Re: [PATCH v8 5/5] arm64: dts: ti: k3-am69-sk: Add DP and HDMI support

From: Roger Quadros
Date: Tue Aug 01 2023 - 12:48:18 EST



On 01/08/2023 10:00, Jayesh Choudhary wrote:
> From: Dasnavis Sabiya <sabiya.d@xxxxxx>
>
> AM69 starter kit features an HDMI port and an eDP port.
>
> Add assigned clocks for DSS, DT node for DisplayPort PHY,
> pinmux for HDMI hotplug and power down, mcu_i2c1 and dss_vout
> for HDMI.
> Also enable Serdes4 settings for DP display.
>
> Add the endpoint nodes to describe connection from:
> DSS => MHDP => DisplayPort connector
> DSS => TI TFP410 DPI-to-DVI Bridge => HDMI connector
>
> Signed-off-by: Dasnavis Sabiya <sabiya.d@xxxxxx>
> [j-choudhary@xxxxxx: Fix dvi-bridge, dss, mhdp and serdes-refclk]
> Signed-off-by: Jayesh Choudhary <j-choudhary@xxxxxx>
> ---
> arch/arm64/boot/dts/ti/k3-am69-sk.dts | 237 ++++++++++++++++++++++++++
> 1 file changed, 237 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am69-sk.dts b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
> index d282c2c633c1..d9a0794bcf6e 100644
> --- a/arch/arm64/boot/dts/ti/k3-am69-sk.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
> @@ -107,6 +107,83 @@ vdd_sd_dv: regulator-tlv71033 {
> states = <1800000 0x0>,
> <3300000 0x1>;
> };
> +
> + dp0_pwr_3v3: regulator {

To be consistent with the rest of the file please
use regulator-dp0-pwr

> + compatible = "regulator-fixed";
> + regulator-name = "dp0-pwr";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&dp_pwr_en_pins_default>;
> + gpio = <&main_gpio0 4 0>; /* DP0_3V3 _EN */
> + enable-active-high;
> + };
> +
> + dp0: connector {

connector-dp0

> + compatible = "dp-connector";
> + label = "DP0";
> + type = "full-size";
> + dp-pwr-supply = <&dp0_pwr_3v3>;
> +
> + port {
> + dp0_connector_in: endpoint {
> + remote-endpoint = <&dp0_out>;
> + };
> + };
> + };
> +
> + hdmi-connector {

connector-hdmi

> + compatible = "hdmi-connector";
> + label = "hdmi";
> + type = "a";
> +
> + pinctrl-names = "default";
> + pinctrl-0 = <&hdmi_hpd_pins_default>;
> +
> + ddc-i2c-bus = <&mcu_i2c1>;
> +
> + /* HDMI_HPD */
> + hpd-gpios = <&main_gpio0 0 GPIO_ACTIVE_HIGH>;
> +
> + port {
> + hdmi_connector_in: endpoint {
> + remote-endpoint = <&tfp410_out>;
> + };
> + };
> + };
> +
> + dvi-bridge {

Although DT binding doc for ti,tfp410 says encoder
a name starting with bridge maybe more appropriate.

> + compatible = "ti,tfp410";
> +
> + pinctrl-names = "default";
> + pinctrl-0 = <&hdmi_pdn_pins_default>;
> +
> + /* HDMI_PDn */
> + powerdown-gpios = <&wkup_gpio0 14 GPIO_ACTIVE_LOW>;
> + ti,deskew = <0>;
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> +
> + tfp410_in: endpoint {
> + remote-endpoint = <&dpi1_out0>;
> + pclk-sample = <1>;
> + };
> + };
> +
> + port@1 {
> + reg = <1>;
> +
> + tfp410_out: endpoint {
> + remote-endpoint = <&hdmi_connector_in>;
> + };
> + };
> + };
> + };
> };
>
> &main_pmx0 {
> @@ -161,6 +238,57 @@ J784S4_IOPAD(0x008, PIN_INPUT, 7) /* (AJ33) MCAN12_RX.GPIO0_2 */
> J784S4_IOPAD(0x004, PIN_INPUT, 7) /* (AG36) MCAN12_TX.GPIO0_1 */
> >;
> };
> +
> + dp0_pins_default: dp0-pins-default {
> + pinctrl-single,pins = <
> + J784S4_IOPAD(0x014, PIN_INPUT, 13) /* (AG33) MCAN14_TX.DP0_HPD */
> + >;
> + };
> +
> + dp_pwr_en_pins_default: dp-pwr-en-pins-default {
> + pinctrl-single,pins = <
> + J784S4_IOPAD(0x010, PIN_INPUT, 7) /* (AH33) MCAN13_RX.GPIO0_4 */
> + >;
> + };
> +
> + dss_vout0_pins_default: dss-vout0-pins-default {
> + pinctrl-single,pins = <
> + J784S4_IOPAD(0x074, PIN_OUTPUT, 2) /* (AC33) MCAN2_TX.VOUT0_DATA0 */
> + J784S4_IOPAD(0x070, PIN_OUTPUT, 2) /* (AH38) MCAN1_RX.VOUT0_DATA1 */
> + J784S4_IOPAD(0x07c, PIN_OUTPUT, 2) /* (AJ38) MCASP0_AXR3.VOUT0_DATA2 */
> + J784S4_IOPAD(0x068, PIN_OUTPUT, 2) /* (AE38) MCAN0_RX.VOUT0_DATA3 */
> + J784S4_IOPAD(0x064, PIN_OUTPUT, 2) /* (AF38) MCAN0_TX.VOUT0_DATA4 */
> + J784S4_IOPAD(0x060, PIN_OUTPUT, 2) /* (AE36) MCASP2_AXR1.VOUT0_DATA5 */
> + J784S4_IOPAD(0x05c, PIN_OUTPUT, 2) /* (AC36) MCASP2_AXR0.VOUT0_DATA6 */
> + J784S4_IOPAD(0x058, PIN_OUTPUT, 2) /* (AE37) MCASP2_AFSX.VOUT0_DATA7 */
> + J784S4_IOPAD(0x054, PIN_OUTPUT, 2) /* (AD37) MCASP2_ACLKX.VOUT0_DATA8 */
> + J784S4_IOPAD(0x050, PIN_OUTPUT, 2) /* (AC37) MCASP1_AXR2.VOUT0_DATA9 */
> + J784S4_IOPAD(0x04c, PIN_OUTPUT, 2) /* (AC32) MCASP1_AXR1.VOUT0_DATA10 */
> + J784S4_IOPAD(0x048, PIN_OUTPUT, 2) /* (AK33) MCASP0_AXR2.VOUT0_DATA11 */
> + J784S4_IOPAD(0x044, PIN_OUTPUT, 2) /* (AG37) MCASP0_AXR1.VOUT0_DATA12 */
> + J784S4_IOPAD(0x040, PIN_OUTPUT, 2) /* (AF37) MCASP0_AXR0.VOUT0_DATA13 */
> + J784S4_IOPAD(0x03c, PIN_OUTPUT, 2) /* (AK38) MCASP0_AFSX.VOUT0_DATA14 */
> + J784S4_IOPAD(0x038, PIN_OUTPUT, 2) /* (AK35) MCASP0_ACLKX.VOUT0_DATA15 */
> + J784S4_IOPAD(0x0c8, PIN_OUTPUT, 2) /* (AJ32) EXT_REFCLK1.VOUT0_DATA16 */
> + J784S4_IOPAD(0x030, PIN_OUTPUT, 2) /* (AK37) GPIO0_12.VOUT0_DATA17 */
> + J784S4_IOPAD(0x02c, PIN_OUTPUT, 2) /* (AL32) GPIO0_11.VOUT0_DATA18 */
> + J784S4_IOPAD(0x028, PIN_OUTPUT, 2) /* (AE33) MCAN16_RX.VOUT0_DATA19 */
> + J784S4_IOPAD(0x024, PIN_OUTPUT, 2) /* (AH34) MCAN16_TX.VOUT0_DATA20 */
> + J784S4_IOPAD(0x020, PIN_OUTPUT, 2) /* (AJ35) MCAN15_RX.VOUT0_DATA21 */
> + J784S4_IOPAD(0x01c, PIN_OUTPUT, 2) /* (AG34) MCAN15_TX.VOUT0_DATA22 */
> + J784S4_IOPAD(0x018, PIN_OUTPUT, 2) /* (AK36) MCAN14_RX.VOUT0_DATA23 */
> + J784S4_IOPAD(0x084, PIN_OUTPUT, 2) /* (AG38) MCASP0_AXR5.VOUT0_DE */
> + J784S4_IOPAD(0x080, PIN_OUTPUT, 2) /* (AK34) MCASP0_AXR4.VOUT0_HSYNC */
> + J784S4_IOPAD(0x078, PIN_OUTPUT, 2) /* (AH37) MCAN2_RX.VOUT0_PCLK */
> + J784S4_IOPAD(0x088, PIN_OUTPUT, 2) /* (AF36) MCASP0_AXR6.VOUT0_VSYNC */
> + >;
> + };
> +
> + hdmi_hpd_pins_default: hdmi-hpd-pins-default {
> + pinctrl-single,pins = <
> + J784S4_IOPAD(0x000, PIN_INPUT, 7) /* (AN35) EXTINTN.GPIO0_0 */
> + >;
> + };
> };
>
> &wkup_pmx2 {
> @@ -231,6 +359,21 @@ J784S4_WKUP_IOPAD(0x064, PIN_INPUT, 7) /* (J36) WKUP_GPIO0_3 */
> J784S4_WKUP_IOPAD(0x11c, PIN_INPUT, 7) /* (M34) WKUP_GPIO0_67 */
> >;
> };
> +
> + mcu_i2c1_pins_default: mcu-i2c1-pins-default {
> + pinctrl-single,pins = <
> + /* (L35) WKUP_GPIO0_8.MCU_I2C1_SCL */
> + J784S4_WKUP_IOPAD(0x078, PIN_INPUT_PULLUP, 0)
> + /* (L34) WKUP_GPIO0_9.MCU_I2C1_SDA */
> + J784S4_WKUP_IOPAD(0x07c, PIN_INPUT_PULLUP, 0)
> + >;
> + };
> +
> + hdmi_pdn_pins_default: hdmi-pdn-pins-default {
> + pinctrl-single,pins = <
> + J784S4_WKUP_IOPAD(0x090, PIN_INPUT, 7) /* (H37) WKUP_GPIO0_14 */
> + >;
> + };
> };
>
> &wkup_pmx3 {
> @@ -350,3 +493,97 @@ &mcu_cpsw_port1 {
> phy-mode = "rgmii-rxid";
> phy-handle = <&mcu_phy0>;
> };
> +
> +&wkup_gpio_intr {
> + status = "okay";
> +};
> +
> +&mcu_i2c1 {
> + status = "okay";
> + pinctrl-names = "default";
> + pinctrl-0 = <&mcu_i2c1_pins_default>;
> + clock-frequency = <100000>;
> +};
> +
> +&serdes_refclk {
> + status = "okay";
> + clock-frequency = <100000000>;
> +};
> +
> +&dss {
> + status = "okay";
> + pinctrl-names = "default";
> + pinctrl-0 = <&dss_vout0_pins_default>;
> + assigned-clocks = <&k3_clks 218 2>,
> + <&k3_clks 218 5>,
> + <&k3_clks 218 14>,
> + <&k3_clks 218 18>;
> + assigned-clock-parents = <&k3_clks 218 3>,
> + <&k3_clks 218 7>,
> + <&k3_clks 218 16>,
> + <&k3_clks 218 22>;
> +};
> +
> +&serdes_wiz4 {
> + status = "okay";
> +};
> +
> +&serdes4 {
> + status = "okay";
> + serdes4_dp_link: phy@0 {
> + reg = <0>;
> + cdns,num-lanes = <4>;
> + #phy-cells = <0>;
> + cdns,phy-type = <PHY_TYPE_DP>;
> + resets = <&serdes_wiz4 1>, <&serdes_wiz4 2>,
> + <&serdes_wiz4 3>, <&serdes_wiz4 4>;
> + };
> +};
> +
> +&mhdp {
> + status = "okay";
> + pinctrl-names = "default";
> + pinctrl-0 = <&dp0_pins_default>;
> + phys = <&serdes4_dp_link>;
> + phy-names = "dpphy";
> +};
> +
> +&dss_ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + /* DP */
> + port@0 {
> + reg = <0>;
> + dpi0_out: endpoint {
> + remote-endpoint = <&dp0_in>;
> + };
> + };
> +
> + /* HDMI */
> + port@1 {
> + reg = <1>;
> + dpi1_out0: endpoint {
> + remote-endpoint = <&tfp410_in>;
> + };
> + };
> +};
> +
> +&dp0_ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + dp0_in: endpoint {
> + remote-endpoint = <&dpi0_out>;
> + };
> + };
> +
> + port@4 {
> + reg = <4>;
> + dp0_out: endpoint {
> + remote-endpoint = <&dp0_connector_in>;
> + };
> + };
> +};

--
cheers,
-roger