diff mbox series

[v11,1/3] drm: panel: Enable prepare_prev_first flag for samsung-s6e panels

Message ID 20221212182923.29155-2-jagan@amarulasolutions.com (mailing list archive)
State Accepted
Commit a91d0e7d00e97ed7acb82cf834c6e04cae0a27d8
Headers show
Series drm: exynos: dsi: Restore the bridge chain | expand

Commit Message

Jagan Teki Dec. 12, 2022, 6:29 p.m. UTC 
Enable the drm panel prepare_prev_first flag so-that the previous
controller should be prepared first before the prepare for the
panel is called.
   
samsung-s6e3ha2, samsung-s6e63j0x03 and samsung-s6e8aa0 are the
effected samsung-s6e panels for this change.
   
This makes sure that the previous controller, likely to be a DSI
host controller should be initialized to LP-11 before the panel
is powered up.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
Changes for v11, v10:
- none

 drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c    | 1 +
 drivers/gpu/drm/panel/panel-samsung-s6e63j0x03.c | 1 +
 drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c    | 1 +
 3 files changed, 3 insertions(+)

Comments

Frieder Schrempf Dec. 14, 2022, 8:48 a.m. UTC | #1 
On 12.12.22 19:29, Jagan Teki wrote:
> Enable the drm panel prepare_prev_first flag so-that the previous
> controller should be prepared first before the prepare for the
> panel is called.
>    
> samsung-s6e3ha2, samsung-s6e63j0x03 and samsung-s6e8aa0 are the
> effected samsung-s6e panels for this change.
>    
> This makes sure that the previous controller, likely to be a DSI
> host controller should be initialized to LP-11 before the panel
> is powered up.
> 
> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>

Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c b/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c
index 5c621b15e84c..1355b2c27932 100644
--- a/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c
+++ b/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c
@@ -731,6 +731,7 @@  static int s6e3ha2_probe(struct mipi_dsi_device *dsi)
 
 	drm_panel_init(&ctx->panel, dev, &s6e3ha2_drm_funcs,
 		       DRM_MODE_CONNECTOR_DSI);
+	ctx->panel.prepare_prev_first = true;
 
 	drm_panel_add(&ctx->panel);
 
diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e63j0x03.c b/drivers/gpu/drm/panel/panel-samsung-s6e63j0x03.c
index e06fd35de814..3223a9d06a50 100644
--- a/drivers/gpu/drm/panel/panel-samsung-s6e63j0x03.c
+++ b/drivers/gpu/drm/panel/panel-samsung-s6e63j0x03.c
@@ -462,6 +462,7 @@  static int s6e63j0x03_probe(struct mipi_dsi_device *dsi)
 
 	drm_panel_init(&ctx->panel, dev, &s6e63j0x03_funcs,
 		       DRM_MODE_CONNECTOR_DSI);
+	ctx->panel.prepare_prev_first = true;
 
 	ctx->bl_dev = backlight_device_register("s6e63j0x03", dev, ctx,
 						&s6e63j0x03_bl_ops, NULL);
diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c b/drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c
index 54213beafaf5..362eb10f10ce 100644
--- a/drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c
+++ b/drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c
@@ -1018,6 +1018,7 @@  static int s6e8aa0_probe(struct mipi_dsi_device *dsi)
 
 	drm_panel_init(&ctx->panel, dev, &s6e8aa0_drm_funcs,
 		       DRM_MODE_CONNECTOR_DSI);
+	ctx->panel.prepare_prev_first = true;
 
 	drm_panel_add(&ctx->panel);