New helper function to set the preferred video mode. Can be called after drm_add_modes_noedid if you don't want the largest supported video mode be used by default.
Signed-off-by: Gerd Hoffmann kraxel@redhat.com --- drivers/gpu/drm/drm_edid.c | 13 +++++++++++++ include/drm/drm_crtc.h | 2 ++ 2 files changed, 15 insertions(+)
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 1688ff5..a635034 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -3286,6 +3286,19 @@ int drm_add_modes_noedid(struct drm_connector *connector, } EXPORT_SYMBOL(drm_add_modes_noedid);
+void drm_set_preferred_mode(struct drm_connector *connector, + int hpref, int vpref) +{ + struct drm_display_mode *mode; + + list_for_each_entry(mode, &connector->probed_modes, head) { + if (drm_mode_width(mode) == hpref && + drm_mode_height(mode) == vpref) + mode->type |= DRM_MODE_TYPE_PREFERRED; + } +} +EXPORT_SYMBOL(drm_set_preferred_mode); + /** * drm_hdmi_avi_infoframe_from_display_mode() - fill an HDMI AVI infoframe with * data from a DRM display mode diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 24f4995..ec5d737 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -1108,6 +1108,8 @@ extern struct drm_display_mode *drm_gtf_mode_complex(struct drm_device *dev, int GTF_2C, int GTF_K, int GTF_2J); extern int drm_add_modes_noedid(struct drm_connector *connector, int hdisplay, int vdisplay); +extern void drm_set_preferred_mode(struct drm_connector *connector, + int hpref, int vpref);
extern int drm_edid_header_is_valid(const u8 *raw_edid); extern bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid);