drm/panel-simple: Read panel orientation (5759c967) · Commits · 戴 / test

The panel orientation needs to parsed from a device-tree and assigned to the panel's connector in order to make orientation property available to userspace. That's what this patch does for the panel-simple driver. Signed-off-by:

Dmitry Osipenko <digetx@gmail.com> Signed-off-by:

Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20200813215609.28643-5-digetx@gmail.com

drivers/gpu/drm/panel/panel-simple.c

+11 −0

Original line number	Diff line number	Diff line
		@@ -112,6 +112,8 @@ struct panel_simple {
		struct gpio_desc *hpd_gpio;

		struct drm_display_mode override_mode;

		enum drm_panel_orientation orientation;
		};

		static inline struct panel_simple to_panel_simple(struct drm_panel panel)
		@@ -371,6 +373,9 @@ static int panel_simple_get_modes(struct drm_panel *panel,
		/* add hard-coded panel modes */
		num += panel_simple_get_non_edid_modes(p, connector);

		/* set up connector's "panel orientation" property */
		drm_connector_set_panel_orientation(connector, p->orientation);

		return num;
		}

		@@ -532,6 +537,12 @@ static int panel_simple_probe(struct device dev, const struct panel_desc desc)
		return err;
		}

		err = of_drm_get_panel_orientation(dev->of_node, &panel->orientation);
		if (err) {
		dev_err(dev, "%pOF: failed to get orientation %d\n", dev->of_node, err);
		return err;
		}

		ddc = of_parse_phandle(dev->of_node, "ddc-i2c-bus", 0);
		if (ddc) {
		panel->ddc = of_find_i2c_adapter_by_node(ddc);

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