kernel/Documentation/devicetree/bindings/mfd, branch linux-5.1.y

Merge tag 'mfd-next-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

2019-03-08T18:02:58Z

Pull MFD updates from Lee Jones: "New Drivers: - Add STMPE ADC Input driver - Add STMicroelectronics STPMIC1 Parent driver - Add STMicroelectronics STPMIC1 OnKey Misc driver - Add STMicroelectronics STPMIC1 Watchdog driver - Add Cirrus Logic Lochnagar Parent driver - Add TQ-Systems TQMX86 Parent driver New Device Support: - Add support for ADC to STMPE New (or moved) Functionality: - Move Lightbar functionality to its own driver; cros_ec_lightbar - Move VBC functionality to its own driver; cros_ec_vbc - Move VBC functionality to its own driver; cros_ec_vbc - Move DebugFS functionality to its own driver; cros_ec_debugfs - Move SYSFS functionality to its own driver; cros_ec_sysfs - Add support for input voltage options; tps65218 Fixes: - Use devm_* managed resources; cros_ec - Device Tree documentation; stmpe, aspeed-lpc, lochnagar - Trivial Clean-ups; stmpe - Rip out broken modular code; aat2870-core, adp5520, as3711, db8500-prcmu, htc-i2cpld, max8925-core, rc5t583, sta2x11-mfd, syscon, tps65090, tps65910, tps68470 tps80031, wm831x-spi, wm831x-i2c, wm831x-core, wm8350-i2c, wm8350-core, wm8400-core - Kconfig fixups; INTEL_SOC_PMIC - Improve error path; sm501, sec-core - Use struct_size() helper; sm501 - Constify; at91-usart - Use pointers instead of copying data; at91-usart - Deliver proper return value; cros_ec_dev - Trivial formatting/whitespace; sec-core" * tag 'mfd-next-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (53 commits) mfd: mxs-lradc: Mark expected switch fall-through mfd: sec-core: Cleanup formatting to a consistent style mfd: tqmx86: IO controller with I2C, Wachdog and GPIO mfd: intel-lpss: Move linux/pm.h to the local header mfd: cros_ec_dev: Return number of bytes read with CROS_EC_DEV_IOCRDMEM mfd: tps68470: Drop unused MODULE_DEVICE_TABLE mfd: at91-usart: No need to copy mfd_cell in probe mfd: at91-usart: Constify at91_usart_spi_subdev and at91_usart_serial_subdev mfd: lochnagar: Add support for the Cirrus Logic Lochnagar mfd: lochnagar: Add initial binding documentation dt-bindings: mfd: aspeed-lpc: Make parameter optional mfd: sec-core: Return gracefully instead of BUG() if device cannot match mfd: sm501: Use struct_size() in devm_kzalloc() mfd: sm501: Fix potential NULL pointer dereference mfd: Kconfig: Fix I2C_DESIGNWARE_PLATFORM dependencies mfd: tps65218.c: Add input voltage options mfd: wm8400-core: Make it explicitly non-modular mfd: wm8350-core: Drop unused module infrastructure from non-modular code mfd: wm8350-i2c: Make it explicitly non-modular mfd: wm831x-core: Drop unused module infrastructure from non-modular code ...

devicetree: bindings: bd718x7: document HW state related ROHM specific properties

2019-02-14T15:10:40Z

Add ROHM BD71837 / BD71847 specific device tree bindings for controlling the PMIC shutdown/reset states and voltages for different HW states. The PMIC was designed to be used with NXP i.MX8 SoC and it supports SNVS low power state which seems to be typical for NXP i.MX SoCs. However, when SNVS is used we must not allow SW to control enabling/disabling those regulators which are crucial for system to boot as there is a HW limitation which causes SW controlled regulators to be kept shut down after SNVS reset. Allow setting the SNVS to be used as reset target state and allow marking those regulators which are critical for boot. Signed-off-by: Matti Vaittinen Tested-by: Angus Ainslie Reviewed-by: Angus Ainslie Signed-off-by: Mark Brown

mfd: lochnagar: Add initial binding documentation

2019-02-07T10:43:55Z

Lochnagar is an evaluation and development board for Cirrus Logic Smart CODEC and Amp devices. It allows the connection of most Cirrus Logic devices on mini-cards, as well as allowing connection of various application processor systems to provide a full evaluation platform. This driver supports the board controller chip on the Lochnagar board. Signed-off-by: Charles Keepax Signed-off-by: Lee Jones

dt-bindings: mfd: aspeed-lpc: Make parameter optional

2019-02-07T10:43:23Z

Memory-region and flash phandle is not a required parameter, it is optional to describe in device tree and needed only use basis. Signed-off-by: Vijay Khemka Signed-off-by: Lee Jones

Merge branches 'ib-mfd-iio-input-5.1', 'ib-mfd-input-watchdog-5.1' and 'ib-mfd-platform-5.1' into ibs-for-mfd-merged

2019-02-01T08:20:04Z

dt-bindings: mfd: Document STPMIC1

2019-01-16T13:59:12Z

STPMIC1 is a PMIC from STMicroelectronics. The STPMIC1 integrates 10 regulators, 3 power switches, a watchdog and an input for a power on key. Signed-off-by: Pascal Paillet Reviewed-by: Rob Herring Signed-off-by: Lee Jones

iio: adc: add STMPE ADC devicetree bindings

2019-01-16T12:37:36Z

This adds the devicetree bindings for the STMPE ADC. This also corrects a typo in st,sample-time it is rather "6 -> 124 clocks" according to the datasheet and not 144. We need to use the naming stmpe_adc in devicetree because this is given by the mfd device. Signed-off-by: Stefan Agner Signed-off-by: Max Krummenacher Signed-off-by: Philippe Schenker Reviewed-by: Jonathan Cameron Reviewed-by: Rob Herring Signed-off-by: Lee Jones

dt-bindings: stmpe: Reformatting parameter list and use tabs only

2019-01-16T12:34:58Z

This patch reformats the parameter list for stmpe device in a table-style so it is more clear to read. Signed-off-by: Philippe Schenker Reviewed-by: Rob Herring Signed-off-by: Lee Jones

dt-bindings: mfd: axp20x: Add software based soft_start for AXP209 LDO3

2018-12-13T16:39:56Z

In the past, there have been words on various lists that if LDO3 is disabled in u-boot, but enabled in the DTS, the axp209 driver would fail to continue/hang. Several enable/disable patches have been issues to devicetree's in both the kernel and u-boot to address this issue. What really happened however, was that the AXP209 shuts down without a notice and without setting an interrupt. This is caused when LDO3 gets overloaded, for example with large capacitors on the LDO3 output. Normally, we would expect that AXP209 would source 200 mA as per datasheet and set and trigger an interrupt when being overloaded. For some reason however, this does not happen. As a work-around, implement software-based 'regulator-soft-start' property for AXP209 LDO3 regulator, which is used to first bring up the LDO3 to the lowest possible voltage and then enable the LDO. After that, we can set the requested voltage as usual. Combining this setting with the regulator-ramp-delay allows LDO3 to come up slowly and staggered, potentially reducing overall inrush current. Signed-off-by: Olliver Schinagl Signed-off-by: Priit Laes Signed-off-by: Mark Brown

dt-bindings: mfd: axp20x: add support for regulator-ramp-delay for AXP209

2018-12-13T16:39:54Z

The AXP209 supports ramping up voltages on several regulators such as DCDC2 and LDO3, therefore we can use the standard 'regulator-ramp-delay' property for those 2 regulators. Note that the voltage ramp only works when the regulator is already enabled. E.g. when going from say 0.7 V to 3.6 V. When turning on the regulator, no voltage ramp is performed in hardware. What this means, is that if the bootloader brings up the voltage at 0.7 V, the ramp delay property is properly applied. If however, the bootloader leaves the power off, no ramp delay is applied when the power is enabled by the regulator framework. Signed-off-by: Olliver Schinagl Signed-off-by: Priit Laes Acked-for-MFD-by: Lee Jones Signed-off-by: Mark Brown