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drm/panel: lvds: Read panel orientation

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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 generic LVDS panel.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200813215609.28643-4-digetx@gmail.com
This commit is contained in:
Dmitry Osipenko 2020-08-14 00:56:08 +03:00 committed by Sam Ravnborg
parent 4a135d5441
commit 58310c2ec9
1 changed files with 9 additions and 0 deletions
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9
drivers/gpu/drm/panel/panel-lvds.c
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@ -37,6 +37,8 @@ struct panel_lvds {
struct gpio_desc *enable_gpio;
struct gpio_desc *reset_gpio;
enum drm_panel_orientation orientation;
};
static inline struct panel_lvds *to_panel_lvds(struct drm_panel *panel)
@ -99,6 +101,7 @@ static int panel_lvds_get_modes(struct drm_panel *panel,
connector->display_info.bus_flags = lvds->data_mirror
? DRM_BUS_FLAG_DATA_LSB_TO_MSB
: DRM_BUS_FLAG_DATA_MSB_TO_LSB;
drm_connector_set_panel_orientation(connector, lvds->orientation);
return 1;
}
@ -116,6 +119,12 @@ static int panel_lvds_parse_dt(struct panel_lvds *lvds)
const char *mapping;
int ret;
ret = of_drm_get_panel_orientation(np, &lvds->orientation);
if (ret < 0) {
dev_err(lvds->dev, "%pOF: failed to get orientation %d\n", np, ret);
return ret;
}
ret = of_get_display_timing(np, "panel-timing", &timing);
if (ret < 0) {
dev_err(lvds->dev, "%pOF: problems parsing panel-timing (%d)\n",