Re: [PATCH] ARM: dts: turris-omnia: Add mcu node

Pali Rohár
2022-08-31T14:28:27Z

PING?

On Friday 19 August 2022 15:11:52 Pali Rohár wrote:
> At i2c address 0x2a is MCU command interface which provides access to GPIOs
> connected to Turris Omnia MCU. So define mcu node in Turris Omnia DTS file.
>
> Signed-off-by: Pali Rohár <pali@kernel.org>
>
> ---
> Same change was already sent to U-Boot project together with driver. As
> Turris Omnia DTS file is shared between Linux kernel U-Boot, I'm sending
> this change also in Linux. There is a plan to write also Linux driver for
> Turris Omnia MCU, like there is already in U-Boot.
>
> https://source.denx.de/u-boot/u-boot/-/commit/832738974806e6264a3d0ac2aaa92d0f662fd128
> https://source.denx.de/u-boot/u-boot/-/blob/master/drivers/gpio/turris_omnia_mcu.c
> ---
> arch/arm/boot/dts/armada-385-turris-omnia.dts | 8 +++++++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/armada-385-turris-omnia.dts b/arch/arm/boot/dts/armada-385-turris-omnia.dts
> index f4878df39753..f655e9229d68 100644
> --- a/arch/arm/boot/dts/armada-385-turris-omnia.dts
> +++ b/arch/arm/boot/dts/armada-385-turris-omnia.dts
> @@ -184,7 +184,13 @@
> #size-cells = <0>;
> reg = <0>;
>
> - /* STM32F0 command interface at address 0x2a */
> + /* MCU command i2c API */
> + mcu: mcu@2a {
> + compatible = "cznic,turris-omnia-mcu";
> + reg = <0x2a>;
> + gpio-controller;
> + #gpio-cells = <3>;
> + };
>
> led-controller@2b {
> compatible = "cznic,turris-omnia-leds";
> --
> 2.20.1
>