PALMASSW-LINUX

The Linux driver supports the PALMAS series of PMICs. The Linux driver supports communication through the I2C bus and interfaces with various sub-systems.

Linux Mainline Status

Available in Linux Main line: Yes
Available through git.ti.com: N/A

Supported Devices:

• twl6035
• twl6037
• tps65913

Linux Source Files

The files associated with this device are:

1. drivers/mfd/palmas.c
2. drivers/regulator/palmas-regulator.c
3. drivers/extcon/extcon-palmas.c
4. drivers/clk/clk-palmas.c
5. drivers/gpio/gpio-palmas.c
6. drivers/input/misc/palmas-pwrbutton.c
7. drivers/pinctrl/pinctrl-palmas.c
8. drivers/rtc/rtc-palmas.c
9. Documentation/devicetree/bindings/mfd/palmas.txt
10. Documentation/devicetree/bindings/regulator/palmas-pmic.txt
11. Documentation/devicetree/bindings/extcon/extcon-palmas.txt
12. Documentation/devicetree/bindings/clock/clk-palmas-clk32kg-clocks.txt
13. Documentation/devicetree/bindings/gpio/gpio-palmas.txt
14. Documentation/devicetree/bindings/input/ti,palmas-pwrbutton.txt
15. Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt
16. Documentation/devicetree/bindings/rtc/rtc-palmas.txt
17. include/linux/mfd/palmas.h

Source Files

drivers/mfd/palmas.c
drivers/regulator/palmas-regulator.c
drivers/extcon/extcon-palmas.c
drivers/clk/clk-palmas.c
drivers/gpio/gpio-palmas.c
drivers/input/misc/palmas-pwrbutton.c
drivers/pinctrl/pinctrl-palmas.c
drivers/rtc/rtc-palmas.c

Linux Device Tree Documenation

Documentation/devicetree/bindings/mfd/palmas.txt
Documentation/devicetree/bindings/regulator/palmas-pmic.txt
Documentation/devicetree/bindings/extcon/extcon-palmas.txt
Documentation/devicetree/bindings/clock/clk-palmas-clk32kg-clocks.txt
Documentation/devicetree/bindings/gpio/gpio-palmas.txt
Documentation/devicetree/bindings/input/ti,palmas-pwrbutton.txt
Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt
Documentation/devicetree/bindings/rtc/rtc-palmas.txt

Other Files

include/linux/mfd/palmas.h

Enabling Driver Support

Configure kernel with "make menuconfig" (alternatively use "make xconfig" or"make nconfig")

Menuconfig Location

Symbol: MFD_PALMAS [=y]Type  : booleanPrompt: TI Palmas series chips  Location:    -> Device Drivers      -> Multifunction device drivers  Defined at drivers/mfd/Kconfig:1049  Depends on: HAS_IOMEM [=y] && I2C [=y]=y  Selects: MFD_CORE [=y] && REGMAP_I2C [=y] && REGMAP_IRQ [=y]Symbol: REGULATOR_PALMAS [=y]Type  : tristatePrompt: TI Palmas PMIC Regulators  Location:    -> Device Drivers      -> Voltage and Current Regulator Support (REGULATOR [=y])  Defined at drivers/regulator/Kconfig:464  Depends on: REGULATOR [=y] && MFD_PALMAS [=y]Symbol: EXTCON_PALMAS [=y]Type  : tristatePrompt: Palmas USB EXTCON support  Location:    -> Device Drivers      -> External Connector Class (extcon) support (EXTCON [=y])  Defined at drivers/extcon/Kconfig:83  Depends on: EXTCON [=y] && MFD_PALMAS [=y]Symbol: COMMON_CLK_PALMAS [=y]Type  : tristatePrompt: Clock driver for TI Palmas devices  Location:    -> Device Drivers      -> Common Clock Framework  Defined at drivers/clk/Kconfig:143  Depends on: COMMON_CLK [=y] && MFD_PALMAS [=y]  Selected by: SND_OMAP_SOC_OMAP_ABE_TWL6040 [=y] && SOUND [=y] && !M68K && !UML && SND [=y] && SND_SOC [=y] && TWL6040_CORE [=y] && SND_OMAP_SOC [=y] && (ARCH_OMAP4 [=y] || SOC_OMAP5 [=y] && MFD_PALMAS [=y] || COMPILE_TEST [=y]) && SOC_OMAP5 [=y] && MFD_PALMAS [=y]Symbol: GPIO_PALMAS [=y]Type  : booleanPrompt: TI PALMAS series PMICs GPIO  Location:    -> Device Drivers      -> GPIO Support (GPIOLIB [=y])        -> MFD GPIO expanders  Defined at drivers/gpio/Kconfig:787  Depends on: GPIOLIB [=y] && MFD_PALMAS [=y]Symbol: INPUT_PALMAS_PWRBUTTON [=y]Type  : tristatePrompt: Palmas Power button Driver  Location:    -> Device Drivers      -> Input device support        -> Generic input layer (needed for keyboard, mouse, ...) (INPUT [=y])          -> Miscellaneous devices (INPUT_MISC [=y])  Defined at drivers/input/misc/Kconfig:520  Depends on: !UML && INPUT [=y] && INPUT_MISC [=y] && MFD_PALMAS [=y]Symbol: PINCTRL_PALMAS [=y]Type  : booleanPrompt: Pinctrl driver for the PALMAS Series MFD devices  Location:    -> Device Drivers      -> Pin controllers  Defined at drivers/pinctrl/Kconfig:219  Depends on: PINCTRL [=y] && OF [=y] && MFD_PALMAS [=y]  Selects: PINMUX [=y] && GENERIC_PINCONF [=y]Symbol: RTC_DRV_PALMAS [=y]Type  : tristatePrompt: TI Palmas RTC driver  Location:    -> Device Drivers      -> Real Time Clock (RTC_CLASS [=y])  Defined at drivers/rtc/Kconfig:394  Depends on: RTC_CLASS [=y] && I2C [=y] && MFD_PALMAS [=y]

Fixes and Code Enhancements

If there are fixes and or code enhancements that need to be added to thisdriver please either1. Send the patches to the relevant Linux Kernel community as listed in the maintainers file located: Hereor2.  Contact your TI representative.