[PATCH 03/21] drm/msm/dsi: pass the right width to dsc

[Jun Nie]

Data width for dsc engine is aligned with pipe, not with whole screen
width. Because the width may be halved in DSI bonded case.

The dsc width is not related to the timing with back front porch in
later stage, so update dsc timing earlier.

Signed-off-by: Jun Nie <jun.nie at linaro.org>
---
 drivers/gpu/drm/msm/dsi/dsi_host.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 7a4d9c071be5a..5abade8f26b88 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -953,7 +953,7 @@ static void dsi_timing_setup(struct msm_dsi_host *msm_host, bool is_bonded_dsi)
 			return;
 		}
 
-		dsc->pic_width = mode->hdisplay;
+		dsc->pic_width = hdisplay;
 		dsc->pic_height = mode->vdisplay;
 		DBG("Mode %dx%d\n", dsc->pic_width, dsc->pic_height);
 
@@ -964,6 +964,11 @@ static void dsi_timing_setup(struct msm_dsi_host *msm_host, bool is_bonded_dsi)
 		if (ret)
 			return;
 
+		if (msm_host->mode_flags & MIPI_DSI_MODE_VIDEO)
+			dsi_update_dsc_timing(msm_host, false, hdisplay);
+		else
+			dsi_update_dsc_timing(msm_host, true, hdisplay);
+
 		/*
 		 * DPU sends 3 bytes per pclk cycle to DSI. If widebus is
 		 * enabled, bus width is extended to 6 bytes.
@@ -990,9 +995,6 @@ static void dsi_timing_setup(struct msm_dsi_host *msm_host, bool is_bonded_dsi)
 	}
 
 	if (msm_host->mode_flags & MIPI_DSI_MODE_VIDEO) {
-		if (msm_host->dsc)
-			dsi_update_dsc_timing(msm_host, false, mode->hdisplay);
-
 		dsi_write(msm_host, REG_DSI_ACTIVE_H,
 			DSI_ACTIVE_H_START(ha_start) |
 			DSI_ACTIVE_H_END(ha_end));
@@ -1011,9 +1013,6 @@ static void dsi_timing_setup(struct msm_dsi_host *msm_host, bool is_bonded_dsi)
 			DSI_ACTIVE_VSYNC_VPOS_START(vs_start) |
 			DSI_ACTIVE_VSYNC_VPOS_END(vs_end));
 	} else {		/* command mode */
-		if (msm_host->dsc)
-			dsi_update_dsc_timing(msm_host, true, mode->hdisplay);
-
 		/* image data and 1 byte write_memory_start cmd */
 		if (!msm_host->dsc)
 			wc = hdisplay * mipi_dsi_pixel_format_to_bpp(msm_host->format) / 8 + 1;

-- 
2.34.1