diff options
| author | Pantelis Antoniou <panto@antoniou-consulting.com> | 2013-06-21 13:52:28 -0500 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2013-06-28 09:13:00 +1000 |
| commit | c19b3e238d7573cbe0bb60f4578b7d1de4a13746 (patch) | |
| tree | b3a1768de236aefb951b6cae2e8c8402541b455a /drivers/gpu/drm/tilcdc | |
| parent | 39de6194131c155901f96686a063212656d80c2e (diff) | |
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 <panto@antoniou-consulting.com>
Signed-off-by: Darren Etheridge <detheridge@ti.com>
Acked-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/tilcdc')
| -rw-r--r-- | drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c index 43120fa3b6e9..7418dcd986d3 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; |