- 09 12月, 2014 7 次提交
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm由 Linus Torvalds 提交于
Pull device mapper updates from Mike Snitzer: - Significant DM thin-provisioning performance improvements to meet performance requirements that were requested by the Gluster distributed filesystem. Specifically, dm-thinp now takes care to aggregate IO that will be issued to the same thinp block before issuing IO to the underlying devices. This really helps improve performance on HW RAID6 devices that have a writeback cache because it avoids RMW in the HW RAID controller. - Some stable fixes: fix leak in DM bufio if integrity profiles were enabled, use memzero_explicit in DM crypt to avoid any potential for information leak, and a DM cache fix to properly mark a cache block dirty if it was promoted to the cache via the overwrite optimization. - A few simple DM persistent data library fixes - DM cache multiqueue policy block promotion improvements. - DM cache discard improvements that take advantage of range (multiblock) discard support in the DM bio-prison. This allows for much more efficient bulk discard processing (e.g. when mkfs.xfs discards the entire device). - Some small optimizations in DM core and RCU deference cleanups - DM core changes to suspend/resume code to introduce the new internal suspend/resume interface that the DM thin-pool target now uses to suspend/resume active thin devices when the thin-pool must suspend/resume. This avoids forcing userspace to track all active thin volumes in a thin-pool when the thin-pool is suspended for the purposes of metadata or data space resize. * tag 'dm-3.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (49 commits) dm crypt: use memzero_explicit for on-stack buffer dm space map metadata: fix sm_bootstrap_get_count() dm space map metadata: fix sm_bootstrap_get_nr_blocks() dm bufio: fix memleak when using a dm_buffer's inline bio dm cache: fix spurious cell_defer when dealing with partial block at end of device dm cache: dirty flag was mistakenly being cleared when promoting via overwrite dm cache: only use overwrite optimisation for promotion when in writeback mode dm cache: discard block size must be a multiple of cache block size dm cache: fix a harmless race when working out if a block is discarded dm cache: when reloading a discard bitset allow for a different discard block size dm cache: fix some issues with the new discard range support dm array: if resizing the array is a noop set the new root to the old one dm: use rcu_dereference_protected instead of rcu_dereference dm thin: fix pool_io_hints to avoid looking at max_hw_sectors dm thin: suspend/resume active thin devices when reloading thin-pool dm: enhance internal suspend and resume interface dm thin: do not allow thin device activation while pool is suspended dm: add presuspend_undo hook to target_type dm: return earlier from dm_blk_ioctl if target doesn't implement .ioctl dm thin: remove stale 'trim' message in block comment above pool_message ...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator由 Linus Torvalds 提交于
Pull regulator updates from Mark Brown: "The main thing this time around is support for suspend mode configuration from DT which will enable some very useful power savings on systems where we can't rely on the bootloader configuration. We still don't really support dynamic configuration of this at runtime, that may come later if there is any demand. Summary: - Support for specifying the target regulation mode and voltage during system suspend via DT, enabling power savings in that mode. - Reduce the default verbosity of the logging on boot, improving boot times especially for systems with very large numbers of regulators. - Lots of cleanups and fixes for Maxim PMIC drivers. - New driver for Richtek RT5033" * tag 'regulator-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (62 commits) regulator: core: Fix regualtor_ena_gpio_free not to access pin after freeing regulator: sky81452: Modify Device Tree structure regulator: sky81452: Modify Device Tree structure dt-bindings: Update documentation for "system-power-controller" and fix misspellings of: Rename "poweroff-source" property to "system-power-controller" regulator: max77686: Remove support for board files regulator: max77802: Remove support for board files regulator: max77802: Fill regulator modes translation callback regulator: max77802: Document binding for regulator operating modes regulator: of: Add support for parsing initial and suspend modes regulator: of: Pass the regulator description in the match table regulator: of: Add regulator desc param to of_get_regulator_init_data() regulator: Add mode mapping function to struct regulator_desc regulator: Document binding for initial and suspend modes regulator: core: Add PRE_DISABLE notification regulator: gpio: fix parsing of gpio list regulator: rpm: add support for RPM-controller SMB208 regulator: da9063: Do not transform local IRQ to virtual regulator: sky81452: Modify dependent Kconfig symbol regulator: rt5033: Add RT5033 Regulator device driver ...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap由 Linus Torvalds 提交于
Pull regmap updates from Mark Brown: "A couple of new features this time around, nothing that should have any impact on most users: - Cleanups and optimization of the path for reading back the register defaults from the hardware at startup, reducing boot times for devices that use this (most don't, either populating on demand or providing defaults). - A bus implementation for AC'97 devices" * tag 'regmap-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap: ac97: Add generic AC'97 callbacks regmap: cache: Sort include headers alphabetically regmap: cache: Fix possible ZERO_SIZE_PTR pointer dereferencing error. regmap: cache: use kmalloc_array instead of kmalloc regmap: cache: speed regcache_hw_init() up. regmap: cache: fix errno in regcache_hw_init() regmap: cache: cleanup regcache_hw_init() regmap: cache: fix errno in regcache_hw_init()
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由 Linus Torvalds 提交于
Merge tag 'hwmon-for-linus-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon updates from Guenter Roeck: "Notable changes: - new driver for NCT7802Y - support for TMP435, LM95233, LM95235, NCT6792D, and NXP LM75B - regulator support for PMBus chips, specifically LTX2978 - support for humidity sensors to iio-hwmon bridge driver * tag 'hwmon-for-linus-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (21 commits) hwmon: (tmp401) Detect TMP435 on all addresses it supports hwmon: (lm75) Strengthen detect function hwmon: (gpio-fan) Add a shutdown handler to poweroff the fans hwmon: (gpio-fan) Allow usage of gpio operations that may sleep hwmon: (tmp401) Bail out from tmp401_probe() in case of write errors hwmon: (tmp401) Add support for TI TMP435 hwmon: (lm95234) Add support for LM95233 hwmon: (lm95245) Add support for LM95235 hwmon: (ina2xx) bail-out from ina2xx_probe() in case of configuration errors hwmon: (nct6775) Add blank lines after declarations hwmon: (nct6775) Add support for NCT6792D hwmon: (nct6775) Documentation updates hwmon: (lm75) Add support for the NXP LM75B hwmon: Driver for Nuvoton NCT7802Y hwmon: (ibmpowernv) Convert to module_platform_driver hwmon: (ibmpowernv) Use platform 'id_table' to probe the device hwmon: (iio_hwmon) Add support for humidity sensors hwmon: (ltc2978) Add regulator support hwmon: (pmbus) Add regulator support hwmon: (pmbus) add helpers for byte write and read modify write ...
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git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp由 Linus Torvalds 提交于
Pull EDAC updates from Borislav Petkov: "EDAC updates all over the place: - Enablement for AMD F15h models 0x60 CPUs. Most notably DDR4 RAM support. Out of tree stuff is adding the required PCI IDs. From Aravind Gopalakrishnan. - Enable amd64_edac for 32-bit due to popular demand. From Tomasz Pala. - Convert the AMD MCE injection module to debugfs, where it belongs. - Misc EDAC cleanups" * tag 'edac_for_3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: EDAC, MCE, AMD: Correct formatting of decoded text EDAC, mce_amd_inj: Add an injector function EDAC, mce_amd_inj: Add hw-injection attributes EDAC, mce_amd_inj: Enable direct writes to MCE MSRs EDAC, mce_amd_inj: Convert mce_amd_inj module to debugfs EDAC: Delete unnecessary check before calling pci_dev_put() EDAC, pci_sysfs: remove unneccessary ifdef around entire file ghes_edac: Use snprintf() to silence a static checker warning amd64_edac: Build module on x86-32 EDAC, MCE, AMD: Add decoding table for MC6 xec amd64_edac: Add F15h M60h support {mv64x60,ppc4xx}_edac,: Remove deprecated IRQF_DISABLED EDAC: Sync memory types and names EDAC: Add DDR3 LRDIMM entries to edac_mem_types x86, amd_nb: Add device IDs to NB tables for F15h M60h pci_ids: Add PCI device IDs for F15h M60h
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd由 Linus Torvalds 提交于
Pull MFD updates from Lee Jones: "Changes to the core: - Honour PLATFORM_DEVID_NONE and PLATFORM_DEVID_AUTO dev IDs Changes to existing drivers: - IRQ additions/fixes; axp20x, da9063-core - Code simplification; i2c-dln2 - Regmap additions/fixes; max77693 - Error checking/handling improvements; dln2, db8500-prcmu - Bug fixes; dln2, wm8350-core - DT support/documentation; max77693, max77686, tps65217, twl4030-power, gpio-tc3589x - Decouple syscon interface from platform devices - Use MFD hotplug registration; rtsx_usb, viperboard, hid-sensor-hub - Regulator fixups; sec-core - Power Management additions/fixes; rts5227, tc6393xb - Remove relic/redundant code; ab8500-sysctrl, lpc_sch, max77693-private - Clean-up/coding style changes; tps65090 - Clk additions/fixes; tc6393xb, tc6387xb, t7l66xb - Add USB-SPI support; dln2 - Trivial changes; max14577, arizona-spi, lpc_sch, wm8997-tables, wm5102-tables wm5110-tables, axp20x, atmel-hlcdc, rtsx_pci New drivers/supported devices: - axp288 PMIC support added to axp20x - s2mps13 support added to sec-core - New support for Diolan DLN-2 - New support for atmel-hlcdc" * tag 'mfd-for-linus-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (55 commits) mfd: rtsx: Add func to split u32 into register mfd: atmel-hlcdc: Add Kconfig option description and name mfd: da9063: Get irq base dynamically before registering device mfd: max14577: Fix obvious typo in company name in copyright mfd: axp20x: Constify axp20x_acpi_match and rid unused warning mfd: t7l66xb: prepare/unprepare clocks mfd: tc6387xb: prepare/unprepare clocks mfd: dln2: add support for USB-SPI module mfd: wm5110: Add missing registers for AIF2 channels 3-6 mfd: tc3589x: get rid of static base mfd: arizona: Document HP_CTRL_1L and HP_CTRL_1R registers mfd: wm8997: Mark INTERRUPT_STATUS_2_MASK as readable mfd: tc6393xb: Prepare/unprepare clocks mfd: tps65090: Fix bonkers indenting strategy mfd: tc6393xb: Fail ohci suspend if full state restore is required mfd: lpc_sch: Don't call mfd_remove_devices() mfd: wm8350-core: Fix probable mask then right shift defect mfd: ab8500-sysctrl: Drop ab8500_restart mfd: db8500-prcmu: Provide sane error path values mfd: db8500-prcmu: Check return of devm_ioremap for error ...
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git://git.linaro.org/people/ulf.hansson/mmc由 Linus Torvalds 提交于
Pull MMC updates from Ulf Hansson: "MMC core: - Consolidation and cleanups. - Some improvements regarding error handling. - Increase maximum amount of block devices. - Use correct OCR mask for SDIO when restoring power. - Fix prepared requests while doing BKOPS. - Convert to modern PM ops. - Add mmc_send_tuning() API and convert some hosts to use it. MMC host: - toshsd: New Toshiba PCI SD controller driver. - sdhci: 64-bit ADMA support. - sdhci: Some regulator fixes. - sdhci: HS400 support. - sdhci: Various fixes cleanups. - atmel-mci: Modernization and cleanups. - atmel-mci: Runtime PM support. - omap_hsmmc: Modernization and cleanups. - omap_hsmmc: Fix UHS card with DDR50 support. - dw_mmc: Support for ARM64 and Exynos 7 variant. - dw_mmc: Add support for IMG Pistachio variant. - dw_mmc: Various fixes and cleanups. - mvsdio: DMA fixes. - mxs-mmc: Modernization and cleanups. - mxcmmc: Various fixes" * tag 'mmc-v3.19-1' of git://git.linaro.org/people/ulf.hansson/mmc: (126 commits) mmc: sdhci-msm: Convert to mmc_send_tuning() mmc: sdhci-esdhc-imx: Convert to mmc_send_tuning() mmc: core: Let mmc_send_tuning() to take struct mmc_host* as parameter mmc: queue: Improve error handling during allocation of bounce buffers mmc: sdhci-acpi: Add two host capabilities for Intel mmc: sdhci-pci: Add two host capabilities for BYT mmc: sdhci-acpi: Add SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC mmc: sdhci-pci: Add SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC to BYT mmc: atmel-mci: use probe deferring if dma controller is not ready yet mmc: atmel-mci: stop using specific initcall mmc: atmel-mci: remove __init/__exit attributes mmc: atmel-mci: remove useless DMA stuff for non-dt devices mmc: omap_hsmmc: Fix UHS card with DDR50 support mmc: core: add core-level function for sending tuning commands mmc: core: hold SD Clock before CMD11 during Signal mmc: mxs-mmc: Check for clk_prepare_enable() error mmc: mxs-mmc: Propagate the real error mmc: mxs-mmc: No need to do NULL check on 'iores' mmc: dw_mmc: Add support for IMG Pistachio mmc: mxs-mmc: Simplify PM hooks ...
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- 08 12月, 2014 7 次提交
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由 Guenter Roeck 提交于
TMP435 supports a range of I2C addresses, not just 0x4c. Cc: Patrick Titiano <ptitiano@baylibre.com> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: NJean Delvare <jdelvare@suse.de> Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
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由 Micky Ching 提交于
Add helper function to write u32 to registers, if we want to put u32 value to 4 continuous register, this can help us reduce tedious work. Signed-off-by: NMicky Ching <micky_ching@realsil.com.cn> Signed-off-by: NLee Jones <lee.jones@linaro.org>
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由 Ulf Hansson 提交于
Instead of having a local hack taking care of sending the tuning command and as well to verify the response pattern, let's convert to the common mmc_send_tuning() API instead. Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org> Tested-by: NGeorgi Djakov <gdjakov@mm-sol.com> Acked-by: NGeorgi Djakov <gdjakov@mm-sol.com> Reviewed-by: NStephen Boyd <sboyd@codeaurora.org>
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由 Ulf Hansson 提交于
Instead of having a local function taking care of sending the tuning command, let's use the common mmc_send_tuning() API provided by the mmc core. In this way the request will be handled as any other request by sdhci core. As an effect of this change, the pm_runtime_get_sync() call at esdhc_prepare_tuning() isn't needed any more. This patch will also introduce another change in behavior, since before the response pattern to the tuning command wasn't verified by sdhci-esdhc-imx. The mmc_send_tuning() does that. Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org> Tested-by: NDong Aisheng <b29396@freescale.com> Acked-by: NDong Aisheng <b29396@freescale.com>
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由 Ulf Hansson 提交于
To be able to use mmc_send_tuning() prior the struct mmc_card has been allocated, let's convert it to take the struct mmc_host* as parameter instead. Suggested-by: NStephen Boyd <sboyd@codeaurora.org> Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org> Acked-by: NDong Aisheng <b29396@freescale.com> Reviewed-by: NStephen Boyd <sboyd@codeaurora.org>
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由 Linus Torvalds 提交于
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata由 Linus Torvalds 提交于
Pull libata fixes from Tejun Heo: "Three libata fixes for v3.18. Nothing too interesting. PCI ID ID and quirk additions to ahci and an error handling path fix in sata_fsl" * 'for-3.18-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: ahci: disable MSI on SAMSUNG 0xa800 SSD sata_fsl: fix error handling of irq_of_parse_and_map AHCI: Add DeviceIDs for Sunrise Point-LP SATA controller
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- 07 12月, 2014 2 次提交
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git://www.linux-watchdog.org/linux-watchdog由 Linus Torvalds 提交于
Pull watchdog fix from Wim Van Sebroeck: "Fix the watchdog mask bit offset for Exynos7" * git://www.linux-watchdog.org/linux-watchdog: watchdog: s3c2410_wdt: Fix the mask bit offset for Exynos7
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux由 Linus Torvalds 提交于
Pull i2c fixes from Wolfram Sang: "Here are two more driver bugfixes for I2C which would be good to have" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: cadence: Set the hardware time-out register to maximum value i2c: davinci: generate STP always when NACK is received
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- 06 12月, 2014 4 次提交
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由 Abhilash Kesavan 提交于
The watchdog mask bit offset listed for Exynos7 is incorrect. Fix this. Signed-off-by: NAbhilash Kesavan <a.kesavan@samsung.com> Acked-by: Naveen Krishna Chatradhi <naveenkrishna.ch@gmail.com Reviewd-by: NGuenter Roeck <linux@roeck-us.net> Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull x86 fixes from Thomas Gleixner: "Two final fixlets for 3.18: - Prevent microcode reload wreckage on 32bit - Unbreak cross compilation" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, microcode: Limit the microcode reloading to 64-bit for now x86: Use $(OBJDUMP) instead of plain objdump
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound由 Linus Torvalds 提交于
Pull sound fixlet from Takashi Iwai: "Just one commit for adding a copule of HD-audio quirk entries" * tag 'sound-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda/realtek - Add headset Mic support for new Dell machine
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由 Guenter Roeck 提交于
A chip returning 0x00 in all registers is erroneously detected as LM75. Check hysteresis and temperature limit registers and abort if both are 0 to reduce the likelyhood for this to happen. Reviewed-by: NRob Coulson <rob.coulson@gmail.com> Reviewed-by: NJean Delvare <jdelvare@suse.de> Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
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- 05 12月, 2014 20 次提交
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由 Mark Brown 提交于
Merge remote-tracking branches 'regulator/topic/sky81452' and 'regulator/topic/stub' into regulator-next
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由 Mark Brown 提交于
Merge remote-tracking branches 'regulator/topic/rn5t618', 'regulator/topic/rpm', 'regulator/topic/rt5033', 'regulator/topic/s2mpa01' and 'regulator/topic/s2mps11' into regulator-next
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由 Mark Brown 提交于
Merge remote-tracking branches 'regulator/topic/max77686', 'regulator/topic/max77693', 'regulator/topic/max77802', 'regulator/topic/power-off' and 'regulator/topic/rk808' into regulator-next
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由 Mark Brown 提交于
Merge remote-tracking branches 'regulator/topic/anatop', 'regulator/topic/disable', 'regulator/topic/dummy' and 'regulator/topic/gpio' into regulator-next
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由 Mark Brown 提交于
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由 Mark Brown 提交于
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由 Mark Brown 提交于
Merge branch 'topic/suspend' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-sky81452 Conflicts: drivers/regulator/sky81452-regulator.c
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由 Bhuvanesh Surachari 提交于
Allocation of previous bounce buffer in mmc_init_queue when the current bounce buffer allocation fails was leading to a crash later in __blk_segment_map_sg. Error handling is improved by allocating previous bounce buffer only if the current bounce buffer allocation succeeds. Signed-off-by: NBhuvanesh Surachari <bhuvanesh_surachari@mentor.com> Signed-off-by: NHarish Jenny K N <harish_kandiga@mentor.com> Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
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git://people.freedesktop.org/~airlied/linux由 Linus Torvalds 提交于
Pull drm intel fixes from Dave Airlie: "Two intel stable fixes, that should be it from me for this round" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/i915: Unlock panel even when LVDS is disabled drm/i915: More cautious with pch fifo underruns
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm由 Linus Torvalds 提交于
Pull ACPI backlight fix from Rafael Wysocki: "This is a simple fix for an ACPI backlight regression introduced by a recent commit that overlooked a corner case which should have been taken into account" * tag 'pm+acpi-3.18-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / video: update condition to check if device is in _DOD list
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git://anongit.freedesktop.org/drm-intel由 Dave Airlie 提交于
Silence some pch fifo underrun reports and panel locking backtraces, both cc: stable. * tag 'drm-intel-fixes-2014-12-04' of git://anongit.freedesktop.org/drm-intel: drm/i915: Unlock panel even when LVDS is disabled drm/i915: More cautious with pch fifo underruns
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media由 Linus Torvalds 提交于
Pull media fixes from Mauro Carvalho Chehab: "A core fix and some driver fixes: - regression fix in Remote Controller core affecting RC6 protocol handling - fix video buffer handling in cx23885 - race fix in solo6x10 - fix image selection in smiapp - fix reported payload size on s2255drv - two updates for MAINTAINERS file" * tag 'media/v3.18-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: [media] rc-core: fix toggle handling in the rc6 decoder MAINTAINERS: Update mchehab's addresses [media] cx23885: use sg = sg_next(sg) instead of sg++ [media] s2255drv: fix payload size for JPG, MJPEG [media] Update MAINTAINERS for solo6x10 [media] solo6x10: fix a race in IRQ handler [media] smiapp: Only some selection targets are settable
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由 Masahiro Yamada 提交于
A typo "header=y" was introduced by commit 7071cf7f ("uapi: add missing network related headers to kbuild"). Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com> Cc: Stephen Hemminger <stephen@networkplumber.org> Cc: David Miller <davem@davemloft.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Seung-Woo Kim 提交于
After freeing pin from regulator_ena_gpio_free, loop can access the pin. So this patch fixes not to access pin after freeing. Signed-off-by: NSeung-Woo Kim <sw0312.kim@samsung.com> Signed-off-by: NMark Brown <broonie@kernel.org>
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由 Nishanth Menon 提交于
Poweroff the fans when shutting down the system. Else, echo '1' > /sys/class/hwmon/hwmon0/fan1_target; poweroff leaves the fan running if the System power off does not drive the gpio expander which might control the fan power supply. Signed-off-by: NNishanth Menon <nm@ti.com> Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
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由 Nishanth Menon 提交于
Certain I2C based GPIO expanders could be used in sleepable context, this results in: [ 115.890569] ------------[ cut here ]------------ [ 115.895422] WARNING: CPU: 0 PID: 1115 at drivers/gpio/gpiolib.c:1370 gpiod_set_raw_value+0x40/0x4c() [ 115.905024] Modules linked in: [ 115.908229] CPU: 0 PID: 1115 Comm: sh Tainted: G W 3.18.0-rc7-next-20141203-dirty #1 [ 115.917461] Hardware name: Generic DRA74X (Flattened Device Tree) [ 115.923876] [<c0015368>] (unwind_backtrace) from [<c00119f4>] (show_stack+0x10/0x14) [ 115.932013] [<c00119f4>] (show_stack) from [<c05b78e8>] (dump_stack+0x78/0x94) [ 115.939594] [<c05b78e8>] (dump_stack) from [<c003de28>] (warn_slowpath_common+0x7c/0xb4) [ 115.948094] [<c003de28>] (warn_slowpath_common) from [<c003de7c>] (warn_slowpath_null+0x1c/0x24) [ 115.957315] [<c003de7c>] (warn_slowpath_null) from [<c03461e8>] (gpiod_set_raw_value+0x40/0x4c) [ 115.966457] [<c03461e8>] (gpiod_set_raw_value) from [<c04866f4>] (set_fan_speed+0x4c/0x64) [ 115.975145] [<c04866f4>] (set_fan_speed) from [<c04868a8>] (set_rpm+0x98/0xac) [ 115.982742] [<c04868a8>] (set_rpm) from [<c039fb4c>] (dev_attr_store+0x18/0x24) [ 115.990426] [<c039fb4c>] (dev_attr_store) from [<c01b0a28>] (sysfs_kf_write+0x4c/0x50) [ 115.998742] [<c01b0a28>] (sysfs_kf_write) from [<c01afe1c>] (kernfs_fop_write+0xbc/0x19c) [ 116.007333] [<c01afe1c>] (kernfs_fop_write) from [<c0148cc4>] (vfs_write+0xb0/0x1a0) [ 116.015461] [<c0148cc4>] (vfs_write) from [<c0148fbc>] (SyS_write+0x44/0x84) [ 116.022881] [<c0148fbc>] (SyS_write) from [<c000e5c0>] (ret_fast_syscall+0x0/0x48) [ 116.030833] ---[ end trace 3a0b636123acab82 ]--- So, switch over to sleepable GPIO operations as there is no mandatory need for non-sleepable gpio operations in the fan driver. This allows the fan driver to be used with i2c based gpio expanders such as palmas_gpio. Signed-off-by: NNishanth Menon <nm@ti.com> Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
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由 Bartosz Golaszewski 提交于
The return value of i2c_smbus_read_byte_data() is checked in tmp401_init_client(), but only a warning is printed and the device is registered anyway. This leads to devices being registered even if they cannot be physically detected. Bail out from probe in case of write errors and notify the user. Signed-off-by: NBartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
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由 Patrick Titiano 提交于
Signed-off-by: NPatrick Titiano <ptitiano@baylibre.com> [Bartosz Golaszewski: prepared for submission, code review fixes] Signed-off-by: NBartosz Golaszewski <bgolaszewski@baylibre.com> [Guenter Roeck: Merged two patches into one] Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
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由 Vishnu Motghare 提交于
Cadence I2C controller has bug wherein it generates invalid read transactions after timeout in master receiver mode. This driver does not use the HW timeout and this interrupt is disabled but the feature itself cannot be disabled. Hence, this patch writes the maximum value (0xFF) to this register. This is one of the workarounds to this bug and it will not avoid the issue completely but reduces the chances of error. Signed-off-by: NVishnu Motghare <vishnum@xilinx.com> Signed-off-by: NHarini Katakam <harinik@xilinx.com> Signed-off-by: NWolfram Sang <wsa@the-dreams.de> Cc: stable@kernel.org
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由 Grygorii Strashko 提交于
According to I2C specification the NACK should be handled as follows: "When SDA remains HIGH during this ninth clock pulse, this is defined as the Not Acknowledge signal. The master can then generate either a STOP condition to abort the transfer, or a repeated START condition to start a new transfer." [I2C spec Rev. 6, 3.1.6: http://www.nxp.com/documents/user_manual/UM10204.pdf] Currently the Davinci i2c driver interrupts the transfer on receipt of a NACK but fails to send a STOP in some situations and so makes the bus stuck until next I2C IP reset (idle/enable). For example, the issue will happen during SMBus read transfer which consists from two i2c messages write command/address and read data: S Slave Address Wr A Command Code A Sr Slave Address Rd A D1..Dn A P <--- write -----------------------> <--- read ---------------------> The I2C client device will send NACK if it can't recognize "Command Code" and it's expected from I2C master to generate STP in this case. But now, Davinci i2C driver will just exit with -EREMOTEIO and STP will not be generated. Hence, fix it by generating Stop condition (STP) always when NACK is received. This patch fixes Davinci I2C in the same way it was done for OMAP I2C commit cda2109a ("i2c: omap: query STP always when NACK is received"). Reviewed-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de> Reported-by: NHein Tibosch <hein_tibosch@yahoo.es> Signed-off-by: NGrygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: NWolfram Sang <wsa@the-dreams.de> Cc: stable@kernel.org
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