[PATCH v2 08/22] drm/msm/dpu: drop dpu_csc_cfg from dpu_plane

[Dmitry Baryshkov <dmitry.baryshkov@linaro.org>]

Simplify code surrounding CSC table setup by removing struct dpu_csc_cfg
pointer from dpu_plane and getting it directly at the CSC setup time.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.c |  2 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h |  2 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_util.c |  2 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_util.h |  2 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c   | 96 +++++++++++----------
 5 files changed, 54 insertions(+), 50 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.c
index c16832898c51..2be43d5a235a 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.c
@@ -537,7 +537,7 @@ static void dpu_hw_sspp_setup_sourceaddress(struct dpu_hw_pipe *ctx,
 }
 
 static void dpu_hw_sspp_setup_csc(struct dpu_hw_pipe *ctx,
-		struct dpu_csc_cfg *data)
+		const struct dpu_csc_cfg *data)
 {
 	u32 idx;
 	bool csc10 = false;
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h
index 35a848b1fcf8..264a9d0d5fca 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h
@@ -262,7 +262,7 @@ struct dpu_hw_sspp_ops {
 	 * @ctx: Pointer to pipe context
 	 * @data: Pointer to config structure
 	 */
-	void (*setup_csc)(struct dpu_hw_pipe *ctx, struct dpu_csc_cfg *data);
+	void (*setup_csc)(struct dpu_hw_pipe *ctx, const struct dpu_csc_cfg *data);
 
 	/**
 	 * setup_solidfill - enable/disable colorfill
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_util.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_util.c
index f94584c982cd..aad85116b0a0 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_util.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_util.c
@@ -374,7 +374,7 @@ u32 dpu_hw_get_scaler3_ver(struct dpu_hw_blk_reg_map *c,
 
 void dpu_hw_csc_setup(struct dpu_hw_blk_reg_map *c,
 		u32 csc_reg_off,
-		struct dpu_csc_cfg *data, bool csc10)
+		const struct dpu_csc_cfg *data, bool csc10)
 {
 	static const u32 matrix_shift = 7;
 	u32 clamp_shift = csc10 ? 16 : 8;
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_util.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_util.h
index ff3cffde84cd..bc2fdb2b8f5f 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_util.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_util.h
@@ -321,6 +321,6 @@ u32 dpu_hw_get_scaler3_ver(struct dpu_hw_blk_reg_map *c,
 
 void dpu_hw_csc_setup(struct dpu_hw_blk_reg_map  *c,
 		u32 csc_reg_off,
-		struct dpu_csc_cfg *data, bool csc10);
+		const struct dpu_csc_cfg *data, bool csc10);
 
 #endif /* _DPU_HW_UTIL_H */
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
index 46446610e07e..6f856aeaf6bc 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
@@ -90,7 +90,6 @@ enum dpu_plane_qos {
 /*
  * struct dpu_plane - local dpu plane structure
  * @aspace: address space pointer
- * @csc_ptr: Points to dpu_csc_cfg structure to use for current
  * @catalog: Points to dpu catalog structure
  * @revalidate: force revalidation of all the plane properties
  */
@@ -108,8 +107,6 @@ struct dpu_plane {
 	bool is_rt_pipe;
 	struct dpu_mdss_cfg *catalog;
 
-	struct dpu_csc_cfg *csc_ptr;
-
 	const struct dpu_sspp_sub_blks *pipe_sblk;
 
 	/* debugfs related stuff */
@@ -590,51 +587,59 @@ static void _dpu_plane_setup_scaler3(struct dpu_plane *pdpu,
 	scale_cfg->enable = 1;
 }
 
-static void _dpu_plane_setup_csc(struct dpu_plane *pdpu)
-{
-	static const struct dpu_csc_cfg dpu_csc_YUV2RGB_601L = {
-		{
-			/* S15.16 format */
-			0x00012A00, 0x00000000, 0x00019880,
-			0x00012A00, 0xFFFF9B80, 0xFFFF3000,
-			0x00012A00, 0x00020480, 0x00000000,
+static const struct dpu_csc_cfg dpu_csc_YUV2RGB_601L = {
+	{
+		/* S15.16 format */
+		0x00012A00, 0x00000000, 0x00019880,
+		0x00012A00, 0xFFFF9B80, 0xFFFF3000,
+		0x00012A00, 0x00020480, 0x00000000,
+	},
+	/* signed bias */
+	{ 0xfff0, 0xff80, 0xff80,},
+	{ 0x0, 0x0, 0x0,},
+	/* unsigned clamp */
+	{ 0x10, 0xeb, 0x10, 0xf0, 0x10, 0xf0,},
+	{ 0x00, 0xff, 0x00, 0xff, 0x00, 0xff,},
+};
+
+static const struct dpu_csc_cfg dpu_csc10_YUV2RGB_601L = {
+	{
+		/* S15.16 format */
+		0x00012A00, 0x00000000, 0x00019880,
+		0x00012A00, 0xFFFF9B80, 0xFFFF3000,
+		0x00012A00, 0x00020480, 0x00000000,
 		},
-		/* signed bias */
-		{ 0xfff0, 0xff80, 0xff80,},
-		{ 0x0, 0x0, 0x0,},
-		/* unsigned clamp */
-		{ 0x10, 0xeb, 0x10, 0xf0, 0x10, 0xf0,},
-		{ 0x00, 0xff, 0x00, 0xff, 0x00, 0xff,},
-	};
-	static const struct dpu_csc_cfg dpu_csc10_YUV2RGB_601L = {
-		{
-			/* S15.16 format */
-			0x00012A00, 0x00000000, 0x00019880,
-			0x00012A00, 0xFFFF9B80, 0xFFFF3000,
-			0x00012A00, 0x00020480, 0x00000000,
-			},
-		/* signed bias */
-		{ 0xffc0, 0xfe00, 0xfe00,},
-		{ 0x0, 0x0, 0x0,},
-		/* unsigned clamp */
-		{ 0x40, 0x3ac, 0x40, 0x3c0, 0x40, 0x3c0,},
-		{ 0x00, 0x3ff, 0x00, 0x3ff, 0x00, 0x3ff,},
-	};
+	/* signed bias */
+	{ 0xffc0, 0xfe00, 0xfe00,},
+	{ 0x0, 0x0, 0x0,},
+	/* unsigned clamp */
+	{ 0x40, 0x3ac, 0x40, 0x3c0, 0x40, 0x3c0,},
+	{ 0x00, 0x3ff, 0x00, 0x3ff, 0x00, 0x3ff,},
+};
+
+static const struct dpu_csc_cfg *_dpu_plane_get_csc(struct dpu_plane *pdpu, const struct dpu_format *fmt)
+{
+	const struct dpu_csc_cfg *csc_ptr;
 
 	if (!pdpu) {
 		DPU_ERROR("invalid plane\n");
-		return;
+		return NULL;
 	}
 
+	if (!DPU_FORMAT_IS_YUV(fmt))
+		return NULL;
+
 	if (BIT(DPU_SSPP_CSC_10BIT) & pdpu->features)
-		pdpu->csc_ptr = (struct dpu_csc_cfg *)&dpu_csc10_YUV2RGB_601L;
+		csc_ptr = &dpu_csc10_YUV2RGB_601L;
 	else
-		pdpu->csc_ptr = (struct dpu_csc_cfg *)&dpu_csc_YUV2RGB_601L;
+		csc_ptr = &dpu_csc_YUV2RGB_601L;
 
 	DPU_DEBUG_PLANE(pdpu, "using 0x%X 0x%X 0x%X...\n",
-			pdpu->csc_ptr->csc_mv[0],
-			pdpu->csc_ptr->csc_mv[1],
-			pdpu->csc_ptr->csc_mv[2]);
+			csc_ptr->csc_mv[0],
+			csc_ptr->csc_mv[1],
+			csc_ptr->csc_mv[2]);
+
+	return csc_ptr;
 }
 
 static void _dpu_plane_setup_scaler(struct dpu_plane *pdpu,
@@ -1050,8 +1055,13 @@ void dpu_plane_flush(struct drm_plane *plane)
 	else if (pdpu->color_fill & DPU_PLANE_COLOR_FILL_FLAG)
 		/* force 100% alpha */
 		_dpu_plane_color_fill(pdpu, pdpu->color_fill, 0xFF);
-	else if (pdpu->pipe_hw && pdpu->csc_ptr && pdpu->pipe_hw->ops.setup_csc)
-		pdpu->pipe_hw->ops.setup_csc(pdpu->pipe_hw, pdpu->csc_ptr);
+	else if (pdpu->pipe_hw && pdpu->pipe_hw->ops.setup_csc) {
+		const struct dpu_format *fmt = to_dpu_format(msm_framebuffer_format(plane->state->fb));
+		const struct dpu_csc_cfg *csc_ptr = _dpu_plane_get_csc(pdpu, fmt);
+
+		if (csc_ptr)
+			pdpu->pipe_hw->ops.setup_csc(pdpu->pipe_hw, csc_ptr);
+	}
 
 	/* flag h/w flush complete */
 	if (plane->state)
@@ -1167,12 +1177,6 @@ static void dpu_plane_sspp_atomic_update(struct drm_plane *plane)
 
 			pdpu->pipe_hw->ops.setup_cdp(pdpu->pipe_hw, cdp_cfg);
 		}
-
-		/* update csc */
-		if (DPU_FORMAT_IS_YUV(fmt))
-			_dpu_plane_setup_csc(pdpu);
-		else
-			pdpu->csc_ptr = 0;
 	}
 
 	_dpu_plane_set_qos_lut(plane, fb, &pipe_cfg);
-- 
2.30.2