphics drivers ARM: multi_v7_defconfig: add GPMI NAND controller support ARM: multi_v7_defconfig: add OCOTP driver for NXP SoCs ARM: multi_v7_defconfig: configure I2C driver built-in arm64: defconfig: add CONFIG_UNIPHIER_THERMAL and CONFIG_SNI_AVE ARM: imx: fix imx6sll-only build ARM: imx: select ARM_CPU_SUSPEND for CPU_IDLE as well ARM: mxs_defconfig: Re-sync defconfig ARM: imx_v4_v5_defconfig: Use the generic fsl-asoc-card driver ARM: imx_v4_v5_defconfig: Re-sync defconfig arm64: defconfig: enable stmmac ethernet to defconfig ARM: EXYNOS: Simplify code in coupled CPU idle hot path ...
2018-04-05Merge tag 'staging-4.17-rc1' of ↵Linus Torvalds15-0/+4902
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging/IIO updates from Greg KH: "Here is the big set of Staging/IIO driver patches for 4.17-rc1. It is a lot, over 500 changes, but not huge by previous kernel release standards. We deleted more lines than we added again (27k added vs. 91k remvoed), thanks to finally being able to delete the IRDA drivers and networking code. We also deleted the ccree crypto driver, but that's coming back in through the crypto tree to you, in a much cleaned-up form. Added this round is at lot of "mt7621" device support, which is for an embedded device that Neil Brown cares about, and of course a handful of new IIO drivers as well. And finally, the fsl-mc core code moved out of the staging tree to the "real" part of the kernel, which is nice to see happen as well. Full details are in the shortlog, which has all of the tiny cleanup patches described. All of these have been in linux-next for a while with no reported issues" * tag 'staging-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (579 commits) staging: rtl8723bs: Remove yield call, replace with cond_resched() staging: rtl8723bs: Replace yield() call with cond_resched() staging: rtl8723bs: Remove unecessary newlines from 'odm.h'. staging: rtl8723bs: Rework 'struct _ODM_Phy_Status_Info_' coding style. staging: rtl8723bs: Rework 'struct _ODM_Per_Pkt_Info_' coding style. staging: rtl8723bs: Replace NULL pointer comparison with '!'. staging: rtl8723bs: Factor out rtl8723bs_recv_tasklet() sections. staging: rtl8723bs: Fix function signature that goes over 80 characters. staging: rtl8723bs: Fix lines too long in update_recvframe_attrib(). staging: rtl8723bs: Remove unnecessary blank lines in 'rtl8723bs_recv.c'. staging: rtl8723bs: Change camel case to snake case in 'rtl8723bs_recv.c'. staging: rtl8723bs: Add missing braces in else statement. staging: rtl8723bs: Add spaces around ternary operators. staging: rtl8723bs: Fix lines with trailing open parentheses. staging: rtl8723bs: Remove unnecessary length #define's. staging: rtl8723bs: Fix IEEE80211 authentication algorithm constants. staging: rtl8723bs: Fix alignment in rtw_wx_set_auth(). staging: rtl8723bs: Remove braces from single statement conditionals. staging: rtl8723bs: Remove unecessary braces from switch statement. staging: rtl8723bs: Fix newlines in rtw_wx_set_auth(). ...
2018-04-04HISI LPC: Add ACPI supportJohn Garry1-4/+204
Based on the previous patches, this patch supports the LPC host on Hip06/Hip07 for ACPI FW. It is the responsibility of the LPC host driver to enumerate the child devices, as the ACPI scan code will not enumerate children of "indirect IO" hosts. The ACPI table for the LPC host controller and the child devices is in the following format: Device (LPC0) { Name (_HID, "HISI0191") // HiSi LPC Name (_CRS, ResourceTemplate () { Memory32Fixed (ReadWrite, 0xa01b0000, 0x1000) }) } Device (LPC0.IPMI) { Name (_HID, "IPI0001") Name (LORS, ResourceTemplate() { QWordIO ( ResourceConsumer, MinNotFixed, // _MIF MaxNotFixed, // _MAF PosDecode, EntireRange, 0x0, // _GRA 0xe4, // _MIN 0x3fff, // _MAX 0x0, // _TRA 0x04, // _LEN , , BTIO ) }) Since the IO resources of the child devices need to be translated from LPC bus addresses to logical PIO addresses, and we shouldn't modify the resources of the devices generated in the FW scan, a per-child MFD is created as a substitute. The MFD IO resources will be the translated bus addresses of the ACPI child. Tested-by: dann frazier <dann.frazier@canonical.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Zhichang Yuan <yuanzhichang@hisilicon.com> Signed-off-by: Gabriele Paoloni <gabriele.paoloni@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
2018-04-04HISI LPC: Support the LPC host on Hip06/Hip07 with DT bindingsZhichang Yuan3-0/+424
The low-pin-count (LPC) interface of Hip06/Hip07 accesses I/O port space of peripherals. Implement the LPC host controller driver which performs the I/O operations on the underlying hardware. We don't want to touch existing drivers such as ipmi-bt, so this driver applies the indirect-IO introduced in the previous patch after registering an indirect-IO node to the indirect-IO devices list which will be searched by the I/O accessors to retrieve the host-local I/O port. The driver config is set as a bool instead of a tristate. The reason here is that, by the very nature of the driver providing a logical PIO range, it does not make sense to have this driver as a loadable module. Another more specific reason is that the Huawei D03 board which includes Hip06 SoC requires the LPC bus for UART console, so should be built in. Tested-by: dann frazier <dann.frazier@canonical.com> Signed-off-by: Zou Rongrong <zourongrong@huawei.com> Signed-off-by: Zhichang Yuan <yuanzhichang@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Acked-by: Rob Herring <robh@kernel.org> # dts part
2018-03-23bus: fsl-mc: add fsl_mc_allocator cleanup functionIoana Ciornei2-0/+7
The userspace support for fsl-mc requires a fsl_mc_allocator cleanup function. Add the needed function. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-23bus: fsl-mc: change mc_command in fsl_mc_commandIoana Ciornei6-41/+41
The "struct mc_command" is a very generic name for a global kernel structure. Change its name in "struct fsl_mc_command". Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-19Merge 4.16-rc6 into staging-nextGreg Kroah-Hartman1-1/+1
We want the staging fixes in here as well to handle merge/test issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-16perf: Fix sibling iterationPeter Zijlstra2-3/+3
Mark noticed that the change to sibling_list changed some iteration semantics; because previously we used group_list as list entry, sibling events would always have an empty sibling_list. But because we now use sibling_list for both list head and list entry, siblings will report as having siblings. Fix this with a custom for_each_sibling_event() iterator. Fixes: 8343aae66167 ("perf/core: Remove perf_event::group_entry") Reported-by: Mark Rutland <mark.rutland@arm.com> Suggested-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: vincent.weaver@maine.edu Cc: alexander.shishkin@linux.intel.com Cc: torvalds@linux-foundation.org Cc: alexey.budankov@linux.intel.com Cc: valery.cherepennikov@intel.com Cc: eranian@google.com Cc: acme@redhat.com Cc: linux-tip-commits@vger.kernel.org Cc: davidcc@google.com Cc: kan.liang@intel.com Cc: Dmitry.Prohorov@intel.com Cc: jolsa@redhat.com Link: https://lkml.kernel.org/r/20180315170129.GX4043@hirez.programming.kicks-ass.net
2018-03-14staging: fsl-mc: Move DPCON out of stagingBogdan Purcareata3-0/+271
Move the source files out of staging into their final locations: - dpcon.c goes to drivers/bus/fsl-mc/, next to the core infrastructure - dpcon-cmd.h gets merged into drivers/bus/fsl-mc/fsl-mc-private.h, next to the other internally used APIs - dpcon.h gets merged into include/linux/fsl/mc.h, exposing the public API Update references in the dpaa2-eth staging driver. DPCON stands for Data Path Concentrator - an interface between DPIO (Data Path IO) and its users (e.g. dpaa2-eth). You can read more about DPIO in Documentation/networking/dpaa2/overview.rst Signed-off-by: Bogdan Purcareata <bogdan.purcareata@nxp.com> Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-14staging: fsl-mc: Move DPBP out of stagingBogdan Purcareata3-0/+226
Move the source files out of staging into their final locations: - dpbp.c goes to drivers/bus/fsl-mc/, next to the core infrastructure - dpbp-cmd.h gets merged into drivers/bus/fsl-mc/fsl-mc-private.h, next to the other internally used APIs - dpbp.h gets merged into include/linux/fsl/mc.h, exposing the public API Update references in the dpaa2-eth staging driver. DPBP stands for Data Path Buffer Pool - you can read more about the object in Documentation/networking/dpaa2/overview.rst Signed-off-by: Bogdan Purcareata <bogdan.purcareata@nxp.com> Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-12perf/core: Remove perf_event::group_entryPeter Zijlstra2-2/+2
Now that all the grouping is done with RB trees, we no longer need group_entry and can replace the whole thing with sibling_list. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexey Budankov <alexey.budankov@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Carrillo-Cisneros <davidcc@google.com> Cc: Dmitri Prokhorov <Dmitry.Prohorov@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Valery Cherepennikov <valery.cherepennikov@intel.com> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-03-07Merge tag 'omap-for-v4.17/ti-sysc-signed' of ↵Arnd Bergmann1-33/+493
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc Pull "Driver changes for ti-sysc for v4.17" from Tony Lindgren: This series of changes enables the use device tree based sysconfig data for ti-sysc driver. As we already have SmartReflex data configured, we use that as the first driver to enable. To do that in a way where SmartReflex is not probed twice, we need to prepare the SmartReflex driver before flipping dts data on for it in the last patch of the series. To avoid regressions, we are checking the passed dts data against existing platform data since we still have it available. Then after the dts files are converted, we can simply drop the related platform data at some point in the future. * tag 'omap-for-v4.17/ti-sysc-signed' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP2+: Enable ti-sysc to use device tree data for smartreflex PM / AVS: SmartReflex: Prepare to use device tree based probing ARM: OMAP2+: Try to parse earlycon from parent too ARM: OMAP2+: Add checks for device tree based sysconfig data ARM: OMAP2+: Add functions to allocate module data from device tree bus: ti-sysc: Handle some devices in omap_device compatible way bus: ti-sysc: Add support for platform data callbacks bus: ti-sysc: Remove unnecessary debugging statements bus: ti-sysc: Improve handling for no-reset-on-init and no-idle-on-init bus: ti-sysc: Handle stdout-path for debug console bus: ti-sysc: Add suspend and resume handling bus: ti-sysc: Add fck clock alias for children with notifier_block ARM: OMAP2+: Prepare to pass auxdata for smartreflex
2018-03-06perf/arm-cci: Untangle global cci_ctrl_baseRobin Murphy1-4/+13
Depending directly on the bus driver's global cci_ctrl_base variable is a little unpleasant, and exporting it to allow the PMU driver to be modular would be even more so. Let's make things a little better abstracted by adding the control register block to the cci_pmu instance data alongside the PMU register block, and communicating the mapped address from the bus driver via platform data. It's not practical to try the same thing for the bus driver itself, given that the globals are entangled with the hairy assembly code for port control, so we leave them be there. It would however be prudent to move them to the __ro_after_init section in passing, since the addresses really should never be changing once set. Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-03-06bus/arm-cci: Streamline devicetree handling a bitRobin Murphy1-5/+2
Rather than iterating over child nodes explicitly testing for availability, we can just use the other helper which already subsumes that check. Also, the availability check is already NULL-safe, so get rid of a redundant check in cci_probe(), too. Acked-by: Punit Agrawal <punit.agrawal@arm.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-03-06drivers/bus: Split Arm CCI driverRobin Murphy2-1771/+2
The arm-cci driver is really two entirely separate drivers; one for MCPM port control and the other for the performance monitors. Since they are already relatively self-contained, let's take the plunge and move the PMU parts out to drivers/perf where they belong these days. For non-MCPM systems this leaves a small dependency on the remaining "bus" stub for initial probing and discovery, but we end up with something that still fits the general pattern of its fellow system PMU drivers to ease future maintenance. Moving code to a new file also offers a perfect excuse to modernise the license/copyright headers and clean up some funky linewraps on the way. Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Suzuki Poulose <suzuki.poulose@arm.com> Acked-by: Punit Agrawal <punit.agrawal@arm.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-03-06drivers/bus: Move Arm CCN PMU driverRobin Murphy3-1607/+0
The arm-ccn driver is purely a perf driver for the CCN PMU, not a bus driver in the sense of the other residents of drivers/bus/, so let's move it to the appropriate place for SoC PMU drivers. Not to mention moving the documentation accordingly as well. Acked-by: Pawel Moll <pawel.moll@arm.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-02-27bus: ti-sysc: Handle some devices in omap_device compatible wayTony Lindgren1-3/+223
Now that ti-sysc can manage child devices, we must also be backwards compatible with the current omap_device code. With omap_device, we assume that the child device manages the interconnect target module directly. The drivers needing special handling are the ones that still set pm_runtime_irq_safe(). In the long run we want to update those drivers as otherwise they will cause problems with genpd as a permanent PM runtime usage count is set on the parent device. We can handle omap_device these devices by improving the ti-sysc quirk handling to detect the devices needing special handling based on register map and revision register if usable. We also need to implement dev_pm_domain for these child devices just like omap_device does. Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-02-27bus: ti-sysc: Add support for platform data callbacksTony Lindgren1-14/+82
We want to pass the device tree configuration for interconnect target modules from ti-sysc driver to the existing platform hwmod code. This allows us to first validate the dts data against the existing platform data before we start dropping the platform data in favor of device tree data. To do this, let's add platform data callbacks for PM runtime functions to call for the interconnect target modules if platform data is available. Note that as ti-sysc driver can rebind, omap_auxdata_lookup and related functions can no longer be __init. Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-02-27bus: ti-sysc: Remove unnecessary debugging statementsTony Lindgren1-8/+1
We already show the status for the interconnect target module when debugging is enabled, there's no need to be more verbose about that. So let's just cut down the noise and remove the extra debug statements. Signed-off-by: Tony Lindgren <tony@atomide.coM>
2018-02-27bus: ti-sysc: Improve handling for no-reset-on-init and no-idle-on-initTony Lindgren1-6/+22
At least earlycon needs a delayed idle before the 8250 driver probes to avoid glitches in the console output. Let's handle the delayed idle for devices tagged with ti,no-reset-on-init and ti,no-idle-on-init with delayed_work. Others don't need it, and there should be no need to use runtime PM autosuspend for the interconnect target driver as it's the child device drivers that should configure it. Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-02-27bus: ti-sysc: Handle stdout-path for debug consoleTony Lindgren1-0/+46
If we have stdout-path specified for earlycon, we must prevent the debug console from idling until runtime PM kicks in. Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-02-27bus: ti-sysc: Add suspend and resume handlingTony Lindgren1-0/+34
This allows us to idle the module on suspend after the children are suspended. Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-02-27bus: ti-sysc: Add fck clock alias for children with notifier_blockTony Lindgren1-4/+87
The functional clock is used by several child device drivers to query the rate for the child device internal configuration. The functional clock is really for the whole interconnect target module, and not just for the child device, and can also be shared across multiple children. At least the timers, i2c and mmc driver query the fck for rate. So let's just create a clock alias for the child fck if it does not yet exits. We can do this with the BUS_NOTIFY_ADD_DEVICE before the child is probed. Note that we need to now also remove the legacy mode check for getting the dts clocks in ti-sysc driver. Signed-off-by: Tony Lindgren <tony@atomide.com>
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-28 01:20:15 +0300