From c19b3e238d7573cbe0bb60f4578b7d1de4a13746 Mon Sep 17 00:00:00 2001 From: Pantelis Antoniou Date: Fri, 21 Jun 2013 13:52:28 -0500 Subject: [PATCH] drm/tilcdc: Clear bits of register we're going to set. Bits weren't cleared so resolution changes didn't work. Signed-off-by: Pantelis Antoniou Signed-off-by: Darren Etheridge Acked-by: Rob Clark Signed-off-by: Dave Airlie --- drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c index 43120fa..7418dcd 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c @@ -299,6 +299,8 @@ static int tilcdc_crtc_mode_set(struct drm_crtc *crtc, * a value of 0 as 1 */ if (priv->rev == 2) { + /* clear bits we're going to set */ + reg &= ~0x78000033; reg |= ((hfp-1) & 0x300) >> 8; reg |= ((hbp-1) & 0x300) >> 4; reg |= ((hsw-1) & 0x3c0) << 21; -- 2.7.4