drm/msm/dpu: remove GC and IGC related code from dpu catalog

Gamma Correction (GC) and Inverse Gamma Correction(IGC) is
currently unused. In addition dpu_dspp_sub_blks didn't even have an igc
member describing the block.

Drop related code from the dpu hardware catalog otherwise this becomes a
burden to carry across chipsets in the catalog.

changes in v3:
	- drop IGC related code from dpu_hw_catalog too
	- update commit text accordingly
Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Patchwork: https://patchwork.freedesktop.org/patch/534725/
Link: https://lore.kernel.org/r/20230428223646.23595-3-quic_abhinavk@quicinc.comSigned-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

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

@@ -91,7 +91,7 @@
 
 #define MERGE_3D_SM8150_MASK (0)
 
-#define DSPP_MSM8998_MASK BIT(DPU_DSPP_PCC) | BIT(DPU_DSPP_GC)
+#define DSPP_MSM8998_MASK BIT(DPU_DSPP_PCC)
 
 #define DSPP_SC7180_MASK BIT(DPU_DSPP_PCC)
 
@@ -449,8 +449,6 @@ static const struct dpu_lm_sub_blks qcm2290_lm_sblk = {
 static const struct dpu_dspp_sub_blks msm8998_dspp_sblk = {
 	.pcc = {.id = DPU_DSPP_PCC, .base = 0x1700,
 		.len = 0x90, .version = 0x10007},
-	.gc = { .id = DPU_DSPP_GC, .base = 0x17c0,
-		.len = 0x90, .version = 0x10007},
 };
 
 static const struct dpu_dspp_sub_blks sc7180_dspp_sblk = {

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

@@ -127,13 +127,9 @@ enum {
 /**
  * DSPP sub-blocks
  * @DPU_DSPP_PCC             Panel color correction block
- * @DPU_DSPP_GC              Gamma correction block
- * @DPU_DSPP_IGC             Inverse gamma correction block
  */
 enum {
 	DPU_DSPP_PCC = 0x1,
-	DPU_DSPP_GC,
-	DPU_DSPP_IGC,
 	DPU_DSPP_MAX
 };
 
@@ -398,7 +394,6 @@ struct dpu_caps {
  * @hsic:
  * @memcolor:
  * @pcc_blk:
- * @igc_blk:
  * @format_list: Pointer to list of supported formats
  * @num_formats: Number of supported formats
  * @virt_format_list: Pointer to list of supported formats for virtual planes
@@ -419,7 +414,6 @@ struct dpu_sspp_sub_blks {
 	struct dpu_pp_blk hsic_blk;
 	struct dpu_pp_blk memcolor_blk;
 	struct dpu_pp_blk pcc_blk;
-	struct dpu_pp_blk igc_blk;
 
 	const u32 *format_list;
 	u32 num_formats;
@@ -433,22 +427,18 @@ struct dpu_sspp_sub_blks {
  * @maxwidth:               Max pixel width supported by this mixer
  * @maxblendstages:         Max number of blend-stages supported
  * @blendstage_base:        Blend-stage register base offset
- * @gc: gamma correction block
  */
 struct dpu_lm_sub_blks {
 	u32 maxwidth;
 	u32 maxblendstages;
 	u32 blendstage_base[MAX_BLOCKS];
-	struct dpu_pp_blk gc;
 };
 
 /**
  * struct dpu_dspp_sub_blks: Information of DSPP block
- * @gc : gamma correction block
  * @pcc: pixel color correction block
  */
 struct dpu_dspp_sub_blks {
-	struct dpu_pp_blk gc;
 	struct dpu_pp_blk pcc;
 };