diff options
| author | Eric Anholt <eric@anholt.net> | 2016-02-16 10:24:08 -0800 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2016-02-26 17:42:48 -0800 |
| commit | 6a609209865247cc748e90158c99f374f79b494c (patch) | |
| tree | b06088a3162deca662f575da3445c164338a51e1 /drivers/gpu/drm/vc4/vc4_crtc.c | |
| parent | a7c5047d1ce178dd2b1fa577fc8909ad663d56d5 (diff) | |
drm/vc4: Initialize scaler DISPBKGND on modeset.
We weren't updating the interlaced bit, so we'd scan out incorrectly
if the firmware had brought up the TV encoder and we were switching to
HDMI.
Signed-off-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_crtc.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c index 93d53c278486..6ae5abcabe62 100644 --- a/drivers/gpu/drm/vc4/vc4_crtc.c +++ b/drivers/gpu/drm/vc4/vc4_crtc.c @@ -183,6 +183,8 @@ static int vc4_get_clock_select(struct drm_crtc *crtc) static void vc4_crtc_mode_set_nofb(struct drm_crtc *crtc) { + struct drm_device *dev = crtc->dev; + struct vc4_dev *vc4 = to_vc4_dev(dev); struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc); struct drm_crtc_state *state = crtc->state; struct drm_display_mode *mode = &state->adjusted_mode; @@ -251,6 +253,10 @@ static void vc4_crtc_mode_set_nofb(struct drm_crtc *crtc) PV_CONTROL_FIFO_CLR | PV_CONTROL_EN); + HVS_WRITE(SCALER_DISPBKGNDX(vc4_crtc->channel), + SCALER_DISPBKGND_AUTOHS | + (interlace ? SCALER_DISPBKGND_INTERLACE : 0)); + if (debug_dump_regs) { DRM_INFO("CRTC %d regs after:\n", drm_crtc_index(crtc)); vc4_crtc_dump_regs(vc4_crtc); |