drm/msm/a6xx: Set GMU CGC properties on a6xx too

This was apparently never done before.. Program the expected values.

This also gets rid of sneakily setting that register through the HWCG
reg list on A690.
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/611098/Signed-off-by: Rob Clark <robdclark@chromium.org>

drivers/gpu/drm/msm/adreno/a6xx_catalog.c

@@ -448,7 +448,6 @@ static const struct adreno_reglist a690_hwcg[] = {
 	{REG_A6XX_RBBM_CLOCK_CNTL_GMU_GX, 0x00000222},
 	{REG_A6XX_RBBM_CLOCK_DELAY_GMU_GX, 0x00000111},
 	{REG_A6XX_RBBM_CLOCK_HYST_GMU_GX, 0x00000555},
-	{REG_A6XX_GPU_GMU_AO_GMU_CGC_MODE_CNTL, 0x20200},
 	{REG_A6XX_GPU_GMU_AO_GMU_CGC_DELAY_CNTL, 0x10111},
 	{REG_A6XX_GPU_GMU_AO_GMU_CGC_HYST_CNTL, 0x5555},
 	{}

drivers/gpu/drm/msm/adreno/a6xx_gpu.c

@@ -402,6 +402,7 @@ static void a6xx_set_hwcg(struct msm_gpu *gpu, bool state)
 	struct a6xx_gmu *gmu = &a6xx_gpu->gmu;
 	const struct adreno_reglist *reg;
 	unsigned int i;
+	u32 cgc_delay, cgc_hyst;
 	u32 val, clock_cntl_on;
 
 	if (!(adreno_gpu->info->a6xx->hwcg || adreno_is_a7xx(adreno_gpu)))
@@ -416,14 +417,15 @@ static void a6xx_set_hwcg(struct msm_gpu *gpu, bool state)
 	else
 		clock_cntl_on = 0x8aa8aa82;
 
-	if (adreno_is_a7xx(adreno_gpu)) {
-		gmu_write(&a6xx_gpu->gmu, REG_A6XX_GPU_GMU_AO_GMU_CGC_MODE_CNTL,
-			  state ? adreno_gpu->info->a6xx->gmu_cgc_mode : 0);
-		gmu_write(&a6xx_gpu->gmu, REG_A6XX_GPU_GMU_AO_GMU_CGC_DELAY_CNTL,
-			  state ? 0x10111 : 0);
-		gmu_write(&a6xx_gpu->gmu, REG_A6XX_GPU_GMU_AO_GMU_CGC_HYST_CNTL,
-			  state ? 0x5555 : 0);
-	}
+	cgc_delay = adreno_is_a615_family(adreno_gpu) ? 0x111 : 0x10111;
+	cgc_hyst = adreno_is_a615_family(adreno_gpu) ? 0x555 : 0x5555;
+
+	gmu_write(&a6xx_gpu->gmu, REG_A6XX_GPU_GMU_AO_GMU_CGC_MODE_CNTL,
+			state ? adreno_gpu->info->a6xx->gmu_cgc_mode : 0);
+	gmu_write(&a6xx_gpu->gmu, REG_A6XX_GPU_GMU_AO_GMU_CGC_DELAY_CNTL,
+			state ? cgc_delay : 0);
+	gmu_write(&a6xx_gpu->gmu, REG_A6XX_GPU_GMU_AO_GMU_CGC_HYST_CNTL,
+			state ? cgc_hyst : 0);
 
 	if (!adreno_gpu->info->a6xx->hwcg) {
 		gpu_write(gpu, REG_A7XX_RBBM_CLOCK_CNTL_GLOBAL, 1);

drivers/gpu/drm/msm/adreno/adreno_gpu.h

@@ -463,7 +463,13 @@ static inline int adreno_is_a610_family(const struct adreno_gpu *gpu)
 	return adreno_is_a610(gpu) || adreno_is_a702(gpu);
 }
 
-/* check for a615, a616, a618, a619 or any a630 derivatives */
+/* TODO: 615/616 */
+static inline int adreno_is_a615_family(const struct adreno_gpu *gpu)
+{
+	return adreno_is_a618(gpu) ||
+	       adreno_is_a619(gpu);
+}
+
 static inline int adreno_is_a630_family(const struct adreno_gpu *gpu)
 {
 	if (WARN_ON_ONCE(!gpu->info))