Commit c50c2d2d authored by Tomi Valkeinen's avatar Tomi Valkeinen
Browse files

drm/panel: panel-dsi-cm: set column & page at setup 



Set the column & page address once during setup, instead of relying the
DSI host driver to set those.

Signed-off-by: default avatarTomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: default avatarSam Ravnborg <sam@ravnborg.org>
Reviewed-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: default avatarSebastian Reichel <sebastian.reichel@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201215104657.802264-61-tomi.valkeinen@ti.com
parent 443dae09

drivers/gpu/drm/panel/panel-dsi-cm.c

+20 −0
Original line number Diff line number Diff line
@@ -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;