Hello Marek,
Am Montag, 15. Mai 2023, 18:24:24 CEST schrieb Marek Vasut:
> Add TC9595 DSI-to-DPI and DSI-to-(e)DP bridge to
> DH electronics i.MX8M Plus DHCOM SoM . The bridge
> is populated on the SoM, but disabled by default
> unless used for display output.
>
> Signed-off-by: Marek Vasut <marex@xxxxxxx>
Were you actually able to access the display? E.g. reading DPCD via AUX
channel?
Best regards,
Alexander
> ---
> Cc: Conor Dooley <conor+dt@xxxxxxxxxx>
> Cc: Fabio Estevam <festevam@xxxxxxxxx>
> Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@xxxxxxxxxx>
> Cc: NXP Linux Team <linux-imx@xxxxxxx>
> Cc: Pengutronix Kernel Team <kernel@xxxxxxxxxxxxxx>
> Cc: Rob Herring <robh+dt@xxxxxxxxxx>
> Cc: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
> Cc: Shawn Guo <shawnguo@xxxxxxxxxx>
> Cc: devicetree@xxxxxxxxxxxxxxx
> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> ---
> .../boot/dts/freescale/imx8mp-dhcom-som.dtsi | 55 +++++++++++++++++++
> 1 file changed, 55 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi
> b/arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi index
> 98a11c31d7d45..9c0cb75386e36 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi
> @@ -240,6 +240,36 @@ &i2c3 {
> sda-gpios = <&gpio5 19 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
> status = "okay";
>
> + tc_bridge: bridge@f {
> + compatible = "toshiba,tc9595", "toshiba,tc358767";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_tc9595>;
> + reg = <0xf>;
> + clock-names = "ref";
> + clocks = <&clk IMX8MP_CLK_CLKOUT2>;
> + assigned-clocks = <&clk IMX8MP_CLK_CLKOUT2_SEL>,
> + <&clk IMX8MP_CLK_CLKOUT2>,
> + <&clk IMX8MP_AUDIO_PLL2_OUT>;
> + assigned-clock-parents = <&clk IMX8MP_AUDIO_PLL2_OUT>;
> + assigned-clock-rates = <13000000>, <13000000>,
<156000000>;
> + reset-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;
> + status = "disabled";
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> +
> + tc_bridge_in: endpoint {
> + data-lanes = <1 2 3 4>;
> + remote-endpoint =
<&dsi_out>;
> + };
> + };
> + };
> + };
> +
> pmic: pmic@25 {
> compatible = "nxp,pca9450c";
> reg = <0x25>;
> @@ -406,6 +436,22 @@ &i2c5 { /* HDMI EDID bus */
> status = "okay";
> };
>
> +&mipi_dsi {
> + samsung,burst-clock-frequency = <160000000>;
> + samsung,esc-clock-frequency = <10000000>;
> +
> + ports {
> + port@1 {
> + reg = <1>;
> +
> + dsi_out: endpoint {
> + data-lanes = <1 2 3 4>;
> + remote-endpoint = <&tc_bridge_in>;
> + };
> + };
> + };
> +};
> +
> &pwm1 {
> pinctrl-0 = <&pinctrl_pwm1>;
> pinctrl-names = "default";
> @@ -880,6 +926,15 @@ MX8MP_IOMUXC_SAI3_TXD__AUDIOMIX_SAI3_TX_DATA00 0xd6
>
> >;
>
> };
>
> + pinctrl_tc9595: dhcom-tc9595-grp {
> + fsl,pins = <
> + /* RESET_DSIBRIDGE */
> + MX8MP_IOMUXC_SAI1_RXC__GPIO4_IO01
0x40000146
> + /* DSI-CONV_INT Interrupt */
> + MX8MP_IOMUXC_SAI5_RXD0__GPIO3_IO21
0x141
> + >;
> + };
> +
> pinctrl_touch: dhcom-touch-grp {
> fsl,pins = <
> /* #TOUCH_INT */
--
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