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SubjectRe: [PATCH v4 8/8] drm/mediatek: Config orientation property if panel provides it
On Tue, Jun 7, 2022 at 3:16 AM Stephen Boyd <swboyd@chromium.org> wrote:
>
> Quoting Hsin-Yi Wang (2022-06-06 08:24:31)
> > diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
> > index d9f10a33e6fa..c56282412bfa 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_dsi.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
> > @@ -822,6 +823,12 @@ static int mtk_dsi_encoder_init(struct drm_device *drm, struct mtk_dsi *dsi)
> > ret = PTR_ERR(dsi->connector);
> > goto err_cleanup_encoder;
> > }
> > +
> > + /* Read panel orientation */
> > + if (dsi->panel)
> > + drm_connector_set_panel_orientation(dsi->connector,
> > + drm_panel_get_orientation(dsi->panel));
> > +
>
> It could be simplified like so?
>
> drm_connector_set_orientation_from_panel(dsi->connector, dsi->panel);
>
> Then the API could get the orientation if the panel pointer is valid.
> Does any code need to use/modify the orientation value besides
> drm_connector_set_panel_orientation()?
>

We can add another function to call
drm_connector_set_orientation_from_panel(), which will be like

void drm_connector_set_orientation_from_panel(connector, panel)
{
if (panel)
drm_connector_set_panel_orientation(connector,drm_panel_get_orientation(panel));
}

Though it's very should but I can add this if this can make the caller
more convenient.

> > drm_connector_attach_encoder(dsi->connector, &dsi->encoder);
> >
> > return 0;

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