diff options
| author | Abhinav Kumar <quic_abhinavk@quicinc.com> | 2022-05-13 15:59:59 -0700 |
|---|---|---|
| committer | Abhinav Kumar <quic_abhinavk@quicinc.com> | 2022-05-18 15:43:08 -0700 |
| commit | e67dcecda06f279cf40b2ab696ca70305b3ba6df (patch) | |
| tree | b9c126eeeac22936a8b02971276745ed1da8acca /drivers/gpu | |
| parent | 947a844bb3ebff0f4736d244d792ce129f6700d7 (diff) | |
| download | linux-e67dcecda06f279cf40b2ab696ca70305b3ba6df.tar.gz linux-e67dcecda06f279cf40b2ab696ca70305b3ba6df.tar.bz2 linux-e67dcecda06f279cf40b2ab696ca70305b3ba6df.zip | |
drm/msm/dpu: limit writeback modes according to max_linewidth
Writeback modes were being added according to mode_config.max_width
but this is assigned to double of max_mixer_width.
For compositors/clients using a single SSPP, this will fail
the dpu_plane's atomic check as it checks for max_linewidth.
Limit writeback modes according to max_linewidth to allow
even compositors/clients which use only a single SSPP to
use writeback.
Fixes: 77b001acdcfeb ("drm/msm/dpu: add the writeback connector layer")
Reported-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Tested-by: Jessica Zhang <quic_jesszhan@quicinc.com> # Trogdor (SC8170)
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/486176/
Link: https://lore.kernel.org/r/20220513225959.19004-1-quic_abhinavk@quicinc.com
Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c index 7620ffe55779..399115e4e217 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c @@ -8,8 +8,10 @@ static int dpu_wb_conn_get_modes(struct drm_connector *connector) { struct drm_device *dev = connector->dev; + struct msm_drm_private *priv = dev->dev_private; + struct dpu_kms *dpu_kms = to_dpu_kms(priv->kms); - return drm_add_modes_noedid(connector, dev->mode_config.max_width, + return drm_add_modes_noedid(connector, dpu_kms->catalog->caps->max_linewidth, dev->mode_config.max_height); } |