On Thu, 2019-02-21 at 21:37 +0200, Ville Syrjälä wrote:
> On Thu, Feb 21, 2019 at 09:27:26PM +0200, Gwan-gyeong Mun wrote:
> > This patch checks a support of YCBCR420 outputs on an encoder
> > level.
> > If the input mode is YCBCR420-only mode then it prepares DP as an
> > YCBCR420
> > output, else it continues with RGB output mode.
> > It set output_format to INTEL_OUTPUT_FORMAT_YCBCR420 in order to
> > using
> > a pipe scaler as RGB to YCbCr 4:4:4.
> >
> > Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@xxxxxxxxx>
> > Reviewed-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
> > ---
> > drivers/gpu/drm/i915/intel_dp.c | 33
> > +++++++++++++++++++++++++++++++++
> > 1 file changed, 33 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/i915/intel_dp.c
> > b/drivers/gpu/drm/i915/intel_dp.c
> > index e1a051c0fbfe..d0bf2102dfc2 100644
> > --- a/drivers/gpu/drm/i915/intel_dp.c
> > +++ b/drivers/gpu/drm/i915/intel_dp.c
> > @@ -2104,6 +2104,31 @@ intel_dp_compute_link_config(struct
> > intel_encoder *encoder,
> > return 0;
> > }
> >
> > +static bool
> > +intel_dp_ycbcr420_config(struct drm_connector *connector,
> > + struct intel_crtc_state *config)
>
> s/config/crtc_state/
>
> Let's try to avoid spreading the naming mess any further.
>
I'll fix the naming mess.
> > +{
> > + struct intel_crtc *intel_crtc = to_intel_crtc(config-
> > >base.crtc);
>
> s/intel_crtc/crtc/ for the same reason.
>
I'll fix the naming.
> > +
> > + if (!connector->ycbcr_420_allowed) {
> > + DRM_ERROR("Platform doesn't support YCBCR420
> > output\n");
> > + return false;
> > + }
> > +
> > + config->output_format = INTEL_OUTPUT_FORMAT_YCBCR420;
> > +
> > + /* YCBCR 420 output conversion needs a scaler */
> > + if (skl_update_scaler_crtc(config)) {
> > + DRM_DEBUG_KMS("Scaler allocation for output failed\n");
> > + return false;
> > + }
> > +
> > + intel_pch_panel_fitting(intel_crtc, config,
> > + DRM_MODE_SCALE_FULLSCREEN);
> > +
> > + return true;
> > +}
> > +
> > int
> > intel_dp_compute_config(struct intel_encoder *encoder,
> > struct intel_crtc_state *pipe_config,
> > @@ -2121,6 +2146,7 @@ intel_dp_compute_config(struct intel_encoder
> > *encoder,
> > bool constant_n = drm_dp_has_quirk(&intel_dp->desc,
> > DP_DPCD_QUIRK_CONSTANT_N);
> > int ret;
> > + struct drm_connector *connector = conn_state->connector;
> >
> > if (HAS_PCH_SPLIT(dev_priv) && !HAS_DDI(dev_priv) && port !=
> > PORT_A)
> > pipe_config->has_pch_encoder = true;
> > @@ -2129,6 +2155,13 @@ intel_dp_compute_config(struct intel_encoder
> > *encoder,
> > if (lspcon->active)
> > lspcon_ycbcr420_config(&intel_connector->base,
> > pipe_config);
> >
> > + if (drm_mode_is_420_only(&connector->display_info,
> > adjusted_mode)) {
> > + if (!intel_dp_ycbcr420_config(connector, pipe_config))
> > {
> > + DRM_ERROR("Can't support YCBCR420 output\n");
> > + return false;
> > + }
> > + }
>
> This will clobber what lspcon_ycbcr420_config() did. So I suggest
>
> if (lspcon)
> lspcon_ycbcr420_config()
> else
> intel_dp_ycbcr420_config()
>
> ie. also move the 420_only check into the function itself.
>
I'll fix them as you guide.
> > +
> > pipe_config->has_drrs = false;
> > if (IS_G4X(dev_priv) || port == PORT_A)
> > pipe_config->has_audio = false;
> > --
> > 2.20.1
> >
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
_______________________________________________
Intel-gfx mailing list
Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
