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From: Bjorn Andersson <andersson@kernel.org>
Date: Thu, 28 Mar 2024 07:40:04 -0700
Subject: [PATCH v2 5/6] drm/msm/dp: Use function arguments for timing
 configuration
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Message-Id: <20240328-msm-dp-cleanup-v2-5-a5aed9798d32@quicinc.com>
References: <20240328-msm-dp-cleanup-v2-0-a5aed9798d32@quicinc.com>
In-Reply-To: <20240328-msm-dp-cleanup-v2-0-a5aed9798d32@quicinc.com>
To: Rob Clark <robdclark@gmail.com>, 
 Abhinav Kumar <quic_abhinavk@quicinc.com>, 
 Dmitry Baryshkov <dmitry.baryshkov@linaro.org>, Sean Paul <sean@poorly.run>, 
 Marijn Suijten <marijn.suijten@somainline.org>, 
 David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>
Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, 
 freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org, 
 Bjorn Andersson <quic_bjorande@quicinc.com>

From: Bjorn Andersson <quic_bjorande@quicinc.com>

dp_catalog_panel_timing_cfg() takes 4 arguments, which are passed from
the calling function through members of struct dp_catalog.

No state is maintained other than across this call, so switch to
function arguments to clean up the code.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
---
 drivers/gpu/drm/msm/dp/dp_catalog.c | 14 ++++++--------
 drivers/gpu/drm/msm/dp/dp_catalog.h |  7 ++-----
 drivers/gpu/drm/msm/dp/dp_panel.c   | 14 +++++++++-----
 3 files changed, 17 insertions(+), 18 deletions(-)

diff --git a/drivers/gpu/drm/msm/dp/dp_catalog.c b/drivers/gpu/drm/msm/dp/dp_catalog.c
index 295bd4cb72cc..00ad3ebaa5a1 100644
--- a/drivers/gpu/drm/msm/dp/dp_catalog.c
+++ b/drivers/gpu/drm/msm/dp/dp_catalog.c
@@ -880,19 +880,17 @@ u32 dp_catalog_ctrl_read_phy_pattern(struct dp_catalog *dp_catalog)
 }
 
 /* panel related catalog functions */
-int dp_catalog_panel_timing_cfg(struct dp_catalog *dp_catalog)
+int dp_catalog_panel_timing_cfg(struct dp_catalog *dp_catalog, u32 total,
+				u32 sync_start, u32 width_blanking, u32 dp_active)
 {
 	struct dp_catalog_private *catalog = container_of(dp_catalog,
 				struct dp_catalog_private, dp_catalog);
 	u32 reg;
 
-	dp_write_link(catalog, REG_DP_TOTAL_HOR_VER,
-				dp_catalog->total);
-	dp_write_link(catalog, REG_DP_START_HOR_VER_FROM_SYNC,
-				dp_catalog->sync_start);
-	dp_write_link(catalog, REG_DP_HSYNC_VSYNC_WIDTH_POLARITY,
-				dp_catalog->width_blanking);
-	dp_write_link(catalog, REG_DP_ACTIVE_HOR_VER, dp_catalog->dp_active);
+	dp_write_link(catalog, REG_DP_TOTAL_HOR_VER, total);
+	dp_write_link(catalog, REG_DP_START_HOR_VER_FROM_SYNC, sync_start);
+	dp_write_link(catalog, REG_DP_HSYNC_VSYNC_WIDTH_POLARITY, width_blanking);
+	dp_write_link(catalog, REG_DP_ACTIVE_HOR_VER, dp_active);
 
 	reg = dp_read_p0(catalog, MMSS_DP_INTF_CONFIG);
 
diff --git a/drivers/gpu/drm/msm/dp/dp_catalog.h b/drivers/gpu/drm/msm/dp/dp_catalog.h
index 290ef8180c12..a82ab4856b50 100644
--- a/drivers/gpu/drm/msm/dp/dp_catalog.h
+++ b/drivers/gpu/drm/msm/dp/dp_catalog.h
@@ -48,10 +48,6 @@ enum dp_catalog_audio_header_type {
 };
 
 struct dp_catalog {
-	u32 total;
-	u32 sync_start;
-	u32 width_blanking;
-	u32 dp_active;
 	enum dp_catalog_audio_sdp_type sdp_type;
 	enum dp_catalog_audio_header_type sdp_header;
 	u32 audio_data;
@@ -106,7 +102,8 @@ void dp_catalog_ctrl_send_phy_pattern(struct dp_catalog *dp_catalog,
 u32 dp_catalog_ctrl_read_phy_pattern(struct dp_catalog *dp_catalog);
 
 /* DP Panel APIs */
-int dp_catalog_panel_timing_cfg(struct dp_catalog *dp_catalog);
+int dp_catalog_panel_timing_cfg(struct dp_catalog *dp_catalog, u32 total,
+				u32 sync_start, u32 width_blanking, u32 dp_active);
 void dp_catalog_panel_enable_vsc_sdp(struct dp_catalog *dp_catalog, struct dp_sdp *vsc_sdp);
 void dp_catalog_panel_disable_vsc_sdp(struct dp_catalog *dp_catalog);
 void dp_catalog_dump_regs(struct dp_catalog *dp_catalog);
diff --git a/drivers/gpu/drm/msm/dp/dp_panel.c b/drivers/gpu/drm/msm/dp/dp_panel.c
index 8e7069453952..07db8f37cd06 100644
--- a/drivers/gpu/drm/msm/dp/dp_panel.c
+++ b/drivers/gpu/drm/msm/dp/dp_panel.c
@@ -353,6 +353,10 @@ int dp_panel_timing_cfg(struct dp_panel *dp_panel)
 	struct dp_catalog *catalog;
 	struct dp_panel_private *panel;
 	struct drm_display_mode *drm_mode;
+	u32 width_blanking;
+	u32 sync_start;
+	u32 dp_active;
+	u32 total;
 
 	panel = container_of(dp_panel, struct dp_panel_private, dp_panel);
 	catalog = panel->catalog;
@@ -376,13 +380,13 @@ int dp_panel_timing_cfg(struct dp_panel *dp_panel)
 	data <<= 16;
 	data |= total_hor;
 
-	catalog->total = data;
+	total = data;
 
 	data = (drm_mode->vtotal - drm_mode->vsync_start);
 	data <<= 16;
 	data |= (drm_mode->htotal - drm_mode->hsync_start);
 
-	catalog->sync_start = data;
+	sync_start = data;
 
 	data = drm_mode->vsync_end - drm_mode->vsync_start;
 	data <<= 16;
@@ -390,15 +394,15 @@ int dp_panel_timing_cfg(struct dp_panel *dp_panel)
 	data |= drm_mode->hsync_end - drm_mode->hsync_start;
 	data |= (panel->dp_panel.dp_mode.h_active_low << 15);
 
-	catalog->width_blanking = data;
+	width_blanking = data;
 
 	data = drm_mode->vdisplay;
 	data <<= 16;
 	data |= drm_mode->hdisplay;
 
-	catalog->dp_active = data;
+	dp_active = data;
 
-	dp_catalog_panel_timing_cfg(catalog);
+	dp_catalog_panel_timing_cfg(catalog, total, sync_start, width_blanking, dp_active);
 
 	if (dp_panel->dp_mode.out_fmt_is_yuv_420)
 		dp_panel_setup_vsc_sdp_yuv_420(dp_panel);

-- 
2.43.0