drm: rcar-du: Fix the DU register setting for Hsync

[platform/adaptation/renesas_rcar/renesas_kernel.git] / drivers / gpu / drm / rcar-du / rcar_du_crtc.c

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
index 4b4b4a7..59a7586 100644 (file)
--- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
@@ -106,7 +106,7 @@ static void rcar_du_crtc_set_display_timing(struct rcar_du_crtc *rcrtc)
        value = ((mode->flags & DRM_MODE_FLAG_PVSYNC) ? 0 : DSMR_VSL)
              | ((mode->flags & DRM_MODE_FLAG_PHSYNC) ? 0 : DSMR_HSL)
              | DSMR_DIPM_DE;
-       rcar_du_crtc_write(rcrtc, DSMR, value);
+       rcar_du_crtc_write(rcrtc, DSMR, value | DSMR_CSPM);
 
        /* Display timings */
        rcar_du_crtc_write(rcrtc, HDSR, mode->htotal - mode->hsync_start - 19);