xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

gpio: Add Spreadtrum EIC driver support

Browse Source 
The Spreadtrum digital-chip EIC controller has 4 sub-modules: debounce EIC,
latch EIC, async EIC and sync EIC, and each sub-module can has multiple
banks and each bank contains 8 EICs.

Each EIC can only be used as input mode, and has the capability to trigger
interrupts when detecting input signals.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Baolin Wang
2018-03-05 10:56:51 +08:00
committed by Linus Walleij
parent be520cbc85
commit 25518e024e
3 changed files with 615 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/gpio/Kconfig
View File

@@ -170,6 +170,14 @@ config GPIO_DWAPB
Say Y or M here to build support for the Synopsys DesignWare APB
GPIO block.
config GPIO_EIC_SPRD
tristate "Spreadtrum EIC support"
depends on ARCH_SPRD || COMPILE_TEST
depends on OF_GPIO
select GPIOLIB_IRQCHIP
help
Say yes here to support Spreadtrum EIC device.
config GPIO_EM
tristate "Emma Mobile GPIO"
depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO