On 10/02/2023 17:28, Neil Armstrong wrote:
On 10/02/2023 16:24, Dmitry Baryshkov wrote:
On 10/02/2023 16:44, Neil Armstrong wrote:
Add the Display Port controller subnode to the MDSS node.
Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/sm8450.dtsi | 79
++++++++++++++++++++++++++++++++++++
1 file changed, 79 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi
b/arch/arm64/boot/dts/qcom/sm8450.dtsi
index 6caa2c8efb46..72d54beb7d7c 100644
--- a/arch/arm64/boot/dts/qcom/sm8450.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8450.dtsi
@@ -2751,6 +2751,13 @@ dpu_intf2_out: endpoint {
};
};
+ port@2 {
+ reg = <2>;
+ dpu_intf0_out: endpoint {
+ remote-endpoint = <&mdss_dp0_in>;
+ };
+ };
+
};
mdp_opp_table: opp-table {
@@ -2783,6 +2790,78 @@ opp-500000000 {
};
};
+ mdss_dp0: displayport-controller@ae90000 {
+ compatible = "qcom,sm8350-dp";
Exact, must fix.
Missing "qcom,sm8450-dp". As I wrote in the comment to patch 1, I'd
suggest having just a single entry here rather than keeping both 8350
and 8450 entries.
+ reg = <0 0xae90000 0 0xfc>,
+ <0 0xae90200 0 0xc0>,
+ <0 0xae90400 0 0x770>,
+ <0 0xae91000 0 0x98>,
+ <0 0xae91400 0 0x98>;
While this sounds correct, usually we used the even size here (0x200,
0x400, etc.). Can we please switch to it (especially since sm8350-dp
uses even sizes).
I don't have access to registers layout for HDK8450 but the system
freezes when using even sizes, using
the exact register size works fine.
Interesting. Could you please trace, what exactly makes it fail, since
specifying bigger region size should not cause such issues.
--
With best wishes
Dmitry
