diff options
| author | Théo Lebrun <theo.lebrun@bootlin.com> | 2024-02-28 12:28:04 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2024-02-29 10:22:33 +0100 |
| commit | 966942ae493650210b9514f3d4bfc95f78ef0129 (patch) | |
| tree | 49165f05e6c0deb06377766942d72824b4aafdc6 /drivers/gpio/Kconfig | |
| parent | 53cf6b72e074864b94ade97dcb6f30b5ac1a82dc (diff) | |
| download | lwn-966942ae493650210b9514f3d4bfc95f78ef0129.tar.gz lwn-966942ae493650210b9514f3d4bfc95f78ef0129.zip | |
gpio: nomadik: extract GPIO platform driver from drivers/pinctrl/nomadik/
Previously, drivers/pinctrl/nomadik/pinctrl-nomadik.c registered two
platform drivers: pinctrl & GPIO. Move the GPIO aspect to the
drivers/gpio/ folder, as would be expected.
Both drivers are intertwined for a reason; pinctrl requires access to
GPIO registers for pinmuxing, pull-disable, disabling interrupts while
setting the muxing and wakeup control. Information sharing is done
through a shared array containing GPIO chips and a few helper
functions. That shared array is not touched from gpio-nomadik when
CONFIG_PINCTRL_NOMADIK is not defined.
Make no change to the code that moved into gpio-nomadik; there should be
no behavior change following. A few functions are shared and header
comments are added. Checkpatch warnings are addressed. NUM_BANKS is
renamed to NMK_MAX_BANKS.
It is supported to compile gpio-nomadik without pinctrl-nomadik. The
opposite is not true.
Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-6-3ba757474006@bootlin.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/Kconfig')
| -rw-r--r-- | drivers/gpio/Kconfig | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 1301cec94f12..ff83371251c1 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -478,6 +478,18 @@ config GPIO_MXS select GPIO_GENERIC select GENERIC_IRQ_CHIP +config GPIO_NOMADIK + bool "Nomadik GPIO driver" + depends on ARCH_U8500 || ARCH_NOMADIK || COMPILE_TEST + select OF_GPIO + select GPIOLIB_IRQCHIP + help + Say yes here to support the Nomadik SoC GPIO block. + + It handles up to 32 GPIOs per bank, that can all be interrupt sources. + It is deeply interconnected with the associated pinctrl driver as GPIO + registers handle muxing ("alternate functions") as well. + config GPIO_NPCM_SGPIO bool "Nuvoton SGPIO support" depends on ARCH_NPCM || COMPILE_TEST |