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| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2020-12-15 13:46:33 +0300 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2020-12-15 17:17:30 +0300 |
| commit | c50c2d2d8d0c0e49098802a9e76487bf2ec8b822 (patch) | |
| tree | 2d06f2409faac6245fa94c3ca2b61ab139ee214b /drivers/gpu/drm/panel | |
| parent | 443dae0958661e073aada6ee9db1aa4780ad4c2c (diff) | |
| download | linux-c50c2d2d8d0c0e49098802a9e76487bf2ec8b822.tar.xz | |
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: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201215104657.802264-61-tomi.valkeinen@ti.com
Diffstat (limited to 'drivers/gpu/drm/panel')
| -rw-r--r-- | drivers/gpu/drm/panel/panel-dsi-cm.c | 20 |
1 files changed, 20 insertions, 0 deletions
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; |