arm64: dts: qcom: sm8150: Add GPU speedbin support

SM8150 has (at least) two GPU speed bins. With the support added on the
driver side, wire up bin detection in the DTS to restrict lower-quality
SKUs from running at frequencies they were not validated at.

Tested-by: Marijn Suijten <marijn.suijten@somainline.org> # On Sony Xperia 5 (speed bin 0x3)
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230331-topic-konahana_speedbin-v3-4-2dede22dd7f7@linaro.org

diff --git a/arch/arm64/boot/dts/qcom/sm8150.dtsi b/arch/arm64/boot/dts/qcom/sm8150.dtsi
index 39e43a46bb30faf9df9f971f6d0d88574febfbd4..2273fa57198842ef4c700ea464bd24ed9fbde9bb 100644 (file)
--- a/arch/arm64/boot/dts/qcom/sm8150.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8150.dtsi
@@ -950,6 +950,17 @@
                        status = "disabled";
                };
 
+               qfprom: efuse@784000 {
+                       compatible = "qcom,sm8150-qfprom", "qcom,qfprom";
+                       reg = <0 0x00784000 0 0x8ff>;
+                       #address-cells = <1>;
+                       #size-cells = <1>;
+
+                       gpu_speed_bin: gpu_speed_bin@133 {
+                               reg = <0x133 0x1>;
+                               bits = <5 3>;
+                       };
+               };
 
                qupv3_id_0: geniqup@8c0000 {
                        compatible = "qcom,geni-se-qup";
@@ -2165,44 +2176,52 @@
 
                        qcom,gmu = <&gmu>;
 
+                       nvmem-cells = <&gpu_speed_bin>;
+                       nvmem-cell-names = "speed_bin";
+
                        status = "disabled";
 
                        zap-shader {
                                memory-region = <&gpu_mem>;
                        };
 
-                       /* note: downstream checks gpu binning for 675 Mhz */
                        gpu_opp_table: opp-table {
                                compatible = "operating-points-v2";
 
                                opp-675000000 {
                                        opp-hz = /bits/ 64 <675000000>;
                                        opp-level = <RPMH_REGULATOR_LEVEL_NOM_L1>;
+                                       opp-supported-hw = <0x2>;
                                };
 
                                opp-585000000 {
                                        opp-hz = /bits/ 64 <585000000>;
                                        opp-level = <RPMH_REGULATOR_LEVEL_NOM>;
+                                       opp-supported-hw = <0x3>;
                                };
 
                                opp-499200000 {
                                        opp-hz = /bits/ 64 <499200000>;
                                        opp-level = <RPMH_REGULATOR_LEVEL_SVS_L2>;
+                                       opp-supported-hw = <0x3>;
                                };
 
                                opp-427000000 {
                                        opp-hz = /bits/ 64 <427000000>;
                                        opp-level = <RPMH_REGULATOR_LEVEL_SVS_L1>;
+                                       opp-supported-hw = <0x3>;
                                };
 
                                opp-345000000 {
                                        opp-hz = /bits/ 64 <345000000>;
                                        opp-level = <RPMH_REGULATOR_LEVEL_SVS>;
+                                       opp-supported-hw = <0x3>;
                                };
 
                                opp-257000000 {
                                        opp-hz = /bits/ 64 <257000000>;
                                        opp-level = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
+                                       opp-supported-hw = <0x3>;
                                };
                        };
                };