[PATCH 1/2] drm/amd/display: Reorder detect_edp_sink_caps before link settings read.

[Alex Deucher]

Applied.  Thanks!

Alex

On Thu, Jan 9, 2020 at 1:41 PM Harry Wentland <hwentlan at amd.com> wrote:
>
> On 2020-01-09 10:20 a.m., Mario Kleiner wrote:
> > read_current_link_settings_on_detect() on eDP 1.4+ may use the
> > edp_supported_link_rates table which is set up by
> > detect_edp_sink_caps(), so that function needs to be called first.
> >
> > Signed-off-by: Mario Kleiner <mario.kleiner.de at gmail.com>
> > Cc: Martin Leung <martin.leung at amd.com>
>
> Reviewed-by: Harry Wentland <harry.wentland at amd.com>
>
> This also fixes our assumption that retrieve_link_cap is the first DPCD
> reads we perform during detection.
>
> Harry
>
> > ---
> >  drivers/gpu/drm/amd/display/dc/core/dc_link.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
> > index cef8c1ba9797..5ea4a1675259 100644
> > --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
> > +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
> > @@ -817,8 +817,8 @@ static bool dc_link_detect_helper(struct dc_link *link,
> >               }
> >
> >               case SIGNAL_TYPE_EDP: {
> > -                     read_current_link_settings_on_detect(link);
> >                       detect_edp_sink_caps(link);
> > +                     read_current_link_settings_on_detect(link);
> >                       sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C_OVER_AUX;
> >                       sink_caps.signal = SIGNAL_TYPE_EDP;
> >                       break;
> >
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