[PATCH v2] arm64: dts: ti: k3-am62l: Add HDMI & DSI support
Swamil Jain
s-jain1 at ti.com
Thu May 28 06:35:29 PDT 2026
From: Devarsh Thakkar <devarsht at ti.com>
Add DSS, DSI, DPHY, and HDMI bridge nodes to enable DPI-to-HDMI output
on AM62L[1]. The DSS uses parallel DPI interface with pinctrl
configuration to drive an external SiI9022 HDMI bridge.
DSI and DPHY nodes are added but remain disabled, as the AM62L shares a
single video port for DPI and DSI output.
DSI functionality can be enabled via overlays when required.
[1]: https://www.ti.com/product/AM62L
Signed-off-by: Devarsh Thakkar <devarsht at ti.com>
Signed-off-by: Swamil Jain <s-jain1 at ti.com>
---
Changelog:
v1->v2:
- Update the commit message to elaborate more about the patch.
- Add dpi-pinctrl configuration.
- Update the interrupt routing index for HDMI interrupt line
Link to v1: https://lore.kernel.org/all/20260513210942.692269-1-s-jain1@ti.com/
---
arch/arm64/boot/dts/ti/k3-am62l-main.dtsi | 47 +++++++++++
arch/arm64/boot/dts/ti/k3-am62l3-evm.dts | 95 +++++++++++++++++++++++
2 files changed, 142 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am62l-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62l-main.dtsi
index 80615ca1e01a..1d255c9138db 100644
--- a/arch/arm64/boot/dts/ti/k3-am62l-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62l-main.dtsi
@@ -584,4 +584,51 @@ scmi_shmem: sram at 0 {
bootph-all;
};
};
+
+ dss: dss at 30200000 {
+ compatible = "ti,am62l-dss";
+ reg = <0x00 0x30200000 0x00 0x1000>, /* common */
+ <0x00 0x30202000 0x00 0x1000>, /* vidl1 */
+ <0x00 0x30207000 0x00 0x1000>, /* ovr1 */
+ <0x00 0x3020a000 0x00 0x1000>, /* vp1 */
+ <0x00 0x30201000 0x00 0x1000>; /* common1 */
+ reg-names = "common", "vidl1", "ovr1", "vp1", "common1";
+ power-domains = <&scmi_pds 39>;
+ clocks = <&scmi_clk 162>,
+ <&scmi_clk 161>;
+ clock-names = "fck", "vp1";
+ interrupts = <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+
+ dss_ports: ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+ };
+
+ dphy_tx0: phy at 301c0000 {
+ compatible = "ti,j721e-dphy";
+ reg = <0x0 0x301c0000 0x0 0x1000>;
+ clocks = <&scmi_clk 348>, <&scmi_clk 343>;
+ clock-names = "psm", "pll_ref";
+ #phy-cells = <0>;
+ power-domains = <&scmi_pds 86>;
+ assigned-clocks = <&scmi_clk 343>;
+ assigned-clock-parents = <&scmi_clk 341>;
+ assigned-clock-rates = <25000000>;
+ status = "disabled";
+ };
+
+ dsi0: dsi at 30500000 {
+ compatible = "ti,j721e-dsi";
+ reg = <0x0 0x30500000 0x0 0x100000>, <0x0 0x30270000 0x0 0x100>;
+ clocks = <&scmi_clk 155>, <&scmi_clk 158>;
+ clock-names = "dsi_p_clk", "dsi_sys_clk";
+ power-domains = <&scmi_pds 38>;
+ interrupt-parent = <&gic500>;
+ interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
+ phys = <&dphy_tx0>;
+ phy-names = "dphy";
+ status = "disabled";
+ };
};
diff --git a/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts b/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts
index a1af4571a815..9b04fa6d2cba 100644
--- a/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts
@@ -119,6 +119,18 @@ vcc_1v8: regulator-3 {
regulator-always-on;
regulator-boot-on;
};
+
+ hdmi0: connector-hdmi {
+ compatible = "hdmi-connector";
+ label = "hdmi";
+ type = "a";
+
+ port {
+ hdmi_connector_in: endpoint {
+ remote-endpoint = <&sii9022_out>;
+ };
+ };
+ };
};
&gpio0 {
@@ -192,6 +204,38 @@ exp2: gpio at 23 {
bootph-all;
};
+ sii9022: bridge-hdmi at 3b {
+ compatible = "sil,sii9022";
+ reg = <0x3b>;
+ interrupt-parent = <&exp1>;
+ interrupts = <20 IRQ_TYPE_EDGE_FALLING>;
+ #sound-dai-cells = <0>;
+ sil,i2s-data-lanes = < 0 >;
+ pinctrl-names = "default";
+ pinctrl-0 = <&dpi_pins_default>;
+ bootph-all;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port at 0 {
+ reg = <0>;
+
+ sii9022_in: endpoint {
+ remote-endpoint = <&dpi_out>;
+ };
+ };
+
+ port at 1 {
+ reg = <1>;
+
+ sii9022_out: endpoint {
+ remote-endpoint = <&hdmi_connector_in>;
+ };
+ };
+ };
+ };
};
&i2c2 {
@@ -221,6 +265,41 @@ usb_con_hs: endpoint {
};
&pmx0 {
+ dpi_pins_default: dpi-default-pins {
+ pinctrl-single,pins = <
+ AM62LX_IOPAD(0x00e4, PIN_OUTPUT, 1) /* (L20) GPMC0_CSn0.VOUT0_VSYNC */
+ AM62LX_IOPAD(0x00dc, PIN_OUTPUT, 1) /* (N21) GPMC0_WPn.VOUT0_HSYNC */
+ AM62LX_IOPAD(0x00e8, PIN_OUTPUT, 1) /* (L19) GPMC0_CSn1.VOUT0_PCLK */
+ AM62LX_IOPAD(0x00e0, PIN_OUTPUT, 1) /* (M21) GPMC0_DIR.VOUT0_DE */
+ AM62LX_IOPAD(0x0078, PIN_OUTPUT, 1) /* (L22) GPMC0_AD0.VOUT0_DATA0 */
+ AM62LX_IOPAD(0x007c, PIN_OUTPUT, 1) /* (L23) GPMC0_AD1.VOUT0_DATA1 */
+ AM62LX_IOPAD(0x0080, PIN_OUTPUT, 1) /* (K22) GPMC0_AD2.VOUT0_DATA2 */
+ AM62LX_IOPAD(0x0084, PIN_OUTPUT, 1) /* (J23) GPMC0_AD3.VOUT0_DATA3 */
+ AM62LX_IOPAD(0x0088, PIN_OUTPUT, 1) /* (K23) GPMC0_AD4.VOUT0_DATA4 */
+ AM62LX_IOPAD(0x008c, PIN_OUTPUT, 1) /* (H22) GPMC0_AD5.VOUT0_DATA5 */
+ AM62LX_IOPAD(0x0090, PIN_OUTPUT, 1) /* (H23) GPMC0_AD6.VOUT0_DATA6 */
+ AM62LX_IOPAD(0x0094, PIN_OUTPUT, 1) /* (J22) GPMC0_AD7.VOUT0_DATA7 */
+ AM62LX_IOPAD(0x0098, PIN_OUTPUT, 1) /* (H19) GPMC0_AD8.VOUT0_DATA8 */
+ AM62LX_IOPAD(0x009c, PIN_OUTPUT, 1) /* (H20) GPMC0_AD9.VOUT0_DATA9 */
+ AM62LX_IOPAD(0x00a0, PIN_OUTPUT, 1) /* (H21) GPMC0_AD10.VOUT0_DATA10 */
+ AM62LX_IOPAD(0x00a4, PIN_OUTPUT, 1) /* (H18) GPMC0_AD11.VOUT0_DATA11 */
+ AM62LX_IOPAD(0x00a8, PIN_OUTPUT, 1) /* (G23) GPMC0_AD12.VOUT0_DATA12 */
+ AM62LX_IOPAD(0x00ac, PIN_OUTPUT, 1) /* (G22) GPMC0_AD13.VOUT0_DATA13 */
+ AM62LX_IOPAD(0x00b0, PIN_OUTPUT, 1) /* (F22) GPMC0_AD14.VOUT0_DATA14 */
+ AM62LX_IOPAD(0x00b4, PIN_OUTPUT, 1) /* (F23) GPMC0_AD15.VOUT0_DATA15 */
+ AM62LX_IOPAD(0x00b8, PIN_OUTPUT, 1) /* (L21) GPMC0_CLK.VOUT0_DATA16 */
+ AM62LX_IOPAD(0x00c0, PIN_OUTPUT, 1) /* (N19) GPMC0_ADVn_ALE.VOUT0_DATA17 */
+ AM62LX_IOPAD(0x00c4, PIN_OUTPUT, 1) /* (N20) GPMC0_OEn_REn.VOUT0_DATA18 */
+ AM62LX_IOPAD(0x00c8, PIN_OUTPUT, 1) /* (M19) GPMC0_WEn.VOUT0_DATA19 */
+ AM62LX_IOPAD(0x00cc, PIN_OUTPUT, 1) /* (P23) GPMC0_BE0n_CLE.VOUT0_DATA20 */
+ AM62LX_IOPAD(0x00d0, PIN_OUTPUT, 1) /* (P22) GPMC0_BE1n.VOUT0_DATA21 */
+ AM62LX_IOPAD(0x00d4, PIN_OUTPUT, 1) /* (N23) GPMC0_WAIT0.VOUT0_DATA22 */
+ AM62LX_IOPAD(0x00d8, PIN_OUTPUT, 1) /* (N22) GPMC0_WAIT1.VOUT0_DATA23 */
+ AM62LX_IOPAD(0x00ec, PIN_OUTPUT, 5) /* (M23) GPMC0_CSn2.VOUT0_EXTPCLKIN */
+ >;
+ bootph-all;
+ };
+
gpio0_ioexp_intr_pins_default: gpio0-ioexp-intr-default-pins {
pinctrl-single,pins = <
AM62LX_IOPAD(0x01b0, PIN_INPUT, 7) /* (B12) SPI0_D1.GPIO0_91 */
@@ -375,6 +454,22 @@ &usb1 {
pinctrl-0 = <&usb1_default_pins>;
};
+&dss {
+ status = "okay";
+ bootph-all;
+};
+
+&dss_ports {
+ /* VP1: DPI Output */
+ port at 0 {
+ reg = <0>;
+
+ dpi_out: endpoint {
+ remote-endpoint = <&sii9022_in>;
+ };
+ };
+};
+
&wkup_uart0 {
pinctrl-0 = <&wkup_uart0_pins_default>;
pinctrl-names = "default";
More information about the linux-arm-kernel
mailing list