Commit a1d1e0e3 authored by Jonathan Neuschäfer's avatar Jonathan Neuschäfer Committed by Linus Walleij
Browse files

pinctrl: nuvoton: Add driver for WPCM450 



This driver is based on the one for NPCM7xx, because the WPCM450 is a
predecessor of those SoCs. Notable differences:

- On WPCM450, the GPIO registers are not organized in multiple banks,
  but rather placed continually into the same register block. This
  affects how register offsets are computed.
- Pinmux nodes can explicitly select GPIO mode, whereas in the npcm7xx
  driver, this happens automatically when a GPIO is requested.

Some functionality implemented in the hardware was (for now) left unused
in the driver, specifically blinking and pull-up/down.

Signed-off-by: default avatarJonathan Neuschäfer <j.neuschaefer@gmx.net>
Reported-by: default avatarkernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/20220129115228.2257310-6-j.neuschaefer@gmx.net


Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 1a1e33b3

MAINTAINERS

+1 −0
Original line number Diff line number Diff line
@@ -2376,6 +2376,7 @@ S: Maintained 
F:	Documentation/devicetree/bindings/*/*wpcm*

F:	arch/arm/boot/dts/nuvoton-wpcm450*

F:	arch/arm/mach-npcm/wpcm450.c

F:	drivers/*/*/*wpcm*

F:	drivers/*/*wpcm*









ARM/NXP S32G ARCHITECTURE
































drivers/pinctrl/Makefile



+1
−1






























Original line number
Diff line number
Diff line







@@ -62,7 +62,7 @@ obj-y				+= mediatek/







obj-$(CONFIG_PINCTRL_MESON)	+= meson/









obj-y				+= mvebu/









obj-y				+= nomadik/









obj-$(CONFIG_ARCH_NPCM7XX)	+= nuvoton/









obj-y				+= nuvoton/









obj-$(CONFIG_PINCTRL_PXA)	+= pxa/









obj-$(CONFIG_ARCH_QCOM)		+= qcom/









obj-$(CONFIG_PINCTRL_RALINK)	+= ralink/
































drivers/pinctrl/nuvoton/Kconfig



+18
−0






























Original line number
Diff line number
Diff line









# SPDX-License-Identifier: GPL-2.0-only



















config PINCTRL_WPCM450









	tristate "Pinctrl and GPIO driver for Nuvoton WPCM450"









	depends on ARCH_WPCM450 || COMPILE_TEST









	select PINMUX









	select PINCONF









	select GENERIC_PINCONF









	select GPIOLIB









	select GPIO_GENERIC









	select GPIOLIB_IRQCHIP









	help









	  Say Y or M here to enable pin controller and GPIO support for









	  the Nuvoton WPCM450 SoC. This is strongly recommended when









	  building a kernel that will run on this chip.



















	  If this driver is compiled as a module, it will be named









	  pinctrl-wpcm450.



















config PINCTRL_NPCM7XX









	bool "Pinctrl and GPIO driver for Nuvoton NPCM7XX"









	depends on (ARCH_NPCM7XX || COMPILE_TEST) && OF
































drivers/pinctrl/nuvoton/Makefile



+1
−0






























Original line number
Diff line number
Diff line









# SPDX-License-Identifier: GPL-2.0









# Nuvoton pinctrl support



















obj-$(CONFIG_PINCTRL_WPCM450)	+= pinctrl-wpcm450.o









obj-$(CONFIG_PINCTRL_NPCM7XX)	+= pinctrl-npcm7xx.o
























drivers/pinctrl/nuvoton/pinctrl-wpcm450.c
0 → 100644



+1150
−0




























File added.
Preview size limit exceeded, changes collapsed.