On Wed, Apr 12, 2023 at 09:46:01PM +0200, Konrad Dybcio wrote:
> Some bright vendors mount their display panels upside down. Add the
> required pieces to allow for accounting for that.
>
> Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
Reviewed-by: Jianhua Lu <lujianhua000@xxxxxxxxx>
> ---
> drivers/gpu/drm/panel/panel-novatek-nt36523.c | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
>
> diff --git a/drivers/gpu/drm/panel/panel-novatek-nt36523.c b/drivers/gpu/drm/panel/panel-novatek-nt36523.c
> index 3c81ec014eef..db4b4af13ec1 100644
> --- a/drivers/gpu/drm/panel/panel-novatek-nt36523.c
> +++ b/drivers/gpu/drm/panel/panel-novatek-nt36523.c
> @@ -31,6 +31,7 @@ struct panel_info {
> struct drm_panel panel;
> struct mipi_dsi_device *dsi[2];
> const struct panel_desc *desc;
> + enum drm_panel_orientation orientation;
>
> struct gpio_desc *reset_gpio;
> struct backlight_device *backlight;
> @@ -674,11 +675,19 @@ static int nt36523_get_modes(struct drm_panel *panel,
> return pinfo->desc->num_modes;
> }
>
> +static enum drm_panel_orientation nt36523_get_orientation(struct drm_panel *panel)
> +{
> + struct panel_info *pinfo = to_panel_info(panel);
> +
> + return pinfo->orientation;
> +}
> +
> static const struct drm_panel_funcs nt36523_panel_funcs = {
> .disable = nt36523_disable,
> .prepare = nt36523_prepare,
> .unprepare = nt36523_unprepare,
> .get_modes = nt36523_get_modes,
> + .get_orientation = nt36523_get_orientation,
> };
>
> static int nt36523_bl_update_status(struct backlight_device *bl)
> @@ -784,6 +793,12 @@ static int nt36523_probe(struct mipi_dsi_device *dsi)
> mipi_dsi_set_drvdata(dsi, pinfo);
> drm_panel_init(&pinfo->panel, dev, &nt36523_panel_funcs, DRM_MODE_CONNECTOR_DSI);
>
> + ret = of_drm_get_panel_orientation(dev->of_node, &pinfo->orientation);
> + if (ret < 0) {
> + dev_err(dev, "%pOF: failed to get orientation %d\n", dev->of_node, ret);
> + return ret;
> + }
> +
> if (pinfo->desc->has_dcs_backlight) {
> pinfo->panel.backlight = nt36523_create_backlight(dsi);
> if (IS_ERR(pinfo->panel.backlight))
>
> --
> 2.40.0
>
