drm/msm/dpu: access QSEED registers directly

Stop using _sspp_subblk_offset() to get offset of the scaler_blk. Inline
this function and use ctx->cap->sblk->scaler_blk.base directly.
Reviewed-by: Jeykumar Sankaran <quic_jeykumar@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Patchwork: https://patchwork.freedesktop.org/patch/534746/
Link: https://lore.kernel.org/r/20230429012353.2569481-3-dmitry.baryshkov@linaro.orgSigned-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.c

@@ -149,11 +149,6 @@ static int _sspp_subblk_offset(struct dpu_hw_sspp *ctx,
 	sblk = ctx->cap->sblk;
 
 	switch (s_id) {
-	case DPU_SSPP_SCALER_QSEED2:
-	case DPU_SSPP_SCALER_QSEED3:
-	case DPU_SSPP_SCALER_RGB:
-		*idx = sblk->scaler_blk.base;
-		break;
 	case DPU_SSPP_CSC:
 	case DPU_SSPP_CSC_10BIT:
 		*idx = sblk->csc_blk.base;
@@ -195,22 +190,21 @@ static void dpu_hw_sspp_setup_multirect(struct dpu_sw_pipe *pipe)
 static void _sspp_setup_opmode(struct dpu_hw_sspp *ctx,
 		u32 mask, u8 en)
 {
-	u32 idx;
+	const struct dpu_sspp_sub_blks *sblk = ctx->cap->sblk;
 	u32 opmode;
 
 	if (!test_bit(DPU_SSPP_SCALER_QSEED2, &ctx->cap->features) ||
-		_sspp_subblk_offset(ctx, DPU_SSPP_SCALER_QSEED2, &idx) ||
 		!test_bit(DPU_SSPP_CSC, &ctx->cap->features))
 		return;
 
-	opmode = DPU_REG_READ(&ctx->hw, SSPP_VIG_OP_MODE + idx);
+	opmode = DPU_REG_READ(&ctx->hw, sblk->scaler_blk.base + SSPP_VIG_OP_MODE);
 
 	if (en)
 		opmode |= mask;
 	else
 		opmode &= ~mask;
 
-	DPU_REG_WRITE(&ctx->hw, SSPP_VIG_OP_MODE + idx, opmode);
+	DPU_REG_WRITE(&ctx->hw, sblk->scaler_blk.base + SSPP_VIG_OP_MODE, opmode);
 }
 
 static void _sspp_setup_csc10_opmode(struct dpu_hw_sspp *ctx,
@@ -416,25 +410,22 @@ static void _dpu_hw_sspp_setup_scaler3(struct dpu_hw_sspp *ctx,
 		struct dpu_hw_scaler3_cfg *scaler3_cfg,
 		const struct dpu_format *format)
 {
-	u32 idx;
-
-	if (_sspp_subblk_offset(ctx, DPU_SSPP_SCALER_QSEED3, &idx)
-		|| !scaler3_cfg)
+	if (!ctx || !scaler3_cfg)
 		return;
 
-	dpu_hw_setup_scaler3(&ctx->hw, scaler3_cfg, idx,
+	dpu_hw_setup_scaler3(&ctx->hw, scaler3_cfg,
+			ctx->cap->sblk->scaler_blk.base,
 			ctx->cap->sblk->scaler_blk.version,
 			format);
 }
 
 static u32 _dpu_hw_sspp_get_scaler3_ver(struct dpu_hw_sspp *ctx)
 {
-	u32 idx;
-
-	if (!ctx || _sspp_subblk_offset(ctx, DPU_SSPP_SCALER_QSEED3, &idx))
+	if (!ctx)
 		return 0;
 
-	return dpu_hw_get_scaler3_ver(&ctx->hw, idx);
+	return dpu_hw_get_scaler3_ver(&ctx->hw,
+				      ctx->cap->sblk->scaler_blk.base);
 }
 
 /*