- 08 Mar, 2022 5 commits
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Lukas Bulwahn authored
The config DBX500_PRCMU_QOS_POWER was never introduced in the kernel repository. So, the ifdef in ./include/linux/mfd/dbx500-prcmu.h was never effective. Remove these dead function prototypes. Signed-off-by:
Lukas Bulwahn <lukas.bulwahn@gmail.com> Reviewed-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20211227064839.21405-1-lukas.bulwahn@gmail.com
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Hans de Goede authored
For the CRC PMIC we end up with multiple IRQ domains with the same fwnode. One for the irqchip which demultiplexes the actual PMIC interrupt into interrupts for the various cells (known as the level 1 interrupts); And 2 more for the irqchips which are part of the crystal_cove_gpio and crystal_cove_charger cells. This leads to the following error being printed when CONFIG_GENERIC_IRQ_DEBUGFS is enabled: debugfs: File '\_SB.I2C7.PMIC' in directory 'domains' already present! Set the bus token of the main IRQ domain to DOMAIN_BUS_NEXUS to avoid this error, this also allows irq_find_matching_fwspec() to find the right domain if necessary. Note all 3 domain registering drivers need to set the IRQ domain bus token. This is necessary because the IRQ domain code defaults to creating the debugfs dir with just the fwnode name and then renames it when the bus token is set. So each one starts with the same default name and all 3 must be given a different name to avoid problems when one of the other drivers loads and starts with the same default name. Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
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Hans de Goede authored
The Crystal Cove PMIC has a pin which can be used to connect the IRQ of an external charger IC. On some boards this is used and we need to have a cell for this, with a driver which creates its own irqchip with a single IRQ for the charger driver to consume. The charger driver cannot directly consume the IRQ from the MFD level irqchip because the PMIC has 2 levels of interrupts and the second level interrupt status register, which is handled by the cell drivers, needs to have the IRQ acked to avoid an IRQ storm. Signed-off-by:
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Hans de Goede authored
The cells for the Crystal Cove PMIC are already mostly sorted by function / IRQ order. Move the ADC cell so that they are fully sorted. Also move some of the resource definitions so that their order matches the (new) order of the cells. Signed-off-by:
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Lee Jones authored
Merge branches 'ib-mfd-hwmon-regulator-5.18', 'ib-mfd-iio-5.18', 'ib-mfd-led-power-regulator-5.18', 'ib-mfd-mediatek-mt6366-5.18', 'ib-mfd-rtc-watchdog-5.18' and 'ib-mfd-spi-dt-5.18' into ibs-for-mfd-merged
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- 07 Mar, 2022 23 commits
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Johnson Wang authored
This adds support for the MediaTek MT6366 PMIC. This is a multifunction device with the following sub modules: - Regulator - RTC - Codec - Interrupt It is interfaced to the host controller using SPI interface by a proprietary hardware called PMIC wrapper or pwrap. MT6366 MFD is a child device of the pwrap. Signed-off-by:
Johnson Wang <johnson.wang@mediatek.com> Signed-off-by:
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Jiasheng Jiang authored
As the potential failure of the devm_request_threaded_irq(), it should be better to check the return value of the mc13xxx_irq_request() and return error if fails. Fixes: 8e005935 ("mfd: Add mc13892 support to mc13xxx") Signed-off-by:
Jiasheng Jiang <jiasheng@iscas.ac.cn> Signed-off-by:
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Luca Ceresoli authored
The RTC included in the MAX77714 PMIC is very similar to the one in the MAX77686. Reuse the rtc-max77686.c driver with the minimum required changes for the MAX77714 RTC. Signed-off-by:
Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by:
Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Acked-by:
Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by:
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Luca Ceresoli authored
Clarify why we need to ping the watchdog before changing the timeout by quoting the MAX77714 datasheet. Signed-off-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
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Luca Ceresoli authored
The MAX77714 is a MFD chip whose watchdog has the same programming procedures as the MAX77620 watchdog, but most register offsets and bit masks are different, as well as some features. Support the MAX77714 watchdog by adding a variant description table holding the differences. All the features implemented by this driver are available on the MAX77714 except for the lack of a WDTOFFC bit. Instead of using a "HAS_*" flag we handle this by holding in the cnfg_glbl2_cfg_bits struct field the bits (i.e. the features) to enable in the CNFG_GLBL2 register. These bits differ among the two models. This implementation allows to avoid any conditional code, keeping the execution flow unchanged. Signed-off-by:
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Luca Ceresoli authored
Add a simple driver for the Maxim MAX77714 PMIC, supporting RTC and watchdog only. Signed-off-by:
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Luca Ceresoli authored
Add bindings for the MAX77714 PMIC with GPIO, RTC and watchdog. Signed-off-by:
Rob Herring <robh@kernel.org> Reviewed-by:
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Luca Ceresoli authored
The MAX77714 RTC chip is explicitly set to 24-hour mode in max77686_rtc_probe() -> max77686_rtc_init_reg() and never changed back to 12-hour mode. Accordingly info->rtc_24hr_mode is set to 1 in the same place and never modified later, so it is de facto a constant. Yet there is code to read 12-hour time, which is unreachable. Remove the unused variable, the unreachable code to manage 12-hour mode and the defines that become unused due to the above changes. Signed-off-by:
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Luca Ceresoli authored
RTC_DATE and REG_RTC_DATE are used for the registers holding the day of month. Rename these constants to mean what they mean. Signed-off-by:
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Luca Ceresoli authored
Convert the comments documenting this struct to kernel-doc format for standardization and readability. Signed-off-by:
Randy Dunlap <rdunlap@infradead.org> Signed-off-by:
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Krzysztof Kozlowski authored
Convert the MFD part of Maxim MAX77802 PMIC to DT schema format. The example DTS was copied from existing DTS (exynos5800-peach-pi.dts), so keep the license as GPL-2.0-only. Signed-off-by:
Javier Martinez Canillas <javierm@redhat.com> Signed-off-by:
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Krzysztof Kozlowski authored
Convert the regulators of Maxim MAX77802 PMIC to DT schema format. Signed-off-by:
Mark Brown <broonie@kernel.org> Signed-off-by:
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Krzysztof Kozlowski authored
Convert the MFD part of Maxim MAX14577/MAX77836 MUIC to DT schema format. The example DTS was copied from existing DTS (exynos3250-rinato.dts), so keep the license as GPL-2.0-only. Signed-off-by:
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Krzysztof Kozlowski authored
Convert the regulator bindings of Maxim MAX14577/MAX77835 MUIC to DT schema format. The existing bindings were defined in ../bindings/mfd/max14577.txt. Signed-off-by:
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Krzysztof Kozlowski authored
Convert the Charger bindings of Maxim MAX14577/MAX77836 MUIC to DT schema format. The existing bindings were defined in ../bindings/mfd/max14577.txt. Signed-off-by:
Sebastian Reichel <sebastian.reichel@collabora.com> Signed-off-by:
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Krzysztof Kozlowski authored
The Samsung SoC SPI driver requires to provide controller-data node for each of SPI peripheral device nodes. Make this controller-data node optional, so DTS could be simpler. Suggested-by:
Sam Protsenko <semen.protsenko@linaro.org> Reviewed-by:
Andi Shyti <andi@etezian.org> Reviwed-by:
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Krzysztof Kozlowski authored
Correct level of indentation in the example. Signed-off-by:
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Krzysztof Kozlowski authored
The ChromeOS Embedded Controller appears on boards with Samsung Exynos SoC, where Exynos SPI bindings expect controller-data node. Reference SPI peripheral bindings which include now Samsung SPI peripheral parts. Signed-off-by:
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Krzysztof Kozlowski authored
Convert the Samsung SoC (S3C24xx, S3C64xx, S5Pv210, Exynos) SPI controller bindings to DT schema format. The conversion also drops requirement from providing controller-data and its data for each of SPI peripheral device nodes. The dtschema cannot express this and the requirement is being relaxed in the driver now. Signed-off-by:
Pratyush Yadav <p.yadav@ti.com> Reviewed-by:
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Krzysztof Kozlowski authored
The MAX77843 is used in Exynos5433-based TM2 boards and shares some parts of code with MAX77693 (regulator and haptic motor drivers). Include all MAX77843 drivers in the entry for Maxim PMIC/MUIC drivers for Exynos boards, so they will receive some dedicated review coverage. Signed-off-by:
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Krzysztof Kozlowski authored
Document the bindings for MAX77843 MFD driver, based on Exynos5433 TM2 devicetree. These are neither accurate nor finished bindings but at least allow parsing existing DTS files. The example DTS was copied from existing DTS (exynos5433-tm2-common.dtsi), so keep the license as GPL-2.0-only. Signed-off-by:
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Krzysztof Kozlowski authored
Document the bindings for MAX77843 regulator driver. The bindings are almost identical to MAX77693 bindings, except the actual names of regulators. Signed-off-by:
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Krzysztof Kozlowski authored
Document the bindings for MAX77843 MUIC/extcon driver, based on Exynos5433 TM2 devicetree. These are neither accurate nor finished bindings but at least allow parsing existing DTS files. Signed-off-by:
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- 14 Feb, 2022 6 commits
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Krzysztof Kozlowski authored
Convert the MFD part of Maxim MAX77693 MUIC to DT schema format. The example DTS was copied from existing DTS (exynos4412-midas.dtsi), so keep the license as GPL-2.0-only. Signed-off-by:
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Krzysztof Kozlowski authored
Convert the regulator bindings of Maxim MAX77693 MUIC to DT schema format. The existing bindings were defined in ../bindings/mfd/max77693.txt. Signed-off-by:
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Krzysztof Kozlowski authored
Convert the Charger bindings of Maxim MAX77693 MUIC to DT schema format. The existing bindings were defined in ../bindings/mfd/max77693.txt. Signed-off-by:
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Krzysztof Kozlowski authored
Convert the LEDs bindings of Maxim MAX77693 MUIC to DT schema format. The existing bindings were defined in ../bindings/mfd/max77693.txt. Signed-off-by:
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Jeff LaBundy authored
The vendor introduced an updated revision of IQS620A(T) silicon which is backwards-compatible with previous revisions, the only exception being the offset used to derive temperature. Enable this new revision by returning the appropriate offset as a function of the hardware number provided by the parent MFD. Signed-off-by:
Jeff LaBundy <jeff@labundy.com> Signed-off-by:
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Jeff LaBundy authored
Individual sub-devices may elect to make decisions based on the specific revision of silicon encountered at probe. This data is already read from the device, but is not retained. Pass this data on to the sub-devices by adding the software and hardware numbers (registers 0x01 and 0x02, respectively) to the iqs62x_core struct. Signed-off-by:
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- 08 Feb, 2022 5 commits
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Alistair Francis authored
This is a multi-function device to interface with the sy7636a EPD PMIC chip from Silergy. Signed-off-by:
Alistair Francis <alistair@alistair23.me> Acked-by:
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Alistair Francis authored
Signed-off-by:
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Alistair Francis authored
Signed-off-by:
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Alistair Francis authored
Add a Kconfig name to the "Simple Multi-Functional Device support (I2C)" device so that it can be enabled via menuconfig. Signed-off-by:
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Alistair Francis authored
Initial support for the Silergy SY7636A Power Management chip and regulator. Signed-off-by:
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- 23 Jan, 2022 1 commit
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Linus Torvalds authored
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