Re: [PATCH v11 3/3] arm64: dts: imx93: Add parallel display output nodes

Marco Felsch
2026-03-03T10:42:32Z

Hi Frank,

On 26-03-03, Marco Felsch wrote:
> Add required OF nodes to support the i.MX93 parallel output (DPI) path.
>
> On the i.MX93 a single LCDIF is connected to three bridges: DPI, LVDS
> LDB and the MIPI-DSI whereas the i.MX91 support only the DPI bridge.
>
> Map endpoint@0 as DPI bridge output since the i.MX93 TRM (Figure 485.
> MEDIAMIX block diagram) doesn't mention any port-number <-> bridge
> combination.
>
> Set the MEDIA-AXI and MEDIA-APB clocks to the overdrive (OD) values
> since the i.MX93 and i.MX91 use the overdrive (OD) clk settings per
> default.
>
> Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>

Please ignore this particular patch since you already applied this one.

Next time we should align the apply with the rest of the patch series if
dt-bindings and driver behaviors are involved. In such case the final
integration patch should be merged at the end and not at the beginning
:)

Thanks,
Marco

> ---
> arch/arm64/boot/dts/freescale/imx91_93_common.dtsi | 54 ++++++++++++++++++++++
> arch/arm64/boot/dts/freescale/imx93.dtsi | 12 +++++
> 2 files changed, 66 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx91_93_common.dtsi b/arch/arm64/boot/dts/freescale/imx91_93_common.dtsi
> index 7958cef353766a430df5e626ff2403dc05a974b1..5a8813df6bc993d559fb0b20fc742a106bfe6315 100644
> --- a/arch/arm64/boot/dts/freescale/imx91_93_common.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx91_93_common.dtsi
> @@ -1122,8 +1122,62 @@ media_blk_ctrl: system-controller@4ac10000 {
> <&clk IMX93_CLK_MIPI_DSI_GATE>;
> clock-names = "apb", "axi", "nic", "disp", "cam",
> "pxp", "lcdif", "isi", "csi", "dsi";
> + assigned-clocks = <&clk IMX93_CLK_MEDIA_AXI>,
> + <&clk IMX93_CLK_MEDIA_APB>,
> + <&clk IMX93_CLK_MEDIA_DISP_PIX>;
> + assigned-clock-parents = <&clk IMX93_CLK_SYS_PLL_PFD1>,
> + <&clk IMX93_CLK_SYS_PLL_PFD1_DIV2>,
> + <&clk IMX93_CLK_VIDEO_PLL>;
> + assigned-clock-rates = <400000000>, <133333333>;
> #power-domain-cells = <1>;
> status = "disabled";
> +
> + dpi_bridge: dpi-bridge {
> + compatible = "nxp,imx93-pdfc";
> + status = "disabled";
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> +
> + dpi_from_lcdif: endpoint {
> + remote-endpoint = <&lcdif_to_dpi>;
> + };
> + };
> +
> + port@1 {
> + reg = <1>;
> +
> + dpi_to_panel: endpoint {
> + };
> + };
> + };
> + };
> + };
> +
> + lcdif: display-controller@4ae30000 {
> + compatible = "fsl,imx93-lcdif";
> + reg = <0x4ae30000 0x23c>;
> + interrupts = <GIC_SPI 176 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&clk IMX93_CLK_MEDIA_DISP_PIX>,
> + <&clk IMX93_CLK_LCDIF_GATE>,
> + <&clk IMX93_CLK_MEDIA_AXI>;
> + clock-names = "pix", "axi", "disp_axi";
> + power-domains = <&media_blk_ctrl IMX93_MEDIABLK_PD_LCDIF>;
> + status = "disabled";
> +
> + port {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + lcdif_to_dpi: endpoint@0 {
> + reg = <0>;
> + remote-endpoint = <&dpi_from_lcdif>;
> + };
> + };
> };
>
> usbotg1: usb@4c100000 {
> diff --git a/arch/arm64/boot/dts/freescale/imx93.dtsi b/arch/arm64/boot/dts/freescale/imx93.dtsi
> index 7b27012dfcb564650882dc8c40e836e797b2fda1..5436b48b30e89eb1f939b398ce1bf105abe7e34b 100644
> --- a/arch/arm64/boot/dts/freescale/imx93.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx93.dtsi
> @@ -150,6 +150,18 @@ l3_cache: l3-cache {
> };
> };
>
> +&lcdif {
> + port {
> + lcdif_to_ldb: endpoint@1 {
> + reg = <1>;
> + };
> +
> + lcdif_to_dsi: endpoint@2 {
> + reg = <2>;
> + };
> + };
> +};
> +
> &src {
> mlmix: power-domain@44461800 {
> compatible = "fsl,imx93-src-slice";
>
> --
> 2.47.3
>

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