diff options
Diffstat (limited to 'drivers/gpu/drm/drm_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 080c8d361f1f..75e0beeb3793 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -47,6 +47,26 @@ #include "drm_internal.h" /** + * drm_crtc_from_index - find the registered CRTC at an index + * @dev: DRM device + * @idx: index of registered CRTC to find for + * + * Given a CRTC index, return the registered CRTC from DRM device's + * list of CRTCs with matching index. + */ +struct drm_crtc *drm_crtc_from_index(struct drm_device *dev, int idx) +{ + struct drm_crtc *crtc; + + drm_for_each_crtc(crtc, dev) + if (idx == crtc->index) + return crtc; + + return NULL; +} +EXPORT_SYMBOL(drm_crtc_from_index); + +/** * drm_crtc_force_disable - Forcibly turn off a CRTC * @crtc: CRTC to turn off * |