Set the column & page address once during setup, instead of relying the
DSI host driver to set those.
Signed-off-by: Tomi Valkeinen <tomi.valkei...@ti.com>
Reviewed-by: Sam Ravnborg <s...@ravnborg.org>
Reviewed-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
Reviewed-by: Sebastian Reichel <sebastian.reic...@collabora.com>
---
drivers/gpu/drm/panel/panel-dsi-cm.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/drivers/gpu/drm/panel/panel-dsi-cm.c
b/drivers/gpu/drm/panel/panel-dsi-cm.c
index c2e702172df2..067745fb682f 100644
--- a/drivers/gpu/drm/panel/panel-dsi-cm.c
+++ b/drivers/gpu/drm/panel/panel-dsi-cm.c
@@ -170,6 +170,22 @@ static int dsicm_get_id(struct panel_drv_data *ddata, u8
*id1, u8 *id2, u8 *id3)
return 0;
}
+static int dsicm_set_update_window(struct panel_drv_data *ddata)
+{
+ struct mipi_dsi_device *dsi = ddata->dsi;
+ int r;
+
+ r = mipi_dsi_dcs_set_column_address(dsi, 0, ddata->mode.hdisplay - 1);
+ if (r < 0)
+ return r;
+
+ r = mipi_dsi_dcs_set_page_address(dsi, 0, ddata->mode.vdisplay - 1);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
static int dsicm_bl_update_status(struct backlight_device *dev)
{
struct panel_drv_data *ddata = dev_get_drvdata(&dev->dev);
@@ -307,6 +323,10 @@ static int dsicm_power_on(struct panel_drv_data *ddata)
if (r)
goto err;
+ r = dsicm_set_update_window(ddata);
+ if (r)
+ goto err;
+
r = mipi_dsi_dcs_set_display_on(ddata->dsi);
if (r)
goto err;
--
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