[PATCH 04/12] drm/rockchip: dw_hdmi: add regulator support

[Rob Herring]

On Wed, Nov 17, 2021 at 03:33:39PM +0100, Sascha Hauer wrote:
> The RK3568 has HDMI_TX_AVDD0V9 and HDMI_TX_AVDD_1V8 supply inputs needed
> for the HDMI port. add support for these to the driver for boards which
> have them supplied by switchable regulators.
> 
> Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
> ---
>  .../display/rockchip/rockchip,dw-hdmi.yaml    |  6 ++

Bindings should be a separate patch. Include this as part of adding 
RK3568 support to the binding.

>  drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c   | 58 ++++++++++++++++++-
>  2 files changed, 61 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml
> index 53fa42479d5b7..293b2cfbf739f 100644
> --- a/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml
> +++ b/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml
> @@ -28,6 +28,12 @@ properties:
>    reg-io-width:
>      const: 4
>  
> +  avdd-0v9-supply:
> +    description: A 0.9V supply that powers up the SoC internal circuitry.
> +
> +  avdd-1v8-supply:
> +    description: A 0.9V supply that powers up the SoC internal circuitry.

0.9V ???

> +
>    clocks:
>      minItems: 2
>      items: