diff options
Diffstat (limited to 'drivers')
84 files changed, 2464 insertions, 434 deletions
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c index 8c234dd9b8bc..80cc7c089a15 100644 --- a/drivers/acpi/nfit/core.c +++ b/drivers/acpi/nfit/core.c @@ -1527,11 +1527,12 @@ static u32 read_blk_stat(struct nfit_blk *nfit_blk, unsigned int bw) { struct nfit_blk_mmio *mmio = &nfit_blk->mmio[DCR]; u64 offset = nfit_blk->stat_offset + mmio->size * bw; + const u32 STATUS_MASK = 0x80000037; if (mmio->num_lines) offset = to_interleave_offset(offset, mmio); - return readl(mmio->addr.base + offset); + return readl(mmio->addr.base + offset) & STATUS_MASK; } static void write_blk_ctl(struct nfit_blk *nfit_blk, unsigned int bw, diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 1a04af6d2421..6c6519f6492a 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -3950,6 +3950,7 @@ static void rbd_dev_release(struct device *dev) bool need_put = !!rbd_dev->opts; ceph_oid_destroy(&rbd_dev->header_oid); + ceph_oloc_destroy(&rbd_dev->header_oloc); rbd_put_client(rbd_dev->rbd_client); rbd_spec_put(rbd_dev->spec); @@ -5336,15 +5337,6 @@ static ssize_t do_rbd_add(struct bus_type *bus, } spec->pool_id = (u64)rc; - /* The ceph file layout needs to fit pool id in 32 bits */ - - if (spec->pool_id > (u64)U32_MAX) { - rbd_warn(NULL, "pool id too large (%llu > %u)", - (unsigned long long)spec->pool_id, U32_MAX); - rc = -EIO; - goto err_out_client; - } - rbd_dev = rbd_dev_create(rbdc, spec, rbd_opts); if (!rbd_dev) { rc = -ENOMEM; diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 1523e05c46fc..93b1aaa5ba3b 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -391,22 +391,16 @@ static int init_vq(struct virtio_blk *vblk) num_vqs = 1; vblk->vqs = kmalloc(sizeof(*vblk->vqs) * num_vqs, GFP_KERNEL); - if (!vblk->vqs) { - err = -ENOMEM; - goto out; - } + if (!vblk->vqs) + return -ENOMEM; names = kmalloc(sizeof(*names) * num_vqs, GFP_KERNEL); - if (!names) - goto err_names; - callbacks = kmalloc(sizeof(*callbacks) * num_vqs, GFP_KERNEL); - if (!callbacks) - goto err_callbacks; - vqs = kmalloc(sizeof(*vqs) * num_vqs, GFP_KERNEL); - if (!vqs) - goto err_vqs; + if (!names || !callbacks || !vqs) { + err = -ENOMEM; + goto out; + } for (i = 0; i < num_vqs; i++) { callbacks[i] = virtblk_done; @@ -417,7 +411,7 @@ static int init_vq(struct virtio_blk *vblk) /* Discover virtqueues and write information to configuration. */ err = vdev->config->find_vqs(vdev, num_vqs, vqs, callbacks, names); if (err) - goto err_find_vqs; + goto out; for (i = 0; i < num_vqs; i++) { spin_lock_init(&vblk->vqs[i].lock); @@ -425,16 +419,12 @@ static int init_vq(struct virtio_blk *vblk) } vblk->num_vqs = num_vqs; - err_find_vqs: +out: kfree(vqs); - err_vqs: kfree(callbacks); - err_callbacks: kfree(names); - err_names: if (err) kfree(vblk->vqs); - out: return err; } diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c index 28bce3f4f81d..57700541f951 100644 --- a/drivers/clocksource/arm_arch_timer.c +++ b/drivers/clocksource/arm_arch_timer.c @@ -8,6 +8,9 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ + +#define pr_fmt(fmt) "arm_arch_timer: " fmt + #include <linux/init.h> #include <linux/kernel.h> #include <linux/device.h> @@ -370,16 +373,33 @@ static bool arch_timer_has_nonsecure_ppi(void) arch_timer_ppi[PHYS_NONSECURE_PPI]); } +static u32 check_ppi_trigger(int irq) +{ + u32 flags = irq_get_trigger_type(irq); + + if (flags != IRQF_TRIGGER_HIGH && flags != IRQF_TRIGGER_LOW) { + pr_warn("WARNING: Invalid trigger for IRQ%d, assuming level low\n", irq); + pr_warn("WARNING: Please fix your firmware\n"); + flags = IRQF_TRIGGER_LOW; + } + + return flags; +} + static int arch_timer_starting_cpu(unsigned int cpu) { struct clock_event_device *clk = this_cpu_ptr(arch_timer_evt); + u32 flags; __arch_timer_setup(ARCH_CP15_TIMER, clk); - enable_percpu_irq(arch_timer_ppi[arch_timer_uses_ppi], 0); + flags = check_ppi_trigger(arch_timer_ppi[arch_timer_uses_ppi]); + enable_percpu_irq(arch_timer_ppi[arch_timer_uses_ppi], flags); - if (arch_timer_has_nonsecure_ppi()) - enable_percpu_irq(arch_timer_ppi[PHYS_NONSECURE_PPI], 0); + if (arch_timer_has_nonsecure_ppi()) { + flags = check_ppi_trigger(arch_timer_ppi[PHYS_NONSECURE_PPI]); + enable_percpu_irq(arch_timer_ppi[PHYS_NONSECURE_PPI], flags); + } arch_counter_set_user_access(); if (evtstrm_enable) diff --git a/drivers/cpufreq/powernv-cpufreq.c b/drivers/cpufreq/powernv-cpufreq.c index 87796e0864e9..d3ffde806629 100644 --- a/drivers/cpufreq/powernv-cpufreq.c +++ b/drivers/cpufreq/powernv-cpufreq.c @@ -145,11 +145,30 @@ static struct powernv_pstate_info { /* Use following macros for conversions between pstate_id and index */ static inline int idx_to_pstate(unsigned int i) { + if (unlikely(i >= powernv_pstate_info.nr_pstates)) { + pr_warn_once("index %u is out of bound\n", i); + return powernv_freqs[powernv_pstate_info.nominal].driver_data; + } + return powernv_freqs[i].driver_data; } static inline unsigned int pstate_to_idx(int pstate) { + int min = powernv_freqs[powernv_pstate_info.min].driver_data; + int max = powernv_freqs[powernv_pstate_info.max].driver_data; + + if (min > 0) { + if (unlikely((pstate < max) || (pstate > min))) { + pr_warn_once("pstate %d is out of bound\n", pstate); + return powernv_pstate_info.nominal; + } + } else { + if (unlikely((pstate > max) || (pstate < min))) { + pr_warn_once("pstate %d is out of bound\n", pstate); + return powernv_pstate_info.nominal; + } + } /* * abs() is deliberately used so that is works with * both monotonically increasing and decreasing @@ -593,7 +612,7 @@ void gpstate_timer_handler(unsigned long data) } else { gpstate_idx = calc_global_pstate(gpstates->elapsed_time, gpstates->highest_lpstate_idx, - freq_data.pstate_id); + gpstates->last_lpstate_idx); } /* diff --git a/drivers/firmware/efi/capsule-loader.c b/drivers/firmware/efi/capsule-loader.c index c99c24bc79b0..9ae6c116c474 100644 --- a/drivers/firmware/efi/capsule-loader.c +++ b/drivers/firmware/efi/capsule-loader.c @@ -16,6 +16,7 @@ #include <linux/slab.h> #include <linux/mutex.h> #include <linux/efi.h> +#include <linux/vmalloc.h> #define NO_FURTHER_WRITE_ACTION -1 @@ -108,14 +109,15 @@ static ssize_t efi_capsule_submit_update(struct capsule_info *cap_info) int ret; void *cap_hdr_temp; - cap_hdr_temp = kmap(cap_info->pages[0]); + cap_hdr_temp = vmap(cap_info->pages, cap_info->index, + VM_MAP, PAGE_KERNEL); if (!cap_hdr_temp) { - pr_debug("%s: kmap() failed\n", __func__); + pr_debug("%s: vmap() failed\n", __func__); return -EFAULT; } ret = efi_capsule_update(cap_hdr_temp, cap_info->pages); - kunmap(cap_info->pages[0]); + vunmap(cap_hdr_temp); if (ret) { pr_err("%s: efi_capsule_update() failed\n", __func__); return ret; diff --git a/drivers/firmware/efi/capsule.c b/drivers/firmware/efi/capsule.c index 53b9fd2293ee..6eedff45e6d7 100644 --- a/drivers/firmware/efi/capsule.c +++ b/drivers/firmware/efi/capsule.c @@ -190,9 +190,9 @@ efi_capsule_update_locked(efi_capsule_header_t *capsule, * map the capsule described by @capsule with its data in @pages and * send it to the firmware via the UpdateCapsule() runtime service. * - * @capsule must be a virtual mapping of the first page in @pages - * (@pages[0]) in the kernel address space. That is, a - * capsule_header_t that describes the entire contents of the capsule + * @capsule must be a virtual mapping of the complete capsule update in the + * kernel address space, as the capsule can be consumed immediately. + * A capsule_header_t that describes the entire contents of the capsule * must be at the start of the first data page. * * Even though this function will validate that the firmware supports diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 98dd47a30fc7..346e9a9b4397 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -874,6 +874,16 @@ config GPIO_LP3943 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. Open drain outputs are required for this usage. +config GPIO_LP873X + tristate "TI LP873X GPO" + depends on MFD_TI_LP873X + help + This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present + on LP873X PMICs. + + This driver can also be built as a module. If so, the module will be + called gpio-lp873x. + config GPIO_MAX77620 tristate "GPIO support for PMIC MAX77620 and MAX20024" depends on MFD_MAX77620 diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index 2a035ed8f168..d60432f2a126 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -56,6 +56,7 @@ obj-$(CONFIG_GPIO_LOONGSON) += gpio-loongson.o obj-$(CONFIG_GPIO_LP3943) += gpio-lp3943.o obj-$(CONFIG_GPIO_LPC18XX) += gpio-lpc18xx.o obj-$(CONFIG_ARCH_LPC32XX) += gpio-lpc32xx.o +obj-$(CONFIG_GPIO_LP873X) += gpio-lp873x.o obj-$(CONFIG_GPIO_LYNXPOINT) += gpio-lynxpoint.o obj-$(CONFIG_GPIO_MAX730X) += gpio-max730x.o obj-$(CONFIG_GPIO_MAX7300) += gpio-max7300.o diff --git a/drivers/gpio/gpio-lp873x.c b/drivers/gpio/gpio-lp873x.c new file mode 100644 index 000000000000..f10d49da1554 --- /dev/null +++ b/drivers/gpio/gpio-lp873x.c @@ -0,0 +1,193 @@ +/* + * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/ + * Keerthy <j-keerthy@ti.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether expressed or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License version 2 for more details. + * + * Based on the TPS65218 driver + */ + +#include <linux/gpio.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> + +#include <linux/mfd/lp873x.h> + +#define BITS_PER_GPO 0x4 +#define LP873X_GPO_CTRL_OD 0x2 + +struct lp873x_gpio { + struct gpio_chip chip; + struct lp873x *lp873; +}; + +static int lp873x_gpio_get_direction(struct gpio_chip *chip, + unsigned int offset) +{ + /* This device is output only */ + return 0; +} + +static int lp873x_gpio_direction_input(struct gpio_chip *chip, + unsigned int offset) +{ + /* This device is output only */ + return -EINVAL; +} + +static int lp873x_gpio_direction_output(struct gpio_chip *chip, + unsigned int offset, int value) +{ + struct lp873x_gpio *gpio = gpiochip_get_data(chip); + + /* Set the initial value */ + return regmap_update_bits(gpio->lp873->regmap, LP873X_REG_GPO_CTRL, + BIT(offset * BITS_PER_GPO), + value ? BIT(offset * BITS_PER_GPO) : 0); +} + +static int lp873x_gpio_get(struct gpio_chip *chip, unsigned int offset) +{ + struct lp873x_gpio *gpio = gpiochip_get_data(chip); + int ret, val; + + ret = regmap_read(gpio->lp873->regmap, LP873X_REG_GPO_CTRL, &val); + if (ret < 0) + return ret; + + return val & BIT(offset * BITS_PER_GPO); +} + +static void lp873x_gpio_set(struct gpio_chip *chip, unsigned int offset, + int value) +{ + struct lp873x_gpio *gpio = gpiochip_get_data(chip); + + regmap_update_bits(gpio->lp873->regmap, LP873X_REG_GPO_CTRL, + BIT(offset * BITS_PER_GPO), + value ? BIT(offset * BITS_PER_GPO) : 0); +} + +static int lp873x_gpio_request(struct gpio_chip *gc, unsigned int offset) +{ + struct lp873x_gpio *gpio = gpiochip_get_data(gc); + int ret; + + switch (offset) { + case 0: + /* No MUX Set up Needed for GPO */ + break; + case 1: + /* Setup the CLKIN_PIN_SEL MUX to GPO2 */ + ret = regmap_update_bits(gpio->lp873->regmap, LP873X_REG_CONFIG, + LP873X_CONFIG_CLKIN_PIN_SEL, 0); + if (ret) + return ret; + + break; + default: + return -EINVAL; + } + + return 0; +} + +static int lp873x_gpio_set_single_ended(struct gpio_chip *gc, + unsigned int offset, + enum single_ended_mode mode) +{ + struct lp873x_gpio *gpio = gpiochip_get_data(gc); + + switch (mode) { + case LINE_MODE_OPEN_DRAIN: + return regmap_update_bits(gpio->lp873->regmap, + LP873X_REG_GPO_CTRL, + BIT(offset * BITS_PER_GPO + + LP873X_GPO_CTRL_OD), + BIT(offset * BITS_PER_GPO + + LP873X_GPO_CTRL_OD)); + case LINE_MODE_PUSH_PULL: + return regmap_update_bits(gpio->lp873->regmap, + LP873X_REG_GPO_CTRL, + BIT(offset * BITS_PER_GPO + + LP873X_GPO_CTRL_OD), 0); + default: + return -ENOTSUPP; + } +} + +static struct gpio_chip template_chip = { + .label = "lp873x-gpio", + .owner = THIS_MODULE, + .request = lp873x_gpio_request, + .get_direction = lp873x_gpio_get_direction, + .direction_input = lp873x_gpio_direction_input, + .direction_output = lp873x_gpio_direction_output, + .get = lp873x_gpio_get, + .set = lp873x_gpio_set, + .set_single_ended = lp873x_gpio_set_single_ended, + .base = -1, + .ngpio = 2, + .can_sleep = true, +}; + +static int lp873x_gpio_probe(struct platform_device *pdev) +{ + struct lp873x_gpio *gpio; + int ret; + + gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL); + if (!gpio) + return -ENOMEM; + + platform_set_drvdata(pdev, gpio); + + gpio->lp873 = dev_get_drvdata(pdev->dev.parent); + gpio->chip = template_chip; + gpio->chip.parent = gpio->lp873->dev; + + ret = gpiochip_add_data(&gpio->chip, gpio); + if (ret < 0) { + dev_err(&pdev->dev, "Could not register gpiochip, %d\n", ret); + return ret; + } + + return 0; +} + +static int lp873x_gpio_remove(struct platform_device *pdev) +{ + struct lp873x_gpio *gpio = platform_get_drvdata(pdev); + + gpiochip_remove(&gpio->chip); + + return 0; +} + +static const struct platform_device_id lp873x_gpio_id_table[] = { + { "lp873x-gpio", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(platform, lp873x_gpio_id_table); + +static struct platform_driver lp873x_gpio_driver = { + .driver = { + .name = "lp873x-gpio", + }, + .probe = lp873x_gpio_probe, + .remove = lp873x_gpio_remove, + .id_table = lp873x_gpio_id_table, +}; +module_platform_driver(lp873x_gpio_driver); + +MODULE_AUTHOR("Keerthy <j-keerthy@ti.com>"); +MODULE_DESCRIPTION("LP873X GPIO driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c index ff63b88b0ffa..5cc7052e391d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c @@ -305,7 +305,7 @@ static ssize_t amdgpu_get_pp_table(struct device *dev, struct drm_device *ddev = dev_get_drvdata(dev); struct amdgpu_device *adev = ddev->dev_private; char *table = NULL; - int size, i; + int size; if (adev->pp_enabled) size = amdgpu_dpm_get_pp_table(adev, &table); @@ -315,10 +315,7 @@ static ssize_t amdgpu_get_pp_table(struct device *dev, if (size >= PAGE_SIZE) size = PAGE_SIZE - 1; - for (i = 0; i < size; i++) { - sprintf(buf + i, "%02x", table[i]); - } - sprintf(buf + i, "\n"); + memcpy(buf, table, size); return size; } diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index b7742e62972a..9b61c8ba7aaf 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -335,7 +335,7 @@ static int amdgpu_move_vram_ram(struct ttm_buffer_object *bo, if (unlikely(r)) { goto out_cleanup; } - r = ttm_bo_move_ttm(bo, true, no_wait_gpu, new_mem); + r = ttm_bo_move_ttm(bo, true, interruptible, no_wait_gpu, new_mem); out_cleanup: ttm_bo_mem_put(bo, &tmp_mem); return r; @@ -368,7 +368,7 @@ static int amdgpu_move_ram_vram(struct ttm_buffer_object *bo, if (unlikely(r)) { return r; } - r = ttm_bo_move_ttm(bo, true, no_wait_gpu, &tmp_mem); + r = ttm_bo_move_ttm(bo, true, interruptible, no_wait_gpu, &tmp_mem); if (unlikely(r)) { goto out_cleanup; } diff --git a/drivers/gpu/drm/amd/amdgpu/ci_dpm.c b/drivers/gpu/drm/amd/amdgpu/ci_dpm.c index e2f0e5d58d5c..a5c94b482459 100644 --- a/drivers/gpu/drm/amd/amdgpu/ci_dpm.c +++ b/drivers/gpu/drm/amd/amdgpu/ci_dpm.c @@ -5779,6 +5779,7 @@ static int ci_dpm_init_microcode(struct amdgpu_device *adev) break; case CHIP_KAVERI: case CHIP_KABINI: + case CHIP_MULLINS: default: BUG(); } diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c index bff8668e9e6d..b8184617ca25 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c @@ -270,7 +270,8 @@ static const u32 tonga_mgcg_cgcg_init[] = static const u32 golden_settings_polaris11_a11[] = { - mmCB_HW_CONTROL, 0xfffdf3cf, 0x00006208, + mmCB_HW_CONTROL, 0x0000f3cf, 0x00007208, + mmCB_HW_CONTROL_2, 0x0f000000, 0x0f000000, mmCB_HW_CONTROL_3, 0x000001ff, 0x00000040, mmDB_DEBUG2, 0xf00fffff, 0x00000400, mmPA_SC_ENHANCE, 0xffffffff, 0x20000001, @@ -279,7 +280,7 @@ static const u32 golden_settings_polaris11_a11[] = mmPA_SC_RASTER_CONFIG_1, 0x0000003f, 0x00000000, mmRLC_CGCG_CGLS_CTRL, 0x00000003, 0x0001003c, mmRLC_CGCG_CGLS_CTRL_3D, 0xffffffff, 0x0001003c, - mmSQ_CONFIG, 0x07f80000, 0x07180000, + mmSQ_CONFIG, 0x07f80000, 0x01180000, mmTA_CNTL_AUX, 0x000f000f, 0x000b0000, mmTCC_CTRL, 0x00100000, 0xf31fff7f, mmTCP_ADDR_CONFIG, 0x000003ff, 0x000000f3, @@ -301,8 +302,8 @@ static const u32 polaris11_golden_common_all[] = static const u32 golden_settings_polaris10_a11[] = { mmATC_MISC_CG, 0x000c0fc0, 0x000c0200, - mmCB_HW_CONTROL, 0xfffdf3cf, 0x00007208, - mmCB_HW_CONTROL_2, 0, 0x0f000000, + mmCB_HW_CONTROL, 0x0001f3cf, 0x00007208, + mmCB_HW_CONTROL_2, 0x0f000000, 0x0f000000, mmCB_HW_CONTROL_3, 0x000001ff, 0x00000040, mmDB_DEBUG2, 0xf00fffff, 0x00000400, mmPA_SC_ENHANCE, 0xffffffff, 0x20000001, @@ -409,6 +410,7 @@ static const u32 golden_settings_iceland_a11[] = mmPA_SC_LINE_STIPPLE_STATE, 0x0000ff0f, 0x00000000, mmPA_SC_RASTER_CONFIG, 0x3f3fffff, 0x00000002, mmPA_SC_RASTER_CONFIG_1, 0x0000003f, 0x00000000, + mmRLC_CGCG_CGLS_CTRL, 0x00000003, 0x0000003c, mmSQ_RANDOM_WAVE_PRI, 0x001fffff, 0x000006fd, mmTA_CNTL_AUX, 0x000f000f, 0x000b0000, mmTCC_CTRL, 0x00100000, 0xf31fff7f, @@ -505,8 +507,10 @@ static const u32 cz_golden_settings_a11[] = mmGB_GPU_ID, 0x0000000f, 0x00000000, mmPA_SC_ENHANCE, 0xffffffff, 0x00000001, mmPA_SC_LINE_STIPPLE_STATE, 0x0000ff0f, 0x00000000, + mmRLC_CGCG_CGLS_CTRL, 0x00000003, 0x0000003c, mmSQ_RANDOM_WAVE_PRI, 0x001fffff, 0x000006fd, mmTA_CNTL_AUX, 0x000f000f, 0x00010000, + mmTCC_CTRL, 0x00100000, 0xf31fff7f, mmTCC_EXE_DISABLE, 0x00000002, 0x00000002, mmTCP_ADDR_CONFIG, 0x0000000f, 0x000000f3, mmTCP_CHAN_STEER_LO, 0xffffffff, 0x00001302 diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c index d24a82bd0c7a..0b0f08641eed 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c @@ -144,6 +144,7 @@ static int gmc_v7_0_init_microcode(struct amdgpu_device *adev) break; case CHIP_KAVERI: case CHIP_KABINI: + case CHIP_MULLINS: return 0; default: BUG(); } diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c index 717359d3ba8c..2aee2c6f3cd5 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c @@ -103,6 +103,11 @@ static const u32 stoney_mgcg_cgcg_init[] = mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104 }; +static const u32 golden_settings_stoney_common[] = +{ + mmMC_HUB_RDREQ_UVD, MC_HUB_RDREQ_UVD__PRESCALE_MASK, 0x00000004, + mmMC_RD_GRP_OTH, MC_RD_GRP_OTH__UVD_MASK, 0x00600000 +}; static void gmc_v8_0_init_golden_registers(struct amdgpu_device *adev) { @@ -142,6 +147,9 @@ static void gmc_v8_0_init_golden_registers(struct amdgpu_device *adev) amdgpu_program_register_sequence(adev, stoney_mgcg_cgcg_init, (const u32)ARRAY_SIZE(stoney_mgcg_cgcg_init)); + amdgpu_program_register_sequence(adev, + golden_settings_stoney_common, + (const u32)ARRAY_SIZE(golden_settings_stoney_common)); break; default: break; diff --git a/drivers/gpu/drm/cirrus/cirrus_main.c b/drivers/gpu/drm/cirrus/cirrus_main.c index 80446e2d3ab6..76bcb43e7c06 100644 --- a/drivers/gpu/drm/cirrus/cirrus_main.c +++ b/drivers/gpu/drm/cirrus/cirrus_main.c @@ -185,14 +185,23 @@ int cirrus_driver_load(struct drm_device *dev, unsigned long flags) goto out; } + /* + * cirrus_modeset_init() is initializing/registering the emulated fbdev + * and DRM internals can access/test some of the fields in + * mode_config->funcs as part of the fbdev registration process. + * Make sure dev->mode_config.funcs is properly set to avoid + * dereferencing a NULL pointer. + * FIXME: mode_config.funcs assignment should probably be done in + * cirrus_modeset_init() (that's a common pattern seen in other DRM + * drivers). + */ + dev->mode_config.funcs = &cirrus_mode_funcs; r = cirrus_modeset_init(cdev); if (r) { dev_err(&dev->pdev->dev, "Fatal error during modeset init: %d\n", r); goto out; } - dev->mode_config.funcs = (void *)&cirrus_mode_funcs; - return 0; out: cirrus_driver_unload(dev); diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index f1d9f0569d7f..b1dbb60af99f 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -1121,16 +1121,14 @@ static int drm_connector_register_all(struct drm_device *dev) struct drm_connector *connector; int ret; - mutex_lock(&dev->mode_config.mutex); - - drm_for_each_connector(connector, dev) { + /* FIXME: taking the mode config mutex ends up in a clash with + * fbcon/backlight registration */ + list_for_each_entry(connector, &dev->mode_config.connector_list, head) { ret = drm_connector_register(connector); if (ret) goto err; } - mutex_unlock(&dev->mode_config.mutex); - return 0; err: diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 7df26d4b7ad8..637a0aa4d3a0 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -74,6 +74,8 @@ #define EDID_QUIRK_FORCE_8BPC (1 << 8) /* Force 12bpc */ #define EDID_QUIRK_FORCE_12BPC (1 << 9) +/* Force 6bpc */ +#define EDID_QUIRK_FORCE_6BPC (1 << 10) struct detailed_mode_closure { struct drm_connector *connector; @@ -100,6 +102,9 @@ static struct edid_quirk { /* Unknown Acer */ { "ACR", 2423, EDID_QUIRK_FIRST_DETAILED_PREFERRED }, + /* AEO model 0 reports 8 bpc, but is a 6 bpc panel */ + { "AEO", 0, EDID_QUIRK_FORCE_6BPC }, + /* Belinea 10 15 55 */ { "MAX", 1516, EDID_QUIRK_PREFER_LARGE_60 }, { "MAX", 0x77e, EDID_QUIRK_PREFER_LARGE_60 }, @@ -3862,6 +3867,20 @@ static void drm_add_display_info(struct edid *edid, /* HDMI deep color modes supported? Assign to info, if so */ drm_assign_hdmi_deep_color_info(edid, info, connector); + /* + * Digital sink with "DFP 1.x compliant TMDS" according to EDID 1.3? + * + * For such displays, the DFP spec 1.0, section 3.10 "EDID support" + * tells us to assume 8 bpc color depth if the EDID doesn't have + * extensions which tell otherwise. + */ + if ((info->bpc == 0) && (edid->revision < 4) && + (edid->input & DRM_EDID_DIGITAL_TYPE_DVI)) { + info->bpc = 8; + DRM_DEBUG("%s: Assigning DFP sink color depth as %d bpc.\n", + connector->name, info->bpc); + } + /* Only defined for 1.4 with digital displays */ if (edid->revision < 4) return; @@ -4082,6 +4101,9 @@ int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid) drm_add_display_info(edid, &connector->display_info, connector); + if (quirks & EDID_QUIRK_FORCE_6BPC) + connector->display_info.bpc = 6; + if (quirks & EDID_QUIRK_FORCE_8BPC) connector->display_info.bpc = 8; diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index c457eed76f1f..dcf93b3d4fb6 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5691,15 +5691,7 @@ static bool skl_cdclk_pcu_ready(struct drm_i915_private *dev_priv) static bool skl_cdclk_wait_for_pcu_ready(struct drm_i915_private *dev_priv) { - unsigned int i; - - for (i = 0; i < 15; i++) { - if (skl_cdclk_pcu_ready(dev_priv)) - return true; - udelay(10); - } - - return false; + return _wait_for(skl_cdclk_pcu_ready(dev_priv), 3000, 10) == 0; } static void skl_set_cdclk(struct drm_i915_private *dev_priv, int cdclk, int vco) @@ -12114,21 +12106,11 @@ connected_sink_compute_bpp(struct intel_connector *connector, pipe_config->pipe_bpp = connector->base.display_info.bpc*3; } - /* Clamp bpp to default limit on screens without EDID 1.4 */ - if (connector->base.display_info.bpc == 0) { - int type = connector->base.connector_type; - int clamp_bpp = 24; - - /* Fall back to 18 bpp when DP sink capability is unknown. */ - if (type == DRM_MODE_CONNECTOR_DisplayPort || - type == DRM_MODE_CONNECTOR_eDP) - clamp_bpp = 18; - - if (bpp > clamp_bpp) { - DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of %d\n", - bpp, clamp_bpp); - pipe_config->pipe_bpp = clamp_bpp; - } + /* Clamp bpp to 8 on screens without EDID 1.4 */ + if (connector->base.display_info.bpc == 0 && bpp > 24) { + DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n", + bpp); + pipe_config->pipe_bpp = 24; } } diff --git a/drivers/gpu/drm/i915/intel_fbdev.c b/drivers/gpu/drm/i915/intel_fbdev.c index 86b00c6db1a6..3e3632c18733 100644 --- a/drivers/gpu/drm/i915/intel_fbdev.c +++ b/drivers/gpu/drm/i915/intel_fbdev.c @@ -782,7 +782,7 @@ void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous struct intel_fbdev *ifbdev = dev_priv->fbdev; struct fb_info *info; - if (!ifbdev) + if (!ifbdev || !ifbdev->fb) return; info = ifbdev->helper.fbdev; @@ -827,31 +827,28 @@ void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous void intel_fbdev_output_poll_changed(struct drm_device *dev) { - struct drm_i915_private *dev_priv = to_i915(dev); - if (dev_priv->fbdev) - drm_fb_helper_hotplug_event(&dev_priv->fbdev->helper); + struct intel_fbdev *ifbdev = to_i915(dev)->fbdev; + + if (ifbdev && ifbdev->fb) + drm_fb_helper_hotplug_event(&ifbdev->helper); } void intel_fbdev_restore_mode(struct drm_device *dev) { - int ret; - struct drm_i915_private *dev_priv = to_i915(dev); - struct intel_fbdev *ifbdev = dev_priv->fbdev; - struct drm_fb_helper *fb_helper; + struct intel_fbdev *ifbdev = to_i915(dev)->fbdev; if (!ifbdev) return; intel_fbdev_sync(ifbdev); + if (!ifbdev->fb) + return; - fb_helper = &ifbdev->helper; - - ret = drm_fb_helper_restore_fbdev_mode_unlocked(fb_helper); - if (ret) { + if (drm_fb_helper_restore_fbdev_mode_unlocked(&ifbdev->helper)) { DRM_DEBUG("failed to restore crtc mode\n"); } else { - mutex_lock(&fb_helper->dev->struct_mutex); + mutex_lock(&dev->struct_mutex); intel_fb_obj_invalidate(ifbdev->fb->obj, ORIGIN_GTT); - mutex_unlock(&fb_helper->dev->struct_mutex); + mutex_unlock(&dev->struct_mutex); } } diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index f4f3fcc8b3be..97ba6c8cf907 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4892,7 +4892,8 @@ void gen6_rps_idle(struct drm_i915_private *dev_priv) else gen6_set_rps(dev_priv, dev_priv->rps.idle_freq); dev_priv->rps.last_adj = 0; - I915_WRITE(GEN6_PMINTRMSK, 0xffffffff); + I915_WRITE(GEN6_PMINTRMSK, + gen6_sanitize_rps_pm_mask(dev_priv, ~0)); } mutex_unlock(&dev_priv->rps.hw_lock); diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index 528bdeffb339..6190035edfea 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -1151,7 +1151,7 @@ nouveau_bo_move_flipd(struct ttm_buffer_object *bo, bool evict, bool intr, if (ret) goto out; - ret = ttm_bo_move_ttm(bo, true, no_wait_gpu, new_mem); + ret = ttm_bo_move_ttm(bo, true, intr, no_wait_gpu, new_mem); out: ttm_bo_mem_put(bo, &tmp_mem); return ret; @@ -1179,7 +1179,7 @@ nouveau_bo_move_flips(struct ttm_buffer_object *bo, bool evict, bool intr, if (ret) return ret; - ret = ttm_bo_move_ttm(bo, true, no_wait_gpu, &tmp_mem); + ret = ttm_bo_move_ttm(bo, true, intr, no_wait_gpu, &tmp_mem); if (ret) goto out; diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index ffdad81ef964..0c00e192c845 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -346,7 +346,7 @@ static int radeon_move_vram_ram(struct ttm_buffer_object *bo, if (unlikely(r)) { goto out_cleanup; } - r = ttm_bo_move_ttm(bo, true, no_wait_gpu, new_mem); + r = ttm_bo_move_ttm(bo, true, interruptible, no_wait_gpu, new_mem); out_cleanup: ttm_bo_mem_put(bo, &tmp_mem); return r; @@ -379,7 +379,7 @@ static int radeon_move_ram_vram(struct ttm_buffer_object *bo, if (unlikely(r)) { return r; } - r = ttm_bo_move_ttm(bo, true, no_wait_gpu, &tmp_mem); + r = ttm_bo_move_ttm(bo, true, interruptible, no_wait_gpu, &tmp_mem); if (unlikely(r)) { goto out_cleanup; } diff --git a/drivers/gpu/drm/rcar-du/rcar_du_hdmienc.c b/drivers/gpu/drm/rcar-du/rcar_du_hdmienc.c index 4de3ff0dbebd..e03004f4588d 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_hdmienc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_hdmienc.c @@ -125,6 +125,7 @@ int rcar_du_hdmienc_init(struct rcar_du_device *rcdu, /* Link drm_bridge to encoder */ bridge->encoder = encoder; + encoder->bridge = bridge; ret = drm_bridge_attach(rcdu->ddev, bridge); if (ret) { diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 4054d804fe06..42c074a9c955 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -354,7 +354,8 @@ static int ttm_bo_handle_move_mem(struct ttm_buffer_object *bo, if (!(old_man->flags & TTM_MEMTYPE_FLAG_FIXED) && !(new_man->flags & TTM_MEMTYPE_FLAG_FIXED)) - ret = ttm_bo_move_ttm(bo, evict, no_wait_gpu, mem); + ret = ttm_bo_move_ttm(bo, evict, interruptible, no_wait_gpu, + mem); else if (bdev->driver->move) ret = bdev->driver->move(bo, evict, interruptible, no_wait_gpu, mem); diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c index 2df602a35f92..f157a9efd220 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_util.c +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c @@ -45,7 +45,7 @@ void ttm_bo_free_old_node(struct ttm_buffer_object *bo) } int ttm_bo_move_ttm(struct ttm_buffer_object *bo, - bool evict, + bool evict, bool interruptible, bool no_wait_gpu, struct ttm_mem_reg *new_mem) { struct ttm_tt *ttm = bo->ttm; @@ -53,6 +53,14 @@ int ttm_bo_move_ttm(struct ttm_buffer_object *bo, int ret; if (old_mem->mem_type != TTM_PL_SYSTEM) { + ret = ttm_bo_wait(bo, interruptible, no_wait_gpu); + + if (unlikely(ret != 0)) { + if (ret != -ERESTARTSYS) + pr_err("Failed to expire sync object before unbinding TTM\n"); + return ret; + } + ttm_tt_unbind(ttm); ttm_bo_free_old_node(bo); ttm_flag_masked(&old_mem->placement, TTM_PL_FLAG_SYSTEM, diff --git a/drivers/input/keyboard/cros_ec_keyb.c b/drivers/input/keyboard/cros_ec_keyb.c index 4b0878f35471..25943e9bc8bf 100644 --- a/drivers/input/keyboard/cros_ec_keyb.c +++ b/drivers/input/keyboard/cros_ec_keyb.c @@ -27,6 +27,7 @@ #include <linux/input.h> #include <linux/interrupt.h> #include <linux/kernel.h> +#include <linux/notifier.h> #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/input/matrix_keypad.h> @@ -44,6 +45,7 @@ * @dev: Device pointer * @idev: Input device * @ec: Top level ChromeOS device to use to talk to EC + * @notifier: interrupt event notifier for transport devices */ struct cros_ec_keyb { unsigned int rows; @@ -57,6 +59,7 @@ struct cros_ec_keyb { struct device *dev; struct input_dev *idev; struct cros_ec_device *ec; + struct notifier_block notifier; }; @@ -146,67 +149,44 @@ static void cros_ec_keyb_process(struct cros_ec_keyb *ckdev, input_sync(ckdev->idev); } -static int cros_ec_keyb_get_state(struct cros_ec_keyb *ckdev, uint8_t *kb_state) -{ - int ret = 0; - struct cros_ec_command *msg; - - msg = kmalloc(sizeof(*msg) + ckdev->cols, GFP_KERNEL); - if (!msg) - return -ENOMEM; - - msg->version = 0; - msg->command = EC_CMD_MKBP_STATE; - msg->insize = ckdev->cols; - msg->outsize = 0; - - ret = cros_ec_cmd_xfer(ckdev->ec, msg); - if (ret < 0) { - dev_err(ckdev->dev, "Error transferring EC message %d\n", ret); - goto exit; - } - - memcpy(kb_state, msg->data, ckdev->cols); -exit: - kfree(msg); - return ret; -} - -static irqreturn_t cros_ec_keyb_irq(int irq, void *data) +static int cros_ec_keyb_open(struct input_dev *dev) { - struct cros_ec_keyb *ckdev = data; - struct cros_ec_device *ec = ckdev->ec; - int ret; - uint8_t kb_state[ckdev->cols]; - - if (device_may_wakeup(ec->dev)) - pm_wakeup_event(ec->dev, 0); - - ret = cros_ec_keyb_get_state(ckdev, kb_state); - if (ret >= 0) - cros_ec_keyb_process(ckdev, kb_state, ret); - else - dev_err(ckdev->dev, "failed to get keyboard state: %d\n", ret); + struct cros_ec_keyb *ckdev = input_get_drvdata(dev); - return IRQ_HANDLED; + return blocking_notifier_chain_register(&ckdev->ec->event_notifier, + &ckdev->notifier); } -static int cros_ec_keyb_open(struct input_dev *dev) +static void cros_ec_keyb_close(struct input_dev *dev) { struct cros_ec_keyb *ckdev = input_get_drvdata(dev); - struct cros_ec_device *ec = ckdev->ec; - return request_threaded_irq(ec->irq, NULL, cros_ec_keyb_irq, - IRQF_TRIGGER_LOW | IRQF_ONESHOT, - "cros_ec_keyb", ckdev); + blocking_notifier_chain_unregister(&ckdev->ec->event_notifier, + &ckdev->notifier); } -static void cros_ec_keyb_close(struct input_dev *dev) +static int cros_ec_keyb_work(struct notifier_block *nb, + unsigned long queued_during_suspend, void *_notify) { - struct cros_ec_keyb *ckdev = input_get_drvdata(dev); - struct cros_ec_device *ec = ckdev->ec; + struct cros_ec_keyb *ckdev = container_of(nb, struct cros_ec_keyb, + notifier); - free_irq(ec->irq, ckdev); + if (ckdev->ec->event_data.event_type != EC_MKBP_EVENT_KEY_MATRIX) + return NOTIFY_DONE; + /* + * If EC is not the wake source, discard key state changes during + * suspend. + */ + if (queued_during_suspend) + return NOTIFY_OK; + if (ckdev->ec->event_size != ckdev->cols) { + dev_err(ckdev->dev, + "Discarded incomplete key matrix event.\n"); + return NOTIFY_OK; + } + cros_ec_keyb_process(ckdev, ckdev->ec->event_data.data.key_matrix, + ckdev->ec->event_size); + return NOTIFY_OK; } /* @@ -265,12 +245,8 @@ static int cros_ec_keyb_probe(struct platform_device *pdev) if (!idev) return -ENOMEM; - if (!ec->irq) { - dev_err(dev, "no EC IRQ specified\n"); - return -EINVAL; - } - ckdev->ec = ec; + ckdev->notifier.notifier_call = cros_ec_keyb_work; ckdev->dev = dev; dev_set_drvdata(dev, ckdev); @@ -311,54 +287,6 @@ static int cros_ec_keyb_probe(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM_SLEEP -/* Clear any keys in the buffer */ -static void cros_ec_keyb_clear_keyboard(struct cros_ec_keyb *ckdev) -{ - uint8_t old_state[ckdev->cols]; - uint8_t new_state[ckdev->cols]; - unsigned long duration; - int i, ret; - - /* - * Keep reading until we see that the scan state does not change. - * That indicates that we are done. - * - * Assume that the EC keyscan buffer is at most 32 deep. - */ - duration = jiffies; - ret = cros_ec_keyb_get_state(ckdev, new_state); - for (i = 1; !ret && i < 32; i++) { - memcpy(old_state, new_state, sizeof(old_state)); - ret = cros_ec_keyb_get_state(ckdev, new_state); - if (0 == memcmp(old_state, new_state, sizeof(old_state))) - break; - } - duration = jiffies - duration; - dev_info(ckdev->dev, "Discarded %d keyscan(s) in %dus\n", i, - jiffies_to_usecs(duration)); -} - -static int cros_ec_keyb_resume(struct device *dev) -{ - struct cros_ec_keyb *ckdev = dev_get_drvdata(dev); - - /* - * When the EC is not a wake source, then it could not have caused the - * resume, so we clear the EC's key scan buffer. If the EC was a - * wake source (e.g. the lid is open and the user might press a key to - * wake) then the key scan buffer should be preserved. - */ - if (!ckdev->ec->was_wake_device) - cros_ec_keyb_clear_keyboard(ckdev); - - return 0; -} - -#endif - -static SIMPLE_DEV_PM_OPS(cros_ec_keyb_pm_ops, NULL, cros_ec_keyb_resume); - #ifdef CONFIG_OF static const struct of_device_id cros_ec_keyb_of_match[] = { { .compatible = "google,cros-ec-keyb" }, @@ -372,7 +300,6 @@ static struct platform_driver cros_ec_keyb_driver = { .driver = { .name = "cros-ec-keyb", .of_match_table = of_match_ptr(cros_ec_keyb_of_match), - .pm = &cros_ec_keyb_pm_ops, }, }; diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 2d1fb6420592..69b6fe2b982e 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -112,6 +112,16 @@ config MFD_BCM590XX help Support for the BCM590xx PMUs from Broadcom +config MFD_AC100 + tristate "X-Powers AC100" + select MFD_CORE + depends on SUNXI_RSB + help + If you say Y here you get support for the X-Powers AC100 audio codec + IC. + This driver include only the core APIs. You have to select individual + components like codecs or RTC under the corresponding menus. + config MFD_AXP20X tristate select MFD_CORE @@ -852,13 +862,13 @@ config MFD_RC5T583 different functionality of the device. config MFD_RK808 - tristate "Rockchip RK808 Power Management chip" + tristate "Rockchip RK808/RK818 Power Management Chip" depends on I2C && OF select MFD_CORE select REGMAP_I2C select REGMAP_IRQ help - If you say yes here you get support for the RK808 + If you say yes here you get support for the RK808 and RK818 Power Management chips. This driver provides common support for accessing the device through I2C interface. The device supports multiple sub-devices @@ -1224,6 +1234,20 @@ config MFD_TPS65217 This driver can also be built as a module. If so, the module will be called tps65217. +config MFD_TI_LP873X + tristate "TI LP873X Power Management IC" + depends on I2C + select MFD_CORE + select REGMAP_I2C + help + If you say yes here then you get support for the LP873X series of + Power Management Integrated Circuits (PMIC). + These include voltage regulators, thermal protection, configurable + General Purpose Outputs (GPO) that are used in portable devices. + + This driver can also be built as a module. If so, the module + will be called lp873x. + config MFD_TPS65218 tristate "TI TPS65218 Power Management chips" depends on I2C diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 2ba3ba35f745..5bf35c6a528b 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -22,6 +22,8 @@ obj-$(CONFIG_HTC_EGPIO) += htc-egpio.o obj-$(CONFIG_HTC_PASIC3) += htc-pasic3.o obj-$(CONFIG_HTC_I2CPLD) += htc-i2cpld.o +obj-$(CONFIG_MFD_TI_LP873X) += lp873x.o + obj-$(CONFIG_MFD_DAVINCI_VOICECODEC) += davinci_voicecodec.o obj-$(CONFIG_MFD_DM355EVM_MSP) += dm355evm_msp.o obj-$(CONFIG_MFD_TI_AM335X_TSCADC) += ti_am335x_tscadc.o @@ -113,6 +115,8 @@ obj-$(CONFIG_PMIC_DA9052) += da9052-irq.o obj-$(CONFIG_PMIC_DA9052) += da9052-core.o obj-$(CONFIG_MFD_DA9052_SPI) += da9052-spi.o obj-$(CONFIG_MFD_DA9052_I2C) += da9052-i2c.o + +obj-$(CONFIG_MFD_AC100) += ac100.o obj-$(CONFIG_MFD_AXP20X) += axp20x.o obj-$(CONFIG_MFD_AXP20X_I2C) += axp20x-i2c.o obj-$(CONFIG_MFD_AXP20X_RSB) += axp20x-rsb.o diff --git a/drivers/mfd/ac100.c b/drivers/mfd/ac100.c new file mode 100644 index 000000000000..9bc69cd7807d --- /dev/null +++ b/drivers/mfd/ac100.c @@ -0,0 +1,137 @@ +/* + * MFD core driver for X-Powers' AC100 Audio Codec IC + * + * The AC100 is a highly integrated audio codec and RTC subsystem designed + * for mobile applications. It has 3 I2S/PCM interfaces, a 2 channel DAC, + * a 2 channel ADC with 5 inputs and a builtin mixer. The RTC subsystem has + * 3 clock outputs. + * + * The audio codec and RTC parts are completely separate, sharing only the + * host interface for access to its registers. + * + * Copyright (2016) Chen-Yu Tsai + * + * Author: Chen-Yu Tsai <wens@csie.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/interrupt.h> +#include <linux/kernel.h> +#include <linux/mfd/core.h> +#include <linux/mfd/ac100.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/regmap.h> +#include <linux/sunxi-rsb.h> + +static const struct regmap_range ac100_writeable_ranges[] = { + regmap_reg_range(AC100_CHIP_AUDIO_RST, AC100_I2S_SR_CTRL), + regmap_reg_range(AC100_I2S1_CLK_CTRL, AC100_I2S1_MXR_GAIN), + regmap_reg_range(AC100_I2S2_CLK_CTRL, AC100_I2S2_MXR_GAIN), + regmap_reg_range(AC100_I2S3_CLK_CTRL, AC100_I2S3_SIG_PATH_CTRL), + regmap_reg_range(AC100_ADC_DIG_CTRL, AC100_ADC_VOL_CTRL), + regmap_reg_range(AC100_HMIC_CTRL1, AC100_HMIC_STATUS), + regmap_reg_range(AC100_DAC_DIG_CTRL, AC100_DAC_MXR_GAIN), + regmap_reg_range(AC100_ADC_APC_CTRL, AC100_LINEOUT_CTRL), + regmap_reg_range(AC100_ADC_DAP_L_CTRL, AC100_ADC_DAP_OPT), + regmap_reg_range(AC100_DAC_DAP_CTRL, AC100_DAC_DAP_OPT), + regmap_reg_range(AC100_ADC_DAP_ENA, AC100_DAC_DAP_ENA), + regmap_reg_range(AC100_SRC1_CTRL1, AC100_SRC1_CTRL2), + regmap_reg_range(AC100_SRC2_CTRL1, AC100_SRC2_CTRL2), + regmap_reg_range(AC100_CLK32K_ANALOG_CTRL, AC100_CLKOUT_CTRL3), + regmap_reg_range(AC100_RTC_RST, AC100_RTC_UPD), + regmap_reg_range(AC100_ALM_INT_ENA, AC100_ALM_INT_STA), + regmap_reg_range(AC100_ALM_SEC, AC100_RTC_GP(15)), +}; + +static const struct regmap_range ac100_volatile_ranges[] = { + regmap_reg_range(AC100_CHIP_AUDIO_RST, AC100_PLL_CTRL2), + regmap_reg_range(AC100_HMIC_STATUS, AC100_HMIC_STATUS), + regmap_reg_range(AC100_ADC_DAP_L_STA, AC100_ADC_DAP_L_STA), + regmap_reg_range(AC100_SRC1_CTRL1, AC100_SRC1_CTRL1), + regmap_reg_range(AC100_SRC1_CTRL3, AC100_SRC2_CTRL1), + regmap_reg_range(AC100_SRC2_CTRL3, AC100_SRC2_CTRL4), + regmap_reg_range(AC100_RTC_RST, AC100_RTC_RST), + regmap_reg_range(AC100_RTC_SEC, AC100_ALM_INT_STA), + regmap_reg_range(AC100_ALM_SEC, AC100_ALM_UPD), +}; + +static const struct regmap_access_table ac100_writeable_table = { + .yes_ranges = ac100_writeable_ranges, + .n_yes_ranges = ARRAY_SIZE(ac100_writeable_ranges), +}; + +static const struct regmap_access_table ac100_volatile_table = { + .yes_ranges = ac100_volatile_ranges, + .n_yes_ranges = ARRAY_SIZE(ac100_volatile_ranges), +}; + +static const struct regmap_config ac100_regmap_config = { + .reg_bits = 8, + .val_bits = 16, + .wr_table = &ac100_writeable_table, + .volatile_table = &ac100_volatile_table, + .max_register = AC100_RTC_GP(15), + .cache_type = REGCACHE_RBTREE, +}; + +static struct mfd_cell ac100_cells[] = { + { + .name = "ac100-codec", + .of_compatible = "x-powers,ac100-codec", + }, { + .name = "ac100-rtc", + .of_compatible = "x-powers,ac100-rtc", + }, +}; + +static int ac100_rsb_probe(struct sunxi_rsb_device *rdev) +{ + struct ac100_dev *ac100; + int ret; + + ac100 = devm_kzalloc(&rdev->dev, sizeof(*ac100), GFP_KERNEL); + if (!ac100) + return -ENOMEM; + + ac100->dev = &rdev->dev; + sunxi_rsb_device_set_drvdata(rdev, ac100); + + ac100->regmap = devm_regmap_init_sunxi_rsb(rdev, &ac100_regmap_config); + if (IS_ERR(ac100->regmap)) { + ret = PTR_ERR(ac100->regmap); + dev_err(ac100->dev, "regmap init failed: %d\n", ret); + return ret; + } + + ret = devm_mfd_add_devices(ac100->dev, PLATFORM_DEVID_NONE, ac100_cells, + ARRAY_SIZE(ac100_cells), NULL, 0, NULL); + if (ret) { + dev_err(ac100->dev, "failed to add MFD devices: %d\n", ret); + return ret; + } + + return 0; +} + +static const struct of_device_id ac100_of_match[] = { + { .compatible = "x-powers,ac100" }, + { }, +}; +MODULE_DEVICE_TABLE(of, ac100_of_match); + +static struct sunxi_rsb_driver ac100_rsb_driver = { + .driver = { + .name = "ac100", + .of_match_table = of_match_ptr(ac100_of_match), + }, + .probe = ac100_rsb_probe, +}; +module_sunxi_rsb_driver(ac100_rsb_driver); + +MODULE_DESCRIPTION("Audio codec MFD core driver for AC100"); +MODULE_AUTHOR("Chen-Yu Tsai <wens@csie.org>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c index e4f97b3c824b..4fa0fae51006 100644 --- a/drivers/mfd/arizona-core.c +++ b/drivers/mfd/arizona-core.c @@ -10,6 +10,7 @@ * published by the Free Software Foundation. */ +#include <linux/clk.h> #include <linux/delay.h> #include <linux/err.h> #include <linux/gpio.h> @@ -49,7 +50,15 @@ int arizona_clk32k_enable(struct arizona *arizona) case ARIZONA_32KZ_MCLK1: ret = pm_runtime_get_sync(arizona->dev); if (ret != 0) - goto out; + goto err_ref; + ret = clk_prepare_enable(arizona->mclk[ARIZONA_MCLK1]); + if (ret != 0) + goto err_pm; + break; + case ARIZONA_32KZ_MCLK2: + ret = clk_prepare_enable(arizona->mclk[ARIZONA_MCLK2]); + if (ret != 0) + goto err_ref; break; } @@ -58,7 +67,9 @@ int arizona_clk32k_enable(struct arizona *arizona) ARIZONA_CLK_32K_ENA); } -out: +err_pm: + pm_runtime_put_sync(arizona->dev); +err_ref: if (ret != 0) arizona->clk32k_ref--; @@ -83,6 +94,10 @@ int arizona_clk32k_disable(struct arizona *arizona) switch (arizona->pdata.clk32k_src) { case ARIZONA_32KZ_MCLK1: pm_runtime_put_sync(arizona->dev); + clk_disable_unprepare(arizona->mclk[ARIZONA_MCLK1]); + break; + case ARIZONA_32KZ_MCLK2: + clk_disable_unprepare(arizona->mclk[ARIZONA_MCLK2]); break; } } @@ -1000,6 +1015,7 @@ static const struct mfd_cell wm8998_devs[] = { int arizona_dev_init(struct arizona *arizona) { + const char * const mclk_name[] = { "mclk1", "mclk2" }; struct device *dev = arizona->dev; const char *type_name = NULL; unsigned int reg, val, mask; @@ -1016,6 +1032,16 @@ int arizona_dev_init(struct arizona *arizona) else arizona_of_get_core_pdata(arizona); + BUILD_BUG_ON(ARRAY_SIZE(arizona->mclk) != ARRAY_SIZE(mclk_name)); + for (i = 0; i < ARRAY_SIZE(arizona->mclk); i++) { + arizona->mclk[i] = devm_clk_get(arizona->dev, mclk_name[i]); + if (IS_ERR(arizona->mclk[i])) { + dev_info(arizona->dev, "Failed to get %s: %ld\n", + mclk_name[i], PTR_ERR(arizona->mclk[i])); + arizona->mclk[i] = NULL; + } + } + regcache_cache_only(arizona->regmap, true); switch (arizona->type) { diff --git a/drivers/mfd/axp20x-rsb.c b/drivers/mfd/axp20x-rsb.c index a407527bcd09..a732cb50bcff 100644 --- a/drivers/mfd/axp20x-rsb.c +++ b/drivers/mfd/axp20x-rsb.c @@ -61,6 +61,7 @@ static int axp20x_rsb_remove(struct sunxi_rsb_device *rdev) static const struct of_device_id axp20x_rsb_of_match[] = { { .compatible = "x-powers,axp223", .data = (void *)AXP223_ID }, + { .compatible = "x-powers,axp806", .data = (void *)AXP806_ID }, { .compatible = "x-powers,axp809", .data = (void *)AXP809_ID }, { }, }; diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c index fd80b0981f0f..96102753847f 100644 --- a/drivers/mfd/axp20x.c +++ b/drivers/mfd/axp20x.c @@ -38,6 +38,7 @@ static const char * const axp20x_model_names[] = { "AXP221", "AXP223", "AXP288", + "AXP806", "AXP809", }; @@ -129,6 +130,27 @@ static const struct regmap_access_table axp288_volatile_table = { .n_yes_ranges = ARRAY_SIZE(axp288_volatile_ranges), }; +static const struct regmap_range axp806_writeable_ranges[] = { + regmap_reg_range(AXP20X_DATACACHE(0), AXP20X_DATACACHE(3)), + regmap_reg_range(AXP806_PWR_OUT_CTRL1, AXP806_CLDO3_V_CTRL), + regmap_reg_range(AXP20X_IRQ1_EN, AXP20X_IRQ2_EN), + regmap_reg_range(AXP20X_IRQ1_STATE, AXP20X_IRQ2_STATE), +}; + +static const struct regmap_range axp806_volatile_ranges[] = { + regmap_reg_range(AXP20X_IRQ1_STATE, AXP20X_IRQ2_STATE), +}; + +static const struct regmap_access_table axp806_writeable_table = { + .yes_ranges = axp806_writeable_ranges, + .n_yes_ranges = ARRAY_SIZE(axp806_writeable_ranges), +}; + +static const struct regmap_access_table axp806_volatile_table = { + .yes_ranges = axp806_volatile_ranges, + .n_yes_ranges = ARRAY_SIZE(axp806_volatile_ranges), +}; + static struct resource axp152_pek_resources[] = { DEFINE_RES_IRQ_NAMED(AXP152_IRQ_PEK_RIS_EDGE, "PEK_DBR"), DEFINE_RES_IRQ_NAMED(AXP152_IRQ_PEK_FAL_EDGE, "PEK_DBF"), @@ -278,6 +300,15 @@ static const struct regmap_config axp288_regmap_config = { .cache_type = REGCACHE_RBTREE, }; +static const struct regmap_config axp806_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .wr_table = &axp806_writeable_table, + .volatile_table = &axp806_volatile_table, + .max_register = AXP806_VREF_TEMP_WARN_L, + .cache_type = REGCACHE_RBTREE, +}; + #define INIT_REGMAP_IRQ(_variant, _irq, _off, _mask) \ [_variant##_IRQ_##_irq] = { .reg_offset = (_off), .mask = BIT(_mask) } @@ -409,6 +440,21 @@ static const struct regmap_irq axp288_regmap_irqs[] = { INIT_REGMAP_IRQ(AXP288, BC_USB_CHNG, 5, 1), }; +static const struct regmap_irq axp806_regmap_irqs[] = { + INIT_REGMAP_IRQ(AXP806, DIE_TEMP_HIGH_LV1, 0, 0), + INIT_REGMAP_IRQ(AXP806, DIE_TEMP_HIGH_LV2, 0, 1), + INIT_REGMAP_IRQ(AXP806, DCDCA_V_LOW, 0, 3), + INIT_REGMAP_IRQ(AXP806, DCDCB_V_LOW, 0, 4), + INIT_REGMAP_IRQ(AXP806, DCDCC_V_LOW, 0, 5), + INIT_REGMAP_IRQ(AXP806, DCDCD_V_LOW, 0, 6), + INIT_REGMAP_IRQ(AXP806, DCDCE_V_LOW, 0, 7), + INIT_REGMAP_IRQ(AXP806, PWROK_LONG, 1, 0), + INIT_REGMAP_IRQ(AXP806, PWROK_SHORT, 1, 1), + INIT_REGMAP_IRQ(AXP806, WAKEUP, 1, 4), + INIT_REGMAP_IRQ(AXP806, PWROK_FALL, 1, 5), + INIT_REGMAP_IRQ(AXP806, PWROK_RISE, 1, 6), +}; + static const struct regmap_irq axp809_regmap_irqs[] = { INIT_REGMAP_IRQ(AXP809, ACIN_OVER_V, 0, 7), INIT_REGMAP_IRQ(AXP809, ACIN_PLUGIN, 0, 6), @@ -494,6 +540,18 @@ static const struct regmap_irq_chip axp288_regmap_irq_chip = { }; +static const struct regmap_irq_chip axp806_regmap_irq_chip = { + .name = "axp806", + .status_base = AXP20X_IRQ1_STATE, + .ack_base = AXP20X_IRQ1_STATE, + .mask_base = AXP20X_IRQ1_EN, + .mask_invert = true, + .init_ack_masked = true, + .irqs = axp806_regmap_irqs, + .num_irqs = ARRAY_SIZE(axp806_regmap_irqs), + .num_regs = 2, +}; + static const struct regmap_irq_chip axp809_regmap_irq_chip = { .name = "axp809", .status_base = AXP20X_IRQ1_STATE, @@ -660,12 +718,20 @@ static struct mfd_cell axp288_cells[] = { }, }; +static struct mfd_cell axp806_cells[] = { + { + .id = 2, + .name = "axp20x-regulator", + }, +}; + static struct mfd_cell axp809_cells[] = { { .name = "axp20x-pek", .num_resources = ARRAY_SIZE(axp809_pek_resources), .resources = axp809_pek_resources, }, { + .id = 1, .name = "axp20x-regulator", }, }; @@ -732,6 +798,12 @@ int axp20x_match_device(struct axp20x_dev *axp20x) axp20x->regmap_cfg = &axp288_regmap_config; axp20x->regmap_irq_chip = &axp288_regmap_irq_chip; break; + case AXP806_ID: + axp20x->nr_cells = ARRAY_SIZE(axp806_cells); + axp20x->cells = axp806_cells; + axp20x->regmap_cfg = &axp806_regmap_config; + axp20x->regmap_irq_chip = &axp806_regmap_irq_chip; + break; case AXP809_ID: axp20x->nr_cells = ARRAY_SIZE(axp809_cells); axp20x->cells = axp809_cells; diff --git a/drivers/mfd/cros_ec.c b/drivers/mfd/cros_ec.c index 0eee63542038..abd83424b498 100644 --- a/drivers/mfd/cros_ec.c +++ b/drivers/mfd/cros_ec.c @@ -23,6 +23,7 @@ #include <linux/module.h> #include <linux/mfd/core.h> #include <linux/mfd/cros_ec.h> +#include <asm/unaligned.h> #define CROS_EC_DEV_EC_INDEX 0 #define CROS_EC_DEV_PD_INDEX 1 @@ -49,11 +50,28 @@ static const struct mfd_cell ec_pd_cell = { .pdata_size = sizeof(pd_p), }; +static irqreturn_t ec_irq_thread(int irq, void *data) +{ + struct cros_ec_device *ec_dev = data; + int ret; + + if (device_may_wakeup(ec_dev->dev)) + pm_wakeup_event(ec_dev->dev, 0); + + ret = cros_ec_get_next_event(ec_dev); + if (ret > 0) + blocking_notifier_call_chain(&ec_dev->event_notifier, + 0, ec_dev); + return IRQ_HANDLED; +} + int cros_ec_register(struct cros_ec_device *ec_dev) { struct device *dev = ec_dev->dev; int err = 0; + BLOCKING_INIT_NOTIFIER_HEAD(&ec_dev->event_notifier); + ec_dev->max_request = sizeof(struct ec_params_hello); ec_dev->max_response = sizeof(struct ec_response_get_protocol_info); ec_dev->max_passthru = 0; @@ -70,13 +88,24 @@ int cros_ec_register(struct cros_ec_device *ec_dev) cros_ec_query_all(ec_dev); + if (ec_dev->irq) { + err = request_threaded_irq(ec_dev->irq, NULL, ec_irq_thread, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, + "chromeos-ec", ec_dev); + if (err) { + dev_err(dev, "Failed to request IRQ %d: %d", + ec_dev->irq, err); + return err; + } + } + err = mfd_add_devices(ec_dev->dev, PLATFORM_DEVID_AUTO, &ec_cell, 1, NULL, ec_dev->irq, NULL); if (err) { dev_err(dev, "Failed to register Embedded Controller subdevice %d\n", err); - return err; + goto fail_mfd; } if (ec_dev->max_passthru) { @@ -94,7 +123,7 @@ int cros_ec_register(struct cros_ec_device *ec_dev) dev_err(dev, "Failed to register Power Delivery subdevice %d\n", err); - return err; + goto fail_mfd; } } @@ -103,13 +132,18 @@ int cros_ec_register(struct cros_ec_device *ec_dev) if (err) { mfd_remove_devices(dev); dev_err(dev, "Failed to register sub-devices\n"); - return err; + goto fail_mfd; } } dev_info(dev, "Chrome EC device registered\n"); return 0; + +fail_mfd: + if (ec_dev->irq) + free_irq(ec_dev->irq, ec_dev); + return err; } EXPORT_SYMBOL(cros_ec_register); @@ -136,13 +170,31 @@ int cros_ec_suspend(struct cros_ec_device *ec_dev) } EXPORT_SYMBOL(cros_ec_suspend); +static void cros_ec_drain_events(struct cros_ec_device *ec_dev) +{ + while (cros_ec_get_next_event(ec_dev) > 0) + blocking_notifier_call_chain(&ec_dev->event_notifier, + 1, ec_dev); +} + int cros_ec_resume(struct cros_ec_device *ec_dev) { enable_irq(ec_dev->irq); + /* + * In some cases, we need to distinguish between events that occur + * during suspend if the EC is not a wake source. For example, + * keypresses during suspend should be discarded if it does not wake + * the system. + * + * If the EC is not a wake source, drain the event queue and mark them + * as "queued during suspend". + */ if (ec_dev->wake_enabled) { disable_irq_wake(ec_dev->irq); ec_dev->wake_enabled = 0; + } else { + cros_ec_drain_events(ec_dev); } return 0; diff --git a/drivers/mfd/lp873x.c b/drivers/mfd/lp873x.c new file mode 100644 index 000000000000..9af064c940ee --- /dev/null +++ b/drivers/mfd/lp873x.c @@ -0,0 +1,99 @@ +/* + * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/ + * + * Author: Keerthy <j-keerthy@ti.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/interrupt.h> +#include <linux/mfd/core.h> +#include <linux/module.h> +#include <linux/of_device.h> +#include <linux/regmap.h> + +#include <linux/mfd/lp873x.h> + +static const struct regmap_config lp873x_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = LP873X_REG_MAX, +}; + +static const struct mfd_cell lp873x_cells[] = { + { .name = "lp873x-regulator", }, + { .name = "lp873x-gpio", }, +}; + +static int lp873x_probe(struct i2c_client *client, + const struct i2c_device_id *ids) +{ + struct lp873x *lp873; + int ret; + unsigned int otpid; + + lp873 = devm_kzalloc(&client->dev, sizeof(*lp873), GFP_KERNEL); + if (!lp873) + return -ENOMEM; + + lp873->dev = &client->dev; + + lp873->regmap = devm_regmap_init_i2c(client, &lp873x_regmap_config); + if (IS_ERR(lp873->regmap)) { + ret = PTR_ERR(lp873->regmap); + dev_err(lp873->dev, + "Failed to initialize register map: %d\n", ret); + return ret; + } + + mutex_init(&lp873->lock); + + ret = regmap_read(lp873->regmap, LP873X_REG_OTP_REV, &otpid); + if (ret) { + dev_err(lp873->dev, "Failed to read OTP ID\n"); + return ret; + } + + lp873->rev = otpid & LP873X_OTP_REV_OTP_ID; + + i2c_set_clientdata(client, lp873); + + ret = mfd_add_devices(lp873->dev, PLATFORM_DEVID_AUTO, lp873x_cells, + ARRAY_SIZE(lp873x_cells), NULL, 0, NULL); + + return ret; +} + +static const struct of_device_id of_lp873x_match_table[] = { + { .compatible = "ti,lp8733", }, + { .compatible = "ti,lp8732", }, + {} +}; +MODULE_DEVICE_TABLE(of, of_lp873x_match_table); + +static const struct i2c_device_id lp873x_id_table[] = { + { "lp873x", 0 }, + { }, +}; +MODULE_DEVICE_TABLE(i2c, lp873x_id_table); + +static struct i2c_driver lp873x_driver = { + .driver = { + .name = "lp873x", + .of_match_table = of_lp873x_match_table, + }, + .probe = lp873x_probe, + .id_table = lp873x_id_table, +}; +module_i2c_driver(lp873x_driver); + +MODULE_AUTHOR("J Keerthy <j-keerthy@ti.com>"); +MODULE_DESCRIPTION("LP873X chip family Multi-Function Device driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/mfd/pm8921-core.c b/drivers/mfd/pm8921-core.c index 1b7ec0870c2a..0e3a2ea25942 100644 --- a/drivers/mfd/pm8921-core.c +++ b/drivers/mfd/pm8921-core.c @@ -309,6 +309,7 @@ static const struct regmap_config ssbi_regmap_config = { }; static const struct of_device_id pm8921_id_table[] = { + { .compatible = "qcom,pm8018", }, { .compatible = "qcom,pm8058", }, { .compatible = "qcom,pm8921", }, { } diff --git a/drivers/mfd/qcom_rpm.c b/drivers/mfd/qcom_rpm.c index 2e44323455dd..a74210df5969 100644 --- a/drivers/mfd/qcom_rpm.c +++ b/drivers/mfd/qcom_rpm.c @@ -388,11 +388,62 @@ static const struct qcom_rpm_data ipq806x_template = { .ack_sel_size = 7, }; +static const struct qcom_rpm_resource mdm9615_rpm_resource_table[] = { + [QCOM_RPM_CXO_CLK] = { 25, 9, 5, 1 }, + [QCOM_RPM_SYS_FABRIC_CLK] = { 26, 10, 9, 1 }, + [QCOM_RPM_DAYTONA_FABRIC_CLK] = { 27, 11, 11, 1 }, + [QCOM_RPM_SFPB_CLK] = { 28, 12, 12, 1 }, + [QCOM_RPM_CFPB_CLK] = { 29, 13, 13, 1 }, + [QCOM_RPM_EBI1_CLK] = { 30, 14, 16, 1 }, + [QCOM_RPM_APPS_FABRIC_HALT] = { 31, 15, 22, 2 }, + [QCOM_RPM_APPS_FABRIC_MODE] = { 33, 16, 23, 3 }, + [QCOM_RPM_APPS_FABRIC_IOCTL] = { 36, 17, 24, 1 }, + [QCOM_RPM_APPS_FABRIC_ARB] = { 37, 18, 25, 27 }, + [QCOM_RPM_PM8018_SMPS1] = { 64, 19, 30, 2 }, + [QCOM_RPM_PM8018_SMPS2] = { 66, 21, 31, 2 }, + [QCOM_RPM_PM8018_SMPS3] = { 68, 23, 32, 2 }, + [QCOM_RPM_PM8018_SMPS4] = { 70, 25, 33, 2 }, + [QCOM_RPM_PM8018_SMPS5] = { 72, 27, 34, 2 }, + [QCOM_RPM_PM8018_LDO1] = { 74, 29, 35, 2 }, + [QCOM_RPM_PM8018_LDO2] = { 76, 31, 36, 2 }, + [QCOM_RPM_PM8018_LDO3] = { 78, 33, 37, 2 }, + [QCOM_RPM_PM8018_LDO4] = { 80, 35, 38, 2 }, + [QCOM_RPM_PM8018_LDO5] = { 82, 37, 39, 2 }, + [QCOM_RPM_PM8018_LDO6] = { 84, 39, 40, 2 }, + [QCOM_RPM_PM8018_LDO7] = { 86, 41, 41, 2 }, + [QCOM_RPM_PM8018_LDO8] = { 88, 43, 42, 2 }, + [QCOM_RPM_PM8018_LDO9] = { 90, 45, 43, 2 }, + [QCOM_RPM_PM8018_LDO10] = { 92, 47, 44, 2 }, + [QCOM_RPM_PM8018_LDO11] = { 94, 49, 45, 2 }, + [QCOM_RPM_PM8018_LDO12] = { 96, 51, 46, 2 }, + [QCOM_RPM_PM8018_LDO13] = { 98, 53, 47, 2 }, + [QCOM_RPM_PM8018_LDO14] = { 100, 55, 48, 2 }, + [QCOM_RPM_PM8018_LVS1] = { 102, 57, 49, 1 }, + [QCOM_RPM_PM8018_NCP] = { 103, 58, 80, 2 }, + [QCOM_RPM_CXO_BUFFERS] = { 105, 60, 81, 1 }, + [QCOM_RPM_USB_OTG_SWITCH] = { 106, 61, 82, 1 }, + [QCOM_RPM_HDMI_SWITCH] = { 107, 62, 83, 1 }, + [QCOM_RPM_VOLTAGE_CORNER] = { 109, 64, 87, 1 }, +}; + +static const struct qcom_rpm_data mdm9615_template = { + .version = 3, + .resource_table = mdm9615_rpm_resource_table, + .n_resources = ARRAY_SIZE(mdm9615_rpm_resource_table), + .req_ctx_off = 3, + .req_sel_off = 11, + .ack_ctx_off = 15, + .ack_sel_off = 23, + .req_sel_size = 4, + .ack_sel_size = 7, +}; + static const struct of_device_id qcom_rpm_of_match[] = { { .compatible = "qcom,rpm-apq8064", .data = &apq8064_template }, { .compatible = "qcom,rpm-msm8660", .data = &msm8660_template }, { .compatible = "qcom,rpm-msm8960", .data = &msm8960_template }, { .compatible = "qcom,rpm-ipq8064", .data = &ipq806x_template }, + { .compatible = "qcom,rpm-mdm9615", .data = &mdm9615_template }, { } }; MODULE_DEVICE_TABLE(of, qcom_rpm_of_match); diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c index 49d7f624fc94..0f8acc5882a4 100644 --- a/drivers/mfd/rk808.c +++ b/drivers/mfd/rk808.c @@ -1,11 +1,15 @@ /* - * MFD core driver for Rockchip RK808 + * MFD core driver for Rockchip RK808/RK818 * * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd * * Author: Chris Zhong <zyw@rock-chips.com> * Author: Zhang Qing <zhangqing@rock-chips.com> * + * Copyright (C) 2016 PHYTEC Messtechnik GmbH + * + * Author: Wadim Egorov <w.egorov@phytec.de> + * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. @@ -21,6 +25,7 @@ #include <linux/mfd/rk808.h> #include <linux/mfd/core.h> #include <linux/module.h> +#include <linux/of_device.h> #include <linux/regmap.h> struct rk808_reg_data { @@ -57,6 +62,14 @@ static bool rk808_is_volatile_reg(struct device *dev, unsigned int reg) return false; } +static const struct regmap_config rk818_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = RK818_USB_CTRL_REG, + .cache_type = REGCACHE_RBTREE, + .volatile_reg = rk808_is_volatile_reg, +}; + static const struct regmap_config rk808_regmap_config = { .reg_bits = 8, .val_bits = 8, @@ -79,11 +92,21 @@ static const struct mfd_cell rk808s[] = { { .name = "rk808-rtc", .num_resources = ARRAY_SIZE(rtc_resources), - .resources = &rtc_resources[0], + .resources = rtc_resources, }, }; -static const struct rk808_reg_data pre_init_reg[] = { +static const struct mfd_cell rk818s[] = { + { .name = "rk808-clkout", }, + { .name = "rk808-regulator", }, + { + .name = "rk808-rtc", + .num_resources = ARRAY_SIZE(rtc_resources), + .resources = rtc_resources, + }, +}; + +static const struct rk808_reg_data rk808_pre_init_reg[] = { { RK808_BUCK3_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_150MA }, { RK808_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_200MA }, { RK808_BOOST_CONFIG_REG, BOOST_ILMIN_MASK, BOOST_ILMIN_100MA }, @@ -94,6 +117,24 @@ static const struct rk808_reg_data pre_init_reg[] = { VB_LO_SEL_3500MV }, }; +static const struct rk808_reg_data rk818_pre_init_reg[] = { + /* improve efficiency */ + { RK818_BUCK2_CONFIG_REG, BUCK2_RATE_MASK, BUCK_ILMIN_250MA }, + { RK818_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_250MA }, + { RK818_BOOST_CONFIG_REG, BOOST_ILMIN_MASK, BOOST_ILMIN_100MA }, + { RK818_USB_CTRL_REG, RK818_USB_ILIM_SEL_MASK, + RK818_USB_ILMIN_2000MA }, + /* close charger when usb lower then 3.4V */ + { RK818_USB_CTRL_REG, RK818_USB_CHG_SD_VSEL_MASK, + (0x7 << 4) }, + /* no action when vref */ + { RK818_H5V_EN_REG, BIT(1), RK818_REF_RDY_CTRL }, + /* enable HDMI 5V */ + { RK818_H5V_EN_REG, BIT(0), RK818_H5V_EN }, + { RK808_VB_MON_REG, MASK_ALL, VB_LO_ACT | + VB_LO_SEL_3500MV }, +}; + static const struct regmap_irq rk808_irqs[] = { /* INT_STS */ [RK808_IRQ_VOUT_LO] = { @@ -136,6 +177,76 @@ static const struct regmap_irq rk808_irqs[] = { }, }; +static const struct regmap_irq rk818_irqs[] = { + /* INT_STS */ + [RK818_IRQ_VOUT_LO] = { + .mask = RK818_IRQ_VOUT_LO_MSK, + .reg_offset = 0, + }, + [RK818_IRQ_VB_LO] = { + .mask = RK818_IRQ_VB_LO_MSK, + .reg_offset = 0, + }, + [RK818_IRQ_PWRON] = { + .mask = RK818_IRQ_PWRON_MSK, + .reg_offset = 0, + }, + [RK818_IRQ_PWRON_LP] = { + .mask = RK818_IRQ_PWRON_LP_MSK, + .reg_offset = 0, + }, + [RK818_IRQ_HOTDIE] = { + .mask = RK818_IRQ_HOTDIE_MSK, + .reg_offset = 0, + }, + [RK818_IRQ_RTC_ALARM] = { + .mask = RK818_IRQ_RTC_ALARM_MSK, + .reg_offset = 0, + }, + [RK818_IRQ_RTC_PERIOD] = { + .mask = RK818_IRQ_RTC_PERIOD_MSK, + .reg_offset = 0, + }, + [RK818_IRQ_USB_OV] = { + .mask = RK818_IRQ_USB_OV_MSK, + .reg_offset = 0, + }, + + /* INT_STS2 */ + [RK818_IRQ_PLUG_IN] = { + .mask = RK818_IRQ_PLUG_IN_MSK, + .reg_offset = 1, + }, + [RK818_IRQ_PLUG_OUT] = { + .mask = RK818_IRQ_PLUG_OUT_MSK, + .reg_offset = 1, + }, + [RK818_IRQ_CHG_OK] = { + .mask = RK818_IRQ_CHG_OK_MSK, + .reg_offset = 1, + }, + [RK818_IRQ_CHG_TE] = { + .mask = RK818_IRQ_CHG_TE_MSK, + .reg_offset = 1, + }, + [RK818_IRQ_CHG_TS1] = { + .mask = RK818_IRQ_CHG_TS1_MSK, + .reg_offset = 1, + }, + [RK818_IRQ_TS2] = { + .mask = RK818_IRQ_TS2_MSK, + .reg_offset = 1, + }, + [RK818_IRQ_CHG_CVTLIM] = { + .mask = RK818_IRQ_CHG_CVTLIM_MSK, + .reg_offset = 1, + }, + [RK818_IRQ_DISCHG_ILIM] = { + .mask = RK818_IRQ_DISCHG_ILIM_MSK, + .reg_offset = 1, + }, +}; + static struct regmap_irq_chip rk808_irq_chip = { .name = "rk808", .irqs = rk808_irqs, @@ -148,6 +259,18 @@ static struct regmap_irq_chip rk808_irq_chip = { .init_ack_masked = true, }; +static struct regmap_irq_chip rk818_irq_chip = { + .name = "rk818", + .irqs = rk818_irqs, + .num_irqs = ARRAY_SIZE(rk818_irqs), + .num_regs = 2, + .irq_reg_stride = 2, + .status_base = RK818_INT_STS_REG1, + .mask_base = RK818_INT_STS_MSK_REG1, + .ack_base = RK818_INT_STS_REG1, + .init_ack_masked = true, +}; + static struct i2c_client *rk808_i2c_client; static void rk808_device_shutdown(void) { @@ -167,55 +290,100 @@ static void rk808_device_shutdown(void) dev_err(&rk808_i2c_client->dev, "power off error!\n"); } +static const struct of_device_id rk808_of_match[] = { + { .compatible = "rockchip,rk808" }, + { .compatible = "rockchip,rk818" }, + { }, +}; +MODULE_DEVICE_TABLE(of, rk808_of_match); + static int rk808_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct device_node *np = client->dev.of_node; struct rk808 *rk808; + const struct rk808_reg_data *pre_init_reg; + const struct mfd_cell *cells; + int nr_pre_init_regs; + int nr_cells; int pm_off = 0; int ret; int i; - if (!client->irq) { - dev_err(&client->dev, "No interrupt support, no core IRQ\n"); - return -EINVAL; - } - rk808 = devm_kzalloc(&client->dev, sizeof(*rk808), GFP_KERNEL); if (!rk808) return -ENOMEM; - rk808->regmap = devm_regmap_init_i2c(client, &rk808_regmap_config); + rk808->variant = i2c_smbus_read_word_data(client, RK808_ID_MSB); + if (rk808->variant < 0) { + dev_err(&client->dev, "Failed to read the chip id at 0x%02x\n", + RK808_ID_MSB); + return rk808->variant; + } + + dev_dbg(&client->dev, "Chip id: 0x%x\n", (unsigned int)rk808->variant); + + switch (rk808->variant) { + case RK808_ID: + rk808->regmap_cfg = &rk808_regmap_config; + rk808->regmap_irq_chip = &rk808_irq_chip; + pre_init_reg = rk808_pre_init_reg; + nr_pre_init_regs = ARRAY_SIZE(rk808_pre_init_reg); + cells = rk808s; + nr_cells = ARRAY_SIZE(rk808s); + break; + case RK818_ID: + rk808->regmap_cfg = &rk818_regmap_config; + rk808->regmap_irq_chip = &rk818_irq_chip; + pre_init_reg = rk818_pre_init_reg; + nr_pre_init_regs = ARRAY_SIZE(rk818_pre_init_reg); + cells = rk818s; + nr_cells = ARRAY_SIZE(rk818s); + break; + default: + dev_err(&client->dev, "Unsupported RK8XX ID %lu\n", + rk808->variant); + return -EINVAL; + } + + rk808->i2c = client; + i2c_set_clientdata(client, rk808); + + rk808->regmap = devm_regmap_init_i2c(client, rk808->regmap_cfg); if (IS_ERR(rk808->regmap)) { dev_err(&client->dev, "regmap initialization failed\n"); return PTR_ERR(rk808->regmap); } - for (i = 0; i < ARRAY_SIZE(pre_init_reg); i++) { - ret = regmap_update_bits(rk808->regmap, pre_init_reg[i].addr, - pre_init_reg[i].mask, - pre_init_reg[i].value); - if (ret) { - dev_err(&client->dev, - "0x%x write err\n", pre_init_reg[i].addr); - return ret; - } + if (!client->irq) { + dev_err(&client->dev, "No interrupt support, no core IRQ\n"); + return -EINVAL; } ret = regmap_add_irq_chip(rk808->regmap, client->irq, IRQF_ONESHOT, -1, - &rk808_irq_chip, &rk808->irq_data); + rk808->regmap_irq_chip, &rk808->irq_data); if (ret) { dev_err(&client->dev, "Failed to add irq_chip %d\n", ret); return ret; } - rk808->i2c = client; - i2c_set_clientdata(client, rk808); + for (i = 0; i < nr_pre_init_regs; i++) { + ret = regmap_update_bits(rk808->regmap, + pre_init_reg[i].addr, + pre_init_reg[i].mask, + pre_init_reg[i].value); + if (ret) { + dev_err(&client->dev, + "0x%x write err\n", + pre_init_reg[i].addr); + return ret; + } + } - ret = devm_mfd_add_devices(&client->dev, -1, - rk808s, ARRAY_SIZE(rk808s), NULL, 0, - regmap_irq_get_domain(rk808->irq_data)); + ret = devm_mfd_add_devices(&client->dev, PLATFORM_DEVID_NONE, + cells, nr_cells, NULL, 0, + regmap_irq_get_domain(rk808->irq_data)); if (ret) { dev_err(&client->dev, "failed to add MFD devices %d\n", ret); goto err_irq; @@ -245,14 +413,9 @@ static int rk808_remove(struct i2c_client *client) return 0; } -static const struct of_device_id rk808_of_match[] = { - { .compatible = "rockchip,rk808" }, - { }, -}; -MODULE_DEVICE_TABLE(of, rk808_of_match); - static const struct i2c_device_id rk808_ids[] = { { "rk808" }, + { "rk818" }, { }, }; MODULE_DEVICE_TABLE(i2c, rk808_ids); @@ -272,4 +435,5 @@ module_i2c_driver(rk808_i2c_driver); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>"); MODULE_AUTHOR("Zhang Qing <zhangqing@rock-chips.com>"); -MODULE_DESCRIPTION("RK808 PMIC driver"); +MODULE_AUTHOR("Wadim Egorov <w.egorov@phytec.de>"); +MODULE_DESCRIPTION("RK808/RK818 PMIC driver"); diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index 4387ccb79e64..7410c6d9a34d 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@ -69,5 +69,6 @@ OBJCOPYFLAGS := OBJCOPYFLAGS_lkdtm_rodata_objcopy.o := \ --set-section-flags .text=alloc,readonly \ --rename-section .text=.rodata -$(obj)/lkdtm_rodata_objcopy.o: $(obj)/lkdtm_rodata.o +targets += lkdtm_rodata.o lkdtm_rodata_objcopy.o +$(obj)/lkdtm_rodata_objcopy.o: $(obj)/lkdtm_rodata.o FORCE $(call if_changed,objcopy) diff --git a/drivers/misc/cxl/context.c b/drivers/misc/cxl/context.c index bdee9a01ef35..c466ee2b0c97 100644 --- a/drivers/misc/cxl/context.c +++ b/drivers/misc/cxl/context.c @@ -90,8 +90,7 @@ int cxl_context_init(struct cxl_context *ctx, struct cxl_afu *afu, bool master, */ mutex_lock(&afu->contexts_lock); idr_preload(GFP_KERNEL); - i = idr_alloc(&ctx->afu->contexts_idr, ctx, - ctx->afu->adapter->native->sl_ops->min_pe, + i = idr_alloc(&ctx->afu->contexts_idr, ctx, ctx->afu->adapter->min_pe, ctx->afu->num_procs, GFP_NOWAIT); idr_preload_end(); mutex_unlock(&afu->contexts_lock); diff --git a/drivers/misc/cxl/cxl.h b/drivers/misc/cxl/cxl.h index de090533f18c..344a0ff8f8c7 100644 --- a/drivers/misc/cxl/cxl.h +++ b/drivers/misc/cxl/cxl.h @@ -561,7 +561,6 @@ struct cxl_service_layer_ops { u64 (*timebase_read)(struct cxl *adapter); int capi_mode; bool needs_reset_before_disable; - int min_pe; }; struct cxl_native { @@ -603,6 +602,7 @@ struct cxl { struct bin_attribute cxl_attr; int adapter_num; int user_irqs; + int min_pe; u64 ps_size; u16 psl_rev; u16 base_image; diff --git a/drivers/misc/cxl/native.c b/drivers/misc/cxl/native.c index 3bcdaee11ba1..e606fdc4bc9c 100644 --- a/drivers/misc/cxl/native.c +++ b/drivers/misc/cxl/native.c @@ -924,7 +924,7 @@ static irqreturn_t native_irq_multiplexed(int irq, void *data) return fail_psl_irq(afu, &irq_info); } -void native_irq_wait(struct cxl_context *ctx) +static void native_irq_wait(struct cxl_context *ctx) { u64 dsisr; int timeout = 1000; diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c index d152e2de8c93..6f0c4ac4b649 100644 --- a/drivers/misc/cxl/pci.c +++ b/drivers/misc/cxl/pci.c @@ -379,7 +379,7 @@ static int calc_capp_routing(struct pci_dev *dev, u64 *chipid, u64 *capp_unit_id static int init_implementation_adapter_psl_regs(struct cxl *adapter, struct pci_dev *dev) { - u64 psl_dsnctl; + u64 psl_dsnctl, psl_fircntl; u64 chipid; u64 capp_unit_id; int rc; @@ -398,8 +398,11 @@ static int init_implementation_adapter_psl_regs(struct cxl *adapter, struct pci_ cxl_p1_write(adapter, CXL_PSL_RESLCKTO, 0x20000000200ULL); /* snoop write mask */ cxl_p1_write(adapter, CXL_PSL_SNWRALLOC, 0x00000000FFFFFFFFULL); - /* set fir_accum */ - cxl_p1_write(adapter, CXL_PSL_FIR_CNTL, 0x0800000000000000ULL); + /* set fir_cntl to recommended value for production env */ + psl_fircntl = (0x2ULL << (63-3)); /* ce_report */ + psl_fircntl |= (0x1ULL << (63-6)); /* FIR_report */ + psl_fircntl |= 0x1ULL; /* ce_thresh */ + cxl_p1_write(adapter, CXL_PSL_FIR_CNTL, psl_fircntl); /* for debugging with trace arrays */ cxl_p1_write(adapter, CXL_PSL_TRACE, 0x0000FF7C00000000ULL); @@ -1521,14 +1524,15 @@ static const struct cxl_service_layer_ops xsl_ops = { .write_timebase_ctrl = write_timebase_ctrl_xsl, .timebase_read = timebase_read_xsl, .capi_mode = OPAL_PHB_CAPI_MODE_DMA, - .min_pe = 1, /* Workaround for Mellanox CX4 HW bug */ }; static void set_sl_ops(struct cxl *adapter, struct pci_dev *dev) { if (dev->vendor == PCI_VENDOR_ID_MELLANOX && dev->device == 0x1013) { + /* Mellanox CX-4 */ dev_info(&adapter->dev, "Device uses an XSL\n"); adapter->native->sl_ops = &xsl_ops; + adapter->min_pe = 1; /* Workaround for CX-4 hardware bug */ } else { dev_info(&adapter->dev, "Device uses a PSL\n"); adapter->native->sl_ops = &psl_ops; diff --git a/drivers/misc/cxl/vphb.c b/drivers/misc/cxl/vphb.c index dee8def1c193..7ada5f1b7bb6 100644 --- a/drivers/misc/cxl/vphb.c +++ b/drivers/misc/cxl/vphb.c @@ -221,7 +221,7 @@ int cxl_pci_vphb_add(struct cxl_afu *afu) /* Setup the PHB using arch provided callback */ phb->ops = &cxl_pcie_pci_ops; phb->cfg_addr = NULL; - phb->cfg_data = 0; + phb->cfg_data = NULL; phb->private_data = afu; phb->controller_ops = cxl_pci_controller_ops; diff --git a/drivers/misc/lkdtm_usercopy.c b/drivers/misc/lkdtm_usercopy.c index 5a3fd76eec27..5525a204db93 100644 --- a/drivers/misc/lkdtm_usercopy.c +++ b/drivers/misc/lkdtm_usercopy.c @@ -49,7 +49,7 @@ static noinline void do_usercopy_stack(bool to_user, bool bad_frame) /* This is a pointer to outside our current stack frame. */ if (bad_frame) { - bad_stack = do_usercopy_stack_callee((uintptr_t)bad_stack); + bad_stack = do_usercopy_stack_callee((uintptr_t)&bad_stack); } else { /* Put start address just inside stack. */ bad_stack = task_stack_page(current) + THREAD_SIZE; diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c index 88e91666f145..368795aad5c9 100644 --- a/drivers/nvdimm/btt.c +++ b/drivers/nvdimm/btt.c @@ -1269,6 +1269,7 @@ static int btt_blk_init(struct btt *btt) } } set_capacity(btt->btt_disk, btt->nlba * btt->sector_size >> 9); + btt->nd_btt->size = btt->nlba * (u64)btt->sector_size; revalidate_disk(btt->btt_disk); return 0; diff --git a/drivers/nvdimm/btt_devs.c b/drivers/nvdimm/btt_devs.c index 3fa7919f94a8..97dd2925ed6e 100644 --- a/drivers/nvdimm/btt_devs.c +++ b/drivers/nvdimm/btt_devs.c @@ -140,10 +140,30 @@ static ssize_t namespace_store(struct device *dev, } static DEVICE_ATTR_RW(namespace); +static ssize_t size_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct nd_btt *nd_btt = to_nd_btt(dev); + ssize_t rc; + + device_lock(dev); + if (dev->driver) + rc = sprintf(buf, "%llu\n", nd_btt->size); + else { + /* no size to convey if the btt instance is disabled */ + rc = -ENXIO; + } + device_unlock(dev); + + return rc; +} +static DEVICE_ATTR_RO(size); + static struct attribute *nd_btt_attributes[] = { &dev_attr_sector_size.attr, &dev_attr_namespace.attr, &dev_attr_uuid.attr, + &dev_attr_size.attr, NULL, }; diff --git a/drivers/nvdimm/nd.h b/drivers/nvdimm/nd.h index 40476399d227..8024a0ef86d3 100644 --- a/drivers/nvdimm/nd.h +++ b/drivers/nvdimm/nd.h @@ -143,6 +143,7 @@ struct nd_btt { struct nd_namespace_common *ndns; struct btt *btt; unsigned long lbasize; + u64 size; u8 *uuid; int id; }; diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index d7c33f9361aa..8dcf5a960951 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -1543,15 +1543,10 @@ static void nvme_disable_io_queues(struct nvme_dev *dev) reinit_completion(&dev->ioq_wait); retry: timeout = ADMIN_TIMEOUT; - for (; i > 0; i--) { - struct nvme_queue *nvmeq = dev->queues[i]; - - if (!pass) - nvme_suspend_queue(nvmeq); - if (nvme_delete_queue(nvmeq, opcode)) + for (; i > 0; i--, sent++) + if (nvme_delete_queue(dev->queues[i], opcode)) break; - ++sent; - } + while (sent--) { timeout = wait_for_completion_io_timeout(&dev->ioq_wait, timeout); if (timeout == 0) @@ -1693,11 +1688,12 @@ static void nvme_dev_disable(struct nvme_dev *dev, bool shutdown) nvme_stop_queues(&dev->ctrl); csts = readl(dev->bar + NVME_REG_CSTS); } + + for (i = dev->queue_count - 1; i > 0; i--) + nvme_suspend_queue(dev->queues[i]); + if (csts & NVME_CSTS_CFS || !(csts & NVME_CSTS_RDY)) { - for (i = dev->queue_count - 1; i >= 0; i--) { - struct nvme_queue *nvmeq = dev->queues[i]; - nvme_suspend_queue(nvmeq); - } + nvme_suspend_queue(dev->queues[0]); } else { nvme_disable_io_queues(dev); nvme_disable_admin_queue(dev, shutdown); diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c index 3e3ce2b0424e..8d2875b4c56d 100644 --- a/drivers/nvme/host/rdma.c +++ b/drivers/nvme/host/rdma.c @@ -12,13 +12,11 @@ * more details. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt -#include <linux/delay.h> #include <linux/module.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/err.h> #include <linux/string.h> -#include <linux/jiffies.h> #include <linux/atomic.h> #include <linux/blk-mq.h> #include <linux/types.h> @@ -26,7 +24,6 @@ #include <linux/mutex.h> #include <linux/scatterlist.h> #include <linux/nvme.h> -#include <linux/t10-pi.h> #include <asm/unaligned.h> #include <rdma/ib_verbs.h> @@ -169,7 +166,6 @@ MODULE_PARM_DESC(register_always, static int nvme_rdma_cm_handler(struct rdma_cm_id *cm_id, struct rdma_cm_event *event); static void nvme_rdma_recv_done(struct ib_cq *cq, struct ib_wc *wc); -static int __nvme_rdma_del_ctrl(struct nvme_rdma_ctrl *ctrl); /* XXX: really should move to a generic header sooner or later.. */ static inline void put_unaligned_le24(u32 val, u8 *p) @@ -687,11 +683,6 @@ static void nvme_rdma_free_ctrl(struct nvme_ctrl *nctrl) list_del(&ctrl->list); mutex_unlock(&nvme_rdma_ctrl_mutex); - if (ctrl->ctrl.tagset) { - blk_cleanup_queue(ctrl->ctrl.connect_q); - blk_mq_free_tag_set(&ctrl->tag_set); - nvme_rdma_dev_put(ctrl->device); - } kfree(ctrl->queues); nvmf_free_options(nctrl->opts); free_ctrl: @@ -748,8 +739,11 @@ static void nvme_rdma_reconnect_ctrl_work(struct work_struct *work) changed = nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_LIVE); WARN_ON_ONCE(!changed); - if (ctrl->queue_count > 1) + if (ctrl->queue_count > 1) { nvme_start_queues(&ctrl->ctrl); + nvme_queue_scan(&ctrl->ctrl); + nvme_queue_async_events(&ctrl->ctrl); + } dev_info(ctrl->ctrl.device, "Successfully reconnected\n"); @@ -1269,7 +1263,7 @@ static int nvme_rdma_route_resolved(struct nvme_rdma_queue *queue) { struct nvme_rdma_ctrl *ctrl = queue->ctrl; struct rdma_conn_param param = { }; - struct nvme_rdma_cm_req priv; + struct nvme_rdma_cm_req priv = { }; int ret; param.qp_num = queue->qp->qp_num; @@ -1318,37 +1312,39 @@ out_destroy_queue_ib: * that caught the event. Since we hold the callout until the controller * deletion is completed, we'll deadlock if the controller deletion will * call rdma_destroy_id on this queue's cm_id. Thus, we claim ownership - * of destroying this queue before-hand, destroy the queue resources - * after the controller deletion completed with the exception of destroying - * the cm_id implicitely by returning a non-zero rc to the callout. + * of destroying this queue before-hand, destroy the queue resources, + * then queue the controller deletion which won't destroy this queue and + * we destroy the cm_id implicitely by returning a non-zero rc to the callout. */ static int nvme_rdma_device_unplug(struct nvme_rdma_queue *queue) { struct nvme_rdma_ctrl *ctrl = queue->ctrl; - int ret, ctrl_deleted = 0; + int ret; - /* First disable the queue so ctrl delete won't free it */ - if (!test_and_clear_bit(NVME_RDMA_Q_CONNECTED, &queue->flags)) - goto out; + /* Own the controller deletion */ + if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_DELETING)) + return 0; - /* delete the controller */ - ret = __nvme_rdma_del_ctrl(ctrl); - if (!ret) { - dev_warn(ctrl->ctrl.device, - "Got rdma device removal event, deleting ctrl\n"); - flush_work(&ctrl->delete_work); + dev_warn(ctrl->ctrl.device, + "Got rdma device removal event, deleting ctrl\n"); - /* Return non-zero so the cm_id will destroy implicitly */ - ctrl_deleted = 1; + /* Get rid of reconnect work if its running */ + cancel_delayed_work_sync(&ctrl->reconnect_work); + /* Disable the queue so ctrl delete won't free it */ + if (test_and_clear_bit(NVME_RDMA_Q_CONNECTED, &queue->flags)) { /* Free this queue ourselves */ - rdma_disconnect(queue->cm_id); - ib_drain_qp(queue->qp); + nvme_rdma_stop_queue(queue); nvme_rdma_destroy_queue_ib(queue); + + /* Return non-zero so the cm_id will destroy implicitly */ + ret = 1; } -out: - return ctrl_deleted; + /* Queue controller deletion */ + queue_work(nvme_rdma_wq, &ctrl->delete_work); + flush_work(&ctrl->delete_work); + return ret; } static int nvme_rdma_cm_handler(struct rdma_cm_id *cm_id, @@ -1648,7 +1644,7 @@ static void nvme_rdma_shutdown_ctrl(struct nvme_rdma_ctrl *ctrl) nvme_rdma_free_io_queues(ctrl); } - if (ctrl->ctrl.state == NVME_CTRL_LIVE) + if (test_bit(NVME_RDMA_Q_CONNECTED, &ctrl->queues[0].flags)) nvme_shutdown_ctrl(&ctrl->ctrl); blk_mq_stop_hw_queues(ctrl->ctrl.admin_q); @@ -1657,15 +1653,27 @@ static void nvme_rdma_shutdown_ctrl(struct nvme_rdma_ctrl *ctrl) nvme_rdma_destroy_admin_queue(ctrl); } +static void __nvme_rdma_remove_ctrl(struct nvme_rdma_ctrl *ctrl, bool shutdown) +{ + nvme_uninit_ctrl(&ctrl->ctrl); + if (shutdown) + nvme_rdma_shutdown_ctrl(ctrl); + + if (ctrl->ctrl.tagset) { + blk_cleanup_queue(ctrl->ctrl.connect_q); + blk_mq_free_tag_set(&ctrl->tag_set); + nvme_rdma_dev_put(ctrl->device); + } + + nvme_put_ctrl(&ctrl->ctrl); +} + static void nvme_rdma_del_ctrl_work(struct work_struct *work) { struct nvme_rdma_ctrl *ctrl = container_of(work, struct nvme_rdma_ctrl, delete_work); - nvme_remove_namespaces(&ctrl->ctrl); - nvme_rdma_shutdown_ctrl(ctrl); - nvme_uninit_ctrl(&ctrl->ctrl); - nvme_put_ctrl(&ctrl->ctrl); + __nvme_rdma_remove_ctrl(ctrl, true); } static int __nvme_rdma_del_ctrl(struct nvme_rdma_ctrl *ctrl) @@ -1698,9 +1706,7 @@ static void nvme_rdma_remove_ctrl_work(struct work_struct *work) struct nvme_rdma_ctrl *ctrl = container_of(work, struct nvme_rdma_ctrl, delete_work); - nvme_remove_namespaces(&ctrl->ctrl); - nvme_uninit_ctrl(&ctrl->ctrl); - nvme_put_ctrl(&ctrl->ctrl); + __nvme_rdma_remove_ctrl(ctrl, false); } static void nvme_rdma_reset_ctrl_work(struct work_struct *work) @@ -1739,6 +1745,7 @@ static void nvme_rdma_reset_ctrl_work(struct work_struct *work) if (ctrl->queue_count > 1) { nvme_start_queues(&ctrl->ctrl); nvme_queue_scan(&ctrl->ctrl); + nvme_queue_async_events(&ctrl->ctrl); } return; diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c index 2fac17a5ad53..47c564b5a289 100644 --- a/drivers/nvme/target/admin-cmd.c +++ b/drivers/nvme/target/admin-cmd.c @@ -13,7 +13,6 @@ */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/module.h> -#include <linux/random.h> #include <generated/utsrelease.h> #include "nvmet.h" @@ -83,7 +82,6 @@ static void nvmet_execute_identify_ctrl(struct nvmet_req *req) { struct nvmet_ctrl *ctrl = req->sq->ctrl; struct nvme_id_ctrl *id; - u64 serial; u16 status = 0; id = kzalloc(sizeof(*id), GFP_KERNEL); @@ -96,10 +94,8 @@ static void nvmet_execute_identify_ctrl(struct nvmet_req *req) id->vid = 0; id->ssvid = 0; - /* generate a random serial number as our controllers are ephemeral: */ - get_random_bytes(&serial, sizeof(serial)); memset(id->sn, ' ', sizeof(id->sn)); - snprintf(id->sn, sizeof(id->sn), "%llx", serial); + snprintf(id->sn, sizeof(id->sn), "%llx", ctrl->serial); memset(id->mn, ' ', sizeof(id->mn)); strncpy((char *)id->mn, "Linux", sizeof(id->mn)); diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c index 8a891ca53367..6559d5afa7bf 100644 --- a/drivers/nvme/target/core.c +++ b/drivers/nvme/target/core.c @@ -13,6 +13,7 @@ */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/module.h> +#include <linux/random.h> #include "nvmet.h" static struct nvmet_fabrics_ops *nvmet_transports[NVMF_TRTYPE_MAX]; @@ -728,6 +729,9 @@ u16 nvmet_alloc_ctrl(const char *subsysnqn, const char *hostnqn, memcpy(ctrl->subsysnqn, subsysnqn, NVMF_NQN_SIZE); memcpy(ctrl->hostnqn, hostnqn, NVMF_NQN_SIZE); + /* generate a random serial number as our controllers are ephemeral: */ + get_random_bytes(&ctrl->serial, sizeof(ctrl->serial)); + kref_init(&ctrl->ref); ctrl->subsys = subsys; diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c index 94e782987cc9..7affd40a6b33 100644 --- a/drivers/nvme/target/loop.c +++ b/drivers/nvme/target/loop.c @@ -414,9 +414,8 @@ static void nvme_loop_del_ctrl_work(struct work_struct *work) struct nvme_loop_ctrl *ctrl = container_of(work, struct nvme_loop_ctrl, delete_work); - nvme_remove_namespaces(&ctrl->ctrl); - nvme_loop_shutdown_ctrl(ctrl); nvme_uninit_ctrl(&ctrl->ctrl); + nvme_loop_shutdown_ctrl(ctrl); nvme_put_ctrl(&ctrl->ctrl); } @@ -501,7 +500,6 @@ out_free_queues: nvme_loop_destroy_admin_queue(ctrl); out_disable: dev_warn(ctrl->ctrl.device, "Removing after reset failure\n"); - nvme_remove_namespaces(&ctrl->ctrl); nvme_uninit_ctrl(&ctrl->ctrl); nvme_put_ctrl(&ctrl->ctrl); } diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h index 57dd6d834c28..76b6eedccaf9 100644 --- a/drivers/nvme/target/nvmet.h +++ b/drivers/nvme/target/nvmet.h @@ -113,6 +113,7 @@ struct nvmet_ctrl { struct mutex lock; u64 cap; + u64 serial; u32 cc; u32 csts; diff --git a/drivers/nvme/target/rdma.c b/drivers/nvme/target/rdma.c index e06d504bdf0c..b4d648536c3e 100644 --- a/drivers/nvme/target/rdma.c +++ b/drivers/nvme/target/rdma.c @@ -77,6 +77,7 @@ enum nvmet_rdma_queue_state { NVMET_RDMA_Q_CONNECTING, NVMET_RDMA_Q_LIVE, NVMET_RDMA_Q_DISCONNECTING, + NVMET_RDMA_IN_DEVICE_REMOVAL, }; struct nvmet_rdma_queue { @@ -615,15 +616,10 @@ static u16 nvmet_rdma_map_sgl_keyed(struct nvmet_rdma_rsp *rsp, if (!len) return 0; - /* use the already allocated data buffer if possible */ - if (len <= NVMET_RDMA_INLINE_DATA_SIZE && rsp->queue->host_qid) { - nvmet_rdma_use_inline_sg(rsp, len, 0); - } else { - status = nvmet_rdma_alloc_sgl(&rsp->req.sg, &rsp->req.sg_cnt, - len); - if (status) - return status; - } + status = nvmet_rdma_alloc_sgl(&rsp->req.sg, &rsp->req.sg_cnt, + len); + if (status) + return status; ret = rdma_rw_ctx_init(&rsp->rw, cm_id->qp, cm_id->port_num, rsp->req.sg, rsp->req.sg_cnt, 0, addr, key, @@ -984,7 +980,10 @@ static void nvmet_rdma_release_queue_work(struct work_struct *w) struct nvmet_rdma_device *dev = queue->dev; nvmet_rdma_free_queue(queue); - rdma_destroy_id(cm_id); + + if (queue->state != NVMET_RDMA_IN_DEVICE_REMOVAL) + rdma_destroy_id(cm_id); + kref_put(&dev->ref, nvmet_rdma_free_dev); } @@ -1233,8 +1232,9 @@ static void __nvmet_rdma_queue_disconnect(struct nvmet_rdma_queue *queue) switch (queue->state) { case NVMET_RDMA_Q_CONNECTING: case NVMET_RDMA_Q_LIVE: - disconnect = true; queue->state = NVMET_RDMA_Q_DISCONNECTING; + case NVMET_RDMA_IN_DEVICE_REMOVAL: + disconnect = true; break; case NVMET_RDMA_Q_DISCONNECTING: break; @@ -1272,6 +1272,62 @@ static void nvmet_rdma_queue_connect_fail(struct rdma_cm_id *cm_id, schedule_work(&queue->release_work); } +/** + * nvme_rdma_device_removal() - Handle RDMA device removal + * @queue: nvmet rdma queue (cm id qp_context) + * @addr: nvmet address (cm_id context) + * + * DEVICE_REMOVAL event notifies us that the RDMA device is about + * to unplug so we should take care of destroying our RDMA resources. + * This event will be generated for each allocated cm_id. + * + * Note that this event can be generated on a normal queue cm_id + * and/or a device bound listener cm_id (where in this case + * queue will be null). + * + * we claim ownership on destroying the cm_id. For queues we move + * the queue state to NVMET_RDMA_IN_DEVICE_REMOVAL and for port + * we nullify the priv to prevent double cm_id destruction and destroying + * the cm_id implicitely by returning a non-zero rc to the callout. + */ +static int nvmet_rdma_device_removal(struct rdma_cm_id *cm_id, + struct nvmet_rdma_queue *queue) +{ + unsigned long flags; + + if (!queue) { + struct nvmet_port *port = cm_id->context; + + /* + * This is a listener cm_id. Make sure that + * future remove_port won't invoke a double + * cm_id destroy. use atomic xchg to make sure + * we don't compete with remove_port. + */ + if (xchg(&port->priv, NULL) != cm_id) + return 0; + } else { + /* + * This is a queue cm_id. Make sure that + * release queue will not destroy the cm_id + * and schedule all ctrl queues removal (only + * if the queue is not disconnecting already). + */ + spin_lock_irqsave(&queue->state_lock, flags); + if (queue->state != NVMET_RDMA_Q_DISCONNECTING) + queue->state = NVMET_RDMA_IN_DEVICE_REMOVAL; + spin_unlock_irqrestore(&queue->state_lock, flags); + nvmet_rdma_queue_disconnect(queue); + flush_scheduled_work(); + } + + /* + * We need to return 1 so that the core will destroy + * it's own ID. What a great API design.. + */ + return 1; +} + static int nvmet_rdma_cm_handler(struct rdma_cm_id *cm_id, struct rdma_cm_event *event) { @@ -1294,20 +1350,11 @@ static int nvmet_rdma_cm_handler(struct rdma_cm_id *cm_id, break; case RDMA_CM_EVENT_ADDR_CHANGE: case RDMA_CM_EVENT_DISCONNECTED: - case RDMA_CM_EVENT_DEVICE_REMOVAL: case RDMA_CM_EVENT_TIMEWAIT_EXIT: - /* - * We can get the device removal callback even for a - * CM ID that we aren't actually using. In that case - * the context pointer is NULL, so we shouldn't try - * to disconnect a non-existing queue. But we also - * need to return 1 so that the core will destroy - * it's own ID. What a great API design.. - */ - if (queue) - nvmet_rdma_queue_disconnect(queue); - else - ret = 1; + nvmet_rdma_queue_disconnect(queue); + break; + case RDMA_CM_EVENT_DEVICE_REMOVAL: + ret = nvmet_rdma_device_removal(cm_id, queue); break; case RDMA_CM_EVENT_REJECTED: case RDMA_CM_EVENT_UNREACHABLE: @@ -1396,9 +1443,10 @@ out_destroy_id: static void nvmet_rdma_remove_port(struct nvmet_port *port) { - struct rdma_cm_id *cm_id = port->priv; + struct rdma_cm_id *cm_id = xchg(&port->priv, NULL); - rdma_destroy_id(cm_id); + if (cm_id) + rdma_destroy_id(cm_id); } static struct nvmet_fabrics_ops nvmet_rdma_ops = { diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index a02981efdad5..eafa6138a6b8 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -1411,6 +1411,8 @@ struct irq_domain *pci_msi_create_irq_domain(struct fwnode_handle *fwnode, if (info->flags & MSI_FLAG_USE_DEF_CHIP_OPS) pci_msi_domain_update_chip_ops(info); + info->flags |= MSI_FLAG_ACTIVATE_EARLY; + domain = msi_create_irq_domain(fwnode, info, parent); if (!domain) return NULL; diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c index 6ccb994bdfcb..c494613c1909 100644 --- a/drivers/perf/arm_pmu.c +++ b/drivers/perf/arm_pmu.c @@ -688,7 +688,7 @@ static int cpu_pmu_request_irq(struct arm_pmu *cpu_pmu, irq_handler_t handler) return 0; } -static DEFINE_MUTEX(arm_pmu_mutex); +static DEFINE_SPINLOCK(arm_pmu_lock); static LIST_HEAD(arm_pmu_list); /* @@ -701,7 +701,7 @@ static int arm_perf_starting_cpu(unsigned int cpu) { struct arm_pmu *pmu; - mutex_lock(&arm_pmu_mutex); + spin_lock(&arm_pmu_lock); list_for_each_entry(pmu, &arm_pmu_list, entry) { if (!cpumask_test_cpu(cpu, &pmu->supported_cpus)) @@ -709,7 +709,7 @@ static int arm_perf_starting_cpu(unsigned int cpu) if (pmu->reset) pmu->reset(pmu); } - mutex_unlock(&arm_pmu_mutex); + spin_unlock(&arm_pmu_lock); return 0; } @@ -821,9 +821,9 @@ static int cpu_pmu_init(struct arm_pmu *cpu_pmu) if (!cpu_hw_events) return -ENOMEM; - mutex_lock(&arm_pmu_mutex); + spin_lock(&arm_pmu_lock); list_add_tail(&cpu_pmu->entry, &arm_pmu_list); - mutex_unlock(&arm_pmu_mutex); + spin_unlock(&arm_pmu_lock); err = cpu_pm_pmu_register(cpu_pmu); if (err) @@ -859,9 +859,9 @@ static int cpu_pmu_init(struct arm_pmu *cpu_pmu) return 0; out_unregister: - mutex_lock(&arm_pmu_mutex); + spin_lock(&arm_pmu_lock); list_del(&cpu_pmu->entry); - mutex_unlock(&arm_pmu_mutex); + spin_unlock(&arm_pmu_lock); free_percpu(cpu_hw_events); return err; } @@ -869,9 +869,9 @@ out_unregister: static void cpu_pmu_destroy(struct arm_pmu *cpu_pmu) { cpu_pm_pmu_unregister(cpu_pmu); - mutex_lock(&arm_pmu_mutex); + spin_lock(&arm_pmu_lock); list_del(&cpu_pmu->entry); - mutex_unlock(&arm_pmu_mutex); + spin_unlock(&arm_pmu_lock); free_percpu(cpu_pmu->hw_events); } @@ -967,11 +967,12 @@ static int of_pmu_irq_cfg(struct arm_pmu *pmu) /* If we didn't manage to parse anything, try the interrupt affinity */ if (cpumask_weight(&pmu->supported_cpus) == 0) { - if (!using_spi) { + int irq = platform_get_irq(pdev, 0); + + if (irq_is_percpu(irq)) { /* If using PPIs, check the affinity of the partition */ - int ret, irq; + int ret; - irq = platform_get_irq(pdev, 0); ret = irq_get_percpu_devid_partition(irq, &pmu->supported_cpus); if (ret) { kfree(irqs); diff --git a/drivers/platform/chrome/cros_ec_proto.c b/drivers/platform/chrome/cros_ec_proto.c index 6c084b266651..04053fe1e980 100644 --- a/drivers/platform/chrome/cros_ec_proto.c +++ b/drivers/platform/chrome/cros_ec_proto.c @@ -19,6 +19,7 @@ #include <linux/device.h> #include <linux/module.h> #include <linux/slab.h> +#include <asm/unaligned.h> #define EC_COMMAND_RETRIES 50 @@ -234,11 +235,44 @@ static int cros_ec_host_command_proto_query_v2(struct cros_ec_device *ec_dev) return ret; } +static int cros_ec_get_host_command_version_mask(struct cros_ec_device *ec_dev, + u16 cmd, u32 *mask) +{ + struct ec_params_get_cmd_versions *pver; + struct ec_response_get_cmd_versions *rver; + struct cros_ec_command *msg; + int ret; + + msg = kmalloc(sizeof(*msg) + max(sizeof(*rver), sizeof(*pver)), + GFP_KERNEL); + if (!msg) + return -ENOMEM; + + msg->version = 0; + msg->command = EC_CMD_GET_CMD_VERSIONS; + msg->insize = sizeof(*rver); + msg->outsize = sizeof(*pver); + + pver = (struct ec_params_get_cmd_versions *)msg->data; + pver->cmd = cmd; + + ret = cros_ec_cmd_xfer(ec_dev, msg); + if (ret > 0) { + rver = (struct ec_response_get_cmd_versions *)msg->data; + *mask = rver->version_mask; + } + + kfree(msg); + + return ret; +} + int cros_ec_query_all(struct cros_ec_device *ec_dev) { struct device *dev = ec_dev->dev; struct cros_ec_command *proto_msg; struct ec_response_get_protocol_info *proto_info; + u32 ver_mask = 0; int ret; proto_msg = kzalloc(sizeof(*proto_msg) + sizeof(*proto_info), @@ -328,6 +362,15 @@ int cros_ec_query_all(struct cros_ec_device *ec_dev) goto exit; } + /* Probe if MKBP event is supported */ + ret = cros_ec_get_host_command_version_mask(ec_dev, + EC_CMD_GET_NEXT_EVENT, + &ver_mask); + if (ret < 0 || ver_mask == 0) + ec_dev->mkbp_event_supported = 0; + else + ec_dev->mkbp_event_supported = 1; + exit: kfree(proto_msg); return ret; @@ -397,3 +440,52 @@ int cros_ec_cmd_xfer_status(struct cros_ec_device *ec_dev, return ret; } EXPORT_SYMBOL(cros_ec_cmd_xfer_status); + +static int get_next_event(struct cros_ec_device *ec_dev) +{ + u8 buffer[sizeof(struct cros_ec_command) + sizeof(ec_dev->event_data)]; + struct cros_ec_command *msg = (struct cros_ec_command *)&buffer; + int ret; + + msg->version = 0; + msg->command = EC_CMD_GET_NEXT_EVENT; + msg->insize = sizeof(ec_dev->event_data); + msg->outsize = 0; + + ret = cros_ec_cmd_xfer(ec_dev, msg); + if (ret > 0) { + ec_dev->event_size = ret - 1; + memcpy(&ec_dev->event_data, msg->data, + sizeof(ec_dev->event_data)); + } + + return ret; +} + +static int get_keyboard_state_event(struct cros_ec_device *ec_dev) +{ + u8 buffer[sizeof(struct cros_ec_command) + + sizeof(ec_dev->event_data.data)]; + struct cros_ec_command *msg = (struct cros_ec_command *)&buffer; + + msg->version = 0; + msg->command = EC_CMD_MKBP_STATE; + msg->insize = sizeof(ec_dev->event_data.data); + msg->outsize = 0; + + ec_dev->event_size = cros_ec_cmd_xfer(ec_dev, msg); + ec_dev->event_data.event_type = EC_MKBP_EVENT_KEY_MATRIX; + memcpy(&ec_dev->event_data.data, msg->data, + sizeof(ec_dev->event_data.data)); + + return ec_dev->event_size; +} + +int cros_ec_get_next_event(struct cros_ec_device *ec_dev) +{ + if (ec_dev->mkbp_event_supported) + return get_next_event(ec_dev); + else + return get_keyboard_state_event(ec_dev); +} +EXPORT_SYMBOL(cros_ec_get_next_event); diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c index d2bc092defd7..da2fe18162e1 100644 --- a/drivers/platform/x86/dell-wmi.c +++ b/drivers/platform/x86/dell-wmi.c @@ -110,8 +110,8 @@ static const struct key_entry dell_wmi_keymap_type_0000[] __initconst = { /* BIOS error detected */ { KE_IGNORE, 0xe00d, { KEY_RESERVED } }, - /* Unknown, defined in ACPI DSDT */ - /* { KE_IGNORE, 0xe00e, { KEY_RESERVED } }, */ + /* Battery was removed or inserted */ + { KE_IGNORE, 0xe00e, { KEY_RESERVED } }, /* Wifi Catcher */ { KE_KEY, 0xe011, { KEY_PROG2 } }, diff --git a/drivers/rapidio/rio_cm.c b/drivers/rapidio/rio_cm.c index cecc15a880de..3fa17ac8df54 100644 --- a/drivers/rapidio/rio_cm.c +++ b/drivers/rapidio/rio_cm.c @@ -1080,8 +1080,8 @@ static int riocm_send_ack(struct rio_channel *ch) static struct rio_channel *riocm_ch_accept(u16 ch_id, u16 *new_ch_id, long timeout) { - struct rio_channel *ch = NULL; - struct rio_channel *new_ch = NULL; + struct rio_channel *ch; + struct rio_channel *new_ch; struct conn_req *req; struct cm_peer *peer; int found = 0; @@ -1155,6 +1155,7 @@ static struct rio_channel *riocm_ch_accept(u16 ch_id, u16 *new_ch_id, spin_unlock_bh(&ch->lock); riocm_put_channel(ch); + ch = NULL; kfree(req); down_read(&rdev_sem); @@ -1172,7 +1173,7 @@ static struct rio_channel *riocm_ch_accept(u16 ch_id, u16 *new_ch_id, if (!found) { /* If peer device object not found, simply ignore the request */ err = -ENODEV; - goto err_nodev; + goto err_put_new_ch; } new_ch->rdev = peer->rdev; @@ -1184,15 +1185,16 @@ static struct rio_channel *riocm_ch_accept(u16 ch_id, u16 *new_ch_id, *new_ch_id = new_ch->id; return new_ch; + +err_put_new_ch: + spin_lock_bh(&idr_lock); + idr_remove(&ch_idr, new_ch->id); + spin_unlock_bh(&idr_lock); + riocm_put_channel(new_ch); + err_put: - riocm_put_channel(ch); -err_nodev: - if (new_ch) { - spin_lock_bh(&idr_lock); - idr_remove(&ch_idr, new_ch->id); - spin_unlock_bh(&idr_lock); - riocm_put_channel(new_ch); - } + if (ch) + riocm_put_channel(ch); *new_ch_id = 0; return ERR_PTR(err); } diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 6c88e31c01f7..620412966beb 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -323,7 +323,7 @@ config REGULATOR_LP872X config REGULATOR_LP873X tristate "TI LP873X Power regulators" - depends on MFD_LP873X && OF + depends on MFD_TI_LP873X && OF help This driver supports LP873X voltage regulator chips. LP873X provides two step-down converters and two general-purpose LDO @@ -635,11 +635,11 @@ config REGULATOR_RC5T583 outputs which can be controlled by i2c communication. config REGULATOR_RK808 - tristate "Rockchip RK808 Power regulators" + tristate "Rockchip RK808/RK818 Power regulators" depends on MFD_RK808 help Select this option to enable the power regulator of ROCKCHIP - PMIC RK808. + PMIC RK808 and RK818. This driver supports the control of different power rails of device through regulator interface. The device supports multiple DCDC/LDO outputs which can be controlled by i2c communication. diff --git a/drivers/regulator/axp20x-regulator.c b/drivers/regulator/axp20x-regulator.c index 6d9ac76a772f..54382ef902c6 100644 --- a/drivers/regulator/axp20x-regulator.c +++ b/drivers/regulator/axp20x-regulator.c @@ -244,16 +244,64 @@ static const struct regulator_desc axp22x_drivevbus_regulator = { .ops = &axp20x_ops_sw, }; -static const struct regulator_linear_range axp809_dcdc4_ranges[] = { - REGULATOR_LINEAR_RANGE(600000, 0x0, 0x2f, 20000), - REGULATOR_LINEAR_RANGE(1800000, 0x30, 0x38, 100000), +static const struct regulator_linear_range axp806_dcdca_ranges[] = { + REGULATOR_LINEAR_RANGE(600000, 0x0, 0x32, 10000), + REGULATOR_LINEAR_RANGE(1120000, 0x33, 0x47, 20000), }; -static const struct regulator_linear_range axp809_dldo1_ranges[] = { +static const struct regulator_linear_range axp806_dcdcd_ranges[] = { + REGULATOR_LINEAR_RANGE(600000, 0x0, 0x2d, 20000), + REGULATOR_LINEAR_RANGE(1600000, 0x2e, 0x3f, 100000), +}; + +static const struct regulator_linear_range axp806_cldo2_ranges[] = { REGULATOR_LINEAR_RANGE(700000, 0x0, 0x1a, 100000), REGULATOR_LINEAR_RANGE(3400000, 0x1b, 0x1f, 200000), }; +static const struct regulator_desc axp806_regulators[] = { + AXP_DESC_RANGES(AXP806, DCDCA, "dcdca", "vina", axp806_dcdca_ranges, + 72, AXP806_DCDCA_V_CTRL, 0x7f, AXP806_PWR_OUT_CTRL1, + BIT(0)), + AXP_DESC(AXP806, DCDCB, "dcdcb", "vinb", 1000, 2550, 50, + AXP806_DCDCB_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL1, BIT(1)), + AXP_DESC_RANGES(AXP806, DCDCC, "dcdcc", "vinc", axp806_dcdca_ranges, + 72, AXP806_DCDCC_V_CTRL, 0x7f, AXP806_PWR_OUT_CTRL1, + BIT(2)), + AXP_DESC_RANGES(AXP806, DCDCD, "dcdcd", "vind", axp806_dcdcd_ranges, + 64, AXP806_DCDCD_V_CTRL, 0x3f, AXP806_PWR_OUT_CTRL1, + BIT(3)), + AXP_DESC(AXP806, DCDCE, "dcdce", "vine", 1100, 3400, 100, + AXP806_DCDCB_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL1, BIT(4)), + AXP_DESC(AXP806, ALDO1, "aldo1", "aldoin", 700, 3300, 100, + AXP806_ALDO1_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL1, BIT(5)), + AXP_DESC(AXP806, ALDO2, "aldo2", "aldoin", 700, 3400, 100, + AXP806_ALDO2_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL1, BIT(6)), + AXP_DESC(AXP806, ALDO3, "aldo3", "aldoin", 700, 3300, 100, + AXP806_ALDO3_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL1, BIT(7)), + AXP_DESC(AXP806, BLDO1, "bldo1", "bldoin", 700, 1900, 100, + AXP806_BLDO1_V_CTRL, 0x0f, AXP806_PWR_OUT_CTRL2, BIT(0)), + AXP_DESC(AXP806, BLDO2, "bldo2", "bldoin", 700, 1900, 100, + AXP806_BLDO2_V_CTRL, 0x0f, AXP806_PWR_OUT_CTRL2, BIT(1)), + AXP_DESC(AXP806, BLDO3, "bldo3", "bldoin", 700, 1900, 100, + AXP806_BLDO3_V_CTRL, 0x0f, AXP806_PWR_OUT_CTRL2, BIT(2)), + AXP_DESC(AXP806, BLDO4, "bldo4", "bldoin", 700, 1900, 100, + AXP806_BLDO4_V_CTRL, 0x0f, AXP806_PWR_OUT_CTRL2, BIT(3)), + AXP_DESC(AXP806, CLDO1, "cldo1", "cldoin", 700, 3300, 100, + AXP806_CLDO1_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL2, BIT(4)), + AXP_DESC_RANGES(AXP806, CLDO2, "cldo2", "cldoin", axp806_cldo2_ranges, + 32, AXP806_CLDO2_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL2, + BIT(5)), + AXP_DESC(AXP806, CLDO3, "cldo3", "cldoin", 700, 3300, 100, + AXP806_CLDO3_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL2, BIT(6)), + AXP_DESC_SW(AXP806, SW, "sw", "swin", AXP806_PWR_OUT_CTRL2, BIT(7)), +}; + +static const struct regulator_linear_range axp809_dcdc4_ranges[] = { + REGULATOR_LINEAR_RANGE(600000, 0x0, 0x2f, 20000), + REGULATOR_LINEAR_RANGE(1800000, 0x30, 0x38, 100000), +}; + static const struct regulator_desc axp809_regulators[] = { AXP_DESC(AXP809, DCDC1, "dcdc1", "vin1", 1600, 3400, 100, AXP22X_DCDC1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(1)), @@ -278,7 +326,7 @@ static const struct regulator_desc axp809_regulators[] = { AXP22X_ALDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(7)), AXP_DESC(AXP809, ALDO3, "aldo3", "aldoin", 700, 3300, 100, AXP22X_ALDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(5)), - AXP_DESC_RANGES(AXP809, DLDO1, "dldo1", "dldoin", axp809_dldo1_ranges, + AXP_DESC_RANGES(AXP809, DLDO1, "dldo1", "dldoin", axp806_cldo2_ranges, 32, AXP22X_DLDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(3)), AXP_DESC(AXP809, DLDO2, "dldo2", "dldoin", 700, 3300, 100, @@ -302,6 +350,7 @@ static const struct regulator_desc axp809_regulators[] = { static int axp20x_set_dcdc_freq(struct platform_device *pdev, u32 dcdcfreq) { struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent); + unsigned int reg = AXP20X_DCDC_FREQ; u32 min, max, def, step; switch (axp20x->variant) { @@ -312,6 +361,14 @@ static int axp20x_set_dcdc_freq(struct platform_device *pdev, u32 dcdcfreq) def = 1500; step = 75; break; + case AXP806_ID: + /* + * AXP806 DCDC work frequency setting has the same range and + * step as AXP22X, but at a different register. + * Fall through to the check below. + * (See include/linux/mfd/axp20x.h) + */ + reg = AXP806_DCDC_FREQ_CTRL; case AXP221_ID: case AXP223_ID: case AXP809_ID: @@ -343,7 +400,7 @@ static int axp20x_set_dcdc_freq(struct platform_device *pdev, u32 dcdcfreq) dcdcfreq = (dcdcfreq - min) / step; - return regmap_update_bits(axp20x->regmap, AXP20X_DCDC_FREQ, + return regmap_update_bits(axp20x->regmap, reg, AXP20X_FREQ_DCDC_MASK, dcdcfreq); } @@ -377,6 +434,7 @@ static int axp20x_regulator_parse_dt(struct platform_device *pdev) static int axp20x_set_dcdc_workmode(struct regulator_dev *rdev, int id, u32 workmode) { struct axp20x_dev *axp20x = rdev_get_drvdata(rdev); + unsigned int reg = AXP20X_DCDC_MODE; unsigned int mask; switch (axp20x->variant) { @@ -392,6 +450,13 @@ static int axp20x_set_dcdc_workmode(struct regulator_dev *rdev, int id, u32 work workmode <<= ffs(mask) - 1; break; + case AXP806_ID: + reg = AXP806_DCDC_MODE_CTRL2; + /* + * AXP806 DCDC regulator IDs have the same range as AXP22X. + * Fall through to the check below. + * (See include/linux/mfd/axp20x.h) + */ case AXP221_ID: case AXP223_ID: case AXP809_ID: @@ -408,7 +473,34 @@ static int axp20x_set_dcdc_workmode(struct regulator_dev *rdev, int id, u32 work return -EINVAL; } - return regmap_update_bits(rdev->regmap, AXP20X_DCDC_MODE, mask, workmode); + return regmap_update_bits(rdev->regmap, reg, mask, workmode); +} + +/* + * This function checks whether a regulator is part of a poly-phase + * output setup based on the registers settings. Returns true if it is. + */ +static bool axp20x_is_polyphase_slave(struct axp20x_dev *axp20x, int id) +{ + u32 reg = 0; + + /* Only AXP806 has poly-phase outputs */ + if (axp20x->variant != AXP806_ID) + return false; + + regmap_read(axp20x->regmap, AXP806_DCDC_MODE_CTRL2, ®); + + switch (id) { + case AXP806_DCDCB: + return (((reg & GENMASK(7, 6)) == BIT(6)) || + ((reg & GENMASK(7, 6)) == BIT(7))); + case AXP806_DCDCC: + return ((reg & GENMASK(7, 6)) == BIT(7)); + case AXP806_DCDCE: + return !!(reg & BIT(5)); + } + + return false; } static int axp20x_regulator_probe(struct platform_device *pdev) @@ -440,6 +532,10 @@ static int axp20x_regulator_probe(struct platform_device *pdev) drivevbus = of_property_read_bool(pdev->dev.parent->of_node, "x-powers,drive-vbus-en"); break; + case AXP806_ID: + regulators = axp806_regulators; + nregulators = AXP806_REG_ID_MAX; + break; case AXP809_ID: regulators = axp809_regulators; nregulators = AXP809_REG_ID_MAX; @@ -458,6 +554,14 @@ static int axp20x_regulator_probe(struct platform_device *pdev) struct regulator_desc *new_desc; /* + * If this regulator is a slave in a poly-phase setup, + * skip it, as its controls are bound to the master + * regulator and won't work. + */ + if (axp20x_is_polyphase_slave(axp20x, i)) + continue; + + /* * Regulators DC1SW and DC5LDO are connected internally, * so we have to handle their supply names separately. * diff --git a/drivers/regulator/qcom_rpm-regulator.c b/drivers/regulator/qcom_rpm-regulator.c index e254272585b2..1b2acc43fea1 100644 --- a/drivers/regulator/qcom_rpm-regulator.c +++ b/drivers/regulator/qcom_rpm-regulator.c @@ -448,6 +448,44 @@ static struct regulator_ops switch_ops = { }; /* + * PM8018 regulators + */ +static const struct qcom_rpm_reg pm8018_pldo = { + .desc.linear_ranges = pldo_ranges, + .desc.n_linear_ranges = ARRAY_SIZE(pldo_ranges), + .desc.n_voltages = 161, + .desc.ops = &uV_ops, + .parts = &rpm8960_ldo_parts, + .supports_force_mode_auto = false, + .supports_force_mode_bypass = false, +}; + +static const struct qcom_rpm_reg pm8018_nldo = { + .desc.linear_ranges = nldo_ranges, + .desc.n_linear_ranges = ARRAY_SIZE(nldo_ranges), + .desc.n_voltages = 64, + .desc.ops = &uV_ops, + .parts = &rpm8960_ldo_parts, + .supports_force_mode_auto = false, + .supports_force_mode_bypass = false, +}; + +static const struct qcom_rpm_reg pm8018_smps = { + .desc.linear_ranges = smps_ranges, + .desc.n_linear_ranges = ARRAY_SIZE(smps_ranges), + .desc.n_voltages = 154, + .desc.ops = &uV_ops, + .parts = &rpm8960_smps_parts, + .supports_force_mode_auto = false, + .supports_force_mode_bypass = false, +}; + +static const struct qcom_rpm_reg pm8018_switch = { + .desc.ops = &switch_ops, + .parts = &rpm8960_switch_parts, +}; + +/* * PM8058 regulators */ static const struct qcom_rpm_reg pm8058_pldo = { @@ -755,6 +793,32 @@ struct rpm_regulator_data { const char *supply; }; +static const struct rpm_regulator_data rpm_pm8018_regulators[] = { + { "s1", QCOM_RPM_PM8018_SMPS1, &pm8018_smps, "vdd_s1" }, + { "s2", QCOM_RPM_PM8018_SMPS2, &pm8018_smps, "vdd_s2" }, + { "s3", QCOM_RPM_PM8018_SMPS3, &pm8018_smps, "vdd_s3" }, + { "s4", QCOM_RPM_PM8018_SMPS4, &pm8018_smps, "vdd_s4" }, + { "s5", QCOM_RPM_PM8018_SMPS5, &pm8018_smps, "vdd_s5" }, + + { "l2", QCOM_RPM_PM8018_LDO2, &pm8018_pldo, "vdd_l2" }, + { "l3", QCOM_RPM_PM8018_LDO3, &pm8018_pldo, "vdd_l3" }, + { "l4", QCOM_RPM_PM8018_LDO4, &pm8018_pldo, "vdd_l4" }, + { "l5", QCOM_RPM_PM8018_LDO5, &pm8018_pldo, "vdd_l5" }, + { "l6", QCOM_RPM_PM8018_LDO6, &pm8018_pldo, "vdd_l7" }, + { "l7", QCOM_RPM_PM8018_LDO7, &pm8018_pldo, "vdd_l7" }, + { "l8", QCOM_RPM_PM8018_LDO8, &pm8018_nldo, "vdd_l8" }, + { "l9", QCOM_RPM_PM8018_LDO9, &pm8921_nldo1200, + "vdd_l9_l10_l11_l12" }, + { "l10", QCOM_RPM_PM8018_LDO10, &pm8018_nldo, "vdd_l9_l10_l11_l12" }, + { "l11", QCOM_RPM_PM8018_LDO11, &pm8018_nldo, "vdd_l9_l10_l11_l12" }, + { "l12", QCOM_RPM_PM8018_LDO12, &pm8018_nldo, "vdd_l9_l10_l11_l12" }, + { "l14", QCOM_RPM_PM8018_LDO14, &pm8018_pldo, "vdd_l14" }, + + { "lvs1", QCOM_RPM_PM8018_LVS1, &pm8018_switch, "lvs1_in" }, + + { } +}; + static const struct rpm_regulator_data rpm_pm8058_regulators[] = { { "l0", QCOM_RPM_PM8058_LDO0, &pm8058_nldo, "vdd_l0_l1_lvs" }, { "l1", QCOM_RPM_PM8058_LDO1, &pm8058_nldo, "vdd_l0_l1_lvs" }, @@ -870,6 +934,8 @@ static const struct rpm_regulator_data rpm_pm8921_regulators[] = { }; static const struct of_device_id rpm_of_match[] = { + { .compatible = "qcom,rpm-pm8018-regulators", + .data = &rpm_pm8018_regulators }, { .compatible = "qcom,rpm-pm8058-regulators", .data = &rpm_pm8058_regulators }, { .compatible = "qcom,rpm-pm8901-regulators", .data = &rpm_pm8901_regulators }, { .compatible = "qcom,rpm-pm8921-regulators", .data = &rpm_pm8921_regulators }, diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c index 40d07ba036e7..5f412a5e35e3 100644 --- a/drivers/regulator/rk808-regulator.c +++ b/drivers/regulator/rk808-regulator.c @@ -1,11 +1,15 @@ /* - * Regulator driver for Rockchip RK808 + * Regulator driver for Rockchip RK808/RK818 * * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd * * Author: Chris Zhong <zyw@rock-chips.com> * Author: Zhang Qing <zhangqing@rock-chips.com> * + * Copyright (C) 2016 PHYTEC Messtechnik GmbH + * + * Author: Wadim Egorov <w.egorov@phytec.de> + * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. @@ -32,6 +36,12 @@ #define RK808_BUCK4_VSEL_MASK 0xf #define RK808_LDO_VSEL_MASK 0x1f +#define RK818_BUCK_VSEL_MASK 0x3f +#define RK818_BUCK4_VSEL_MASK 0x1f +#define RK818_LDO_VSEL_MASK 0x1f +#define RK818_LDO3_ON_VSEL_MASK 0xf +#define RK818_BOOST_ON_VSEL_MASK 0xe0 + /* Ramp rate definitions for buck1 / buck2 only */ #define RK808_RAMP_RATE_OFFSET 3 #define RK808_RAMP_RATE_MASK (3 << RK808_RAMP_RATE_OFFSET) @@ -454,6 +464,108 @@ static const struct regulator_desc rk808_reg[] = { RK808_DCDC_EN_REG, BIT(6)), }; +static const struct regulator_desc rk818_reg[] = { + { + .name = "DCDC_REG1", + .supply_name = "vcc1", + .of_match = of_match_ptr("DCDC_REG1"), + .regulators_node = of_match_ptr("regulators"), + .id = RK818_ID_DCDC1, + .ops = &rk808_reg_ops, + .type = REGULATOR_VOLTAGE, + .min_uV = 712500, + .uV_step = 12500, + .n_voltages = 64, + .vsel_reg = RK818_BUCK1_ON_VSEL_REG, + .vsel_mask = RK818_BUCK_VSEL_MASK, + .enable_reg = RK818_DCDC_EN_REG, + .enable_mask = BIT(0), + .owner = THIS_MODULE, + }, { + .name = "DCDC_REG2", + .supply_name = "vcc2", + .of_match = of_match_ptr("DCDC_REG2"), + .regulators_node = of_match_ptr("regulators"), + .id = RK818_ID_DCDC2, + .ops = &rk808_reg_ops, + .type = REGULATOR_VOLTAGE, + .min_uV = 712500, + .uV_step = 12500, + .n_voltages = 64, + .vsel_reg = RK818_BUCK2_ON_VSEL_REG, + .vsel_mask = RK818_BUCK_VSEL_MASK, + .enable_reg = RK818_DCDC_EN_REG, + .enable_mask = BIT(1), + .owner = THIS_MODULE, + }, { + .name = "DCDC_REG3", + .supply_name = "vcc3", + .of_match = of_match_ptr("DCDC_REG3"), + .regulators_node = of_match_ptr("regulators"), + .id = RK818_ID_DCDC3, + .ops = &rk808_switch_ops, + .type = REGULATOR_VOLTAGE, + .n_voltages = 1, + .enable_reg = RK818_DCDC_EN_REG, + .enable_mask = BIT(2), + .owner = THIS_MODULE, + }, + RK8XX_DESC(RK818_ID_DCDC4, "DCDC_REG4", "vcc4", 1800, 3600, 100, + RK818_BUCK4_ON_VSEL_REG, RK818_BUCK4_VSEL_MASK, + RK818_DCDC_EN_REG, BIT(3), 0), + RK8XX_DESC(RK818_ID_BOOST, "DCDC_BOOST", "boost", 4700, 5400, 100, + RK818_BOOST_LDO9_ON_VSEL_REG, RK818_BOOST_ON_VSEL_MASK, + RK818_DCDC_EN_REG, BIT(4), 0), + RK8XX_DESC(RK818_ID_LDO1, "LDO_REG1", "vcc6", 1800, 3400, 100, + RK818_LDO1_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, + BIT(0), 400), + RK8XX_DESC(RK818_ID_LDO2, "LDO_REG2", "vcc6", 1800, 3400, 100, + RK818_LDO1_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, + BIT(1), 400), + { + .name = "LDO_REG3", + .supply_name = "vcc7", + .of_match = of_match_ptr("LDO_REG3"), + .regulators_node = of_match_ptr("regulators"), + .id = RK818_ID_LDO3, + .ops = &rk808_reg_ops_ranges, + .type = REGULATOR_VOLTAGE, + .n_voltages = 16, + .linear_ranges = rk808_ldo3_voltage_ranges, + .n_linear_ranges = ARRAY_SIZE(rk808_ldo3_voltage_ranges), + .vsel_reg = RK818_LDO3_ON_VSEL_REG, + .vsel_mask = RK818_LDO3_ON_VSEL_MASK, + .enable_reg = RK818_LDO_EN_REG, + .enable_mask = BIT(2), + .enable_time = 400, + .owner = THIS_MODULE, + }, + RK8XX_DESC(RK818_ID_LDO4, "LDO_REG4", "vcc8", 1800, 3400, 100, + RK818_LDO4_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, + BIT(3), 400), + RK8XX_DESC(RK818_ID_LDO5, "LDO_REG5", "vcc7", 1800, 3400, 100, + RK818_LDO5_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, + BIT(4), 400), + RK8XX_DESC(RK818_ID_LDO6, "LDO_REG6", "vcc8", 800, 2500, 100, + RK818_LDO6_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, + BIT(5), 400), + RK8XX_DESC(RK818_ID_LDO7, "LDO_REG7", "vcc7", 800, 2500, 100, + RK818_LDO7_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, + BIT(6), 400), + RK8XX_DESC(RK818_ID_LDO8, "LDO_REG8", "vcc8", 1800, 3400, 100, + RK818_LDO8_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, + BIT(7), 400), + RK8XX_DESC(RK818_ID_LDO9, "LDO_REG9", "vcc9", 1800, 3400, 100, + RK818_BOOST_LDO9_ON_VSEL_REG, RK818_LDO_VSEL_MASK, + RK818_DCDC_EN_REG, BIT(5), 400), + RK8XX_DESC_SWITCH(RK818_ID_SWITCH, "SWITCH_REG", "vcc9", + RK818_DCDC_EN_REG, BIT(6)), + RK8XX_DESC_SWITCH(RK818_ID_HDMI_SWITCH, "HDMI_SWITCH", "h_5v", + RK818_H5V_EN_REG, BIT(0)), + RK8XX_DESC_SWITCH(RK818_ID_OTG_SWITCH, "OTG_SWITCH", "usb", + RK818_DCDC_EN_REG, BIT(7)), +}; + static int rk808_regulator_dt_parse_pdata(struct device *dev, struct device *client_dev, struct regmap *map, @@ -499,7 +611,8 @@ static int rk808_regulator_probe(struct platform_device *pdev) struct regulator_config config = {}; struct regulator_dev *rk808_rdev; struct rk808_regulator_data *pdata; - int ret, i; + const struct regulator_desc *regulators; + int ret, i, nregulators; pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) @@ -512,14 +625,29 @@ static int rk808_regulator_probe(struct platform_device *pdev) platform_set_drvdata(pdev, pdata); + switch (rk808->variant) { + case RK808_ID: + regulators = rk808_reg; + nregulators = RK808_NUM_REGULATORS; + break; + case RK818_ID: + regulators = rk818_reg; + nregulators = RK818_NUM_REGULATORS; + break; + default: + dev_err(&client->dev, "unsupported RK8XX ID %lu\n", + rk808->variant); + return -EINVAL; + } + config.dev = &client->dev; config.driver_data = pdata; config.regmap = rk808->regmap; /* Instantiate the regulators */ - for (i = 0; i < RK808_NUM_REGULATORS; i++) { + for (i = 0; i < nregulators; i++) { rk808_rdev = devm_regulator_register(&pdev->dev, - &rk808_reg[i], &config); + ®ulators[i], &config); if (IS_ERR(rk808_rdev)) { dev_err(&client->dev, "failed to register %d regulator\n", i); @@ -540,8 +668,9 @@ static struct platform_driver rk808_regulator_driver = { module_platform_driver(rk808_regulator_driver); -MODULE_DESCRIPTION("regulator driver for the rk808 series PMICs"); -MODULE_AUTHOR("Chris Zhong<zyw@rock-chips.com>"); -MODULE_AUTHOR("Zhang Qing<zhangqing@rock-chips.com>"); +MODULE_DESCRIPTION("regulator driver for the RK808/RK818 series PMICs"); +MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>"); +MODULE_AUTHOR("Zhang Qing <zhangqing@rock-chips.com>"); +MODULE_AUTHOR("Wadim Egorov <w.egorov@phytec.de>"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:rk808-regulator"); diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index e215f50794b6..d1e080701264 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -187,6 +187,16 @@ config RTC_DRV_ABX80X This driver can also be built as a module. If so, the module will be called rtc-abx80x. +config RTC_DRV_AC100 + tristate "X-Powers AC100" + depends on MFD_AC100 + help + If you say yes here you get support for the real-time clock found + in X-Powers AC100 family peripheral ICs. + + This driver can also be built as a module. If so, the module + will be called rtc-ac100. + config RTC_DRV_AS3722 tristate "ams AS3722 RTC driver" depends on MFD_AS3722 @@ -328,11 +338,11 @@ config RTC_DRV_MAX77686 will be called rtc-max77686. config RTC_DRV_RK808 - tristate "Rockchip RK808 RTC" + tristate "Rockchip RK808/RK818 RTC" depends on MFD_RK808 help If you say yes here you will get support for the - RTC of RK808 PMIC. + RTC of RK808 and RK818 PMIC. This driver can also be built as a module. If so, the module will be called rk808-rtc. diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile index 7cf7ad559c79..8fb994bacdf7 100644 --- a/drivers/rtc/Makefile +++ b/drivers/rtc/Makefile @@ -27,6 +27,7 @@ obj-$(CONFIG_RTC_DRV_AB3100) += rtc-ab3100.o obj-$(CONFIG_RTC_DRV_AB8500) += rtc-ab8500.o obj-$(CONFIG_RTC_DRV_ABB5ZES3) += rtc-ab-b5ze-s3.o obj-$(CONFIG_RTC_DRV_ABX80X) += rtc-abx80x.o +obj-$(CONFIG_RTC_DRV_AC100) += rtc-ac100.o obj-$(CONFIG_RTC_DRV_ARMADA38X) += rtc-armada38x.o obj-$(CONFIG_RTC_DRV_AS3722) += rtc-as3722.o obj-$(CONFIG_RTC_DRV_ASM9260) += rtc-asm9260.o diff --git a/drivers/rtc/rtc-ac100.c b/drivers/rtc/rtc-ac100.c new file mode 100644 index 000000000000..70b4fd0f6122 --- /dev/null +++ b/drivers/rtc/rtc-ac100.c @@ -0,0 +1,627 @@ +/* + * RTC Driver for X-Powers AC100 + * + * Copyright (c) 2016 Chen-Yu Tsai + * + * Chen-Yu Tsai <wens@csie.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + */ + +#include <linux/bcd.h> +#include <linux/clk-provider.h> +#include <linux/device.h> +#include <linux/interrupt.h> +#include <linux/kernel.h> +#include <linux/mfd/ac100.h> +#include <linux/module.h> +#include <linux/mutex.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> +#include <linux/rtc.h> +#include <linux/types.h> + +/* Control register */ +#define AC100_RTC_CTRL_24HOUR BIT(0) + +/* Clock output register bits */ +#define AC100_CLKOUT_PRE_DIV_SHIFT 5 +#define AC100_CLKOUT_PRE_DIV_WIDTH 3 +#define AC100_CLKOUT_MUX_SHIFT 4 +#define AC100_CLKOUT_MUX_WIDTH 1 +#define AC100_CLKOUT_DIV_SHIFT 1 +#define AC100_CLKOUT_DIV_WIDTH 3 +#define AC100_CLKOUT_EN BIT(0) + +/* RTC */ +#define AC100_RTC_SEC_MASK GENMASK(6, 0) +#define AC100_RTC_MIN_MASK GENMASK(6, 0) +#define AC100_RTC_HOU_MASK GENMASK(5, 0) +#define AC100_RTC_WEE_MASK GENMASK(2, 0) +#define AC100_RTC_DAY_MASK GENMASK(5, 0) +#define AC100_RTC_MON_MASK GENMASK(4, 0) +#define AC100_RTC_YEA_MASK GENMASK(7, 0) +#define AC100_RTC_YEA_LEAP BIT(15) +#define AC100_RTC_UPD_TRIGGER BIT(15) + +/* Alarm (wall clock) */ +#define AC100_ALM_INT_ENABLE BIT(0) + +#define AC100_ALM_SEC_MASK GENMASK(6, 0) +#define AC100_ALM_MIN_MASK GENMASK(6, 0) +#define AC100_ALM_HOU_MASK GENMASK(5, 0) +#define AC100_ALM_WEE_MASK GENMASK(2, 0) +#define AC100_ALM_DAY_MASK GENMASK(5, 0) +#define AC100_ALM_MON_MASK GENMASK(4, 0) +#define AC100_ALM_YEA_MASK GENMASK(7, 0) +#define AC100_ALM_ENABLE_FLAG BIT(15) +#define AC100_ALM_UPD_TRIGGER BIT(15) + +/* + * The year parameter passed to the driver is usually an offset relative to + * the year 1900. This macro is used to convert this offset to another one + * relative to the minimum year allowed by the hardware. + * + * The year range is 1970 - 2069. This range is selected to match Allwinner's + * driver. + */ +#define AC100_YEAR_MIN 1970 +#define AC100_YEAR_MAX 2069 +#define AC100_YEAR_OFF (AC100_YEAR_MIN - 1900) + +struct ac100_clkout { + struct clk_hw hw; + struct regmap *regmap; + u8 offset; +}; + +#define to_ac100_clkout(_hw) container_of(_hw, struct ac100_clkout, hw) + +#define AC100_RTC_32K_NAME "ac100-rtc-32k" +#define AC100_RTC_32K_RATE 32768 +#define AC100_CLKOUT_NUM 3 + +static const char * const ac100_clkout_names[AC100_CLKOUT_NUM] = { + "ac100-cko1-rtc", + "ac100-cko2-rtc", + "ac100-cko3-rtc", +}; + +struct ac100_rtc_dev { + struct rtc_device *rtc; + struct device *dev; + struct regmap *regmap; + int irq; + unsigned long alarm; + + struct clk_hw *rtc_32k_clk; + struct ac100_clkout clks[AC100_CLKOUT_NUM]; + struct clk_hw_onecell_data *clk_data; +}; + +/** + * Clock controls for 3 clock output pins + */ + +static const struct clk_div_table ac100_clkout_prediv[] = { + { .val = 0, .div = 1 }, + { .val = 1, .div = 2 }, + { .val = 2, .div = 4 }, + { .val = 3, .div = 8 }, + { .val = 4, .div = 16 }, + { .val = 5, .div = 32 }, + { .val = 6, .div = 64 }, + { .val = 7, .div = 122 }, + { }, +}; + +/* Abuse the fact that one parent is 32768 Hz, and the other is 4 MHz */ +static unsigned long ac100_clkout_recalc_rate(struct clk_hw *hw, + unsigned long prate) +{ + struct ac100_clkout *clk = to_ac100_clkout(hw); + unsigned int reg, div; + + regmap_read(clk->regmap, clk->offset, ®); + + /* Handle pre-divider first */ + if (prate != AC100_RTC_32K_RATE) { + div = (reg >> AC100_CLKOUT_PRE_DIV_SHIFT) & + ((1 << AC100_CLKOUT_PRE_DIV_WIDTH) - 1); + prate = divider_recalc_rate(hw, prate, div, + ac100_clkout_prediv, 0); + } + + div = (reg >> AC100_CLKOUT_DIV_SHIFT) & + (BIT(AC100_CLKOUT_DIV_WIDTH) - 1); + return divider_recalc_rate(hw, prate, div, NULL, + CLK_DIVIDER_POWER_OF_TWO); +} + +static long ac100_clkout_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long prate) +{ + unsigned long best_rate = 0, tmp_rate, tmp_prate; + int i; + + if (prate == AC100_RTC_32K_RATE) + return divider_round_rate(hw, rate, &prate, NULL, + AC100_CLKOUT_DIV_WIDTH, + CLK_DIVIDER_POWER_OF_TWO); + + for (i = 0; ac100_clkout_prediv[i].div; i++) { + tmp_prate = DIV_ROUND_UP(prate, ac100_clkout_prediv[i].val); + tmp_rate = divider_round_rate(hw, rate, &tmp_prate, NULL, + AC100_CLKOUT_DIV_WIDTH, + CLK_DIVIDER_POWER_OF_TWO); + + if (tmp_rate > rate) + continue; + if (rate - tmp_rate < best_rate - tmp_rate) + best_rate = tmp_rate; + } + + return best_rate; +} + +static int ac100_clkout_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) +{ + struct clk_hw *best_parent; + unsigned long best = 0; + int i, num_parents = clk_hw_get_num_parents(hw); + + for (i = 0; i < num_parents; i++) { + struct clk_hw *parent = clk_hw_get_parent_by_index(hw, i); + unsigned long tmp, prate = clk_hw_get_rate(parent); + + tmp = ac100_clkout_round_rate(hw, req->rate, prate); + + if (tmp > req->rate) + continue; + if (req->rate - tmp < req->rate - best) { + best = tmp; + best_parent = parent; + } + } + + if (!best) + return -EINVAL; + + req->best_parent_hw = best_parent; + req->best_parent_rate = best; + req->rate = best; + + return 0; +} + +static int ac100_clkout_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long prate) +{ + struct ac100_clkout *clk = to_ac100_clkout(hw); + int div = 0, pre_div = 0; + + do { + div = divider_get_val(rate * ac100_clkout_prediv[pre_div].div, + prate, NULL, AC100_CLKOUT_DIV_WIDTH, + CLK_DIVIDER_POWER_OF_TWO); + if (div >= 0) + break; + } while (prate != AC100_RTC_32K_RATE && + ac100_clkout_prediv[++pre_div].div); + + if (div < 0) + return div; + + pre_div = ac100_clkout_prediv[pre_div].val; + + regmap_update_bits(clk->regmap, clk->offset, + ((1 << AC100_CLKOUT_DIV_WIDTH) - 1) << AC100_CLKOUT_DIV_SHIFT | + ((1 << AC100_CLKOUT_PRE_DIV_WIDTH) - 1) << AC100_CLKOUT_PRE_DIV_SHIFT, + (div - 1) << AC100_CLKOUT_DIV_SHIFT | + (pre_div - 1) << AC100_CLKOUT_PRE_DIV_SHIFT); + + return 0; +} + +static int ac100_clkout_prepare(struct clk_hw *hw) +{ + struct ac100_clkout *clk = to_ac100_clkout(hw); + + return regmap_update_bits(clk->regmap, clk->offset, AC100_CLKOUT_EN, + AC100_CLKOUT_EN); +} + +static void ac100_clkout_unprepare(struct clk_hw *hw) +{ + struct ac100_clkout *clk = to_ac100_clkout(hw); + + regmap_update_bits(clk->regmap, clk->offset, AC100_CLKOUT_EN, 0); +} + +static int ac100_clkout_is_prepared(struct clk_hw *hw) +{ + struct ac100_clkout *clk = to_ac100_clkout(hw); + unsigned int reg; + + regmap_read(clk->regmap, clk->offset, ®); + + return reg & AC100_CLKOUT_EN; +} + +static u8 ac100_clkout_get_parent(struct clk_hw *hw) +{ + struct ac100_clkout *clk = to_ac100_clkout(hw); + unsigned int reg; + + regmap_read(clk->regmap, clk->offset, ®); + + return (reg >> AC100_CLKOUT_MUX_SHIFT) & 0x1; +} + +static int ac100_clkout_set_parent(struct clk_hw *hw, u8 index) +{ + struct ac100_clkout *clk = to_ac100_clkout(hw); + + return regmap_update_bits(clk->regmap, clk->offset, + BIT(AC100_CLKOUT_MUX_SHIFT), + index ? BIT(AC100_CLKOUT_MUX_SHIFT) : 0); +} + +static const struct clk_ops ac100_clkout_ops = { + .prepare = ac100_clkout_prepare, + .unprepare = ac100_clkout_unprepare, + .is_prepared = ac100_clkout_is_prepared, + .recalc_rate = ac100_clkout_recalc_rate, + .determine_rate = ac100_clkout_determine_rate, + .get_parent = ac100_clkout_get_parent, + .set_parent = ac100_clkout_set_parent, + .set_rate = ac100_clkout_set_rate, +}; + +static int ac100_rtc_register_clks(struct ac100_rtc_dev *chip) +{ + struct device_node *np = chip->dev->of_node; + const char *parents[2] = {AC100_RTC_32K_NAME}; + int i, ret; + + chip->clk_data = devm_kzalloc(chip->dev, sizeof(*chip->clk_data) + + sizeof(*chip->clk_data->hws) * + AC100_CLKOUT_NUM, + GFP_KERNEL); + if (!chip->clk_data) + return -ENOMEM; + + chip->rtc_32k_clk = clk_hw_register_fixed_rate(chip->dev, + AC100_RTC_32K_NAME, + NULL, 0, + AC100_RTC_32K_RATE); + if (IS_ERR(chip->rtc_32k_clk)) { + ret = PTR_ERR(chip->rtc_32k_clk); + dev_err(chip->dev, "Failed to register RTC-32k clock: %d\n", + ret); + return ret; + } + + parents[1] = of_clk_get_parent_name(np, 0); + if (!parents[1]) { + dev_err(chip->dev, "Failed to get ADDA 4M clock\n"); + return -EINVAL; + } + + for (i = 0; i < AC100_CLKOUT_NUM; i++) { + struct ac100_clkout *clk = &chip->clks[i]; + struct clk_init_data init = { + .name = ac100_clkout_names[i], + .ops = &ac100_clkout_ops, + .parent_names = parents, + .num_parents = ARRAY_SIZE(parents), + .flags = 0, + }; + + clk->regmap = chip->regmap; + clk->offset = AC100_CLKOUT_CTRL1 + i; + clk->hw.init = &init; + + ret = devm_clk_hw_register(chip->dev, &clk->hw); + if (ret) { + dev_err(chip->dev, "Failed to register clk '%s': %d\n", + init.name, ret); + goto err_unregister_rtc_32k; + } + + chip->clk_data->hws[i] = &clk->hw; + } + + chip->clk_data->num = i; + ret = of_clk_add_hw_provider(np, of_clk_hw_onecell_get, chip->clk_data); + if (ret) + goto err_unregister_rtc_32k; + + return 0; + +err_unregister_rtc_32k: + clk_unregister_fixed_rate(chip->rtc_32k_clk->clk); + + return ret; +} + +static void ac100_rtc_unregister_clks(struct ac100_rtc_dev *chip) +{ + of_clk_del_provider(chip->dev->of_node); + clk_unregister_fixed_rate(chip->rtc_32k_clk->clk); +} + +/** + * RTC related bits + */ +static int ac100_rtc_get_time(struct device *dev, struct rtc_time *rtc_tm) +{ + struct ac100_rtc_dev *chip = dev_get_drvdata(dev); + struct regmap *regmap = chip->regmap; + u16 reg[7]; + int ret; + + ret = regmap_bulk_read(regmap, AC100_RTC_SEC, reg, 7); + if (ret) + return ret; + + rtc_tm->tm_sec = bcd2bin(reg[0] & AC100_RTC_SEC_MASK); + rtc_tm->tm_min = bcd2bin(reg[1] & AC100_RTC_MIN_MASK); + rtc_tm->tm_hour = bcd2bin(reg[2] & AC100_RTC_HOU_MASK); + rtc_tm->tm_wday = bcd2bin(reg[3] & AC100_RTC_WEE_MASK); + rtc_tm->tm_mday = bcd2bin(reg[4] & AC100_RTC_DAY_MASK); + rtc_tm->tm_mon = bcd2bin(reg[5] & AC100_RTC_MON_MASK) - 1; + rtc_tm->tm_year = bcd2bin(reg[6] & AC100_RTC_YEA_MASK) + + AC100_YEAR_OFF; + + return rtc_valid_tm(rtc_tm); +} + +static int ac100_rtc_set_time(struct device *dev, struct rtc_time *rtc_tm) +{ + struct ac100_rtc_dev *chip = dev_get_drvdata(dev); + struct regmap *regmap = chip->regmap; + int year; + u16 reg[8]; + + /* our RTC has a limited year range... */ + year = rtc_tm->tm_year - AC100_YEAR_OFF; + if (year < 0 || year > (AC100_YEAR_MAX - 1900)) { + dev_err(dev, "rtc only supports year in range %d - %d\n", + AC100_YEAR_MIN, AC100_YEAR_MAX); + return -EINVAL; + } + + /* convert to BCD */ + reg[0] = bin2bcd(rtc_tm->tm_sec) & AC100_RTC_SEC_MASK; + reg[1] = bin2bcd(rtc_tm->tm_min) & AC100_RTC_MIN_MASK; + reg[2] = bin2bcd(rtc_tm->tm_hour) & AC100_RTC_HOU_MASK; + reg[3] = bin2bcd(rtc_tm->tm_wday) & AC100_RTC_WEE_MASK; + reg[4] = bin2bcd(rtc_tm->tm_mday) & AC100_RTC_DAY_MASK; + reg[5] = bin2bcd(rtc_tm->tm_mon + 1) & AC100_RTC_MON_MASK; + reg[6] = bin2bcd(year) & AC100_RTC_YEA_MASK; + /* trigger write */ + reg[7] = AC100_RTC_UPD_TRIGGER; + + /* Is it a leap year? */ + if (is_leap_year(year + AC100_YEAR_OFF + 1900)) + reg[6] |= AC100_RTC_YEA_LEAP; + + return regmap_bulk_write(regmap, AC100_RTC_SEC, reg, 8); +} + +static int ac100_rtc_alarm_irq_enable(struct device *dev, unsigned int en) +{ + struct ac100_rtc_dev *chip = dev_get_drvdata(dev); + struct regmap *regmap = chip->regmap; + unsigned int val; + + val = en ? AC100_ALM_INT_ENABLE : 0; + + return regmap_write(regmap, AC100_ALM_INT_ENA, val); +} + +static int ac100_rtc_get_alarm(struct device *dev, struct rtc_wkalrm *alrm) +{ + struct ac100_rtc_dev *chip = dev_get_drvdata(dev); + struct regmap *regmap = chip->regmap; + struct rtc_time *alrm_tm = &alrm->time; + u16 reg[7]; + unsigned int val; + int ret; + + ret = regmap_read(regmap, AC100_ALM_INT_ENA, &val); + if (ret) + return ret; + + alrm->enabled = !!(val & AC100_ALM_INT_ENABLE); + + ret = regmap_bulk_read(regmap, AC100_ALM_SEC, reg, 7); + if (ret) + return ret; + + alrm_tm->tm_sec = bcd2bin(reg[0] & AC100_ALM_SEC_MASK); + alrm_tm->tm_min = bcd2bin(reg[1] & AC100_ALM_MIN_MASK); + alrm_tm->tm_hour = bcd2bin(reg[2] & AC100_ALM_HOU_MASK); + alrm_tm->tm_wday = bcd2bin(reg[3] & AC100_ALM_WEE_MASK); + alrm_tm->tm_mday = bcd2bin(reg[4] & AC100_ALM_DAY_MASK); + alrm_tm->tm_mon = bcd2bin(reg[5] & AC100_ALM_MON_MASK) - 1; + alrm_tm->tm_year = bcd2bin(reg[6] & AC100_ALM_YEA_MASK) + + AC100_YEAR_OFF; + + return 0; +} + +static int ac100_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) +{ + struct ac100_rtc_dev *chip = dev_get_drvdata(dev); + struct regmap *regmap = chip->regmap; + struct rtc_time *alrm_tm = &alrm->time; + u16 reg[8]; + int year; + int ret; + + /* our alarm has a limited year range... */ + year = alrm_tm->tm_year - AC100_YEAR_OFF; + if (year < 0 || year > (AC100_YEAR_MAX - 1900)) { + dev_err(dev, "alarm only supports year in range %d - %d\n", + AC100_YEAR_MIN, AC100_YEAR_MAX); + return -EINVAL; + } + + /* convert to BCD */ + reg[0] = (bin2bcd(alrm_tm->tm_sec) & AC100_ALM_SEC_MASK) | + AC100_ALM_ENABLE_FLAG; + reg[1] = (bin2bcd(alrm_tm->tm_min) & AC100_ALM_MIN_MASK) | + AC100_ALM_ENABLE_FLAG; + reg[2] = (bin2bcd(alrm_tm->tm_hour) & AC100_ALM_HOU_MASK) | + AC100_ALM_ENABLE_FLAG; + /* Do not enable weekday alarm */ + reg[3] = bin2bcd(alrm_tm->tm_wday) & AC100_ALM_WEE_MASK; + reg[4] = (bin2bcd(alrm_tm->tm_mday) & AC100_ALM_DAY_MASK) | + AC100_ALM_ENABLE_FLAG; + reg[5] = (bin2bcd(alrm_tm->tm_mon + 1) & AC100_ALM_MON_MASK) | + AC100_ALM_ENABLE_FLAG; + reg[6] = (bin2bcd(year) & AC100_ALM_YEA_MASK) | + AC100_ALM_ENABLE_FLAG; + /* trigger write */ + reg[7] = AC100_ALM_UPD_TRIGGER; + + ret = regmap_bulk_write(regmap, AC100_ALM_SEC, reg, 8); + if (ret) + return ret; + + return ac100_rtc_alarm_irq_enable(dev, alrm->enabled); +} + +static irqreturn_t ac100_rtc_irq(int irq, void *data) +{ + struct ac100_rtc_dev *chip = data; + struct regmap *regmap = chip->regmap; + unsigned int val = 0; + int ret; + + mutex_lock(&chip->rtc->ops_lock); + + /* read status */ + ret = regmap_read(regmap, AC100_ALM_INT_STA, &val); + if (ret) + goto out; + + if (val & AC100_ALM_INT_ENABLE) { + /* signal rtc framework */ + rtc_update_irq(chip->rtc, 1, RTC_AF | RTC_IRQF); + + /* clear status */ + ret = regmap_write(regmap, AC100_ALM_INT_STA, val); + if (ret) + goto out; + + /* disable interrupt */ + ret = ac100_rtc_alarm_irq_enable(chip->dev, 0); + if (ret) + goto out; + } + +out: + mutex_unlock(&chip->rtc->ops_lock); + return IRQ_HANDLED; +} + +static const struct rtc_class_ops ac100_rtc_ops = { + .read_time = ac100_rtc_get_time, + .set_time = ac100_rtc_set_time, + .read_alarm = ac100_rtc_get_alarm, + .set_alarm = ac100_rtc_set_alarm, + .alarm_irq_enable = ac100_rtc_alarm_irq_enable, +}; + +static int ac100_rtc_probe(struct platform_device *pdev) +{ + struct ac100_dev *ac100 = dev_get_drvdata(pdev->dev.parent); + struct ac100_rtc_dev *chip; + int ret; + + chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL); + platform_set_drvdata(pdev, chip); + chip->dev = &pdev->dev; + chip->regmap = ac100->regmap; + + chip->irq = platform_get_irq(pdev, 0); + if (chip->irq < 0) { + dev_err(&pdev->dev, "No IRQ resource\n"); + return chip->irq; + } + + ret = devm_request_threaded_irq(&pdev->dev, chip->irq, NULL, + ac100_rtc_irq, + IRQF_SHARED | IRQF_ONESHOT, + dev_name(&pdev->dev), chip); + if (ret) { + dev_err(&pdev->dev, "Could not request IRQ\n"); + return ret; + } + + /* always use 24 hour mode */ + regmap_write_bits(chip->regmap, AC100_RTC_CTRL, AC100_RTC_CTRL_24HOUR, + AC100_RTC_CTRL_24HOUR); + + /* disable counter alarm interrupt */ + regmap_write(chip->regmap, AC100_ALM_INT_ENA, 0); + + /* clear counter alarm pending interrupts */ + regmap_write(chip->regmap, AC100_ALM_INT_STA, AC100_ALM_INT_ENABLE); + + chip->rtc = devm_rtc_device_register(&pdev->dev, "rtc-ac100", + &ac100_rtc_ops, THIS_MODULE); + if (IS_ERR(chip->rtc)) { + dev_err(&pdev->dev, "unable to register device\n"); + return PTR_ERR(chip->rtc); + } + + ret = ac100_rtc_register_clks(chip); + if (ret) + return ret; + + dev_info(&pdev->dev, "RTC enabled\n"); + + return 0; +} + +static int ac100_rtc_remove(struct platform_device *pdev) +{ + struct ac100_rtc_dev *chip = platform_get_drvdata(pdev); + + ac100_rtc_unregister_clks(chip); + + return 0; +} + +static const struct of_device_id ac100_rtc_match[] = { + { .compatible = "x-powers,ac100-rtc" }, + { }, +}; +MODULE_DEVICE_TABLE(of, ac100_rtc_match); + +static struct platform_driver ac100_rtc_driver = { + .probe = ac100_rtc_probe, + .remove = ac100_rtc_remove, + .driver = { + .name = "ac100-rtc", + .of_match_table = of_match_ptr(ac100_rtc_match), + }, +}; +module_platform_driver(ac100_rtc_driver); + +MODULE_DESCRIPTION("X-Powers AC100 RTC driver"); +MODULE_AUTHOR("Chen-Yu Tsai <wens@csie.org>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/rtc/rtc-pm8xxx.c b/drivers/rtc/rtc-pm8xxx.c index 795fcbd02ea3..fac835530671 100644 --- a/drivers/rtc/rtc-pm8xxx.c +++ b/drivers/rtc/rtc-pm8xxx.c @@ -428,6 +428,7 @@ static const struct pm8xxx_rtc_regs pm8941_regs = { */ static const struct of_device_id pm8xxx_id_table[] = { { .compatible = "qcom,pm8921-rtc", .data = &pm8921_regs }, + { .compatible = "qcom,pm8018-rtc", .data = &pm8921_regs }, { .compatible = "qcom,pm8058-rtc", .data = &pm8058_regs }, { .compatible = "qcom,pm8941-rtc", .data = &pm8941_regs }, { }, diff --git a/drivers/s390/virtio/Makefile b/drivers/s390/virtio/Makefile index 241891a57caf..df40692a9011 100644 --- a/drivers/s390/virtio/Makefile +++ b/drivers/s390/virtio/Makefile @@ -6,4 +6,8 @@ # it under the terms of the GNU General Public License (version 2 only) # as published by the Free Software Foundation. -obj-$(CONFIG_S390_GUEST) += kvm_virtio.o virtio_ccw.o +s390-virtio-objs := virtio_ccw.o +ifdef CONFIG_S390_GUEST_OLD_TRANSPORT +s390-virtio-objs += kvm_virtio.o +endif +obj-$(CONFIG_S390_GUEST) += $(s390-virtio-objs) diff --git a/drivers/s390/virtio/kvm_virtio.c b/drivers/s390/virtio/kvm_virtio.c index 1d060fd293a3..5e5c11f37b24 100644 --- a/drivers/s390/virtio/kvm_virtio.c +++ b/drivers/s390/virtio/kvm_virtio.c @@ -458,6 +458,8 @@ static int __init kvm_devices_init(void) if (test_devices_support(total_memory_size) < 0) return -ENODEV; + pr_warn("The s390-virtio transport is deprecated. Please switch to a modern host providing virtio-ccw.\n"); + rc = vmem_add_mapping(total_memory_size, PAGE_SIZE); if (rc) return rc; @@ -482,7 +484,7 @@ static int __init kvm_devices_init(void) } /* code for early console output with virtio_console */ -static __init int early_put_chars(u32 vtermno, const char *buf, int count) +static int early_put_chars(u32 vtermno, const char *buf, int count) { char scratch[17]; unsigned int len = count; diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index bf85974be862..17d04c702e1b 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -10410,8 +10410,11 @@ static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id) __ipr_remove(pdev); return rc; } + spin_lock_irqsave(ioa_cfg->host->host_lock, flags); + ioa_cfg->scan_enabled = 1; + schedule_work(&ioa_cfg->work_q); + spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); - scsi_scan_host(ioa_cfg->host); ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight; if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { @@ -10421,10 +10424,8 @@ static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id) } } - spin_lock_irqsave(ioa_cfg->host->host_lock, flags); - ioa_cfg->scan_enabled = 1; - schedule_work(&ioa_cfg->work_q); - spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); + scsi_scan_host(ioa_cfg->host); + return 0; } diff --git a/drivers/thermal/clock_cooling.c b/drivers/thermal/clock_cooling.c index 1b4ff0f4c716..ed5dd0e88657 100644 --- a/drivers/thermal/clock_cooling.c +++ b/drivers/thermal/clock_cooling.c @@ -426,6 +426,7 @@ clock_cooling_register(struct device *dev, const char *clock_name) if (!ccdev) return ERR_PTR(-ENOMEM); + mutex_init(&ccdev->lock); ccdev->dev = dev; ccdev->clk = devm_clk_get(dev, clock_name); if (IS_ERR(ccdev->clk)) diff --git a/drivers/thermal/fair_share.c b/drivers/thermal/fair_share.c index 34fe36504a55..68bd1b569118 100644 --- a/drivers/thermal/fair_share.c +++ b/drivers/thermal/fair_share.c @@ -116,7 +116,9 @@ static int fair_share_throttle(struct thermal_zone_device *tz, int trip) instance->target = get_target_state(tz, cdev, percentage, cur_trip_level); + mutex_lock(&instance->cdev->lock); instance->cdev->updated = false; + mutex_unlock(&instance->cdev->lock); thermal_cdev_update(cdev); } return 0; diff --git a/drivers/thermal/gov_bang_bang.c b/drivers/thermal/gov_bang_bang.c index fc52016d4e85..bb118a152cbb 100644 --- a/drivers/thermal/gov_bang_bang.c +++ b/drivers/thermal/gov_bang_bang.c @@ -71,7 +71,9 @@ static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip) dev_dbg(&instance->cdev->device, "target=%d\n", (int)instance->target); + mutex_lock(&instance->cdev->lock); instance->cdev->updated = false; /* cdev needs update */ + mutex_unlock(&instance->cdev->lock); } mutex_unlock(&tz->lock); diff --git a/drivers/thermal/intel_pch_thermal.c b/drivers/thermal/intel_pch_thermal.c index 6a6ec1c95a7a..9b4815e81b0d 100644 --- a/drivers/thermal/intel_pch_thermal.c +++ b/drivers/thermal/intel_pch_thermal.c @@ -21,6 +21,7 @@ #include <linux/init.h> #include <linux/pci.h> #include <linux/thermal.h> +#include <linux/pm.h> /* Intel PCH thermal Device IDs */ #define PCH_THERMAL_DID_WPT 0x9CA4 /* Wildcat Point */ @@ -65,6 +66,7 @@ struct pch_thermal_device { unsigned long crt_temp; int hot_trip_id; unsigned long hot_temp; + bool bios_enabled; }; static int pch_wpt_init(struct pch_thermal_device *ptd, int *nr_trips) @@ -75,8 +77,10 @@ static int pch_wpt_init(struct pch_thermal_device *ptd, int *nr_trips) *nr_trips = 0; /* Check if BIOS has already enabled thermal sensor */ - if (WPT_TSS_TSDSS & readb(ptd->hw_base + WPT_TSS)) + if (WPT_TSS_TSDSS & readb(ptd->hw_base + WPT_TSS)) { + ptd->bios_enabled = true; goto read_trips; + } tsel = readb(ptd->hw_base + WPT_TSEL); /* @@ -130,9 +134,39 @@ static int pch_wpt_get_temp(struct pch_thermal_device *ptd, int *temp) return 0; } +static int pch_wpt_suspend(struct pch_thermal_device *ptd) +{ + u8 tsel; + + if (ptd->bios_enabled) + return 0; + + tsel = readb(ptd->hw_base + WPT_TSEL); + + writeb(tsel & 0xFE, ptd->hw_base + WPT_TSEL); + + return 0; +} + +static int pch_wpt_resume(struct pch_thermal_device *ptd) +{ + u8 tsel; + + if (ptd->bios_enabled) + return 0; + + tsel = readb(ptd->hw_base + WPT_TSEL); + + writeb(tsel | WPT_TSEL_ETS, ptd->hw_base + WPT_TSEL); + + return 0; +} + struct pch_dev_ops { int (*hw_init)(struct pch_thermal_device *ptd, int *nr_trips); int (*get_temp)(struct pch_thermal_device *ptd, int *temp); + int (*suspend)(struct pch_thermal_device *ptd); + int (*resume)(struct pch_thermal_device *ptd); }; @@ -140,6 +174,8 @@ struct pch_dev_ops { static const struct pch_dev_ops pch_dev_ops_wpt = { .hw_init = pch_wpt_init, .get_temp = pch_wpt_get_temp, + .suspend = pch_wpt_suspend, + .resume = pch_wpt_resume, }; static int pch_thermal_get_temp(struct thermal_zone_device *tzd, int *temp) @@ -269,6 +305,22 @@ static void intel_pch_thermal_remove(struct pci_dev *pdev) pci_disable_device(pdev); } +static int intel_pch_thermal_suspend(struct device *device) +{ + struct pci_dev *pdev = to_pci_dev(device); + struct pch_thermal_device *ptd = pci_get_drvdata(pdev); + + return ptd->ops->suspend(ptd); +} + +static int intel_pch_thermal_resume(struct device *device) +{ + struct pci_dev *pdev = to_pci_dev(device); + struct pch_thermal_device *ptd = pci_get_drvdata(pdev); + + return ptd->ops->resume(ptd); +} + static struct pci_device_id intel_pch_thermal_id[] = { { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCH_THERMAL_DID_WPT) }, { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCH_THERMAL_DID_SKL) }, @@ -276,11 +328,17 @@ static struct pci_device_id intel_pch_thermal_id[] = { }; MODULE_DEVICE_TABLE(pci, intel_pch_thermal_id); +static const struct dev_pm_ops intel_pch_pm_ops = { + .suspend = intel_pch_thermal_suspend, + .resume = intel_pch_thermal_resume, +}; + static struct pci_driver intel_pch_thermal_driver = { .name = "intel_pch_thermal", .id_table = intel_pch_thermal_id, .probe = intel_pch_thermal_probe, .remove = intel_pch_thermal_remove, + .driver.pm = &intel_pch_pm_ops, }; module_pci_driver(intel_pch_thermal_driver); diff --git a/drivers/thermal/intel_powerclamp.c b/drivers/thermal/intel_powerclamp.c index 015ce2eb6eb7..0e4dc0afcfd2 100644 --- a/drivers/thermal/intel_powerclamp.c +++ b/drivers/thermal/intel_powerclamp.c @@ -388,7 +388,7 @@ static int clamp_thread(void *arg) int sleeptime; unsigned long target_jiffies; unsigned int guard; - unsigned int compensation = 0; + unsigned int compensated_ratio; int interval; /* jiffies to sleep for each attempt */ unsigned int duration_jiffies = msecs_to_jiffies(duration); unsigned int window_size_now; @@ -409,8 +409,11 @@ static int clamp_thread(void *arg) * c-states, thus we need to compensate the injected idle ratio * to achieve the actual target reported by the HW. */ - compensation = get_compensation(target_ratio); - interval = duration_jiffies*100/(target_ratio+compensation); + compensated_ratio = target_ratio + + get_compensation(target_ratio); + if (compensated_ratio <= 0) + compensated_ratio = 1; + interval = duration_jiffies * 100 / compensated_ratio; /* align idle time */ target_jiffies = roundup(jiffies, interval); @@ -647,8 +650,8 @@ static int powerclamp_set_cur_state(struct thermal_cooling_device *cdev, goto exit_set; } else if (set_target_ratio > 0 && new_target_ratio == 0) { pr_info("Stop forced idle injection\n"); - set_target_ratio = 0; end_power_clamp(); + set_target_ratio = 0; } else /* adjust currently running */ { set_target_ratio = new_target_ratio; /* make new set_target_ratio visible to other cpus */ diff --git a/drivers/thermal/power_allocator.c b/drivers/thermal/power_allocator.c index 2f1a863a8e15..b4d3116cfdaf 100644 --- a/drivers/thermal/power_allocator.c +++ b/drivers/thermal/power_allocator.c @@ -529,7 +529,9 @@ static void allow_maximum_power(struct thermal_zone_device *tz) continue; instance->target = 0; + mutex_lock(&instance->cdev->lock); instance->cdev->updated = false; + mutex_unlock(&instance->cdev->lock); thermal_cdev_update(instance->cdev); } } diff --git a/drivers/thermal/step_wise.c b/drivers/thermal/step_wise.c index ea9366ad3e6b..bcef2e7c4ec9 100644 --- a/drivers/thermal/step_wise.c +++ b/drivers/thermal/step_wise.c @@ -175,7 +175,9 @@ static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip) update_passive_instance(tz, trip_type, -1); instance->initialized = true; + mutex_lock(&instance->cdev->lock); instance->cdev->updated = false; /* cdev needs update */ + mutex_unlock(&instance->cdev->lock); } mutex_unlock(&tz->lock); diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 5133cd1e10b7..e2fc6161dded 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -1093,7 +1093,9 @@ int power_actor_set_power(struct thermal_cooling_device *cdev, return ret; instance->target = state; + mutex_lock(&cdev->lock); cdev->updated = false; + mutex_unlock(&cdev->lock); thermal_cdev_update(cdev); return 0; @@ -1623,11 +1625,13 @@ void thermal_cdev_update(struct thermal_cooling_device *cdev) struct thermal_instance *instance; unsigned long target = 0; + mutex_lock(&cdev->lock); /* cooling device is updated*/ - if (cdev->updated) + if (cdev->updated) { + mutex_unlock(&cdev->lock); return; + } - mutex_lock(&cdev->lock); /* Make sure cdev enters the deepest cooling state */ list_for_each_entry(instance, &cdev->thermal_instances, cdev_node) { dev_dbg(&cdev->device, "zone%d->target=%lu\n", @@ -1637,9 +1641,9 @@ void thermal_cdev_update(struct thermal_cooling_device *cdev) if (instance->target > target) target = instance->target; } - mutex_unlock(&cdev->lock); cdev->ops->set_cur_state(cdev, target); cdev->updated = true; + mutex_unlock(&cdev->lock); trace_cdev_update(cdev, target); dev_dbg(&cdev->device, "set to state %lu\n", target); } diff --git a/drivers/thermal/thermal_hwmon.c b/drivers/thermal/thermal_hwmon.c index 06fd2ed9ef9d..c41c7742903a 100644 --- a/drivers/thermal/thermal_hwmon.c +++ b/drivers/thermal/thermal_hwmon.c @@ -232,6 +232,7 @@ int thermal_add_hwmon_sysfs(struct thermal_zone_device *tz) return result; } +EXPORT_SYMBOL_GPL(thermal_add_hwmon_sysfs); void thermal_remove_hwmon_sysfs(struct thermal_zone_device *tz) { @@ -270,3 +271,4 @@ void thermal_remove_hwmon_sysfs(struct thermal_zone_device *tz) hwmon_device_unregister(hwmon->device); kfree(hwmon); } +EXPORT_SYMBOL_GPL(thermal_remove_hwmon_sysfs); diff --git a/drivers/vfio/pci/vfio_pci_intrs.c b/drivers/vfio/pci/vfio_pci_intrs.c index 15ecfc9c5f6c..152b43822ef1 100644 --- a/drivers/vfio/pci/vfio_pci_intrs.c +++ b/drivers/vfio/pci/vfio_pci_intrs.c @@ -564,67 +564,80 @@ static int vfio_pci_set_msi_trigger(struct vfio_pci_device *vdev, } static int vfio_pci_set_ctx_trigger_single(struct eventfd_ctx **ctx, - uint32_t flags, void *data) + unsigned int count, uint32_t flags, + void *data) { - int32_t fd = *(int32_t *)data; - - if (!(flags & VFIO_IRQ_SET_DATA_TYPE_MASK)) - return -EINVAL; - /* DATA_NONE/DATA_BOOL enables loopback testing */ if (flags & VFIO_IRQ_SET_DATA_NONE) { - if (*ctx) - eventfd_signal(*ctx, 1); - return 0; + if (*ctx) { + if (count) { + eventfd_signal(*ctx, 1); + } else { + eventfd_ctx_put(*ctx); + *ctx = NULL; + } + return 0; + } } else if (flags & VFIO_IRQ_SET_DATA_BOOL) { - uint8_t trigger = *(uint8_t *)data; + uint8_t trigger; + + if (!count) + return -EINVAL; + + trigger = *(uint8_t *)data; if (trigger && *ctx) eventfd_signal(*ctx, 1); - return 0; - } - /* Handle SET_DATA_EVENTFD */ - if (fd == -1) { - if (*ctx) - eventfd_ctx_put(*ctx); - *ctx = NULL; return 0; - } else if (fd >= 0) { - struct eventfd_ctx *efdctx; - efdctx = eventfd_ctx_fdget(fd); - if (IS_ERR(efdctx)) - return PTR_ERR(efdctx); - if (*ctx) - eventfd_ctx_put(*ctx); - *ctx = efdctx; + } else if (flags & VFIO_IRQ_SET_DATA_EVENTFD) { + int32_t fd; + + if (!count) + return -EINVAL; + + fd = *(int32_t *)data; + if (fd == -1) { + if (*ctx) + eventfd_ctx_put(*ctx); + *ctx = NULL; + } else if (fd >= 0) { + struct eventfd_ctx *efdctx; + + efdctx = eventfd_ctx_fdget(fd); + if (IS_ERR(efdctx)) + return PTR_ERR(efdctx); + + if (*ctx) + eventfd_ctx_put(*ctx); + + *ctx = efdctx; + } return 0; - } else - return -EINVAL; + } + + return -EINVAL; } static int vfio_pci_set_err_trigger(struct vfio_pci_device *vdev, unsigned index, unsigned start, unsigned count, uint32_t flags, void *data) { - if (index != VFIO_PCI_ERR_IRQ_INDEX) + if (index != VFIO_PCI_ERR_IRQ_INDEX || start != 0 || count > 1) return -EINVAL; - /* - * We should sanitize start & count, but that wasn't caught - * originally, so this IRQ index must forever ignore them :-( - */ - - return vfio_pci_set_ctx_trigger_single(&vdev->err_trigger, flags, data); + return vfio_pci_set_ctx_trigger_single(&vdev->err_trigger, + count, flags, data); } static int vfio_pci_set_req_trigger(struct vfio_pci_device *vdev, unsigned index, unsigned start, unsigned count, uint32_t flags, void *data) { - if (index != VFIO_PCI_REQ_IRQ_INDEX || start != 0 || count != 1) + if (index != VFIO_PCI_REQ_IRQ_INDEX || start != 0 || count > 1) return -EINVAL; - return vfio_pci_set_ctx_trigger_single(&vdev->req_trigger, flags, data); + return vfio_pci_set_ctx_trigger_single(&vdev->req_trigger, + count, flags, data); } int vfio_pci_set_irqs_ioctl(struct vfio_pci_device *vdev, uint32_t flags, diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c index 0ddf3a2dbfc4..e3b30ea9ece5 100644 --- a/drivers/vhost/vsock.c +++ b/drivers/vhost/vsock.c @@ -307,6 +307,8 @@ static void vhost_vsock_handle_tx_kick(struct vhost_work *work) vhost_disable_notify(&vsock->dev, vq); for (;;) { + u32 len; + if (!vhost_vsock_more_replies(vsock)) { /* Stop tx until the device processes already * pending replies. Leave tx virtqueue @@ -334,13 +336,15 @@ static void vhost_vsock_handle_tx_kick(struct vhost_work *work) continue; } + len = pkt->len; + /* Only accept correctly addressed packets */ if (le64_to_cpu(pkt->hdr.src_cid) == vsock->guest_cid) virtio_transport_recv_pkt(pkt); else virtio_transport_free_pkt(pkt); - vhost_add_used(vq, head, sizeof(pkt->hdr) + pkt->len); + vhost_add_used(vq, head, sizeof(pkt->hdr) + len); added = true; } diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 114a0c88afb8..e383ecdaca59 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -327,6 +327,8 @@ static inline int virtqueue_add(struct virtqueue *_vq, * host should service the ring ASAP. */ if (out_sgs) vq->notify(&vq->vq); + if (indirect) + kfree(desc); END_USE(vq); return -ENOSPC; } @@ -426,6 +428,7 @@ unmap_release: if (indirect) kfree(desc); + END_USE(vq); return -EIO; } |