On Thu, Aug 29, 2019 at 08:52:31AM -0400, Alex Deucher wrote: > On Mon, Aug 26, 2019 at 9:22 AM Oleg Vasilev <oleg.vasilev@xxxxxxxxx> wrote: > > > > Since DP-specific information is stored in driver's structures, every > > driver needs to implement subconnector property by itself. > > > > Reviewed-by: Emil Velikov <emil.velikov@xxxxxxxxxxxxx> > > Signed-off-by: Oleg Vasilev <oleg.vasilev@xxxxxxxxx> > > Cc: Alex Deucher <alexander.deucher@xxxxxxx> > > Cc: Christian König <christian.koenig@xxxxxxx> > > Cc: David (ChunMing) Zhou <David1.Zhou@xxxxxxx> > > Cc: amd-gfx@xxxxxxxxxxxxxxxxxxxxx > > Similar to Ilia's sentiments, do these make sense for amd drivers? We > expose the physical connectors only. So physical DP ports show up as > DP drm connectors and if you connect a passive DP to HDMI/DVI dingle, > the driver just does the right thing. We don't expose multiple drm > connectors for the same physical connector. After a bit more though I guess you could just if (detected DP) set_subconnector_prop(DFP type); else if (detected HDMI) set_subconnector_prop(HDMI) > > Alex > > > --- > > drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c | 10 ++++++++++ > > drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h | 1 + > > drivers/gpu/drm/amd/amdgpu/atombios_dp.c | 18 +++++++++++++++++- > > 3 files changed, 28 insertions(+), 1 deletion(-) > > > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c > > index ece55c8fa673..348ed9e46bae 100644 > > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c > > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c > > @@ -26,6 +26,7 @@ > > > > #include <drm/drm_edid.h> > > #include <drm/drm_fb_helper.h> > > +#include <drm/drm_dp_helper.h> > > #include <drm/drm_probe_helper.h> > > #include <drm/amdgpu_drm.h> > > #include "amdgpu.h" > > @@ -1407,6 +1408,10 @@ amdgpu_connector_dp_detect(struct drm_connector *connector, bool force) > > pm_runtime_put_autosuspend(connector->dev->dev); > > } > > > > + drm_dp_set_subconnector_property(&amdgpu_connector->base, > > + ret, > > + amdgpu_dig_connector->dpcd, > > + amdgpu_dig_connector->downstream_ports); > > return ret; > > } > > > > @@ -1934,6 +1939,11 @@ amdgpu_connector_add(struct amdgpu_device *adev, > > if (has_aux) > > amdgpu_atombios_dp_aux_init(amdgpu_connector); > > > > + if (connector_type == DRM_MODE_CONNECTOR_DisplayPort || > > + connector_type == DRM_MODE_CONNECTOR_eDP) { > > + drm_mode_add_dp_subconnector_property(&amdgpu_connector->base); > > + } > > + > > return; > > > > failed: > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h > > index eb9975f4decb..cb360b44371c 100644 > > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h > > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h > > @@ -469,6 +469,7 @@ struct amdgpu_encoder { > > struct amdgpu_connector_atom_dig { > > /* displayport */ > > u8 dpcd[DP_RECEIVER_CAP_SIZE]; > > + u8 downstream_ports[DP_MAX_DOWNSTREAM_PORTS]; > > u8 dp_sink_type; > > int dp_clock; > > int dp_lane_count; > > diff --git a/drivers/gpu/drm/amd/amdgpu/atombios_dp.c b/drivers/gpu/drm/amd/amdgpu/atombios_dp.c > > index 6858cde9fc5d..b0d414553e71 100644 > > --- a/drivers/gpu/drm/amd/amdgpu/atombios_dp.c > > +++ b/drivers/gpu/drm/amd/amdgpu/atombios_dp.c > > @@ -334,6 +334,22 @@ static void amdgpu_atombios_dp_probe_oui(struct amdgpu_connector *amdgpu_connect > > buf[0], buf[1], buf[2]); > > } > > > > +static void amdgpu_atombios_dp_ds_ports(struct amdgpu_connector *amdgpu_connector) > > +{ > > + struct amdgpu_connector_atom_dig *dig_connector = amdgpu_connector->con_priv; > > + int ret; > > + > > + if (dig_connector->dpcd[DP_DPCD_REV] > 0x10) { > > + ret = drm_dp_dpcd_read(&amdgpu_connector->ddc_bus->aux, > > + DP_DOWNSTREAM_PORT_0, > > + dig_connector->downstream_ports, > > + DP_MAX_DOWNSTREAM_PORTS); > > + if (ret) > > + memset(dig_connector->downstream_ports, 0, > > + DP_MAX_DOWNSTREAM_PORTS); > > + } > > +} > > + > > int amdgpu_atombios_dp_get_dpcd(struct amdgpu_connector *amdgpu_connector) > > { > > struct amdgpu_connector_atom_dig *dig_connector = amdgpu_connector->con_priv; > > @@ -349,7 +365,7 @@ int amdgpu_atombios_dp_get_dpcd(struct amdgpu_connector *amdgpu_connector) > > dig_connector->dpcd); > > > > amdgpu_atombios_dp_probe_oui(amdgpu_connector); > > - > > + amdgpu_atombios_dp_ds_ports(amdgpu_connector); > > return 0; > > } > > > > -- > > 2.23.0 > > > > _______________________________________________ > > amd-gfx mailing list > > amd-gfx@xxxxxxxxxxxxxxxxxxxxx > > https://lists.freedesktop.org/mailman/listinfo/amd-gfx > _______________________________________________ > dri-devel mailing list > dri-devel@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/dri-devel -- Ville Syrjälä Intel _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel