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2021-04-14mfd: ntxec: Support for EC in Tolino Shine 2 HDAndreas Kemnade2-3/+54
Add the version of the EC in the Tolino Shine 2 HD to the supported versions. It seems not to have an RTC and does not ack data written to it. The vendor kernel happily ignores write errors, using I2C via userspace i2c-set also shows the error. So add a quirk to ignore that error. PWM can be successfully configured despite of that error. Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: stm32-timers: Avoid clearing auto reload registerFabrice Gasnier1-1/+6
The ARR register is cleared unconditionally upon probing, after the maximum value has been read. This initial condition is rather not intuitive, when considering the counter child driver. It rather expects the maximum value by default: - The counter interface shows a zero value by default for 'ceiling' attribute. - Enabling the counter without any prior configuration makes it doesn't count. The reset value of ARR register is the maximum. So Choice here is to backup it, and restore it then, instead of clearing its value. It also fixes the initial condition seen by the counter driver. Fixes: d0f949e220fd ("mfd: Add STM32 Timers driver") Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com> Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: intel_quark_i2c_gpio: Replace I²C speeds with descriptive definitionsAndy Shevchenko1-4/+5
I²C header provides a descriptive definitions for standard bus speeds. Use them instead of plain numbers. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: intel_quark_i2c_gpio: Remove unused struct device memberAndy Shevchenko1-2/+0
The device pointer in the custom structure is not used anywhere, remove it for good. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: intel_quark_i2c_gpio: Unregister resources in reversed orderAndy Shevchenko1-1/+1
In ->remove() unregister resources in reversed order, i.e. MFD devices first followed by I²C clock. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: Kconfig: ABX500_CORE should depend on ARCH_U8500Geert Uytterhoeven1-1/+2
The ST-Ericsson ABX500 Mixed Signal IC family chips are only present on ST-Ericsson U8500 Series platforms. Hence add a dependency on ARCH_U8500, to prevent asking the user about this driver when configuring a kernel without U8500 support. Also, merely enabling CONFIG_COMPILE_TEST should not enable additional code, and thus should not enable this driver by default. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: rn5t618: Do not cache various USB related registersAndreas Kemnade2-0/+4
These register get reset to their OTP defaults after USB plugging. And while at it, also add a missing register for detecting the charger type. Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: Make symbol 'atc260x_i2c_of_match' staticWei Yongjun1-1/+1
The sparse tool complains as follows: drivers/mfd/atc260x-i2c.c:45:27: warning: symbol 'atc260x_i2c_of_match' was not declared. Should it be static? This symbol is not used outside of atc260x-i2c.c, so this commit marks it static. Fixes: f7cb7fe34db9 ("mfd: Add MFD driver for ATC260x PMICs") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Reviewed-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: core: Remove support for dangling device propertiesHeikki Krogerus2-10/+0
From now on only accepting complete software nodes. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: intel-lpss: Switch to use the software nodesHeikki Krogerus4-15/+51
Software node was always created for the device if it was supplied with additional device properties, so those nodes might as well be constant. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: intel-lpss: Constify device property structuresAndy Shevchenko3-10/+10
There is no point to have non-constant device properties in this driver. Thus, constify them for good. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: core: Add support for software nodesHeikki Krogerus2-0/+13
The old device property API is going to be removed and replaced with the newer software node API. This prepares MFD subsystem for the transition. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: da9063: Support SMBus and I2C modeHubert Streidl2-0/+13
By default the PMIC DA9063 2-wire interface is SMBus compliant. This means the PMIC will automatically reset the interface when the clock signal ceases for more than the SMBus timeout of 35 ms. If the I2C driver / device is not capable of creating atomic I2C transactions, a context change can cause a ceasing of the clock signal. This can happen if for example a real-time thread is scheduled. Then the DA9063 in SMBus mode will reset the 2-wire interface. Subsequently a write message could end up in the wrong register. This could cause unpredictable system behavior. The DA9063 PMIC also supports an I2C compliant mode for the 2-wire interface. This mode does not reset the interface when the clock signal ceases. Thus the problem depicted above does not occur. This patch tests for the bus functionality "I2C_FUNC_I2C". It can reasonably be assumed that the bus cannot obey SMBus timings if this functionality is set. SMBus commands most probably are emulated in this case which is prone to the latency issue described above. This patch enables the I2C bus mode if I2C_FUNC_I2C is set or otherwise keeps the default SMBus mode. Signed-off-by: Hubert Streidl <hubert.streidl@de.bosch.com> Signed-off-by: Mark Jonas <mark.jonas@de.bosch.com> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: sec: Initialize driver via module_platform_driver()Krzysztof Kozlowski1-13/+1
The driver was using subsys_initcall() because in old times deferred probe was not supported everywhere and specific ordering was needed. Since probe deferral works fine and specific ordering is discouraged (hides dependencies between drivers and couples their boot order), the driver can be converted to regular module_platform_driver. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14MAINTAINERS: Move Milo Kim to creditsKrzysztof Kozlowski2-23/+3
Milo Kim's email in TI bounces with permanent error (550: Invalid recipient). Last email from him on LKML was in 2017. Move Milo Kim to credits and remove the separate driver entries for: - TI LP855x backlight driver, - TI LP8727 charger driver, - TI LP8788 MFD (ADC, LEDs, charger and regulator) drivers. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Sebastian Reichel <sre@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14MAINTAINERS: Add entry for Intel MAX 10 mfd driverXu Yilun1-0/+10
This patch adds maintainer info for Intel MAX 10 mfd driver. Signed-off-by: Xu Yilun <yilun.xu@intel.com> Reviewed-by: Tom Rix <trix@redhat.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: intel-m10-bmc: Add access table configuration to the regmapMatthew Gerlach2-1/+17
This patch adds access tables to the MAX 10 BMC regmap. This prevents the host from accessing the unwanted I/O space. It also filters out the invalid outputs when reading the regmap debugfs interface. Signed-off-by: Matthew Gerlach <matthew.gerlach@linux.intel.com> Signed-off-by: Xu Yilun <yilun.xu@intel.com> Reviewed-by: Tom Rix <trix@redhat.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: intel-m10-bmc: Simplify the legacy version reg definitionXu Yilun2-11/+8
The version register is the only one in the legacy I/O space to be accessed, so it is not necessary to define the legacy base & version register offset. A direct definition of the legacy version register address would be fine. Signed-off-by: Xu Yilun <yilun.xu@intel.com> Reviewed-by: Tom Rix <trix@redhat.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: intel-m10-bmc: Fix the register access rangeXu Yilun1-1/+1
This patch fixes the max register address of MAX 10 BMC. The range 0x20000000 ~ 0x200000fc are for control registers of the QSPI flash controller, which are not accessible to host. Signed-off-by: Xu Yilun <yilun.xu@intel.com> Reviewed-by: Tom Rix <trix@redhat.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: lm3533: Switch to using the new API kobj_to_dev()Yang Li1-1/+1
Fixes the following coccicheck warning: drivers/mfd/lm3533-core.c:361:60-61: WARNING opportunity for kobj_to_dev() Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14dt-bindings: mfd: lp875xx: Add optional reset GPIOLuca Ceresoli3-0/+12
Document the LP8756x-Q1 and LP87524-Q1 ICs reset pin. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14MAINTAINERS: Add entry for Intel MAX 10 mfd driverXu Yilun1-0/+10
This patch adds maintainer info for Intel MAX 10 mfd driver. Signed-off-by: Xu Yilun <yilun.xu@intel.com> Reviewed-by: Tom Rix <trix@redhat.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: ene-kb3930: Make local symbol 'kb3930_power_off' staticWei Yongjun1-1/+1
The sparse tool complains as follows: drivers/mfd/ene-kb3930.c:36:15: warning: symbol 'kb3930_power_off' was not declared. Should it be static? The symbol is not used outside of this file. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Acked-by: Lubomir Rintel <lkundrak@v3.sk> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: Remove support for AB3100Arnd Bergmann5-1324/+1
The ST-Ericsson U300 platform has been removed, so this driver is no longer needed. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: ab8500: Drop bm disable parameterLinus Walleij1-14/+6
Nobody is passing the module parameter to disable the battery management portions so just drop this parameter. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: stmpe: Revert "Constify static struct resource"Rikard Falkeborn1-5/+9
In stmpe_devices_init(), the start and end field of these structs are modified, so they can not be const. Add a comment to those structs that lacked it to reduce the risk that this happens again. This reverts commit 8d7b3a6dac4eae22c58b0853696cbd256966741b. Fixes: 8d7b3a6dac4e ("mfd: stmpe: Constify static struct resource") Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: lp87565: Remove unused define 'LP87565_NUM_BUCK'Luca Ceresoli1-3/+0
This define appears incorrect, but it is completely unused so it can be removed. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: arizona: Make some symbols staticWei Yongjun1-2/+2
The sparse tool complains as follows: drivers/mfd/arizona-spi.c:28:31: warning: symbol 'reset_gpios' was not declared. Should it be static? drivers/mfd/arizona-spi.c:29:31: warning: symbol 'ldoena_gpios' was not declared. Should it be static? Those symbols are not used outside of arizona-spi.c, so this commit marks them static. Fixes: e933836744a2 ("mfd: arizona: Add support for ACPI enumeration of WM5102 connected over SPI") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: dbx500-prcmu: Use true and false for bool variableJiapeng Chong1-1/+1
Fix the following coccicheck warning: ./include/linux/mfd/db8500-prcmu.h:723:8-9: WARNING: return of 0/1 in function 'db8500_prcmu_is_ac_wake_requested' with return type bool. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14dt-bindings: mfd: ricoh,rn5t618: Trivial: Fix spelling mistake of 'additionally'Lee Jones1-1/+1
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14dt-bindings: mfd: Convert rn5t618 to json-schemaAndreas Kemnade2-52/+111
Convert the RN5T618 binding to DT schema format. Also clearly state which regulators are available. Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14MAINTAINERS: Add ROHM BD71815AGWMatti Vaittinen1-0/+3
Add maintainer entries for ROHM BD71815AGW drivers. New regulator and GPIO drivers were introduced for these PMICs. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14rtc: bd70528: Support RTC on ROHM BD71815Matti Vaittinen2-11/+40
BD71815 contains similar RTC block as BD71828. Only the address offsets seem different. Support also BD71815 RTC using rtc-bd70528. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14clk: bd718x7: Add support for clk gate on ROHM BD71815 PMICMatti Vaittinen1-1/+8
ROHM BD71815 also provide clk signal for RTC. Add control for gating this clock. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14regulator: Support ROHM BD71815 regulatorsMatti Vaittinen3-0/+664
Support voltage control for regulators on ROHM BD71815 PMIC. ROHM BD71815 contains 5 bucks, 7 LDOs and a boost (intended for LED). Bucks 1 and 2 support HW state based voltage level and enable states. Other regulators support HW state based enable states. All bucks and LDOs 1-5 allow voltage changes for RUN state and LDO4 can be enabled/disabled via GPIO. LDO3 does support changing between two predetermined voltages by using a GPIO but this functionality is not included in this commit. This work is derived from driver originally written by Tony Luo <luofc@embedinfo.com> - although not much of original work is left. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14regulator: bd718x7, bd71828: Use ramp-delay helperMatti Vaittinen2-66/+45
Use generic regamp ramp-delay helper function instead of implementing own. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14regulator: rohm-regulator: Support SNVS HW state.Matti Vaittinen2-1/+11
The ROHM BD71815 supports setting voltage levels/regulator status for HW-states "RUN", "SUSPEND", "LPSR" and "SNVS". Add DT parsing helper also for SNVS state. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14regulator: rohm-regulator: linear voltage supportMatti Vaittinen1-2/+15
The helper for obtaining HW-state based DVS voltage levels currently only works for regulators using linear-ranges. Extend support to regulators with simple linear mappings and add also proper error path if pickable-ranges regulators call this. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14gpio: Support ROHM BD71815 GPOsMatti Vaittinen3-0/+196
Support GPO(s) found from ROHM BD71815 power management IC. The IC has two GPO pins but only one is properly documented in the data-sheet. The driver exposes by default only the documented GPO. The second GPO is connected to E5 pin and is marked as GND in the data-sheet. Control for this undocumented pin can be enabled using a special DT property. This driver is derived from work by Peter Yang <yanglsh@embest-tech.com> although not so much of the original is left. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Acked-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: Support for ROHM BD71815 PMIC coreMatti Vaittinen4-133/+933
Add core support for ROHM BD71815 Power Management IC. The IC integrates regulators, a battery charger with a coulomb counter, a real-time clock (RTC), clock gate and general-purpose outputs (GPO). Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: Sort ROHM chip ID list for better readabilityMatti Vaittinen1-4/+4
Sort the ID list so it is easier to see which ICs are present. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Suggested-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-04-14mfd: Add ROHM BD71815 IDMatti Vaittinen1-0/+1
Add chip ID for ROHM BD71815 and PMIC so that drivers can identify this IC. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>