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Subject[PATCH v1 9/9] arm64: dts: qcom: sm8350-hdk: Enable lt9611uxc dsi-hdmi bridge
Date
The sm8350-hdk ships with the LT9611 UXC DSI/HDMI bridge chip.

In order to toggle the board to enable the HDMI output,
switch #7 & #8 on the rightmost multi-switch package have
to be toggled to On.

Signed-off-by: Robert Foss <robert.foss@linaro.org>
---
arch/arm64/boot/dts/qcom/sm8350-hdk.dts | 106 ++++++++++++++++++++++++
1 file changed, 106 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8350-hdk.dts b/arch/arm64/boot/dts/qcom/sm8350-hdk.dts
index 6e07feb4b3b2..6666b38b58f8 100644
--- a/arch/arm64/boot/dts/qcom/sm8350-hdk.dts
+++ b/arch/arm64/boot/dts/qcom/sm8350-hdk.dts
@@ -20,6 +20,17 @@ chosen {
stdout-path = "serial0:115200n8";
};

+ hdmi-out {
+ compatible = "hdmi-connector";
+ type = "a";
+
+ port {
+ hdmi_con: endpoint {
+ remote-endpoint = <&lt9611_out>;
+ };
+ };
+ };
+
vph_pwr: vph-pwr-regulator {
compatible = "regulator-fixed";
regulator-name = "vph_pwr";
@@ -29,6 +40,32 @@ vph_pwr: vph-pwr-regulator {
regulator-always-on;
regulator-boot-on;
};
+
+ lt9611_1v2: lt9611-1v2 {
+ compatible = "regulator-fixed";
+ regulator-name = "LT9611_1V2";
+
+ vin-supply = <&vph_pwr>;
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ gpio = <&tlmm 49 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ lt9611_3v3: lt9611-3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "LT9611_3V3";
+
+ vin-supply = <&vreg_bob>;
+ gpio = <&tlmm 47 GPIO_ACTIVE_HIGH>;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ enable-active-high;
+ regulator-boot-on;
+ regulator-always-on;
+ };
};

&adsp {
@@ -220,6 +257,15 @@ &dispcc {
&dsi0 {
status = "okay";
vdda-supply = <&vreg_l6b_1p2>;
+
+ ports {
+ port@1 {
+ endpoint {
+ remote-endpoint = <&lt9611_a>;
+ data-lanes = <0 1 2 3>;
+ };
+ };
+ };
};

&dsi0_phy {
@@ -231,6 +277,48 @@ &gpi_dma1 {
status = "okay";
};

+&i2c15 {
+ status = "okay";
+ clock-frequency = <400000>;
+
+ lt9611_codec: hdmi-bridge@2b {
+ compatible = "lontium,lt9611uxc";
+ reg = <0x2b>;
+ status = "okay";
+
+ interrupts-extended = <&tlmm 50 IRQ_TYPE_EDGE_FALLING>;
+ reset-gpios = <&tlmm 48 GPIO_ACTIVE_HIGH>;
+
+ vdd-supply = <&lt9611_1v2>;
+ vcc-supply = <&lt9611_3v3>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&lt9611_irq_pin &lt9611_rst_pin>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ lt9611_a: endpoint {
+ remote-endpoint = <&dsi0_out>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+
+ lt9611_out: endpoint {
+ remote-endpoint = <&hdmi_con>;
+ };
+ };
+
+ };
+ };
+};
+
&mdss {
status = "okay";
};
@@ -248,6 +336,10 @@ &qupv3_id_0 {
status = "okay";
};

+&qupv3_id_2 {
+ status = "okay";
+};
+
&slpi {
status = "okay";
firmware-name = "qcom/sm8350/slpi.mbn";
@@ -544,4 +636,18 @@ usb_hub_enabled_state: usb-hub-enabled-state {
drive-strength = <2>;
output-low;
};
+
+ lt9611_rst_pin: lt9611-rst-state {
+ pins = "gpio48";
+ function = "normal";
+
+ output-high;
+ input-disable;
+ };
+
+ lt9611_irq_pin: lt9611-irq {
+ pins = "gpio50";
+ function = "gpio";
+ bias-disable;
+ };
};
--
2.34.1
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