Re: [PATCH] arm64: dts: qcom: sa8775p: add DisplayPort device node
From: Soutrik Mukhopadhyay
Date: Mon Oct 07 2024 - 06:46:40 EST
On 9/16/2024 7:31 PM, Dmitry Baryshkov wrote:
On Mon, Sep 16, 2024 at 02:43:44PM GMT, Soutrik Mukhopadhyay wrote:
Add device tree node for the DisplayPort controller
and eDP PHY found on the Qualcomm SA8775P SoC.
Not quite. You are also enabling it for the RIDE platforms, not just the
SA8775p SoC.
Sure , we will update this accordingly in the next version.
Signed-off-by: Soutrik Mukhopadhyay <quic_mukhopad@xxxxxxxxxxx>
---
This patch depends on following series:
https://lore.kernel.org/all/20240816-sa8775p-mm-v3-v1-0-77d53c3c0cef@xxxxxxxxxxx/
https://lore.kernel.org/all/20240912071437.1708969-1-quic_mahap@xxxxxxxxxxx/
https://lore.kernel.org/all/20240913103755.7290-1-quic_mukhopad@xxxxxxxxxxx/
Also please provide mdss_dp1 device nodes, you have documented them in
the patch "drm/msm/dp: Add DisplayPort controller for SA8775P"
Sure, we will include both the mdss_dp0 and mdss_dp1 device nodes, as
per the
documentation, in the next version.
---
arch/arm64/boot/dts/qcom/sa8775p-ride.dtsi | 23 +++++
arch/arm64/boot/dts/qcom/sa8775p.dtsi | 114 ++++++++++++++++++++-
2 files changed, 136 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/qcom/sa8775p-ride.dtsi b/arch/arm64/boot/dts/qcom/sa8775p-ride.dtsi
index 0c1b21def4b6..728b4cda8353 100644
--- a/arch/arm64/boot/dts/qcom/sa8775p-ride.dtsi
+++ b/arch/arm64/boot/dts/qcom/sa8775p-ride.dtsi
@@ -421,6 +421,23 @@
status = "okay";
};
+&mdss0 {
+ status = "okay";
+};
+
+&mdss0_dp0 {
+ status = "okay";
+};
+
+&mdss0_dp0_out {
+ data-lanes = <0 1 2 3>;
+ link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
+};
+
+&mdss0_edp_phy0 {
+ status = "okay";
+};
+
&pmm8654au_0_gpios {
gpio-line-names = "DS_EN",
"POFF_COMPLETE",
@@ -527,6 +544,12 @@
};
&tlmm {
+ dp_hot_plug_det: dp-hot-plug-det-state {
+ pins = "gpio101";
+ function = "edp0_hot";
+ bias-disable;
+ };
+
ethernet0_default: ethernet0-default-state {
ethernet0_mdc: ethernet0-mdc-pins {
pins = "gpio8";
diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
index 7747965e7e46..a04150c29565 100644
--- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi
+++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
@@ -3339,6 +3339,18 @@
interrupt-parent = <&mdss0>;
interrupts = <0>;
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dpu_intf0_out: endpoint {
+ remote-endpoint = <&mdss0_dp0_in>;
+ };
+ };
+ };
+
mdss0_mdp_opp_table: opp-table {
compatible = "operating-points-v2";
@@ -3363,6 +3375,106 @@
};
};
};
+
+ mdss0_edp_phy0: phy@aec2a00 {
+ compatible = "qcom,sa8775p-edp-phy";
+
+ reg = <0x0 0xaec2a00 0x0 0x200>,
+ <0x0 0xaec2200 0x0 0xd0>,
+ <0x0 0xaec2600 0x0 0xd0>,
+ <0x0 0xaec2000 0x0 0x1c8>;
Please ident on the angle bracket.
Sure, we will update this in the next version.
+
+ clocks = <&rpmhcc RPMH_CXO_CLK>,
It it really CXO?
Sure, we will address the necessary clock changes for both "aux" and
"cfg_ahb"
in the next version.
+ <&gcc GCC_EDP_REF_CLKREF_EN>;
And this isn't cfg_ahb.
+ clock-names = "aux",
+ "cfg_ahb";
+
+ vdda-phy-supply = <&vreg_l1c>;
+ vdda-pll-supply = <&vreg_l4a>;
regulators are not a part of the SoC
Sure, we will move the regulators to a different file where all the
board specific changes
are a part of, in the next version.
+ #clock-cells = <1>;
+ #phy-cells = <0>;
+
+ status = "disabled";
+ };
+
+ mdss0_dp0: displayport-controller@af54000 {
+ compatible = "qcom,sa8775p-dp";
+
+ pinctrl-0 = <&dp_hot_plug_det>;
+ pinctrl-names = "default";
+
+ reg = <0x0 0xaf54000 0x0 0x104>,
+ <0x0 0xaf54200 0x0 0x0c0>,
+ <0x0 0xaf55000 0x0 0x770>,
+ <0x0 0xaf56000 0x0 0x09c>;
Wrong indentation.
Sure, we will update with the correct indentation at all places in the
next version.
+
+ interrupt-parent = <&mdss0>;
+ interrupts = <12>;
+
+ clocks = <&dispcc0 MDSS_DISP_CC_MDSS_AHB_CLK>,
+ <&dispcc0 MDSS_DISP_CC_MDSS_DPTX0_AUX_CLK>,
+ <&dispcc0 MDSS_DISP_CC_MDSS_DPTX0_LINK_CLK>,
+ <&dispcc0 MDSS_DISP_CC_MDSS_DPTX0_LINK_INTF_CLK>,
+ <&dispcc0 MDSS_DISP_CC_MDSS_DPTX0_PIXEL0_CLK>;
+ clock-names = "core_iface",
+ "core_aux",
+ "ctrl_link",
+ "ctrl_link_iface",
+ "stream_pixel";
And here.
+ assigned-clocks = <&dispcc0 MDSS_DISP_CC_MDSS_DPTX0_LINK_CLK_SRC>,
+ <&dispcc0 MDSS_DISP_CC_MDSS_DPTX0_PIXEL0_CLK_SRC>;
+ assigned-clock-parents = <&mdss0_edp_phy0 0>, <&mdss0_edp_phy0 1>;
+ phys = <&mdss0_edp_phy0>;
+ phy-names = "dp";
+
+ operating-points-v2 = <&dp_opp_table>;
+ power-domains = <&rpmhpd SA8775P_MMCX>;
+
+ #sound-dai-cells = <0>;
+
+ status = "disabled";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ mdss0_dp0_in: endpoint {
+ remote-endpoint = <&dpu_intf0_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ mdss0_dp0_out: endpoint { };
+ };
+ };
+
+ dp_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-160000000 {
+ opp-hz = /bits/ 64 <160000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+
+ opp-270000000 {
+ opp-hz = /bits/ 64 <270000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ };
+
+ opp-540000000 {
+ opp-hz = /bits/ 64 <540000000>;
+ required-opps = <&rpmhpd_opp_svs_l1>;
+ };
+
+ opp-810000000 {
+ opp-hz = /bits/ 64 <810000000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ };
+ };
+ };
};
dispcc0: clock-controller@af00000 {
@@ -3372,7 +3484,7 @@
<&rpmhcc RPMH_CXO_CLK>,
<&rpmhcc RPMH_CXO_CLK_A>,
<&sleep_clk>,
- <0>, <0>, <0>, <0>,
+ <&mdss0_edp_phy0 0>, <&mdss0_edp_phy0 1>, <0>, <0>,
<0>, <0>, <0>, <0>;
power-domains = <&rpmhpd SA8775P_MMCX>;
#clock-cells = <1>;
--
2.17.1