Quoting mkrishn@codeaurora.org (2021-09-30 04:56:59)

On 2021-08-19 01:27, Stephen Boyd wrote:

quoted

Quoting Krishna Manikandan (2021-08-18 03:27:02)

quoted

diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi

b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 53a21d0..fd7ff1c 100644

--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
+
+                       status = "disabled";
+
+                       mdp: mdp@ae01000 {

display-controller@ae01000

Stephen,
    In the current driver code, there is a substring comparison for "mdp"
in device node name as part of probe sequence. If "mdp" is not present
in the node name, it will
    return an error resulting in probe failure. Can we continue using mdp
as nodename instead of display controller?

Can we fix the driver to not look for node names and look for compatible
strings instead? It took me a minute to find compare_name_mdp() in
drivers/gpu/drm/msm/msm_drv.c to understand what you're talking about.
Perhaps looking for qcom,mdp5 in there will be sufficient instead of
looking at the node name.