drm/simpledrm: Add "panel orientation" property on non-upright mounted LCD panels

Some devices use e.g. a portrait panel in a standard laptop casing made
for landscape panels. efifb calls drm_get_panel_orientation_quirk() and
sets fb_info.fbcon_rotate_hint to make fbcon rotate the console so that
it shows up-right instead of on its side.

When switching to simpledrm the fbcon renders on its side. Call the
drm_connector_set_panel_orientation_with_quirk() helper to add
a "panel orientation" property on devices listed in the quirk table,
to make the fbcon (and aware userspace apps) rotate the image to
display properly.

Cc: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220221220045.11958-1-hdegoede@redhat.com

diff --git a/drivers/gpu/drm/tiny/simpledrm.c b/drivers/gpu/drm/tiny/simpledrm.c
index d191e87a37b574ec5216f01f62afd171be1976ff..f5b8e864a5cd96621b777a939e969f86d4774278 100644 (file)
--- a/drivers/gpu/drm/tiny/simpledrm.c
+++ b/drivers/gpu/drm/tiny/simpledrm.c
@@ -810,6 +810,9 @@ static int simpledrm_device_init_modeset(struct simpledrm_device *sdev)
        if (ret)
                return ret;
        drm_connector_helper_add(connector, &simpledrm_connector_helper_funcs);
+       drm_connector_set_panel_orientation_with_quirk(connector,
+                                                      DRM_MODE_PANEL_ORIENTATION_UNKNOWN,
+                                                      mode->hdisplay, mode->vdisplay);
 
        formats = simpledrm_device_formats(sdev, &nformats);