Commit 1eae88fa authored by Konrad Dybcio's avatar Konrad Dybcio Committed by Neil Armstrong
Browse files

drm/panel: nt36523: Get orientation from OF 



Some bright vendors mount their display panels upside down. Add the
required pieces to allow for accounting for that.

Reviewed-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Reviewed-by: default avatarJianhua Lu <lujianhua000@gmail.com>
Signed-off-by: default avatarKonrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: default avatarNeil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230412-topic-lenovopanel-v3-3-bcf9ba4de46f@linaro.org
parent aecb583c

drivers/gpu/drm/panel/panel-novatek-nt36523.c

+15 −0
Original line number Diff line number Diff line
@@ -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)
@@ -785,6 +794,12 @@ 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))