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drm/panel-simple: Read panel orientation 

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
This commit is contained in:
Dmitry Osipenko 2020-08-14 00:56:09 +03:00 committed by Sam Ravnborg
parent 58310c2ec9
commit 5759c9674c
1 changed files with 11 additions and 0 deletions
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11
drivers/gpu/drm/panel/panel-simple.c
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@ -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);