dasharo/linux
0
0
Fork 0
mirror of https://github.com/Dasharo/linux.git synced 2026-03-06 15:25:10 -08:00
Code Issues Packages Projects Releases Wiki Activity

gpio: nuvoton: Add Nuvoton NPCM sgpio driver

Browse Source 
Add Nuvoton BMC NPCM7xx/NPCM8xx sgpio driver support.
Nuvoton NPCM SGPIO module is combine serial to parallel IC (HC595)
and parallel to serial IC (HC165), and use APB3 clock to control it.
This interface has 4 pins  (D_out , D_in, S_CLK, LDSH).
BMC can use this driver to increase 64 GPI pins and 64 GPO pins to use.

Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This commit is contained in:
Jim Liu
2023-12-29 15:45:08 +08:00
committed by Bartosz Golaszewski
parent a0e4375cb0
commit c4f8457d17
3 changed files with 627 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/gpio/Kconfig
View File

@@ -478,6 +478,13 @@ config GPIO_MXS
select GPIO_GENERIC
select GENERIC_IRQ_CHIP
config GPIO_NPCM_SGPIO
bool "Nuvoton SGPIO support"
depends on ARCH_NPCM || COMPILE_TEST
select GPIOLIB_IRQCHIP
help
Say Y here to support Nuvoton NPCM7XX/NPCM8XX SGPIO functionality.
config GPIO_OCTEON
tristate "Cavium OCTEON GPIO"
depends on CAVIUM_OCTEON_SOC

1
drivers/gpio/Makefile
View File

@@ -116,6 +116,7 @@ obj-$(CONFIG_GPIO_MT7621) += gpio-mt7621.o
obj-$(CONFIG_GPIO_MVEBU) += gpio-mvebu.o
obj-$(CONFIG_GPIO_MXC) += gpio-mxc.o
obj-$(CONFIG_GPIO_MXS) += gpio-mxs.o
obj-$(CONFIG_GPIO_NPCM_SGPIO) += gpio-npcm-sgpio.o
obj-$(CONFIG_GPIO_OCTEON) += gpio-octeon.o
obj-$(CONFIG_GPIO_OMAP) += gpio-omap.o
obj-$(CONFIG_GPIO_PALMAS) += gpio-palmas.o

619
drivers/gpio/gpio-npcm-sgpio.c Normal file
View File

File diff suppressed because it is too large Load Diff