Hi Thomas,
On Mon, Apr 12, 2021 at 11:44:05AM +0200, Thomas Zimmermann wrote:
>
>
> Am 17.03.21 um 16:43 schrieb Maxime Ripard:
> > We're going to need to tell whether we want to run with a full or
> > limited range RGB output in multiple places in the code, so let's create
> > a helper that will return whether we need with full range or not.
> >
> > Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>
>
> Acked-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
>
> although with a comments
>
> > ---
> > drivers/gpu/drm/vc4/vc4_hdmi.c | 12 ++++++++++--
> > 1 file changed, 10 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
> > index eee9751009c2..fc545072b173 100644
> > --- a/drivers/gpu/drm/vc4/vc4_hdmi.c
> > +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
> > @@ -95,6 +95,15 @@
> > #define HDMI_14_MAX_TMDS_CLK (340 * 1000 * 1000)
> > +static bool vc4_hdmi_is_full_range_rgb(struct vc4_hdmi *vc4_hdmi,
> > + const struct drm_display_mode *mode)
> > +{
> > + struct vc4_hdmi_encoder *vc4_encoder = &vc4_hdmi->encoder;
> > +
> > + return !vc4_encoder->hdmi_monitor ||
>
> Is this ever being called from non-HDMI code? If not, I'd put an
> drm_WARN_ONCE around this check.
I'm not sure we need to worry about this, it's a static function in the
HDMI controller driver so it can't be called from anywhere else
Maxime
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