Messages in this thread | | | Subject | Re: [PATCH] drm/mediatek: Only try to attach bridge if there is one | From | CK Hu <> | Date | Mon, 3 Dec 2018 11:27:00 +0800 |
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Hi, Nicolas:
On Mon, 2018-11-26 at 13:30 +0800, CK Hu wrote: > Hi, Nicolas: > > On Mon, 2018-11-26 at 12:07 +0800, Nicolas Boichat wrote: > > Even if dsi->bridge is NULL, we still try to call drm_bridge_attach, > > and print out an error message, before creating the connector. > > > > When no bridge is provided, let's skip these 2 steps and directly > > create the connector. >
Applied to mediatek-drm-fixes-4.20 [1], thanks.
[1] https://github.com/ckhu-mediatek/linux.git-tags/commits/mediatek-drm-fixes-4.20
Regards, CK
> Reviewed-by: CK Hu <ck.hu@mediatek.com> > > > > > Signed-off-by: Nicolas Boichat <drinkcat@chromium.org> > > --- > > drivers/gpu/drm/mediatek/mtk_dsi.c | 11 +++++++---- > > 1 file changed, 7 insertions(+), 4 deletions(-) > > > > diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c > > index 66df1b17795921..27b507eb4a997d 100644 > > --- a/drivers/gpu/drm/mediatek/mtk_dsi.c > > +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c > > @@ -818,10 +818,13 @@ static int mtk_dsi_create_conn_enc(struct drm_device *drm, struct mtk_dsi *dsi) > > dsi->encoder.possible_crtcs = 1; > > > > /* If there's a bridge, attach to it and let it create the connector */ > > - ret = drm_bridge_attach(&dsi->encoder, dsi->bridge, NULL); > > - if (ret) { > > - DRM_ERROR("Failed to attach bridge to drm\n"); > > - > > + if (dsi->bridge) { > > + ret = drm_bridge_attach(&dsi->encoder, dsi->bridge, NULL); > > + if (ret) { > > + DRM_ERROR("Failed to attach bridge to drm\n"); > > + goto err_encoder_cleanup; > > + } > > + } else { > > /* Otherwise create our own connector and attach to a panel */ > > ret = mtk_dsi_create_connector(drm, dsi); > > if (ret) >
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