[PATCH v6 0/7] gpio: introduce a GPIO driver for SCMI

From: Dan Carpenter

Date: Mon Mar 23 2026 - 15:37:08 EST


This basically abandons my earlier attempts and goes back to Takahiro
Akashi's driver. Here is the link to Takahiro's patchset:

https://lore.kernel.org/all/20231005025843.508689-1-takahiro.akashi@xxxxxxxxxx/

v6: Fix a build error when CONFIG_PINCONF is disabled
Fix the dt-binding subject and my email address
Use pinconf_to_config_packed() instead of PIN_CONF_PACKED()

v5: Addresses Andy's cleanups to the driver.
Adrresses Krzysztof's comments about the dt spec file.
And almost all the subsystem prefixes were wrong.

v4: Addressed Andy's comments about kernel-doc
Addressed Rob's comments on the spec file

v3: Forward ported Takahiro's patches and added some fixes ups to make
it work on current kernels.

AKASHI Takahiro (3):
pinctrl: introduce pinctrl_gpio_get_config()
gpio: dt-bindings: Add GPIO on top of generic pin control
gpio: gpio-by-pinctrl: add pinctrl based generic GPIO driver

Dan Carpenter (4):
pinctrl: scmi: Add SCMI_PIN_INPUT_VALUE
pinctrl: scmi: Delete PIN_CONFIG_OUTPUT_IMPEDANCE_OHMS support
pinctrl: scmi: ignore PIN_CONFIG_PERSIST_STATE
firmware: arm_scmi: Allow PINCTRL_REQUEST to return EOPNOTSUPP

.../bindings/gpio/pin-control-gpio.yaml | 59 ++++++++++
drivers/firmware/arm_scmi/pinctrl.c | 2 +
drivers/gpio/Kconfig | 13 +++
drivers/gpio/Makefile | 1 +
drivers/gpio/gpio-by-pinctrl.c | 101 ++++++++++++++++++
drivers/pinctrl/core.c | 31 ++++++
drivers/pinctrl/pinconf.h | 6 ++
drivers/pinctrl/pinctrl-scmi.c | 46 +++++---
include/linux/pinctrl/consumer.h | 9 ++
9 files changed, 255 insertions(+), 13 deletions(-)
create mode 100644 Documentation/devicetree/bindings/gpio/pin-control-gpio.yaml
create mode 100644 drivers/gpio/gpio-by-pinctrl.c

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2.53.0