| Commit message (Collapse) | Author | Age |
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git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next
Allow parent rate changes for i2s on rk3288
and rockchip as well as s3c24xx restart handlers.
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Immutable branch with restart handler patches for v3.18
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clk-next
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Previously, the TI clock driver initialized all the clocks hierarchically
under each separate clock provider node. Now, each clock that requires
IO access will instead check their parent node to find out which IO range
to use.
This patch allows the TI clock driver to use a few new features provided
by the generic of_clk_init, and also allows registration of clock nodes
outside the clock hierarchy (for example, any external clocks.)
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Jyri Sarha <jsarha@ti.com>
Cc: Stefan Assmann <sassmann@kpanic.de>
Acked-by: Tony Lindgren <tony@atomide.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into clk-next
Allwinner Clocks Additions for 3.18
The most important part of this serie is the addition of the phase API to
handle the MMC clocks in the Allwinner SoCs.
Apart from that, the A23 gained a new mbus driver, and there's a fix for a
incorrect divider table on the APB0 clock.
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The current phase API doesn't look into the actual hardware to get the phase
value, but will rather get it from a variable only set by the set_phase
function.
This will cause issue when the client driver will never call the set_phase
function, where we can end up having a reported phase that will not match what
the hardware has been programmed to by the bootloader or what phase is
programmed out of reset.
Add a new get_phase function for the drivers to implement so that we can get
this value.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Hans de Goede <hdegoede@redhat.com>
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CLK_OF_DECLARE relies on OF_DECLARE_1 that is defined in of.h. Fixes build
errors when one use CLK_OF_DECLARE but doesn't include of.h
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
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A common operation for a clock signal generator is to shift the phase of
that signal. This patch introduces a new function to the clk.h API to
dynamically adjust the phase of a clock signal. Additionally this patch
introduces support for the new function in the common clock framework
via the .set_phase call back in struct clk_ops.
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Hans de Goede <hdegoede@redhat.com>
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The added gpio-gate-clock is a basic clock that can be enabled and
disabled trough a gpio output. The DT binding document for the clock
is also added. For EPROBE_DEFER handling the registering of the clock
has to be delayed until of_clk_get() call time.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
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git://nv-tegra.nvidia.com/user/pdeschrijver/linux into clk-next
Tegra clk updates for 3.18
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Rob Clark reports a lockdep splat that involves the prepare_lock
chained with the mmap semaphore.
======================================================
[ INFO: possible circular locking dependency detected ]
3.17.0-rc1-00050-g07a489b #802 Tainted: G W
-------------------------------------------------------
Xorg.bin/5413 is trying to acquire lock:
(prepare_lock){+.+.+.}, at: [<c0781280>] clk_prepare_lock+0x88/0xfc
but task is already holding lock:
(qcom_iommu_lock){+.+...}, at: [<c079f664>] qcom_iommu_unmap+0x1c/0x1f0
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #4 (qcom_iommu_lock){+.+...}:
[<c079f860>] qcom_iommu_map+0x28/0x450
[<c079eb50>] iommu_map+0xc8/0x12c
[<c056c1fc>] msm_iommu_map+0xb4/0x130
[<c05697bc>] msm_gem_get_iova_locked+0x9c/0xe8
[<c0569854>] msm_gem_get_iova+0x4c/0x64
[<c0562208>] mdp4_kms_init+0x4c4/0x6c0
[<c056881c>] msm_load+0x2ac/0x34c
[<c0545724>] drm_dev_register+0xac/0x108
[<c0547510>] drm_platform_init+0x50/0xf0
[<c0578a60>] try_to_bring_up_master.part.3+0xc8/0x108
[<c0578b48>] component_master_add_with_match+0xa8/0x104
[<c0568294>] msm_pdev_probe+0x64/0x70
[<c057e704>] platform_drv_probe+0x2c/0x60
[<c057cff8>] driver_probe_device+0x108/0x234
[<c057b65c>] bus_for_each_drv+0x64/0x98
[<c057cec0>] device_attach+0x78/0x8c
[<c057c590>] bus_probe_device+0x88/0xac
[<c057c9b8>] deferred_probe_work_func+0x68/0x9c
[<c0259db4>] process_one_work+0x1a0/0x40c
[<c025a710>] worker_thread+0x44/0x4d8
[<c025ec54>] kthread+0xd8/0xec
[<c020e9a8>] ret_from_fork+0x14/0x2c
-> #3 (&dev->struct_mutex){+.+.+.}:
[<c0541188>] drm_gem_mmap+0x38/0xd0
[<c05695b8>] msm_gem_mmap+0xc/0x5c
[<c02f0b6c>] mmap_region+0x35c/0x6c8
[<c02f11ec>] do_mmap_pgoff+0x314/0x398
[<c02de1e0>] vm_mmap_pgoff+0x84/0xb4
[<c02ef83c>] SyS_mmap_pgoff+0x94/0xbc
[<c020e8e0>] ret_fast_syscall+0x0/0x48
-> #2 (&mm->mmap_sem){++++++}:
[<c0321138>] filldir64+0x68/0x180
[<c0333fe0>] dcache_readdir+0x188/0x22c
[<c0320ed0>] iterate_dir+0x9c/0x11c
[<c03213b0>] SyS_getdents64+0x78/0xe8
[<c020e8e0>] ret_fast_syscall+0x0/0x48
-> #1 (&sb->s_type->i_mutex_key#3){+.+.+.}:
[<c03fc544>] __create_file+0x58/0x1dc
[<c03fc70c>] debugfs_create_dir+0x1c/0x24
[<c0781c7c>] clk_debug_create_subtree+0x20/0x170
[<c0be2af8>] clk_debug_init+0xec/0x14c
[<c0208c70>] do_one_initcall+0x8c/0x1c8
[<c0b9cce4>] kernel_init_freeable+0x13c/0x1dc
[<c0877bc4>] kernel_init+0x8/0xe8
[<c020e9a8>] ret_from_fork+0x14/0x2c
-> #0 (prepare_lock){+.+.+.}:
[<c087c408>] mutex_lock_nested+0x70/0x3e8
[<c0781280>] clk_prepare_lock+0x88/0xfc
[<c0782c50>] clk_prepare+0xc/0x24
[<c079f474>] __enable_clocks.isra.4+0x18/0xa4
[<c079f614>] __flush_iotlb_va+0xe0/0x114
[<c079f6f4>] qcom_iommu_unmap+0xac/0x1f0
[<c079ea3c>] iommu_unmap+0x9c/0xe8
[<c056c2fc>] msm_iommu_unmap+0x64/0x84
[<c0569da4>] msm_gem_free_object+0x11c/0x338
[<c05413ec>] drm_gem_object_handle_unreference_unlocked+0xfc/0x130
[<c0541604>] drm_gem_object_release_handle+0x50/0x68
[<c0447a98>] idr_for_each+0xa8/0xdc
[<c0541c10>] drm_gem_release+0x1c/0x28
[<c0540b3c>] drm_release+0x370/0x428
[<c031105c>] __fput+0x98/0x1e8
[<c025d73c>] task_work_run+0xb0/0xfc
[<c02477ec>] do_exit+0x2ec/0x948
[<c0247ec0>] do_group_exit+0x4c/0xb8
[<c025180c>] get_signal+0x28c/0x6ac
[<c0211204>] do_signal+0xc4/0x3e4
[<c02116cc>] do_work_pending+0xb4/0xc4
[<c020e938>] work_pending+0xc/0x20
other info that might help us debug this:
Chain exists of:
prepare_lock --> &dev->struct_mutex --> qcom_iommu_lock
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(qcom_iommu_lock);
lock(&dev->struct_mutex);
lock(qcom_iommu_lock);
lock(prepare_lock);
*** DEADLOCK ***
3 locks held by Xorg.bin/5413:
#0: (drm_global_mutex){+.+.+.}, at: [<c0540800>] drm_release+0x34/0x428
#1: (&dev->struct_mutex){+.+.+.}, at: [<c05413bc>] drm_gem_object_handle_unreference_unlocked+0xcc/0x130
#2: (qcom_iommu_lock){+.+...}, at: [<c079f664>] qcom_iommu_unmap+0x1c/0x1f0
stack backtrace:
CPU: 1 PID: 5413 Comm: Xorg.bin Tainted: G W 3.17.0-rc1-00050-g07a489b #802
[<c0216290>] (unwind_backtrace) from [<c0211d8c>] (show_stack+0x10/0x14)
[<c0211d8c>] (show_stack) from [<c087a078>] (dump_stack+0x98/0xb8)
[<c087a078>] (dump_stack) from [<c027f024>] (print_circular_bug+0x218/0x340)
[<c027f024>] (print_circular_bug) from [<c0283e08>] (__lock_acquire+0x1d24/0x20b8)
[<c0283e08>] (__lock_acquire) from [<c0284774>] (lock_acquire+0x9c/0xbc)
[<c0284774>] (lock_acquire) from [<c087c408>] (mutex_lock_nested+0x70/0x3e8)
[<c087c408>] (mutex_lock_nested) from [<c0781280>] (clk_prepare_lock+0x88/0xfc)
[<c0781280>] (clk_prepare_lock) from [<c0782c50>] (clk_prepare+0xc/0x24)
[<c0782c50>] (clk_prepare) from [<c079f474>] (__enable_clocks.isra.4+0x18/0xa4)
[<c079f474>] (__enable_clocks.isra.4) from [<c079f614>] (__flush_iotlb_va+0xe0/0x114)
[<c079f614>] (__flush_iotlb_va) from [<c079f6f4>] (qcom_iommu_unmap+0xac/0x1f0)
[<c079f6f4>] (qcom_iommu_unmap) from [<c079ea3c>] (iommu_unmap+0x9c/0xe8)
[<c079ea3c>] (iommu_unmap) from [<c056c2fc>] (msm_iommu_unmap+0x64/0x84)
[<c056c2fc>] (msm_iommu_unmap) from [<c0569da4>] (msm_gem_free_object+0x11c/0x338)
[<c0569da4>] (msm_gem_free_object) from [<c05413ec>] (drm_gem_object_handle_unreference_unlocked+0xfc/0x130)
[<c05413ec>] (drm_gem_object_handle_unreference_unlocked) from [<c0541604>] (drm_gem_object_release_handle+0x50/0x68)
[<c0541604>] (drm_gem_object_release_handle) from [<c0447a98>] (idr_for_each+0xa8/0xdc)
[<c0447a98>] (idr_for_each) from [<c0541c10>] (drm_gem_release+0x1c/0x28)
[<c0541c10>] (drm_gem_release) from [<c0540b3c>] (drm_release+0x370/0x428)
[<c0540b3c>] (drm_release) from [<c031105c>] (__fput+0x98/0x1e8)
[<c031105c>] (__fput) from [<c025d73c>] (task_work_run+0xb0/0xfc)
[<c025d73c>] (task_work_run) from [<c02477ec>] (do_exit+0x2ec/0x948)
[<c02477ec>] (do_exit) from [<c0247ec0>] (do_group_exit+0x4c/0xb8)
[<c0247ec0>] (do_group_exit) from [<c025180c>] (get_signal+0x28c/0x6ac)
[<c025180c>] (get_signal) from [<c0211204>] (do_signal+0xc4/0x3e4)
[<c0211204>] (do_signal) from [<c02116cc>] (do_work_pending+0xb4/0xc4)
[<c02116cc>] (do_work_pending) from [<c020e938>] (work_pending+0xc/0x20)
We can break this chain if we don't hold the prepare_lock while
creating debugfs directories. We only hold the prepare_lock right
now because we're traversing the clock tree recursively and we
don't want the hierarchy to change during the traversal.
Replacing this traversal with a simple linked list walk allows us
to only grab a list lock instead of the prepare_lock, thus
breaking the lock chain.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"Changes to existing drivers:
- DT clean-ups in da9055-core, max14577, rn5t618, arizona, hi6421, stmpe, twl4030
- Export symbols for use in modules in max14577
- Plenty of static code analysis/Coccinelle fixes throughout the SS
- Regmap clean-ups in arizona, wm5102, wm5110, da9052, tps65217, rk808
- Remove unused/duplicate code in da9052, 88pm860x, ti_ssp, lpc_sch, arizona
- Bug fixes in ti_am335x_tscadc, da9052, ti_am335x_tscadc, rtsx_pcr
- IRQ fixups in arizona, stmpe, max14577
- Regulator related changes in axp20x
- Pass DMA coherency information from parent => child in MFD core
- Rename DT document files for consistency
- Add ACPI support to the MFD core
- Add Andreas Werner to MAINTAINERS for MEN F21BMC
New drivers/supported devices:
- New driver for MEN 14F021P00 Board Management Controller
- New driver for Ricoh RN5T618 PMIC
- New driver for Rockchip RK808
- New driver for HiSilicon Hi6421 PMIC
- New driver for Qualcomm SPMI PMICs
- Add support for Intel Braswell in lpc_ich
- Add support for Intel 9 Series PCH in lpc_ich
- Add support for Intel Quark ILB in lpc_sch"
[ Delayed to after the poweer/reset pull due to Kconfig problems with
recursive Kconfig select/depends-on chains. - Linus ]
* tag 'mfd-for-linus-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (79 commits)
mfd: cros_ec: wait for completion of commands that return IN_PROGRESS
i2c: i2c-cros-ec-tunnel: Set retries to 3
mfd: cros_ec: move locking into cros_ec_cmd_xfer
mfd: cros_ec: stop calling ->cmd_xfer() directly
mfd: cros_ec: Delay for 50ms when we see EC_CMD_REBOOT_EC
MAINTAINERS: Adds Andreas Werner to maintainers list for MEN F21BMC
mfd: arizona: Correct mask to allow setting micbias external cap
mfd: Add ACPI support
Revert "mfd: wm5102: Manually apply register patch"
mfd: ti_am335x_tscadc: Update logic in CTRL register for 5-wire TS
mfd: dt-bindings: atmel-gpbr: Rename doc file to conform to naming convention
mfd: dt-bindings: qcom-pm8xxx: Rename doc file to conform to naming convention
mfd: Inherit coherent_dma_mask from parent device
mfd: Document DT bindings for Qualcomm SPMI PMICs
mfd: Add support for Qualcomm SPMI PMICs
mfd: dt-bindings: pm8xxx: Add new compatible string
mfd: axp209x: Drop the parent supplies field
mfd: twl4030-power: Use 'ti,system-power-controller' as alternative way to support system power off
mfd: dt-bindings: twl4030-power: Use the standard property to mark power control
mfd: syscon: Add Atmel GPBR DT bindings documention
...
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Instead of having users of the ChromeOS EC call the interface-specific
cmd_xfer() callback directly, introduce a central cros_ec_cmd_xfer()
to use instead. This will allow us to put all the locking and retry
logic in one place instead of duplicating it across the different
drivers.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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If an MFD device is backed by ACPI namespace, we should allow subdevice
drivers to access their corresponding ACPI companion devices through normal
means (e.g using ACPI_COMPANION()).
This patch adds such support to the MFD core. If the MFD parent device
does not specify any ACPI _HID/_CID for the child device, the child
device will share the parent ACPI companion device. Otherwise the child
device will be assigned with the corresponding ACPI companion, if found
in the namespace below the parent.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The logic in AFE_Pen_Ctrl bitmask in the CTRL register is different for five
wire versus four or eight wire touschscreens. This patch should fix this for
five-wire touch screens. There should be no change needed here for four and
eight wire tousch screens.
Signed-off-by: Jeff Lance <j-lance1@ti.com>
[bigeasy: keep the change mfd only]
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Allow regmap to provide debugfs access to the register map by telling it
what registers are valid.
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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This adds driver to support HiSilicon Hi6421 PMIC. Hi6421 includes multi-
functions, such as regulators, codec, ADCs, Coulomb counter, etc.
This driver includes core APIs _only_.
Drivers for individul components, like voltage regulators, are
implemented in corresponding driver directories and files.
Registers in Hi6421 are memory mapped, so using regmap-mmio API.
Signed-off-by: Guodong Xu <guodong.xu@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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This patch adds the PCI id for Intel Quark ILB.
It will be used for GPIO and Multifunction device driver.
Signed-off-by: Josef Ahmad <josef.ahmad@intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The RK808 chip is a power management IC for multimedia and handheld
devices. It contains the following components:
- Regulators
- RTC
- Clkout
The RK808 core driver is registered as a platform driver and provides
communication through I2C with the host device for the different
components.
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Zhang Qing <zhangqing@rock-chips.com>
Tested-by: Heiko <heiko@sntech.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Current code init regmap with &da9052_regmap_config for both da9052-spi and
da9052-i2c drivers. da9052-spi sets the read_flag_mask.
The same setting may be applied for da9052-i2c if da9052-spi driver is loaded
first because they actually use the same regmap_config setting.
Fix this issue by using a local variable for regmap_config in da9052-spi driver,
so the settings in spi driver won't impact the settings in i2c driver.
Also makes da9052_regmap_config const to avoid similar issue.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Some arizona devices have a second asynchronous sample rate, add the
registers necessary to support this.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Ricoh RN5T618 is a power management IC which integrates 3 step-down
DCDC converters, 7 low-dropout regulators, a Li-ion battery charger,
fuel gauge, ADC, GPIOs and a watchdog timer.
This commit adds a MFD core driver to support the I2C communication
with the device.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The include guard doesn't work as intended due to the transposition
typo DAVINCI -> DAVINIC.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The header file include/linux/mfd/ti_ssp.h does not seem to be used
anywhere. It was orphaned by 3033ee62 "mfd: Remove obsolete ti-ssp
driver". Remove it.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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This patch improves support for the flash cell of
max77693 mfd by adding relevant of_compatible field
and a structure for caching related platform data.
Added are also FLASH registers related macro definitions.
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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According to the MAX77693 documentation the name of
the register is FLASH_STATUS.
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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During init the core checks if the wm5102 has finished starting by reading
register 0x19 and looking at the value. This read always fails since this
is not a readable register, mark it as being one. While we're at it provide
a constant for the register name (as supplied by Charles Keepax).
Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Calling strncpy with a maximum size argument of 32 bytes on destination
array kim_gdata->dev_name of size 32 bytes might leave the destination
string unterminated.
Cc: gregkh@linuxfoundation.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Pull power supply and reset updates from Sebastian Reichel:
- Initial support for the following chips
* max77836 (charger)
* max14577 (charger)
* bq27742 (battery gauge)
* ltc2952 (poweroff)
* stih416 (restart)
* syscon-reboot (restart)
* gpio-restart (restart)
- cleanup of power supply core
- misc fixes in power supply and reset drivers
* tag 'for-v3.18' of git://git.infradead.org/battery-2.6: (48 commits)
power: ab8500_fg: Fix build warning
Documentation: charger: max14577: Update the date of introducing ABI
power: reset: corrections for simple syscon reboot driver
Documentation: power: reset: Add documentation for generic SYSCON reboot driver
power: reset: Add generic SYSCON register mapped reset
bq27x00_battery: Fix flag reading for bq27742
power: reset: use restart_notifier mechanism for msm-poweroff
power: Add simple gpio-restart driver
power: reset: st: Provide DT bindings for ST's Power Reset driver
power: reset: Add restart functionality for STiH41x platforms
power: charger-manager: Fix NULL pointer exception with missing cm-fuel-gauge
power: max14577: Fix circular config SYSFS dependency
power: gpio-charger: do not use gpio value directly
power: max8925: Use of_get_child_by_name
power: max8925: Fix NULL ptr dereference on memory allocation failure
bq27x00_battery: Add support to bq27742
Documentation: charger: max14577: Document exported sysfs entry
devicetree: mfd: max14577: Add device tree bindings document
power: max17040: Add ID for MAX77836 Fuel Gauge block
charger: max14577: Configure battery-dependent settings from DTS and sysfs
...
Conflicts:
drivers/power/reset/Kconfig
drivers/power/reset/Makefile
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Immutable branch with restart handler patches for v3.18
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Immutable branch between MFD, Power, Charger and Regulator for v3.18
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Remove hard-coded values for:
- Fast Charge current,
- End Of Charge current,
- Fast Charge timer,
- Overvoltage Protection Threshold,
- Battery Constant Voltage,
and use DTS or sysfs to configure them. This allows using the max14577 charger
driver with different batteries.
Now the charger driver requires valid configuration data from DTS. In
case of wrong configuration data it fails during probe.
The fast charge timer is configured through sysfs entry.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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This patch prepares for changing the max14577 charger driver to allow
configuring battery-dependent settings from DTS.
The patch moves from regulator driver to MFD core driver and exports:
- function for calculating register value for charger's current;
- table of limits for chargers (MAX14577, MAX77836).
Previously they were used only by the max14577 regulator driver. In next
patch the charger driver will use them as well. Exporting them will
reduce unnecessary code duplication.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Mark Brown <broonie@linaro.org>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Prepare for adding support for MAX77836 charger to the max14577 charger
driver by adding necessary new defines and prefixes to existing ones.
The MAX77836 uses slightly different values for ChgTyp field of STATUS2
register. On the MAX14577 value of 0x6 is reserved and 0x7 dead battery.
On the MAX77836 the opposite:
- 0x6 means special charger,
- 0x7 is reserved.
Regardless of these differences use one common enum
max14577_muic_charger_type.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
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power_supply.h requires to forward declare few structures. One of them is done
at the top of the file and other one just before it is used. Declare them
together for better readability.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Usually PMIC's come with coulomb counting mechanism which can be
used to implement a Fuel Gauginig solution in Software itself.
One of key input to these SW Fuel Gauge solutioons is the boot up
parameters like boot voltage and boot current.
This patch adds the VOLTAGE_BOOT and CURRENT_BOOT power supply attributes
to report bootup voltage and current.
This patch also adds CALIBRATE power supply attribute which useful is
for calibrating the battery/coulomb counter.
Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull Ceph updates from Sage Weil:
"There is the long-awaited discard support for RBD (Guangliang Zhao,
Josh Durgin), a pile of RBD bug fixes that didn't belong in late -rc's
(Ilya Dryomov, Li RongQing), a pile of fs/ceph bug fixes and
performance and debugging improvements (Yan, Zheng, John Spray), and a
smattering of cleanups (Chao Yu, Fabian Frederick, Joe Perches)"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (40 commits)
ceph: fix divide-by-zero in __validate_layout()
rbd: rbd workqueues need a resque worker
libceph: ceph-msgr workqueue needs a resque worker
ceph: fix bool assignments
libceph: separate multiple ops with commas in debugfs output
libceph: sync osd op definitions in rados.h
libceph: remove redundant declaration
ceph: additional debugfs output
ceph: export ceph_session_state_name function
ceph: include the initial ACL in create/mkdir/mknod MDS requests
ceph: use pagelist to present MDS request data
libceph: reference counting pagelist
ceph: fix llistxattr on symlink
ceph: send client metadata to MDS
ceph: remove redundant code for max file size verification
ceph: remove redundant io_iter_advance()
ceph: move ceph_find_inode() outside the s_mutex
ceph: request xattrs if xattr_version is zero
rbd: set the remaining discard properties to enable support
rbd: use helpers to handle discard for layered images correctly
...
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Bring in missing osd ops and strings, use macros to eliminate multiple
points of maintenance.
Signed-off-by: Ilya Dryomov <idryomov@redhat.com>
Reviewed-by: Sage Weil <sage@redhat.com>
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ceph_release_page_vector was defined twice in libceph.h
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Ilya Dryomov <idryomov@redhat.com>
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this allow pagelist to present data that may be sent multiple times.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Reviewed-by: Sage Weil <sage@redhat.com>
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Pull drm updates from Dave Airlie:
"This is the main git pull for the drm,
I pretty much froze major pulls at -rc5/6 time, and haven't had much
fallout, so will probably continue doing that.
Lots of changes all over, big internal header cleanup to make it clear
drm features are legacy things and what are things that modern KMS
drivers should be using. Also big move to use the new generic fences
in all the TTM drivers.
core:
atomic prep work,
vblank rework changes, allows immediate vblank disables
major header reworking and cleanups to better delinate legacy
interfaces from what KMS drivers should be using.
cursor planes locking fixes
ttm:
move to generic fences (affects all TTM drivers)
ppc64 caching fixes
radeon:
userptr support,
uvd for old asics,
reset rework for fence changes
better buffer placement changes,
dpm feature enablement
hdmi audio support fixes
intel:
Cherryview work,
180 degree rotation,
skylake prep work,
execlist command submission
full ppgtt prep work
cursor improvements
edid caching,
vdd handling improvements
nouveau:
fence reworking
kepler memory clock work
gt21x clock work
fan control improvements
hdmi infoframe fixes
DP audio
ast:
ppc64 fixes
caching fix
rcar:
rcar-du DT support
ipuv3:
prep work for capture support
msm:
LVDS support for mdp4, new panel, gpu refactoring
exynos:
exynos3250 SoC support, drop bad mmap interface,
mipi dsi changes, and component match support"
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (640 commits)
drm/mst: rework payload table allocation to conform better.
drm/ast: Fix HW cursor image
drm/radeon/kv: add uvd/vce info to dpm debugfs output
drm/radeon/ci: add uvd/vce info to dpm debugfs output
drm/radeon: export reservation_object from dmabuf to ttm
drm/radeon: cope with foreign fences inside the reservation object
drm/radeon: cope with foreign fences inside display
drm/core: use helper to check driver features
drm/radeon/cik: write gfx ucode version to ucode addr reg
drm/radeon/si: print full CS when we hit a packet 0
drm/radeon: remove unecessary includes
drm/radeon/combios: declare legacy_connector_convert as static
drm/radeon/atombios: declare connector convert tables as static
drm/radeon: drop btc_get_max_clock_from_voltage_dependency_table
drm/radeon/dpm: drop clk/voltage dependency filters for BTC
drm/radeon/dpm: drop clk/voltage dependency filters for CI
drm/radeon/dpm: drop clk/voltage dependency filters for SI
drm/radeon/dpm: drop clk/voltage dependency filters for NI
drm/radeon: disable audio when we disable hdmi (v2)
drm/radeon: split audio enable between eg and r600 (v2)
...
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Commit "drm/rcar-du: Use struct videomode in platform data" touches board code
in arch/arm/mach-shmobile. There is, to the best of my knowledge, no risk of
conflict for v3.18. Simon, are you fine with getting those changes merged
through Dave's tree (and could you confirm that no conflict should occur) ?
Simon acked the merge:
Acked-by: Simon Horman <horms+renesas@verge.net.au>
* 'drm/next/du' of git://linuxtv.org/pinchartl/fbdev:
drm/rcar-du: Add OF support
drm/rcar-du: Use struct videomode in platform data
video: Add DT bindings for the R-Car Display Unit
video: Add THC63LVDM83D DT bindings documentation
video: Add ADV7123 DT bindings documentation
video: Add DT binding documentation for VGA connector
devicetree: Add vendor prefix "thine" to vendor-prefixes.txt
devicetree: Add vendor prefix "mitsubishi" to vendor-prefixes.txt
drm/shmob: Update copyright notice
drm/rcar-du: Update copyright notice
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In preparation for DT support where panel timings will be described by a
DRM-agnostic video mode, replace the struct drm_mode_modeinfo instance
in the panel platform data with a struct videomode.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
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Merge second patch-bomb from Andrew Morton:
- a few hotfixes
- drivers/dma updates
- MAINTAINERS updates
- Quite a lot of lib/ updates
- checkpatch updates
- binfmt updates
- autofs4
- drivers/rtc/
- various small tweaks to less used filesystems
- ipc/ updates
- kernel/watchdog.c changes
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (135 commits)
mm: softdirty: enable write notifications on VMAs after VM_SOFTDIRTY cleared
kernel/param: consolidate __{start,stop}___param[] in <linux/moduleparam.h>
ia64: remove duplicate declarations of __per_cpu_start[] and __per_cpu_end[]
frv: remove unused declarations of __start___ex_table and __stop___ex_table
kvm: ensure hard lockup detection is disabled by default
kernel/watchdog.c: control hard lockup detection default
staging: rtl8192u: use %*pEn to escape buffer
staging: rtl8192e: use %*pEn to escape buffer
staging: wlan-ng: use %*pEhp to print SN
lib80211: remove unused print_ssid()
wireless: hostap: proc: print properly escaped SSID
wireless: ipw2x00: print SSID via %*pE
wireless: libertas: print esaped string via %*pE
lib/vsprintf: add %*pE[achnops] format specifier
lib / string_helpers: introduce string_escape_mem()
lib / string_helpers: refactoring the test suite
lib / string_helpers: move documentation to c-file
include/linux: remove strict_strto* definitions
arch/x86/mm/numa.c: fix boot failure when all nodes are hotpluggable
fs: check bh blocknr earlier when searching lru
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For VMAs that don't want write notifications, PTEs created for read faults
have their write bit set. If the read fault happens after VM_SOFTDIRTY is
cleared, then the PTE's softdirty bit will remain clear after subsequent
writes.
Here's a simple code snippet to demonstrate the bug:
char* m = mmap(NULL, getpagesize(), PROT_READ | PROT_WRITE,
MAP_ANONYMOUS | MAP_SHARED, -1, 0);
system("echo 4 > /proc/$PPID/clear_refs"); /* clear VM_SOFTDIRTY */
assert(*m == '\0'); /* new PTE allows write access */
assert(!soft_dirty(x));
*m = 'x'; /* should dirty the page */
assert(soft_dirty(x)); /* fails */
With this patch, write notifications are enabled when VM_SOFTDIRTY is
cleared. Furthermore, to avoid unnecessary faults, write notifications
are disabled when VM_SOFTDIRTY is set.
As a side effect of enabling and disabling write notifications with
care, this patch fixes a bug in mprotect where vm_page_prot bits set by
drivers were zapped on mprotect. An analogous bug was fixed in mmap by
commit c9d0bf241451 ("mm: uncached vma support with writenotify").
Signed-off-by: Peter Feiner <pfeiner@google.com>
Reported-by: Peter Feiner <pfeiner@google.com>
Suggested-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Jamie Liu <jamieliu@google.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Consolidate the various external const and non-const declarations of
__start___param[] and __stop___param in <linux/moduleparam.h>. This
requires making a few struct kernel_param pointers in kernel/params.c
const.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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In some cases we don't want hard lockup detection enabled by default.
An example is when running as a guest. Introduce
watchdog_enable_hardlockup_detector(bool)
allowing those cases to disable hard lockup detection. This must be
executed early by the boot processor from e.g. smp_prepare_boot_cpu, in
order to allow kernel command line arguments to override it, as well as
to avoid hard lockup detection being enabled before we've had a chance
to indicate that it's unwanted. In summary,
initial boot: default=enabled
smp_prepare_boot_cpu
watchdog_enable_hardlockup_detector(false): default=disabled
cmdline has 'nmi_watchdog=1': default=enabled
The running kernel still has the ability to enable/disable at any time
with /proc/sys/kernel/nmi_watchdog us usual. However even when the
default has been overridden /proc/sys/kernel/nmi_watchdog will initially
show '1'. To truly turn it on one must disable/enable it, i.e.
echo 0 > /proc/sys/kernel/nmi_watchdog
echo 1 > /proc/sys/kernel/nmi_watchdog
This patch will be immediately useful for KVM with the next patch of this
series. Other hypervisor guest types may find it useful as well.
[akpm@linux-foundation.org: fix build]
[dzickus@redhat.com: fix compile issues on sparc]
Signed-off-by: Ulrich Obergfell <uobergfe@redhat.com>
Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Don Zickus <dzickus@redhat.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This is almost the opposite function to string_unescape(). Nevertheless
it handles \0 and could be used for any byte buffer.
The documentation is supplied together with the function prototype.
The test cases covers most of the scenarios and would be expanded later
on.
[akpm@linux-foundation.org: avoid 1k stack consumption]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: "John W . Linville" <linville@tuxdriver.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Joe Perches <joe@perches.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The introduced function string_escape_mem() is a kind of opposite to
string_unescape. We have several users of such functionality each of
them created custom implementation. The series contains clean up of
test suite, adding new call, and switching few users to use it via %*pE
specifier.
Test suite covers all of existing and most of potential use cases.
This patch (of 11):
The documentation of API belongs to c-file. This patch moves it
accordingly.
There is no functional change.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: "John W . Linville" <linville@tuxdriver.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Remove obsolete and unused strict_strto* functions
Signed-off-by: Daniel Walter <dwalter@google.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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