MediaTek PMIC are multi-function devices that can handle key interrupts, typically there are two keys attached to PMIC, which called pwrkey and homekey. PWRKEY usually used to wake up system from sleep. Homekey can used as volume down key due to board design. Long press keys can shutdown PMIC, the mode can be choose to be one key only or two keys together.
This series add support for key functions for MediaTek PMIC MT6397/MT6323. Chen Zhong (5): mfd: mt6397: create irq mappings in mfd core driver dt-bindings: input: Add document bindings for mtk-pmic-keys dt-bindings: mfd: Add bindings for the keys as subnode of PMIC input: Add MediaTek PMIC keys support mfd: mt6397: Add PMIC keys support to MT6397 driver .../devicetree/bindings/input/mtk-pmic-keys.txt | 36 +++ Documentation/devicetree/bindings/mfd/mt6397.txt | 6 + drivers/input/keyboard/Kconfig | 9 + drivers/input/keyboard/Makefile | 1 + drivers/input/keyboard/mtk-pmic-keys.c | 331 ++++++++++++++++++++ drivers/mfd/mt6397-core.c | 40 ++- drivers/rtc/rtc-mt6397.c | 2 +- 7 files changed, 421 insertions(+), 4 deletions(-) create mode 100644 Documentation/devicetree/bindings/input/mtk-pmic-keys.txt create mode 100644 drivers/input/keyboard/mtk-pmic-keys.c -- 184.108.40.206