[v1,0/3] Add IMX8 SCU GPIO support

Message

Shenwei Wang Aug. 4, 2022, 6:49 p.m. UTC

The system controller (SCU) is the central unit to manage the resources
on i.MX8 platforms. The SCU firmware provides a set of APIs to access
the GPIO PINs on the SCU domain.

This patch series implements the standard GPIO driver over the SCU
firmware APIs, so that the GPIOs on the SCU domain could be accessed
like a local GPIO PINs.

Shenwei Wang (3):
  dt-bindings: gpio: Add imx-scu gpio driver bindings
  dt-bindings: firmware: imx: Add imx-scu gpio node
  firmware: imx: add imx-scu GPIO driver

 .../devicetree/bindings/firmware/fsl,scu.yaml |   5 +
 .../bindings/gpio/fsl,imx8-scu-gpio.yaml      |  39 +++++
 drivers/firmware/imx/Kconfig                  |   6 +
 drivers/firmware/imx/Makefile                 |   1 +
 drivers/firmware/imx/imx-scu-gpio.c           | 139 ++++++++++++++++++
 5 files changed, 190 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/gpio/fsl,imx8-scu-gpio.yaml
 create mode 100644 drivers/firmware/imx/imx-scu-gpio.c

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2.25.1