drm/msm/dpu: Drop unused get_scaler_ver callback from SSPP

This pointer callback is never used and should be removed.
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
[DB: dropped the helpers completely, which are unused now]
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/570096/
Link: https://lore.kernel.org/r/20231201234234.2065610-3-dmitry.baryshkov@linaro.org

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

@@ -395,15 +395,6 @@ static void _dpu_hw_sspp_setup_scaler3(struct dpu_hw_sspp *ctx,
 			format);
 }
 
-static u32 _dpu_hw_sspp_get_scaler3_ver(struct dpu_hw_sspp *ctx)
-{
-	if (!ctx)
-		return 0;
-
-	return dpu_hw_get_scaler3_ver(&ctx->hw,
-				      ctx->cap->sblk->scaler_blk.base);
-}
-
 /*
  * dpu_hw_sspp_setup_rects()
  */
@@ -616,10 +607,8 @@ static void _setup_layer_ops(struct dpu_hw_sspp *c,
 
 	if (test_bit(DPU_SSPP_SCALER_QSEED3, &features) ||
 			test_bit(DPU_SSPP_SCALER_QSEED3LITE, &features) ||
-			test_bit(DPU_SSPP_SCALER_QSEED4, &features)) {
+			test_bit(DPU_SSPP_SCALER_QSEED4, &features))
 		c->ops.setup_scaler = _dpu_hw_sspp_setup_scaler3;
-		c->ops.get_scaler_ver = _dpu_hw_sspp_get_scaler3_ver;
-	}
 
 	if (test_bit(DPU_SSPP_CDP, &features))
 		c->ops.setup_cdp = dpu_hw_sspp_setup_cdp;

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

@@ -296,12 +296,6 @@ struct dpu_hw_sspp_ops {
 		struct dpu_hw_scaler3_cfg *scaler3_cfg,
 		const struct dpu_format *format);
 
-	/**
-	 * get_scaler_ver - get scaler h/w version
-	 * @ctx: Pointer to pipe context
-	 */
-	u32 (*get_scaler_ver)(struct dpu_hw_sspp *ctx);
-
 	/**
 	 * setup_cdp - setup client driven prefetch
 	 * @pipe: Pointer to software pipe context

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

@@ -381,12 +381,6 @@ void dpu_hw_setup_scaler3(struct dpu_hw_blk_reg_map *c,
 	DPU_REG_WRITE(c, QSEED3_OP_MODE + scaler_offset, op_mode);
 }
 
-u32 dpu_hw_get_scaler3_ver(struct dpu_hw_blk_reg_map *c,
-			u32 scaler_offset)
-{
-	return DPU_REG_READ(c, QSEED3_HW_VERSION + scaler_offset);
-}
-
 void dpu_hw_csc_setup(struct dpu_hw_blk_reg_map *c,
 		u32 csc_reg_off,
 		const struct dpu_csc_cfg *data, bool csc10)

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_util.h

@@ -340,9 +340,6 @@ void dpu_hw_setup_scaler3(struct dpu_hw_blk_reg_map *c,
 		u32 scaler_offset, u32 scaler_version,
 		const struct dpu_format *format);
 
-u32 dpu_hw_get_scaler3_ver(struct dpu_hw_blk_reg_map *c,
-		u32 scaler_offset);
-
 void dpu_hw_csc_setup(struct dpu_hw_blk_reg_map  *c,
 		u32 csc_reg_off,
 		const struct dpu_csc_cfg *data, bool csc10);