Re: [PATCH v6 5/8] MIPS: DTS: jz4780: Account for Synopsys HDMI driver and LCD controllers

[Paul Cercueil]

Hi Nikolaus,

Le mer., nov. 10 2021 at 20:43:30 +0100, H. Nikolaus Schaller 
<hns@xxxxxxxxxxxxx> a écrit :
> From: Paul Boddie <paul@xxxxxxxxxxxxx>
>
> A specialisation of the generic Synopsys HDMI driver is employed for 
> JZ4780
> HDMI support. This requires a new driver, plus device tree and 
> configuration
> modifications.
>
> Signed-off-by: Paul Boddie <paul@xxxxxxxxxxxxx>
> Signed-off-by: H. Nikolaus Schaller <hns@xxxxxxxxxxxxx>
> ---
>  arch/mips/boot/dts/ingenic/jz4780.dtsi | 40 
> ++++++++++++++++++++++++++
>  1 file changed, 40 insertions(+)
>
> diff --git a/arch/mips/boot/dts/ingenic/jz4780.dtsi 
> b/arch/mips/boot/dts/ingenic/jz4780.dtsi
> index 9e34f433b9b58..98cc3360bbbb9 100644
> --- a/arch/mips/boot/dts/ingenic/jz4780.dtsi
> +++ b/arch/mips/boot/dts/ingenic/jz4780.dtsi
> @@ -424,6 +424,46 @@ i2c4: i2c@10054000 {
>  		status = "disabled";
>  	};
>
> +	hdmi: hdmi@10180000 {
> +		compatible = "ingenic,jz4780-dw-hdmi";
> +		reg = <0x10180000 0x8000>;
> +		reg-io-width = <4>;
> +
> +		clocks = <&cgu JZ4780_CLK_AHB0>, <&cgu JZ4780_CLK_HDMI>;
> +		clock-names = "iahb", "isfr";
> +
> +		interrupt-parent = <&intc>;
> +		interrupts = <3>;
> +
> +		status = "disabled";
> +	};
> +
> +	lcdc0: lcdc0@13050000 {
> +		compatible = "ingenic,jz4780-lcd";
> +		reg = <0x13050000 0x1800>;
> +
> +		clocks = <&cgu JZ4780_CLK_TVE>, <&cgu JZ4780_CLK_LCD0PIXCLK>;
> +		clock-names = "lcd", "lcd_pclk";
> +
> +		interrupt-parent = <&intc>;
> +		interrupts = <31>;
> +
> +		status = "disabled";
> +	};
> +
> +	lcdc1: lcdc1@130a0000 {
> +		compatible = "ingenic,jz4780-lcd";
> +		reg = <0x130a0000 0x1800>;
> +
> +		clocks = <&cgu JZ4780_CLK_TVE>, <&cgu JZ4780_CLK_LCD1PIXCLK>;
> +		clock-names = "lcd", "lcd_pclk";
> +
> +		interrupt-parent = <&intc>;
> +		interrupts = <31>;

You have the two LCD controllers wired to the same interrupt, that 
can't be right.

From what I can read in the PM the LCD1 IRQ is number 23.

Cheers,
-Paul

> +
> +		status = "disabled";
> +	};
> +
>  	nemc: nemc@13410000 {
>  		compatible = "ingenic,jz4780-nemc", "simple-mfd";
>  		reg = <0x13410000 0x10000>;
> --
> 2.33.0