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Message-ID: <20240222091906.1bd13c03@booty>
Date: Thu, 22 Feb 2024 09:19:06 +0100
From: Luca Ceresoli <luca.ceresoli@...tlin.com>
To: Adam Ford <aford173@...il.com>
Cc: linux-arm-kernel@...ts.infradead.org, linux-phy@...ts.infradead.org,
 aford@...conembedded.com, Lucas Stach <l.stach@...gutronix.de>, Marek Vasut
 <marex@...x.de>, Vinod Koul <vkoul@...nel.org>, Kishon Vijay Abraham I
 <kishon@...nel.org>, Rob Herring <robh@...nel.org>, Krzysztof Kozlowski
 <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>,
 Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>,
 Pengutronix Kernel Team <kernel@...gutronix.de>, Fabio Estevam
 <festevam@...il.com>, NXP Linux Team <linux-imx@....com>, Catalin Marinas
 <catalin.marinas@....com>, Will Deacon <will@...nel.org>,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V5 5/6] arm64: dts: imx8mp: add HDMI display pipeline

Hi Adam,

On Sat, 17 Feb 2024 22:16:43 -0600
Adam Ford <aford173@...il.com> wrote:

> From: Lucas Stach <l.stach@...gutronix.de>
> 
> This adds the DT nodes for all the peripherals that make up the
> HDMI display pipeline.
> 
> Signed-off-by: Lucas Stach <l.stach@...gutronix.de>
> Signed-off-by: Adam Ford <aford173@...il.com>
> Tested-by: Marek Vasut <marex@...x.de>
> Tested-by: Luca Ceresoli <luca.ceresoli@...tlin.com>
> ---
> V5:  No change
> 
> V3:  Re-ordered the HDMI parts to properly come after irqstree_hdmi
>      inside AIPS4.  Change size of LCDIF3 and PVI to match TRM sizes
>      of 4KB.
> 
> V2:  I took this from Lucas' original submission with the following:
>      Removed extra clock from HDMI-TX since it is now part of the
>      power domain
>      Added interrupt-parent to PVI
>      Changed the name of the HDMI tranmitter to fsl,imx8mp-hdmi-tx
>      Added ports to HDMI-tx
> ---
>  arch/arm64/boot/dts/freescale/imx8mp.dtsi | 94 +++++++++++++++++++++++
>  1 file changed, 94 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> index cbb15ded4a74..433ea4ae6a16 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> @@ -1940,6 +1940,100 @@ irqsteer_hdmi: interrupt-controller@...c2000 {
>  				clock-names = "ipg";
>  				power-domains = <&hdmi_blk_ctrl IMX8MP_HDMIBLK_PD_IRQSTEER>;
>  			};
> +
> +			hdmi_pvi: display-bridge@...c4000 {
> +				compatible = "fsl,imx8mp-hdmi-pvi";
> +				reg = <0x32fc4000 0x1000>;
> +				interrupt-parent = <&irqsteer_hdmi>;
> +				interrupts = <12>;
> +				power-domains = <&hdmi_blk_ctrl IMX8MP_HDMIBLK_PD_PVI>;

After a small annoyance in my testing I realized here there should be:

  status = "disabled";

> +
> +				ports {
> +					#address-cells = <1>;
> +					#size-cells = <0>;
> +
> +					port@0 {
> +						reg = <0>;
> +						pvi_from_lcdif3: endpoint {
> +							remote-endpoint = <&lcdif3_to_pvi>;
> +						};
> +					};
> +
> +					port@1 {
> +						reg = <1>;
> +						pvi_to_hdmi_tx: endpoint {
> +							remote-endpoint = <&hdmi_tx_from_pvi>;
> +						};
> +					};
> +				};
> +			};
> +
> +			lcdif3: display-controller@...c6000 {
> +				compatible = "fsl,imx8mp-lcdif";
> +				reg = <0x32fc6000 0x1000>;
> +				interrupt-parent = <&irqsteer_hdmi>;
> +				interrupts = <8>;
> +				clocks = <&hdmi_tx_phy>,
> +					 <&clk IMX8MP_CLK_HDMI_APB>,
> +					 <&clk IMX8MP_CLK_HDMI_ROOT>;
> +				clock-names = "pix", "axi", "disp_axi";
> +				power-domains = <&hdmi_blk_ctrl IMX8MP_HDMIBLK_PD_LCDIF>;

Here as well:

  status = "disabled";

With those fixed you can add my:

 Reviewed-by: Luca Ceresoli <luca.ceresoli@...tlin.com>

-- 
Luca Ceresoli, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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