arm64: dts: ti: k3-am62a7-sk: Add HDMI support

The DSS outputs DPI signals via its second video port (VP2). The DPI
output from DSS is 24 bits (RGB888) and is forwarded to an HDMI
transmitter (SIL9022) on the board.

Add pinmux info for DSS DPI output.

Add DT nodes for SIL9022 HDMI transmitter (TX), and the HDMI connector
on the AM62A7-SK platforms.

Additionally, connect the output of DSS (VP2) with input of the HDMI TX,
and the output of HDMI TX to the input of the HDMI connector.

Signed-off-by: Aradhya Bhatia <a-bhatia1@ti.com>
Link: https://lore.kernel.org/r/20240201125452.1920623-3-a-bhatia1@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>

diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
index 7b71425862958b31b5455ad75d199378a633bfa4..c9eb2a9aef39fdae5d0c268def83b04afb3216f3 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
@@ -132,6 +132,18 @@
                clock-frequency = <12288000>;
        };
 
+       hdmi0: connector-hdmi {
+               compatible = "hdmi-connector";
+               label = "hdmi";
+               type = "a";
+
+               port {
+                       hdmi_connector_in: endpoint {
+                               remote-endpoint = <&sii9022_out>;
+                       };
+               };
+       };
+
        codec_audio: sound {
                compatible = "simple-audio-card";
                simple-audio-card,name = "AM62Ax-SKEVM";
@@ -181,6 +193,39 @@
 };
 
 &main_pmx0 {
+       main_dss0_pins_default: main-dss0-default-pins {
+               pinctrl-single,pins = <
+                       AM62AX_IOPAD(0x100, PIN_OUTPUT, 0) /* (V17) VOUT0_VSYNC */
+                       AM62AX_IOPAD(0x0f8, PIN_OUTPUT, 0) /* (T18) VOUT0_HSYNC */
+                       AM62AX_IOPAD(0x104, PIN_OUTPUT, 0) /* (AA22) VOUT0_PCLK */
+                       AM62AX_IOPAD(0x0fc, PIN_OUTPUT, 0) /* (U17) VOUT0_DE */
+                       AM62AX_IOPAD(0x0b8, PIN_OUTPUT, 0) /* (U22) VOUT0_DATA0 */
+                       AM62AX_IOPAD(0x0bc, PIN_OUTPUT, 0) /* (U21) VOUT0_DATA1 */
+                       AM62AX_IOPAD(0x0c0, PIN_OUTPUT, 0) /* (U20) VOUT0_DATA2 */
+                       AM62AX_IOPAD(0x0c4, PIN_OUTPUT, 0) /* (U19) VOUT0_DATA3 */
+                       AM62AX_IOPAD(0x0c8, PIN_OUTPUT, 0) /* (T19) VOUT0_DATA4 */
+                       AM62AX_IOPAD(0x0cc, PIN_OUTPUT, 0) /* (U18) VOUT0_DATA5 */
+                       AM62AX_IOPAD(0x0d0, PIN_OUTPUT, 0) /* (V22) VOUT0_DATA6 */
+                       AM62AX_IOPAD(0x0d4, PIN_OUTPUT, 0) /* (V21) VOUT0_DATA7 */
+                       AM62AX_IOPAD(0x0d8, PIN_OUTPUT, 0) /* (V19) VOUT0_DATA8 */
+                       AM62AX_IOPAD(0x0dc, PIN_OUTPUT, 0) /* (V18) VOUT0_DATA9 */
+                       AM62AX_IOPAD(0x0e0, PIN_OUTPUT, 0) /* (W22) VOUT0_DATA10 */
+                       AM62AX_IOPAD(0x0e4, PIN_OUTPUT, 0) /* (W21) VOUT0_DATA11 */
+                       AM62AX_IOPAD(0x0e8, PIN_OUTPUT, 0) /* (W20) VOUT0_DATA12 */
+                       AM62AX_IOPAD(0x0ec, PIN_OUTPUT, 0) /* (W19) VOUT0_DATA13 */
+                       AM62AX_IOPAD(0x0f0, PIN_OUTPUT, 0) /* (Y21) VOUT0_DATA14 */
+                       AM62AX_IOPAD(0x0f4, PIN_OUTPUT, 0) /* (Y22) VOUT0_DATA15 */
+                       AM62AX_IOPAD(0x05c, PIN_OUTPUT, 1) /* (P22) GPMC0_AD8.VOUT0_DATA16 */
+                       AM62AX_IOPAD(0x060, PIN_OUTPUT, 1) /* (R19) GPMC0_AD9.VOUT0_DATA17 */
+                       AM62AX_IOPAD(0x064, PIN_OUTPUT, 1) /* (R20) GPMC0_AD10.VOUT0_DATA18 */
+                       AM62AX_IOPAD(0x068, PIN_OUTPUT, 1) /* (R22) GPMC0_AD11.VOUT0_DATA19 */
+                       AM62AX_IOPAD(0x06c, PIN_OUTPUT, 1) /* (T22) GPMC0_AD12.VOUT0_DATA20 */
+                       AM62AX_IOPAD(0x070, PIN_OUTPUT, 1) /* (R21) GPMC0_AD13.VOUT0_DATA21 */
+                       AM62AX_IOPAD(0x074, PIN_OUTPUT, 1) /* (T20) GPMC0_AD14.VOUT0_DATA22 */
+                       AM62AX_IOPAD(0x078, PIN_OUTPUT, 1) /* (T21) GPMC0_AD15.VOUT0_DATA23 */
+               >;
+       };
+
        main_uart0_pins_default: main-uart0-default-pins {
                pinctrl-single,pins = <
                        AM62AX_IOPAD(0x1c8, PIN_INPUT, 0) /* (E14) UART0_RXD */
@@ -466,6 +511,36 @@
                                  "CSI_EN", "AUTO_100M_1000M_CONFIG",
                                  "CSI_VLDO_SEL", "SoC_WLAN_SDIO_RST";
        };
+
+       sii9022: bridge-hdmi@3b {
+               compatible = "sil,sii9022";
+               reg = <0x3b>;
+               interrupt-parent = <&exp1>;
+               interrupts = <16 IRQ_TYPE_EDGE_FALLING>;
+               #sound-dai-cells = <0>;
+               sil,i2s-data-lanes = < 0 >;
+
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       port@0 {
+                               reg = <0>;
+
+                               sii9022_in: endpoint {
+                                       remote-endpoint = <&dpi1_out>;
+                               };
+                       };
+
+                       port@1 {
+                               reg = <1>;
+
+                               sii9022_out: endpoint {
+                                       remote-endpoint = <&hdmi_connector_in>;
+                               };
+                       };
+               };
+       };
 };
 
 &main_i2c2 {
@@ -583,3 +658,20 @@
        tx-num-evt = <32>;
        rx-num-evt = <32>;
 };
+
+&dss {
+       status = "okay";
+       pinctrl-names = "default";
+       pinctrl-0 = <&main_dss0_pins_default>;
+};
+
+&dss_ports {
+       /* VP2: DPI Output */
+       port@1 {
+               reg = <1>;
+
+               dpi1_out: endpoint {
+                       remote-endpoint = <&sii9022_in>;
+               };
+       };
+};