drm/tilcdc: Restore old dpms state in pm_resume()

[platform/kernel/linux-rpi.git] / drivers / gpu / drm / tilcdc / tilcdc_crtc.c

diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
index 107c8bd..1601428 100644 (file)
--- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
@@ -246,6 +246,13 @@ void tilcdc_crtc_dpms(struct drm_crtc *crtc, int mode)
        }
 }
 
+int tilcdc_crtc_current_dpms_state(struct drm_crtc *crtc)
+{
+       struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc);
+
+       return tilcdc_crtc->dpms;
+}
+
 static bool tilcdc_crtc_mode_fixup(struct drm_crtc *crtc,
                const struct drm_display_mode *mode,
                struct drm_display_mode *adjusted_mode)