diff options
Diffstat (limited to 'drivers/gpu/drm/drm_modes.c')
| -rw-r--r-- | drivers/gpu/drm/drm_modes.c | 30 |
1 files changed, 23 insertions, 7 deletions
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c index fb8e46b4e8b..b7adb4a967f 100644 --- a/drivers/gpu/drm/drm_modes.c +++ b/drivers/gpu/drm/drm_modes.c @@ -686,8 +686,6 @@ void drm_mode_set_crtcinfo(struct drm_display_mode *p, int adjust_flags) p->crtc_vsync_end /= 2; p->crtc_vtotal /= 2; } - - p->crtc_vtotal |= 1; } if (p->flags & DRM_MODE_FLAG_DBLSCAN) { @@ -716,6 +714,27 @@ EXPORT_SYMBOL(drm_mode_set_crtcinfo); /** + * drm_mode_copy - copy the mode + * @dst: mode to overwrite + * @src: mode to copy + * + * LOCKING: + * None. + * + * Copy an existing mode into another mode, preserving the object id + * of the destination mode. + */ +void drm_mode_copy(struct drm_display_mode *dst, const struct drm_display_mode *src) +{ + int id = dst->base.id; + + *dst = *src; + dst->base.id = id; + INIT_LIST_HEAD(&dst->head); +} +EXPORT_SYMBOL(drm_mode_copy); + +/** * drm_mode_duplicate - allocate and duplicate an existing mode * @m: mode to duplicate * @@ -729,16 +748,13 @@ struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev, const struct drm_display_mode *mode) { struct drm_display_mode *nmode; - int new_id; nmode = drm_mode_create(dev); if (!nmode) return NULL; - new_id = nmode->base.id; - *nmode = *mode; - nmode->base.id = new_id; - INIT_LIST_HEAD(&nmode->head); + drm_mode_copy(nmode, mode); + return nmode; } EXPORT_SYMBOL(drm_mode_duplicate); |