mtk_disp_mutex_get  578 drivers/gpu/drm/mediatek/mtk_drm_crtc.c 	mtk_crtc->mutex = mtk_disp_mutex_get(priv->mutex_dev, pipe);
mtk_disp_mutex_get   22 drivers/gpu/drm/mediatek/mtk_drm_ddp.h struct mtk_disp_mutex *mtk_disp_mutex_get(struct device *dev, unsigned int id);