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Date: Mon, 05 Feb 2024 08:29:50 +0100
From: Alexander Stein <alexander.stein@...tq-group.com>
To: linux-arm-kernel@...ts.infradead.org, Adam Ford <aford173@...il.com>
Cc: marex@...x.de, frieder.schrempf@...tron.de, Lucas Stach <l.stach@...gutronix.de>, Adam Ford <aford173@...il.com>, Andrzej Hajda <andrzej.hajda@...el.com>, Neil Armstrong <neil.armstrong@...aro.org>, Robert Foss <rfoss@...nel.org>, Laurent Pinchart <Laurent.pinchart@...asonboard.com>, Jonas Karlman <jonas@...boo.se>, Jernej Skrabec <jernej.skrabec@...il.com>, David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>, Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, Rob Herring <robh+dt@...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>, Philipp Zabel <p.zabel@...gutronix.de>, Vinod Koul <vkoul@...nel.org>, Kishon Vijay Abraham I <kishon@...nel.org>,
Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>, Liu Ying <victor.liu@....com>, Ulf Hansson <ulf.hansson@...aro.org>, dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, linux-phy@...ts.infradead.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH V8 11/12] arm64: dts: imx8mp: add HDMI display pipeline
Hi Adam,
thanks for working on this.
Am Samstag, 3. Februar 2024, 17:52:51 CET schrieb Adam Ford:
> 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>
>
> ---
> 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
> 5e51a766f3d9..e84b4f40e570 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> @@ -1412,6 +1412,100 @@ 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 0x40>;
> + interrupt-parent = <&irqsteer_hdmi>;
> + interrupts = <12 IRQ_TYPE_LEVEL_HIGH>;
irqsteer_hdmi has #interrupt-cells = <1>, so IRQ flags should be removed.
dtbs_check also warns about this.
> + power-domains = <&hdmi_blk_ctrl
IMX8MP_HDMIBLK_PD_PVI>;
> +
> + 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 0x238>;
> + interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
irqsteer_hdmi has #interrupt-cells = <1>, so IRQ flags should be removed.
dtbs_check also warns about this.
> + interrupt-parent = <&irqsteer_hdmi>;
> + 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>;
> +
> + port {
> + lcdif3_to_pvi: endpoint {
> + remote-endpoint =
<&pvi_from_lcdif3>;
> + };
> + };
> + };
> +
> + hdmi_tx: hdmi@...d8000 {
> + compatible = "fsl,imx8mp-hdmi-tx";
> + reg = <0x32fd8000 0x7eff>;
> + interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
irqsteer_hdmi has #interrupt-cells = <1>, so IRQ flags should be removed.
dtbs_check also warns about this.
> + interrupt-parent = <&irqsteer_hdmi>;
> + clocks = <&clk IMX8MP_CLK_HDMI_APB>,
> + <&clk
IMX8MP_CLK_HDMI_REF_266M>,
> + <&clk IMX8MP_CLK_32K>,
> + <&hdmi_tx_phy>;
> + clock-names = "iahb", "isfr", "cec",
"pix";
> + assigned-clocks = <&clk
IMX8MP_CLK_HDMI_REF_266M>;
> + assigned-clock-parents = <&clk
IMX8MP_SYS_PLL1_266M>;
> + power-domains = <&hdmi_blk_ctrl
IMX8MP_HDMIBLK_PD_HDMI_TX>;
> + reg-io-width = <1>;
> + status = "disabled";
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> +
> + hdmi_tx_from_pvi:
endpoint {
> + remote-
endpoint = <&pvi_to_hdmi_tx>;
> + };
> + };
> +
> + port@1 {
> + reg = <1>;
> + /* Point endpoint
to the HDMI connector */
> + };
> + };
> + };
> +
> + hdmi_tx_phy: phy@...dff00 {
> + compatible = "fsl,imx8mp-hdmi-phy";
> + reg = <0x32fdff00 0x100>;
> + clocks = <&clk IMX8MP_CLK_HDMI_APB>,
> + <&clk IMX8MP_CLK_HDMI_24M>;
> + clock-names = "apb", "ref";
> + assigned-clocks = <&clk
IMX8MP_CLK_HDMI_24M>;
> + assigned-clock-parents = <&clk
IMX8MP_CLK_24M>;
> + power-domains = <&hdmi_blk_ctrl
IMX8MP_HDMIBLK_PD_HDMI_TX_PHY>;
> + #clock-cells = <0>;
> + #phy-cells = <0>;
> + status = "disabled";
> + };
According to RM these blocks are part of AIPS4, so it should be below
hsio_blk_ctrl.
Best regards,
Alexander
> };
>
> aips5: bus@...00000 {
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