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Автор SHA1 Сообщение Дата
Sinan Kaya 9baddb61df mfd: Fix unmet dependency warning for MFD_TPS68470
After commit 5d32a66541 ("PCI/ACPI: Allow ACPI to be built without
CONFIG_PCI set") dependencies on CONFIG_PCI that previously were
satisfied implicitly through dependencies on CONFIG_ACPI have to be
specified directly.

WARNING: unmet direct dependencies detected for I2C_DESIGNWARE_PLATFORM
  Depends on [n]: I2C [=y] && HAS_IOMEM [=y] && (ACPI [=y] && COMMON_CLK [=n] || !ACPI [=y])
  Selected by [y]:
  - MFD_TPS68470 [=y] && HAS_IOMEM [=y] && ACPI [=y] && I2C [=y]=y

MFD_TPS68470 is an ACPI only device and selects I2C_DESIGNWARE_PLATFORM.

I2C_DESIGNWARE_PLATFORM does not have any configuration today for ACPI
support without CONFIG_PCI set.

For sake of a quick fix this introduces a new mandatory dependency to
the driver which may survive without it. Otherwise we need to revisit
the driver architecture to address this properly.

Fixes: 5d32a66541 ("PCI/ACPI: Allow ACPI to be built without CONFIG_PCI set")
Signed-off-by: Sinan Kaya <okaya@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-01-29 10:55:34 +01:00
Linus Torvalds 9deb9e1637 - New Device Support
- Add support for Power Supply to AXP813
    - Add support for GPIO, ADC, AC and Battery Power Supply to AXP803
    - Add support for UART to Exynos LPASS
 
  - Fix-ups
    - Use supplied MACROS; ti_am335x_tscadc
    - Trivial spelling/whitespace/alignment; tmio, axp20x, rave-sp
    - Regmap changes; bd9571mwv, wm5110-tables
    - Kconfig dependencies; MFD_AT91_USART
    - Supply shared data for child-devices; madera-core
    - Use new of_node_name_eq() API call; max77620, stmpe
    - Use managed resources (devm_*); tps65218
    - Comment descriptions; ingenic-tcu
    - Coding style; madera-core
 
  - Bug Fixes
    - Fix section mismatches; twl-core, db8500-prcmu
    - Correct error path related issues; mt6397-core, ab8500-core, mc13xxx-core
    - IRQ related fixes; tps6586x
    - Ensure proper initialisation sequence; qcom_rpm
    - Repair potential memory leak; cros_ec_dev
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Merge tag 'mfd-next-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "New Device Support
   - Add support for Power Supply to AXP813
   - Add support for GPIO, ADC, AC and Battery Power Supply to AXP803
   - Add support for UART to Exynos LPASS

  Fix-ups:
   - Use supplied MACROS; ti_am335x_tscadc
   - Trivial spelling/whitespace/alignment; tmio, axp20x, rave-sp
   - Regmap changes; bd9571mwv, wm5110-tables
   - Kconfig dependencies; MFD_AT91_USART
   - Supply shared data for child-devices; madera-core
   - Use new of_node_name_eq() API call; max77620, stmpe
   - Use managed resources (devm_*); tps65218
   - Comment descriptions; ingenic-tcu
   - Coding style; madera-core

  Bug Fixes:
   - Fix section mismatches; twl-core, db8500-prcmu
   - Correct error path related issues; mt6397-core, ab8500-core, mc13xxx-core
   - IRQ related fixes; tps6586x
   - Ensure proper initialisation sequence; qcom_rpm
   - Repair potential memory leak; cros_ec_dev"

* tag 'mfd-next-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (25 commits)
  mfd: exynos-lpass: Enable UART module support
  mfd: mc13xxx: Fix a missing check of a register-read failure
  mfd: cros_ec: Add commands to control codec
  mfd: madera: Remove spurious semicolon in while loop
  mfd: rave-sp: Fix typo in rave_sp_checksum comment
  mfd: ingenic-tcu: Fix bit field description in header
  mfd: tps65218: Use devm_regmap_add_irq_chip and clean up error path in probe()
  mfd: Use of_node_name_eq() for node name comparisons
  mfd: cros_ec_dev: Add missing mfd_remove_devices() call in remove
  mfd: axp20x: Add supported cells for AXP803
  mfd: axp20x: Re-align MFD cell entries
  mfd: axp20x: Add AC power supply cell for AXP813
  mfd: wm5110: Add missing ASRC rate register
  mfd: qcom_rpm: write fw_version to CTRL_REG
  mfd: tps6586x: Handle interrupts on suspend
  mfd: madera: Add shared data for accessory detection
  mfd: at91-usart: Add platform dependency
  mfd: bd9571mwv: Add volatile register to make DVFS work
  mfd: ab8500-core: Return zero in get_register_interruptible()
  mfd: tmio: Typo s/use use/use/
  ...
2019-01-15 06:24:36 +12:00
Beomho Seo 3f2d347e85 mfd: exynos-lpass: Enable UART module support
This patch enables proper interrupts routing between UART module
in Exynos Audio SubSystem and the rest of the SoC. This routing is
completely transparent for UART device and CPU/GIC. UART driver requests
interrupts from the respective controller and enables/masks/handles it
by itself via standard methods.

There are boards (for example TM2), which use UART module in Exynos Audio
SubStem for communication with BlueTooth chip.

Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
[mszyprow: rephrased commit message, added UART reset]
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-01-03 08:32:42 +00:00
Kangjie Lu 9e28989d41 mfd: mc13xxx: Fix a missing check of a register-read failure
When mc13xxx_reg_read() fails, "old_adc0" is uninitialized and will
contain random value. Further execution uses "old_adc0" even when
mc13xxx_reg_read() fails.
The fix checks the return value of mc13xxx_reg_read(), and exits
the execution when it fails.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-01-03 08:32:42 +00:00
Richard Fitzgerald 4bcb83e055 mfd: madera: Remove spurious semicolon in while loop
Coccinelle warning of a spurious semicolon on the closing brace
of a while loop.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-01-03 08:32:42 +00:00
Yangtao Li f7b1e49c67 mfd: rave-sp: Fix typo in rave_sp_checksum comment
Caculated -> Calculated

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-01-03 08:32:42 +00:00
Keerthy 75d4c5e03c mfd: tps65218: Use devm_regmap_add_irq_chip and clean up error path in probe()
Use devm_regmap_add_irq_chip and clean up error path in probe
and also the remove function.

Reported-by: Christian Hohnstaedt <Christian.Hohnstaedt@wago.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-01-03 08:32:42 +00:00
Rob Herring 38df91cc0b mfd: Use of_node_name_eq() for node name comparisons
Convert string compares of DT node names to use of_node_name_eq() helper
instead. This removes direct access to the node name pointer.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-01-03 08:32:42 +00:00
Enric Balletbo i Serra 18e294ddaf mfd: cros_ec_dev: Add missing mfd_remove_devices() call in remove
The driver adds different MFD child devices via mfd_add_devices() and
hence it is required to call mfd_remove_devices() to remove MFD child
devices.

Fixes: 5e0115581b ("cros_ec: Move cros_ec_dev module to drivers/mfd")
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-01-03 08:32:42 +00:00
Oskari Lemmela ea90e7b47f mfd: axp20x: Add supported cells for AXP803
Parts of the AXP803 are compatible with their counterparts on the AXP813.
These include the GPIO, ADC, AC and battery power supplies.

Signed-off-by: Oskari Lemmela <oskari@lemmela.net>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Tested-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-01-03 08:32:42 +00:00
Chen-Yu Tsai 753a8d083e mfd: axp20x: Re-align MFD cell entries
In the axp20x driver, the various mfd_cell lists had varying amounts
of indentation, sometimes even within the same list. For the axp288,
there's no alignment at all.

Re-align the right hand side of the assignments with the least amount
of tabs possible. Also collapse the closing bracket and the opening
bracket of the next entry onto the same line for the axp288, to be
consistent with all the other mfd_cell lists.

This patch is whitespace change only. No functionality is modified.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Oskari Lemmela <oskari@lemmela.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-01-03 08:32:42 +00:00
Oskari Lemmela 4a19f9a653 mfd: axp20x: Add AC power supply cell for AXP813
As axp20x-ac-power-supply now supports AXP813, add a cell for it.

Signed-off-by: Oskari Lemmela <oskari@lemmela.net>
Reviewed-by: Quentin Schulz <quentin.schulz@bootlin.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Tested-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-01-03 08:32:42 +00:00
Charles Keepax 04c801c18d mfd: wm5110: Add missing ASRC rate register
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-01-03 08:32:42 +00:00
Jonathan Marek 504e417582 mfd: qcom_rpm: write fw_version to CTRL_REG
This is required as part of the initialization sequence on certain SoCs.

If these registers are not initialized, the hardware can be unresponsive.
This fixes the driver on apq8060 (HP TouchPad device).

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-01-03 08:32:42 +00:00
Jonathan Hunter ac4ca4b9f4 mfd: tps6586x: Handle interrupts on suspend
The tps6586x driver creates an irqchip that is used by its various child
devices for managing interrupts. The tps6586x-rtc device is one of its
children that uses the tps6586x irqchip. When using the tps6586x-rtc as
a wake-up device from suspend, the following is seen:

 PM: Syncing filesystems ... done.
 Freezing user space processes ... (elapsed 0.001 seconds) done.
 OOM killer disabled.
 Freezing remaining freezable tasks ... (elapsed 0.000 seconds) done.
 Disabling non-boot CPUs ...
 Entering suspend state LP1
 Enabling non-boot CPUs ...
 CPU1 is up
 tps6586x 3-0034: failed to read interrupt status
 tps6586x 3-0034: failed to read interrupt status

The reason why the tps6586x interrupt status cannot be read is because
the tps6586x interrupt is not masked during suspend and when the
tps6586x-rtc interrupt occurs, to wake-up the device, the interrupt is
seen before the i2c controller has been resumed in order to read the
tps6586x interrupt status.

The tps6586x-rtc driver sets it's interrupt as a wake-up source during
suspend, which gets propagated to the parent tps6586x interrupt.
However, the tps6586x-rtc driver cannot disable it's interrupt during
suspend otherwise we would never be woken up and so the tps6586x must
disable it's interrupt instead.

Prevent the tps6586x interrupt handler from executing on exiting suspend
before the i2c controller has been resumed by disabling the tps6586x
interrupt on entering suspend and re-enabling it on resuming from
suspend.

Cc: stable@vger.kernel.org
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-01-03 08:32:42 +00:00
Richard Fitzgerald 7f9472134a mfd: madera: Add shared data for accessory detection
Add variables to struct madera that will be shared by the
extcon and audio codec drivers to synchronize output state
during accessory detection. Also add a mutex to protect
the DAPM pointer.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-01-03 08:32:42 +00:00
Jean Delvare 628f3dfe4c mfd: at91-usart: Add platform dependency
It doesn't make sense to present option MFD_AT91_USART by default if
not building an AT91 kernel, as the drivers which depend on it are
not available.

Fixes: 7d3aa342ce ("mfd: at91-usart: Add MFD driver for USART")
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-01-03 08:32:42 +00:00
Dien Pham b0aff01e7a mfd: bd9571mwv: Add volatile register to make DVFS work
Because BD9571MWV_DVFS_MONIVDAC is not defined in the volatile table,
the physical register value is not updated by regmap and DVFS doesn't
work as expected. Fix it!

Fixes: d3ea212720 ("mfd: Add ROHM BD9571MWV-M MFD PMIC driver")
Signed-off-by: Dien Pham <dien.pham.ry@renesas.com>
[wsa: rebase, add 'Fixes', reword commit message]
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-01-03 08:32:42 +00:00
Dan Carpenter 10628e3ecf mfd: ab8500-core: Return zero in get_register_interruptible()
This function is supposed to return zero on success or negative error
codes on error.  Unfortunately, there is a bug so it sometimes returns
non-zero, positive numbers on success.

I noticed this bug during review and I can't test it.  It does appear
that the return is sometimes propogated back to _regmap_read() where all
non-zero returns are treated as failure so this may affect run time.

Fixes: 47c1697508 ("mfd: Align ab8500 with the abx500 interface")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-01-03 08:32:42 +00:00
Nicolas Boichat a177276aa0 mfd: mt6397: Do not call irq_domain_remove if PMIC unsupported
If the PMIC ID is unknown, the current code would call
irq_domain_remove and panic, as pmic->irq_domain is only
initialized by mt6397_irq_init.

Return immediately with an error, if the chip ID is unsupported.

Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-01-03 08:32:42 +00:00
Nathan Chancellor a3888f62fe mfd: db8500-prcmu: Fix some section annotations
When building the kernel with Clang, the following section mismatch
warnings appear:

WARNING: vmlinux.o(.text+0x7239cc): Section mismatch in reference from
the function db8500_prcmu_probe() to the function
.init.text:init_prcm_registers()
The function db8500_prcmu_probe() references
the function __init init_prcm_registers().
This is often because db8500_prcmu_probe lacks a __init
annotation or the annotation of init_prcm_registers is wrong.

WARNING: vmlinux.o(.text+0x723e28): Section mismatch in reference from
the function db8500_prcmu_probe() to the function
.init.text:fw_project_name()
The function db8500_prcmu_probe() references
the function __init fw_project_name().
This is often because db8500_prcmu_probe lacks a __init
annotation or the annotation of fw_project_name is wrong.

db8500_prcmu_probe should not be marked as __init so remove the __init
annotation from fw_project_name and init_prcm_registers.

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-01-03 08:32:42 +00:00
Nathan Chancellor 8838555089 mfd: twl-core: Fix section annotations on {,un}protect_pm_master
When building the kernel with Clang, the following section mismatch
warning appears:

WARNING: vmlinux.o(.text+0x3d84a3b): Section mismatch in reference from
the function twl_probe() to the function
.init.text:unprotect_pm_master()
The function twl_probe() references
the function __init unprotect_pm_master().
This is often because twl_probe lacks a __init
annotation or the annotation of unprotect_pm_master is wrong.

Remove the __init annotation on the *protect_pm_master functions so
there is no more mismatch.

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-01-03 08:32:42 +00:00
Olliver Schinagl 82b4d99725
mfd: axp20x: use explicit bit defines
The AXP20X_OFF define is an actual specific bit, define it as such.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
Signed-off-by: Priit Laes <plaes@plaes.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-13 16:40:03 +00:00
Olliver Schinagl dcea4d5c0a
mfd: axp20x: Clean up included headers
Add the bitops.h header as we need it, alphabetize header order.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
Signed-off-by: Priit Laes <plaes@plaes.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-13 16:39:58 +00:00
Mark Brown e6202e8249
Merge branch 'for-linus' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-4.21 2018-12-11 20:44:49 +00:00
Enric Balletbo i Serra 48a2ca0ee3 Revert "mfd: cros_ec: Use devm_kzalloc for private data"
This reverts commit 3aa2177e47.

That commit triggered a new WARN when unloading the module (see at the
end of the commit message). When a class_dev is embedded in a structure
then that class_dev is the thing that controls the lifetime of that
structure, for that reason device managed allocations can't be used here.
See Documentation/kobject.txt.

Revert the above patch, so the struct is allocated using kzalloc and we
have a release function for it that frees the allocated memory, otherwise
it is broken.

 ------------[ cut here ]------------
 Device 'cros_ec' does not have a release() function, it is broken and must be fixed.
 WARNING: CPU: 3 PID: 3675 at drivers/base/core.c:895 device_release+0x80/0x90
 Modules linked in: btusb btrtl btintel btbcm bluetooth ...
 CPU: 3 PID: 3675 Comm: rmmod Not tainted 4.20.0-rc4 #76
 Hardware name: Google Kevin (DT)
 pstate: 40000005 (nZcv daif -PAN -UAO)
 pc : device_release+0x80/0x90
 lr : device_release+0x80/0x90
 sp : ffff00000c47bc70
 x29: ffff00000c47bc70 x28: ffff8000e86b0d40
 x27: 0000000000000000 x26: 0000000000000000
 x25: 0000000056000000 x24: 0000000000000015
 x23: ffff8000f0bbf860 x22: ffff000000d320a0
 x21: ffff8000ee93e100 x20: ffff8000ed931428
 x19: ffff8000ed931418 x18: 0000000000000020
 x17: 0000000000000000 x16: 0000000000000000
 x15: 0000000000000400 x14: 0000000000000143
 x13: 0000000000000000 x12: 0000000000000400
 x11: 0000000000000157 x10: 0000000000000960
 x9 : ffff00000c47b9b0 x8 : ffff8000e86b1700
 x7 : 0000000000000000 x6 : ffff8000f7d520b8
 x5 : ffff8000f7d520b8 x4 : 0000000000000000
 x3 : ffff8000f7d58e68 x2 : ffff8000e86b0d40
 x1 : 37d859939c964800 x0 : 0000000000000000
 Call trace:
  device_release+0x80/0x90
  kobject_put+0x74/0xe8
  device_unregister+0x20/0x30
  ec_device_remove+0x34/0x48 [cros_ec_dev]
  platform_drv_remove+0x28/0x48
  device_release_driver_internal+0x1a8/0x240
  driver_detach+0x40/0x80
  bus_remove_driver+0x54/0xa8
  driver_unregister+0x2c/0x58
  platform_driver_unregister+0x10/0x18
  cros_ec_dev_exit+0x1c/0x2d8 [cros_ec_dev]
  __arm64_sys_delete_module+0x16c/0x1f8
  el0_svc_common+0x84/0xd8
  el0_svc_handler+0x2c/0x80
  el0_svc+0x8/0xc
 ---[ end trace a57c4625f3c60ae8 ]---

Cc: stable@vger.kernel.org
Fixes: 3aa2177e47 ("mfd: cros_ec: Use devm_kzalloc for private data")
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Reviewed-by: Dmitry Torokhov <dtor@chromium.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-12-05 09:59:38 +00:00
Vignesh R b40ee006fe mfd: ti_am335x_tscadc: Use PLATFORM_DEVID_AUTO while registering mfd cells
Use PLATFORM_DEVID_AUTO to number mfd cells while registering, so that
different instances are uniquely identified. This is required in order
to support registering of multiple instances of same ti_am335x_tscadc IP.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-12-03 11:33:10 +00:00
Linus Walleij 1d2f46814d
regulator: wm8994: Pass descriptor instead of GPIO number
Instead of passing a global GPIO number for the enable GPIO, pass
a descriptor looked up from the device tree node or the board file
decriptor table for the regulator.

There is a single board file passing the GPIOs for LDO1 and LDO2
through platform data, so augment this to pass descriptors
associated with the i2c device as well.

The special GPIO enable DT property for the enable GPIO is
nonstandard but this was accomodated in
commit 6a537d4846
"gpio: of: Support regulator nonstandard GPIO properties".

Cc: patches@opensource.cirrus.com
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-15 11:42:08 -08:00
Linus Torvalds 5b7449810a chrome-platform for v4.20
* Move mfd/cros_ec_lpc* includes to drivers/platform from mfd
 * Adding a new interrupt path for cros_ec_lpc
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Merge tag 'tag-chrome-platform-for-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform

Pull chrome-platform updates from Benson Leung:

 - Move mfd/cros_ec_lpc* includes to drivers/platform from mfd

 - Adding a new interrupt path for cros_ec_lpc

* tag 'tag-chrome-platform-for-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform:
  platform/chrome: chromeos_tbmc - Remove unneeded const
  platform/chrome: Add a new interrupt path for cros_ec_lpc
  mfd: cros_ec: Fix and improve kerneldoc comments.
  platform/chrome: Move mfd/cros_ec_lpc* includes to drivers/platform.
2018-10-31 16:47:55 -07:00
Linus Torvalds 3ea172c84d - New Drivers
- Add support for USART SPI to AT91*
 
  - New Functionality
    - Add support for Audio CODECs to motorola-cpcap
 
  - Fix-ups
    - DT documentation fix-ups; atmel-usart
    - Staticise functions/structs; spi-at91-usart, arizona-core
    - Constify; ti-lmu
    - Fix memory leaks; menelaus
    - Change device 'wake-up' status; ti_am335x_tscadc, max8997
    - Power Management (suspend/resume) semantic changes; ti_am335x_adc, cros_ec, max8997
    - SPDX churn; sec-core (+ headers), max* (+ headers), intel* (+ headers),
    - Trivial (whitespace, email addresses, alphabetisise); Kconfig, adp5520, intel_soc_pmic_*
    - Build as module; sec-irq
    - Use new %pOFn printk format for device_node.name; max77620
    - Remove unused code; madera
    - Use generic MACROs; intel_msic, intel_soc_pmic_crc
    - Move to GPIOD; ti-lmu
    - Use managed resources; ti-lmu
 
  - Bug Fixes
    - Add missing headers; at91-usart
    - Prevent device from entering low-power mode; arizona-core
    - Poll for BOOT_DONE to avoid still-booting NACK; madera-core
    - Prevent ADC read from shutting down device; mc13xxx-core
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Merge tag 'mfd-next-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "New Drivers
   - Add support for USART SPI to AT91*

  New Functionality
   - Add support for Audio CODECs to motorola-cpcap

  Fix-ups
   - DT documentation fix-ups; atmel-usart
   - Staticise functions/structs; spi-at91-usart, arizona-core
   - Constify; ti-lmu
   - Fix memory leaks; menelaus
   - Change device 'wake-up' status; ti_am335x_tscadc, max8997
   - Power Management (suspend/resume) semantic changes; ti_am335x_adc, cros_ec, max8997
   - SPDX churn; sec-core (+ headers), max* (+ headers), intel* (+ headers),
   - Trivial (whitespace, email addresses, alphabetisise); Kconfig, adp5520, intel_soc_pmic_*
   - Build as module; sec-irq
   - Use new %pOFn printk format for device_node.name; max77620
   - Remove unused code; madera
   - Use generic MACROs; intel_msic, intel_soc_pmic_crc
   - Move to GPIOD; ti-lmu
   - Use managed resources; ti-lmu

  Bug Fixes
   - Add missing headers; at91-usart
   - Prevent device from entering low-power mode; arizona-core
   - Poll for BOOT_DONE to avoid still-booting NACK; madera-core
   - Prevent ADC read from shutting down device; mc13xxx-core"

* tag 'mfd-next-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (45 commits)
  mfd: cros_ec: Avoid unneeded internal declaration warning
  mfd: ti-lmu: Use of_device_get_match_data() helper
  mfd: ti-lmu: Use managed resource for everything
  mfd: ti-lmu: Switch to GPIOD
  mfd: ti-lmu: constify mfd_cell tables
  mfd: max8997: Disable interrupt handling for suspend/resume cycle
  mfd: max8997: Enale irq-wakeup unconditionally
  mfd: arizona: Make array mclk_name static, shrinks object size
  MAINTAINERS: Add myself as designated reviewer of Intel MFD PMIC
  mfd: Convert Intel PMIC drivers to use SPDX identifier 1;5201;0c Reduce size of duplicated comments by switching to use SPDX identifier.
  mfd: Sort headers alphabetically for Intel PMIC drivers
  mfd: intel_soc_pmic_bxtwc: Chain power button IRQs as well
  mfd: intel_soc_pmic_crc: Use REGMAP_IRQ_REG() macro
  mfd: intel_soc_pmic_crc: Use DEFINE_RES_IRQ_NAMED() macro
  mfd: intel_msic: Use DEFINE_RES_IRQ() macro
  mfd: motorola-cpcap: Add audio-codec support
  mfd: mc13xxx-core: Fix PMIC shutdown when reading ADC values
  mfd: madera: Remove unused forward reference
  mfd: max77620: Convert to using %pOFn instead of device_node.name
  mfd: madera: Don't use regmap_read_poll_timeout to poll for BOOT_DONE
  ...
2018-10-25 06:19:15 -07:00
Nathan Chancellor 6eb3578443 mfd: cros_ec: Avoid unneeded internal declaration warning
Clang warns:

drivers/mfd/cros_ec_dev.c:509:40: warning: variable 'cros_ec_id' is not
needed and will not be emitted [-Wunneeded-internal-declaration]
static const struct platform_device_id cros_ec_id[] = {
                                       ^
1 warning generated.

Avoid this warning by adding it to the cros_ec_dev_driver definition
under the id_table member like all other platform drivers.

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-10-23 08:58:34 +01:00
Pavel Machek 697894b9b8 mfd: ti-lmu: Use of_device_get_match_data() helper
Replace of_match_device() with of_device_get_match_data(), which
slightly decreases lines of code and allows to move the DT table
next to the I2C table.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-10-23 08:58:34 +01:00
Pavel Machek 7891d37509 mfd: ti-lmu: Use managed resource for everything
This replaces all remaining unmanaged resources with device
managed ones, so that the remove function is no longer needed.
This makes the code slightly shorter and fixes two problems:

 1. The hardware is disabled after the child devices have
    been removed. Previously there was a potential race
    condition.
 2. The hardware is disabled when mfd_add_devices fails
    during probe.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-10-23 08:58:34 +01:00
Pavel Machek 7a6a395b16 mfd: ti-lmu: Switch to GPIOD
Use new descriptor based API instead of the legacy one.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-10-23 08:58:34 +01:00
Sebastian Reichel 5b6850fa90 mfd: ti-lmu: constify mfd_cell tables
Add const attribute to all mfd_cell structures.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-10-23 08:58:34 +01:00
Marek Szyprowski c1aaaa1cb7 mfd: max8997: Disable interrupt handling for suspend/resume cycle
Disable IRQs during suspend/resume cycle to ensure handling of wakeup
interrupts (i.e. RTC wake alarm) after max8997_resume(). This way it can
be properly handled when I2C bus is finally available. This pattern is
also used in other MAX PMIC MFD drivers.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-10-23 08:58:34 +01:00
Marek Szyprowski efddff27c8 mfd: max8997: Enale irq-wakeup unconditionally
IRQ wake up support for MAX8997 driver was initially configured by
respective property in pdata. However, after the driver conversion to
device-tree, setting it was left as 'todo'. Nowadays most of other PMIC MFD
drivers initialized from device-tree assume that they can be an irq wakeup
source, so enable it also for MAX8997. This fixes support for wakeup from
MAX8997 RTC alarm.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-10-23 08:58:34 +01:00
Colin Ian King 8e27a5638a mfd: arizona: Make array mclk_name static, shrinks object size
Don't populate the array mclk_name on the stack but instead make it
static. Makes the object code smaller by 23 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
  38050	  11604	     64	  49718	   c236	linux/drivers/mfd/arizona-core.o

After:
   text	   data	    bss	    dec	    hex	filename
  38027	  11604	     64	  49695	   c21f	linux/drivers/mfd/arizona-core.o

(gcc version 8.2.0 x86_64)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-10-23 08:58:34 +01:00
Andy Shevchenko 26c7e05a69 mfd: Convert Intel PMIC drivers to use SPDX identifier
1;5201;0c
Reduce size of duplicated comments by switching to use SPDX identifier.

No functional change.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-10-23 08:58:34 +01:00
Andy Shevchenko 51eeee8e4e mfd: Sort headers alphabetically for Intel PMIC drivers
Sort headers alphabetically for better maintenance.

No functional change.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-10-23 08:58:34 +01:00
Andy Shevchenko 9f8ddee1da mfd: intel_soc_pmic_bxtwc: Chain power button IRQs as well
Power button IRQ actually has a second level of interrupts to
distinguish between UI and POWER buttons. Moreover, current
implementation looks awkward in approach to handle second level IRQs by
first level related IRQ chip.

To address above issues, split power button IRQ to be chained as well.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-10-23 08:58:34 +01:00
Andy Shevchenko 8bd2d03e54 mfd: intel_soc_pmic_crc: Use REGMAP_IRQ_REG() macro
Instead of open coding each data structure with regmap IRQresources,
use dedicated macro.

No functional change intended.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-10-23 08:58:34 +01:00
Andy Shevchenko 0ce8ea71fa mfd: intel_soc_pmic_crc: Use DEFINE_RES_IRQ_NAMED() macro
Instead of open coding each data structure with IRQ resources,
use dedicated macro.

No functional change intended.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-10-23 08:58:34 +01:00
Andy Shevchenko 95d617b4d6 mfd: intel_msic: Use DEFINE_RES_IRQ() macro
Instead of open coding each data structure with IRQ resources,
use dedicated macro.

In one case use DEFINE_RES_IRQ_NAMED() and DEFINE_RES_MEM_NAMED().

No functional change intended.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-10-23 08:58:34 +01:00
Sebastian Reichel 86f955d29f mfd: motorola-cpcap: Add audio-codec support
Add support for the audio-codec node by converting from
devm_of_platform_populate() to devm_mfd_add_devices().

Tested-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-10-23 08:58:34 +01:00
Fabio Estevam 55143439b7 mfd: mc13xxx-core: Fix PMIC shutdown when reading ADC values
When trying to read any MC13892 ADC channel on a imx51-babbage board:

The MC13892 PMIC shutdowns completely.

After debugging this issue and comparing the MC13892 and MC13783
initializations done in the vendor kernel, it was noticed that the
CHRGRAWDIV bit of the ADC0 register was not being set.

This bit is set by default after power on, but the driver was
clearing it.

After setting this bit it is possible to read the ADC values correctly.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Tested-by: Chris Healy <cphealy@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-10-23 08:58:34 +01:00
Rob Herring 75a11072c4 mfd: max77620: Convert to using %pOFn instead of device_node.name
In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-10-23 08:58:34 +01:00
Richard Fitzgerald b04e68d166 mfd: madera: Don't use regmap_read_poll_timeout to poll for BOOT_DONE
While polling for BOOT_DONE the chip could NAK a read because it is
still booting, which would terminate the regmap_read_poll_timeout()
with an error.

Instead implement a polling loop that ignores read errors so we
always poll until the chip signals boot or the loop times out.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-10-23 08:58:34 +01:00
Sapthagiri Baratam 6b269a41a4 mfd: arizona: Correct calling of runtime_put_sync
Don't call runtime_put_sync when clk32k_ref is ARIZONA_32KZ_MCLK2
as there is no corresponding runtime_get_sync call.

MCLK1 is not in the AoD power domain so if it is used as 32kHz clock
source we need to hold a runtime PM reference to keep the device from
going into low power mode.

Fixes: cdd8da8cc6 ("mfd: arizona: Add gating of external MCLKn clocks")
Signed-off-by: Sapthagiri Baratam <sapthagiri.baratam@cirrus.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-10-23 08:58:34 +01:00
RaviChandra Sadineni 61cc15dac0 mfd: cros_ec: Check for mkbp events on resume only if supported.
Currently on every resume we check for mkbp events and notify the
clients. This helps in identifying the wakeup sources. But on devices
that do not support mkbp protocol, we might end up querying key state of
the keyboard in a loop which blocks the resume. Instead check for events
only if mkbp is supported.

Signed-off-by: RaviChandra Sadineni <ravisadineni@chromium.org>
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-10-23 08:58:34 +01:00