drm/msm/a6xx: Add support for A650 speed binning

Add support for matching QFPROM fuse values to get the correct speed bin
on A650 (SM8250) GPUs.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/530043/
Link: https://lore.kernel.org/r/20230331-topic-konahana_speedbin-v3-2-2dede22dd7f7@linaro.org
Signed-off-by: Rob Clark <robdclark@chromium.org>

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index 54f444b..9fb214f 100644 (file)
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -1847,6 +1847,21 @@ static u32 a640_get_speed_bin(u32 fuse)
        return UINT_MAX;
 }
 
+static u32 a650_get_speed_bin(u32 fuse)
+{
+       if (fuse == 0)
+               return 0;
+       else if (fuse == 1)
+               return 1;
+       /* Yep, 2 and 3 are swapped! :/ */
+       else if (fuse == 2)
+               return 3;
+       else if (fuse == 3)
+               return 2;
+
+       return UINT_MAX;
+}
+
 static u32 adreno_7c3_get_speed_bin(u32 fuse)
 {
        if (fuse == 0)
@@ -1875,6 +1890,9 @@ static u32 fuse_to_supp_hw(struct device *dev, struct adreno_rev rev, u32 fuse)
        if (adreno_cmp_rev(ADRENO_REV(6, 4, 0, ANY_ID), rev))
                val = a640_get_speed_bin(fuse);
 
+       if (adreno_cmp_rev(ADRENO_REV(6, 5, 0, ANY_ID), rev))
+               val = a650_get_speed_bin(fuse);
+
        if (val == UINT_MAX) {
                DRM_DEV_ERROR(dev,
                        "missing support for speed-bin: %u. Some OPPs may not be supported by hardware\n",