[PATCH RFC 10/11] ARM: dts: qcom: msm8974: add HDMI nodes
Brian Masney
masneyb at onstation.org
Thu Aug 15 00:48:53 UTC 2019
Add HDMI tx and phy nodes to support an external display that can be
connected over the SlimPort. This is based on work from Jonathan Marek.
Signed-off-by: Brian Masney <masneyb at onstation.org>
---
The hdmi-tx node in the downstream MSM sources:
https://github.com/AICP/kernel_lge_hammerhead/blob/n7.1/arch/arm/boot/dts/msm8974-mdss.dtsi#L101
arch/arm/boot/dts/qcom-msm8974.dtsi | 80 +++++++++++++++++++++++++++++
1 file changed, 80 insertions(+)
diff --git a/arch/arm/boot/dts/qcom-msm8974.dtsi b/arch/arm/boot/dts/qcom-msm8974.dtsi
index 369e58f64145..35c51336a9d4 100644
--- a/arch/arm/boot/dts/qcom-msm8974.dtsi
+++ b/arch/arm/boot/dts/qcom-msm8974.dtsi
@@ -1139,6 +1139,13 @@
port at 0 {
reg = <0>;
+ mdp5_intf3_out: endpoint {
+ remote-endpoint = <&hdmi_in>;
+ };
+ };
+
+ port at 1 {
+ reg = <1>;
mdp5_intf1_out: endpoint {
remote-endpoint = <&dsi0_in>;
};
@@ -1216,6 +1223,79 @@
clocks = <&mmcc MDSS_AHB_CLK>;
clock-names = "iface";
};
+
+ hdmi: hdmi-tx at fd922100 {
+ status = "disabled";
+
+ compatible = "qcom,hdmi-tx-8974";
+ reg = <0xfd922100 0x35c>,
+ <0xfc4b8000 0x60f0>;
+ reg-names = "core_physical",
+ "qfprom_physical";
+
+ interrupt-parent = <&mdss>;
+ interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
+
+ power-domains = <&mmcc MDSS_GDSC>;
+
+ clocks = <&mmcc MDSS_MDP_CLK>,
+ <&mmcc MDSS_AHB_CLK>,
+ <&mmcc MDSS_HDMI_CLK>,
+ <&mmcc MDSS_HDMI_AHB_CLK>,
+ <&mmcc MDSS_EXTPCLK_CLK>;
+ clock-names = "mdp_core",
+ "iface",
+ "core",
+ "alt_iface",
+ "extp";
+
+ hpd-5v-supply = <&pm8941_5vs2>;
+ core-vdda-supply = <&pm8941_l12>;
+ core-vcc-supply = <&pm8941_s3>;
+
+ /*
+ * FIXME - drivers/gpu/drm/msm/hdmi/hdmi.c via hpd_reg_names_8x74
+ * looks for hpd-gdsc-supply. What should be used here? Shouldn't
+ * this functionality be provided by the power-domains above?
+ */
+
+ phys = <&hdmi_phy>;
+ phy-names = "hdmi_phy";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port at 0 {
+ reg = <0>;
+ hdmi_in: endpoint {
+ remote-endpoint = <&mdp5_intf3_out>;
+ };
+ };
+
+ port at 1 {
+ reg = <1>;
+ };
+ };
+ };
+
+ hdmi_phy: hdmi-phy at fd922500 {
+ status = "disabled";
+
+ compatible = "qcom,hdmi-phy-8974";
+ reg = <0xfd922500 0x7c>;
+ reg-names = "hdmi_phy";
+
+ clocks = <&mmcc MDSS_AHB_CLK>,
+ <&mmcc MDSS_HDMI_AHB_CLK>;
+ clock-names = "iface",
+ "alt_iface";
+
+ core-vdda-supply = <&pm8941_l12>;
+ vddio-supply = <&pm8941_s3>;
+
+ #phy-cells = <0>;
+ };
};
};
--
2.21.0
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