diff options
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_kms.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_kms.c b/drivers/gpu/drm/vc4/vc4_kms.c index 0c6a5197d376..ffd54aab7759 100644 --- a/drivers/gpu/drm/vc4/vc4_kms.c +++ b/drivers/gpu/drm/vc4/vc4_kms.c @@ -290,6 +290,10 @@ static void vc5_hvs_pv_muxing_commit(struct vc4_dev *vc4, switch (vc4_crtc->data->hvs_output) { case 2: + drm_WARN_ON(&vc4->base, + VC4_GET_FIELD(HVS_READ(SCALER_DISPCTRL), + SCALER_DISPCTRL_DSP3_MUX) == channel); + mux = (channel == 2) ? 0 : 1; reg = HVS_READ(SCALER_DISPECTRL); HVS_WRITE(SCALER_DISPECTRL, |