Re: [PATCH v4 11/11] arm64: dts: qcom: sm8350-hdk: Enable lt9611uxc dsi-hdmi bridge

[Jessica Zhang]

On 12/30/2022 7:35 AM, Robert Foss wrote:

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.f...@linaro.org>

Reviewed-by: Jessica Zhang <quic_jessz...@quicinc.com>
Tested-by: Jessica Zhang <quic_jessz...@quicinc.com> #SM8350 (HDK)

---
  arch/arm64/boot/dts/qcom/sm8350-hdk.dts | 105 ++++++++++++++++++++++++
  1 file changed, 105 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8350-hdk.dts 
b/arch/arm64/boot/dts/qcom/sm8350-hdk.dts
index 1961f941ff83..6b21897c92dc 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-connector {

+               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 +40,31 @@ vph_pwr: vph-pwr-regulator {
                regulator-always-on;
                regulator-boot-on;
        };
+
+       lt9611_1v2: lt9611-1v2-regulator {
+               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;
+       };
+
+       lt9611_3v3: lt9611-3v3-regulator {
+               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 +256,15 @@ &dispcc {
  &mdss_dsi0 {
        vdda-supply = <&vreg_l6b_1p2>;
        status = "okay";
+
+       ports {
+               port@1 {
+                       endpoint {
+                               remote-endpoint = <&lt9611_a>;
+                               data-lanes = <0 1 2 3>;
+                       };
+               };
+       };
  };

&mdss_dsi0_phy {

@@ -231,6 +276,46 @@ &gpi_dma1 {
        status = "okay";
  };

+&i2c15 {

+       clock-frequency = <400000>;
+       status = "okay";
+
+       lt9611_codec: hdmi-bridge@2b {
+               compatible = "lontium,lt9611uxc";
+               reg = <0x2b>;
+
+               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_state>;
+
+               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 +333,10 @@ &qupv3_id_0 {
        status = "okay";
  };

+&qupv3_id_2 {

+       status = "okay";
+};
+
  &slpi {
        status = "okay";
        firmware-name = "qcom/sm8350/slpi.mbn";
@@ -544,4 +633,20 @@ usb_hub_enabled_state: usb-hub-enabled-state {
                drive-strength = <2>;
                output-low;
        };
+
+       lt9611_state: lt9611-state {
+               rst {
+                       pins = "gpio48";
+                       function = "normal";
+
+                       output-high;
+                       input-disable;
+               };
+
+               irq {
+                       pins = "gpio50";
+                       function = "gpio";
+                       bias-disable;
+               };
+       };
  };
--
2.34.1