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@xxxxxxxxxxx>
Signed-off-by: Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx>
---
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(+)
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);
--
2.25.1
