MDSS, aside from the MDP-MEM path, also requires the CPU-DISP_CFG one. Failing to provide it may result in register accesses failing and that's never good.
Add the missing path. Signed-off-by: Konrad Dybcio <konrad.dyb...@linaro.org> --- arch/arm64/boot/dts/qcom/sc7280.dtsi | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi index 04bf85b0399a..41d327b1f1b6 100644 --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi @@ -15,6 +15,7 @@ #include <dt-bindings/dma/qcom-gpi.h> #include <dt-bindings/firmware/qcom,scm.h> #include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/interconnect/qcom,icc.h> #include <dt-bindings/interconnect/qcom,osm-l3.h> #include <dt-bindings/interconnect/qcom,sc7280.h> #include <dt-bindings/interrupt-controller/arm-gic.h> @@ -3958,8 +3959,12 @@ mdss: display-subsystem@ae00000 { interrupt-controller; #interrupt-cells = <1>; - interconnects = <&mmss_noc MASTER_MDP0 0 &mc_virt SLAVE_EBI1 0>; - interconnect-names = "mdp0-mem"; + interconnects = <&mmss_noc MASTER_MDP0 QCOM_ICC_TAG_ALWAYS + &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>, + <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ALWAYS + &cnoc2 SLAVE_DISPLAY_CFG QCOM_ICC_TAG_ALWAYS>; + interconnect-names = "mdp0-mem", + "cpu-cfg"; iommus = <&apps_smmu 0x900 0x402>; -- 2.43.0