On Thu, May 18, 2017 at 12:43:44AM +0800, Icenowy Zheng wrote:
> -On SoCs other than the A33 and V3s, there is one more clock required:
> +For the following compatibles:
> +   * allwinner,sun5i-a13-tcon
> +   * allwinner,sun6i-a31-tcon
> +   * allwinner,sun6i-a31s-tcon
> +   * allwinner,sun8i-a33-tcon
> +   * allwinner,sun8i-v3s-tcon
> +there is one more clock and one more property required:
> + - clocks:
> +   - 'tcon-ch0': The clock driving the TCON channel 0
> + - clock-output-names: Name of the pixel clock created
> +
> +For the following compatibles:
> +   * allwinner,sun5i-a13-tcon
> +   * allwinner,sun6i-a31-tcon
> +   * allwinner,sun6i-a31s-tcon
> +   * allwinner,sun8i-h3-tcon0
> +there is one more clock required:
>     - 'tcon-ch1': The clock driving the TCON channel 1

Putting ID's in the compatible name is usually a bad idea. What is the
difference between the two? Only that the second one doesn't have a
clock?

That seems highly unlikely. How does it generate the pixel clock
frequency?

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com