* [PATCH v2 1/8] drm/dp: Factor out helper to distinguish between branch and sink devices [not found] <1477326811-30431-1-git-send-email-imre.deak@intel.com> @ 2016-10-24 16:33 ` Imre Deak 2016-10-24 17:10 ` Jani Nikula 0 siblings, 1 reply; 5+ messages in thread From: Imre Deak @ 2016-10-24 16:33 UTC (permalink / raw) To: intel-gfx; +Cc: Jani Nikula, dri-devel This check is open-coded in a few places, so it makes sense to simplify things by having a helper for it similar to the rest of DPCD feature helpers. v2: (Jani) - Move the helper to drm_dp_helper.h. - Split out this change to a separate patch. Cc: Jani Nikula <jani.nikula@intel.com> Cc: dri-devel@lists.freedesktop.org Signed-off-by: Imre Deak <imre.deak@intel.com> --- drivers/gpu/drm/i915/intel_dp.c | 11 ++++------- include/drm/drm_dp_helper.h | 6 ++++++ 2 files changed, 10 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index f30db8f..3c2293b 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1459,8 +1459,7 @@ static void intel_dp_print_hw_revision(struct intel_dp *intel_dp) if ((drm_debug & DRM_UT_KMS) == 0) return; - if (!(intel_dp->dpcd[DP_DOWNSTREAMPORT_PRESENT] & - DP_DWN_STRM_PORT_PRESENT)) + if (!drm_dp_is_branch(intel_dp->dpcd)) return; len = drm_dp_dpcd_read(&intel_dp->aux, DP_BRANCH_HW_REV, &rev, 1); @@ -1478,8 +1477,7 @@ static void intel_dp_print_sw_revision(struct intel_dp *intel_dp) if ((drm_debug & DRM_UT_KMS) == 0) return; - if (!(intel_dp->dpcd[DP_DOWNSTREAMPORT_PRESENT] & - DP_DWN_STRM_PORT_PRESENT)) + if (!drm_dp_is_branch(intel_dp->dpcd)) return; len = drm_dp_dpcd_read(&intel_dp->aux, DP_BRANCH_SW_REV, &rev, 2); @@ -3615,8 +3613,7 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp) if (!is_edp(intel_dp) && !intel_dp->sink_count) return false; - if (!(intel_dp->dpcd[DP_DOWNSTREAMPORT_PRESENT] & - DP_DWN_STRM_PORT_PRESENT)) + if (!drm_dp_is_branch(intel_dp->dpcd)) return true; /* native DP sink */ if (intel_dp->dpcd[DP_DPCD_REV] == 0x10) @@ -4134,7 +4131,7 @@ intel_dp_detect_dpcd(struct intel_dp *intel_dp) return connector_status_connected; /* if there's no downstream port, we're done */ - if (!(dpcd[DP_DOWNSTREAMPORT_PRESENT] & DP_DWN_STRM_PORT_PRESENT)) + if (!drm_dp_is_branch(dpcd)) return connector_status_connected; /* If we're HPD-aware, SINK_COUNT changes dynamically */ diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index 2a79882..55bbeb0 100644 --- a/include/drm/drm_dp_helper.h +++ b/include/drm/drm_dp_helper.h @@ -690,6 +690,12 @@ drm_dp_tps3_supported(const u8 dpcd[DP_RECEIVER_CAP_SIZE]) dpcd[DP_MAX_LANE_COUNT] & DP_TPS3_SUPPORTED; } +static inline bool +drm_dp_is_branch(const u8 dpcd[DP_RECEIVER_CAP_SIZE]) +{ + return dpcd[DP_DOWNSTREAMPORT_PRESENT] & DP_DWN_STRM_PORT_PRESENT; +} + /* * DisplayPort AUX channel */ -- 2.5.0 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH v2 1/8] drm/dp: Factor out helper to distinguish between branch and sink devices 2016-10-24 16:33 ` [PATCH v2 1/8] drm/dp: Factor out helper to distinguish between branch and sink devices Imre Deak @ 2016-10-24 17:10 ` Jani Nikula 2016-10-25 6:54 ` [Intel-gfx] " Daniel Vetter 0 siblings, 1 reply; 5+ messages in thread From: Jani Nikula @ 2016-10-24 17:10 UTC (permalink / raw) To: Imre Deak, intel-gfx; +Cc: dri-devel On Mon, 24 Oct 2016, Imre Deak <imre.deak@intel.com> wrote: > This check is open-coded in a few places, so it makes sense to simplify > things by having a helper for it similar to the rest of DPCD feature > helpers. > > v2: (Jani) > - Move the helper to drm_dp_helper.h. > - Split out this change to a separate patch. > > Cc: Jani Nikula <jani.nikula@intel.com> > Cc: dri-devel@lists.freedesktop.org > Signed-off-by: Imre Deak <imre.deak@intel.com> DP 1.4 has changed the name of "branch" devices, but I think this is good. Reviewed-by: Jani Nikula <jani.nikula@intel.com> > --- > drivers/gpu/drm/i915/intel_dp.c | 11 ++++------- > include/drm/drm_dp_helper.h | 6 ++++++ > 2 files changed, 10 insertions(+), 7 deletions(-) > > diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c > index f30db8f..3c2293b 100644 > --- a/drivers/gpu/drm/i915/intel_dp.c > +++ b/drivers/gpu/drm/i915/intel_dp.c > @@ -1459,8 +1459,7 @@ static void intel_dp_print_hw_revision(struct intel_dp *intel_dp) > if ((drm_debug & DRM_UT_KMS) == 0) > return; > > - if (!(intel_dp->dpcd[DP_DOWNSTREAMPORT_PRESENT] & > - DP_DWN_STRM_PORT_PRESENT)) > + if (!drm_dp_is_branch(intel_dp->dpcd)) > return; > > len = drm_dp_dpcd_read(&intel_dp->aux, DP_BRANCH_HW_REV, &rev, 1); > @@ -1478,8 +1477,7 @@ static void intel_dp_print_sw_revision(struct intel_dp *intel_dp) > if ((drm_debug & DRM_UT_KMS) == 0) > return; > > - if (!(intel_dp->dpcd[DP_DOWNSTREAMPORT_PRESENT] & > - DP_DWN_STRM_PORT_PRESENT)) > + if (!drm_dp_is_branch(intel_dp->dpcd)) > return; > > len = drm_dp_dpcd_read(&intel_dp->aux, DP_BRANCH_SW_REV, &rev, 2); > @@ -3615,8 +3613,7 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp) > if (!is_edp(intel_dp) && !intel_dp->sink_count) > return false; > > - if (!(intel_dp->dpcd[DP_DOWNSTREAMPORT_PRESENT] & > - DP_DWN_STRM_PORT_PRESENT)) > + if (!drm_dp_is_branch(intel_dp->dpcd)) > return true; /* native DP sink */ > > if (intel_dp->dpcd[DP_DPCD_REV] == 0x10) > @@ -4134,7 +4131,7 @@ intel_dp_detect_dpcd(struct intel_dp *intel_dp) > return connector_status_connected; > > /* if there's no downstream port, we're done */ > - if (!(dpcd[DP_DOWNSTREAMPORT_PRESENT] & DP_DWN_STRM_PORT_PRESENT)) > + if (!drm_dp_is_branch(dpcd)) > return connector_status_connected; > > /* If we're HPD-aware, SINK_COUNT changes dynamically */ > diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h > index 2a79882..55bbeb0 100644 > --- a/include/drm/drm_dp_helper.h > +++ b/include/drm/drm_dp_helper.h > @@ -690,6 +690,12 @@ drm_dp_tps3_supported(const u8 dpcd[DP_RECEIVER_CAP_SIZE]) > dpcd[DP_MAX_LANE_COUNT] & DP_TPS3_SUPPORTED; > } > > +static inline bool > +drm_dp_is_branch(const u8 dpcd[DP_RECEIVER_CAP_SIZE]) > +{ > + return dpcd[DP_DOWNSTREAMPORT_PRESENT] & DP_DWN_STRM_PORT_PRESENT; > +} > + > /* > * DisplayPort AUX channel > */ -- Jani Nikula, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Intel-gfx] [PATCH v2 1/8] drm/dp: Factor out helper to distinguish between branch and sink devices 2016-10-24 17:10 ` Jani Nikula @ 2016-10-25 6:54 ` Daniel Vetter 2016-10-25 7:46 ` Jani Nikula 0 siblings, 1 reply; 5+ messages in thread From: Daniel Vetter @ 2016-10-25 6:54 UTC (permalink / raw) To: Jani Nikula; +Cc: intel-gfx, dri-devel On Mon, Oct 24, 2016 at 08:10:46PM +0300, Jani Nikula wrote: > On Mon, 24 Oct 2016, Imre Deak <imre.deak@intel.com> wrote: > > This check is open-coded in a few places, so it makes sense to simplify > > things by having a helper for it similar to the rest of DPCD feature > > helpers. > > > > v2: (Jani) > > - Move the helper to drm_dp_helper.h. > > - Split out this change to a separate patch. > > > > Cc: Jani Nikula <jani.nikula@intel.com> > > Cc: dri-devel@lists.freedesktop.org > > Signed-off-by: Imre Deak <imre.deak@intel.com> > > DP 1.4 has changed the name of "branch" devices, but I think this is > good. > > Reviewed-by: Jani Nikula <jani.nikula@intel.com> Applied to drm-misc, thanks. -Daniel > > > > --- > > drivers/gpu/drm/i915/intel_dp.c | 11 ++++------- > > include/drm/drm_dp_helper.h | 6 ++++++ > > 2 files changed, 10 insertions(+), 7 deletions(-) > > > > diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c > > index f30db8f..3c2293b 100644 > > --- a/drivers/gpu/drm/i915/intel_dp.c > > +++ b/drivers/gpu/drm/i915/intel_dp.c > > @@ -1459,8 +1459,7 @@ static void intel_dp_print_hw_revision(struct intel_dp *intel_dp) > > if ((drm_debug & DRM_UT_KMS) == 0) > > return; > > > > - if (!(intel_dp->dpcd[DP_DOWNSTREAMPORT_PRESENT] & > > - DP_DWN_STRM_PORT_PRESENT)) > > + if (!drm_dp_is_branch(intel_dp->dpcd)) > > return; > > > > len = drm_dp_dpcd_read(&intel_dp->aux, DP_BRANCH_HW_REV, &rev, 1); > > @@ -1478,8 +1477,7 @@ static void intel_dp_print_sw_revision(struct intel_dp *intel_dp) > > if ((drm_debug & DRM_UT_KMS) == 0) > > return; > > > > - if (!(intel_dp->dpcd[DP_DOWNSTREAMPORT_PRESENT] & > > - DP_DWN_STRM_PORT_PRESENT)) > > + if (!drm_dp_is_branch(intel_dp->dpcd)) > > return; > > > > len = drm_dp_dpcd_read(&intel_dp->aux, DP_BRANCH_SW_REV, &rev, 2); > > @@ -3615,8 +3613,7 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp) > > if (!is_edp(intel_dp) && !intel_dp->sink_count) > > return false; > > > > - if (!(intel_dp->dpcd[DP_DOWNSTREAMPORT_PRESENT] & > > - DP_DWN_STRM_PORT_PRESENT)) > > + if (!drm_dp_is_branch(intel_dp->dpcd)) > > return true; /* native DP sink */ > > > > if (intel_dp->dpcd[DP_DPCD_REV] == 0x10) > > @@ -4134,7 +4131,7 @@ intel_dp_detect_dpcd(struct intel_dp *intel_dp) > > return connector_status_connected; > > > > /* if there's no downstream port, we're done */ > > - if (!(dpcd[DP_DOWNSTREAMPORT_PRESENT] & DP_DWN_STRM_PORT_PRESENT)) > > + if (!drm_dp_is_branch(dpcd)) > > return connector_status_connected; > > > > /* If we're HPD-aware, SINK_COUNT changes dynamically */ > > diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h > > index 2a79882..55bbeb0 100644 > > --- a/include/drm/drm_dp_helper.h > > +++ b/include/drm/drm_dp_helper.h > > @@ -690,6 +690,12 @@ drm_dp_tps3_supported(const u8 dpcd[DP_RECEIVER_CAP_SIZE]) > > dpcd[DP_MAX_LANE_COUNT] & DP_TPS3_SUPPORTED; > > } > > > > +static inline bool > > +drm_dp_is_branch(const u8 dpcd[DP_RECEIVER_CAP_SIZE]) > > +{ > > + return dpcd[DP_DOWNSTREAMPORT_PRESENT] & DP_DWN_STRM_PORT_PRESENT; > > +} > > + > > /* > > * DisplayPort AUX channel > > */ > > -- > Jani Nikula, Intel Open Source Technology Center > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Intel-gfx] [PATCH v2 1/8] drm/dp: Factor out helper to distinguish between branch and sink devices 2016-10-25 6:54 ` [Intel-gfx] " Daniel Vetter @ 2016-10-25 7:46 ` Jani Nikula 2016-10-25 8:12 ` Daniel Vetter 0 siblings, 1 reply; 5+ messages in thread From: Jani Nikula @ 2016-10-25 7:46 UTC (permalink / raw) To: Daniel Vetter; +Cc: intel-gfx, dri-devel On Tue, 25 Oct 2016, Daniel Vetter <daniel@ffwll.ch> wrote: > On Mon, Oct 24, 2016 at 08:10:46PM +0300, Jani Nikula wrote: >> On Mon, 24 Oct 2016, Imre Deak <imre.deak@intel.com> wrote: >> > This check is open-coded in a few places, so it makes sense to simplify >> > things by having a helper for it similar to the rest of DPCD feature >> > helpers. >> > >> > v2: (Jani) >> > - Move the helper to drm_dp_helper.h. >> > - Split out this change to a separate patch. >> > >> > Cc: Jani Nikula <jani.nikula@intel.com> >> > Cc: dri-devel@lists.freedesktop.org >> > Signed-off-by: Imre Deak <imre.deak@intel.com> >> >> DP 1.4 has changed the name of "branch" devices, but I think this is >> good. >> >> Reviewed-by: Jani Nikula <jani.nikula@intel.com> > > Applied to drm-misc, thanks. Thanks, but... that actually makes this series harder to land. We can't move forward with the i915 changes before a backmerge to dinq with this helper included. BR, Jani. > -Daniel >> >> >> > --- >> > drivers/gpu/drm/i915/intel_dp.c | 11 ++++------- >> > include/drm/drm_dp_helper.h | 6 ++++++ >> > 2 files changed, 10 insertions(+), 7 deletions(-) >> > >> > diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c >> > index f30db8f..3c2293b 100644 >> > --- a/drivers/gpu/drm/i915/intel_dp.c >> > +++ b/drivers/gpu/drm/i915/intel_dp.c >> > @@ -1459,8 +1459,7 @@ static void intel_dp_print_hw_revision(struct intel_dp *intel_dp) >> > if ((drm_debug & DRM_UT_KMS) == 0) >> > return; >> > >> > - if (!(intel_dp->dpcd[DP_DOWNSTREAMPORT_PRESENT] & >> > - DP_DWN_STRM_PORT_PRESENT)) >> > + if (!drm_dp_is_branch(intel_dp->dpcd)) >> > return; >> > >> > len = drm_dp_dpcd_read(&intel_dp->aux, DP_BRANCH_HW_REV, &rev, 1); >> > @@ -1478,8 +1477,7 @@ static void intel_dp_print_sw_revision(struct intel_dp *intel_dp) >> > if ((drm_debug & DRM_UT_KMS) == 0) >> > return; >> > >> > - if (!(intel_dp->dpcd[DP_DOWNSTREAMPORT_PRESENT] & >> > - DP_DWN_STRM_PORT_PRESENT)) >> > + if (!drm_dp_is_branch(intel_dp->dpcd)) >> > return; >> > >> > len = drm_dp_dpcd_read(&intel_dp->aux, DP_BRANCH_SW_REV, &rev, 2); >> > @@ -3615,8 +3613,7 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp) >> > if (!is_edp(intel_dp) && !intel_dp->sink_count) >> > return false; >> > >> > - if (!(intel_dp->dpcd[DP_DOWNSTREAMPORT_PRESENT] & >> > - DP_DWN_STRM_PORT_PRESENT)) >> > + if (!drm_dp_is_branch(intel_dp->dpcd)) >> > return true; /* native DP sink */ >> > >> > if (intel_dp->dpcd[DP_DPCD_REV] == 0x10) >> > @@ -4134,7 +4131,7 @@ intel_dp_detect_dpcd(struct intel_dp *intel_dp) >> > return connector_status_connected; >> > >> > /* if there's no downstream port, we're done */ >> > - if (!(dpcd[DP_DOWNSTREAMPORT_PRESENT] & DP_DWN_STRM_PORT_PRESENT)) >> > + if (!drm_dp_is_branch(dpcd)) >> > return connector_status_connected; >> > >> > /* If we're HPD-aware, SINK_COUNT changes dynamically */ >> > diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h >> > index 2a79882..55bbeb0 100644 >> > --- a/include/drm/drm_dp_helper.h >> > +++ b/include/drm/drm_dp_helper.h >> > @@ -690,6 +690,12 @@ drm_dp_tps3_supported(const u8 dpcd[DP_RECEIVER_CAP_SIZE]) >> > dpcd[DP_MAX_LANE_COUNT] & DP_TPS3_SUPPORTED; >> > } >> > >> > +static inline bool >> > +drm_dp_is_branch(const u8 dpcd[DP_RECEIVER_CAP_SIZE]) >> > +{ >> > + return dpcd[DP_DOWNSTREAMPORT_PRESENT] & DP_DWN_STRM_PORT_PRESENT; >> > +} >> > + >> > /* >> > * DisplayPort AUX channel >> > */ >> >> -- >> Jani Nikula, Intel Open Source Technology Center >> _______________________________________________ >> Intel-gfx mailing list >> Intel-gfx@lists.freedesktop.org >> https://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Jani Nikula, Intel Open Source Technology Center _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH v2 1/8] drm/dp: Factor out helper to distinguish between branch and sink devices 2016-10-25 7:46 ` Jani Nikula @ 2016-10-25 8:12 ` Daniel Vetter 0 siblings, 0 replies; 5+ messages in thread From: Daniel Vetter @ 2016-10-25 8:12 UTC (permalink / raw) To: Jani Nikula; +Cc: dri-devel, intel-gfx On Tue, Oct 25, 2016 at 10:46:44AM +0300, Jani Nikula wrote: > On Tue, 25 Oct 2016, Daniel Vetter <daniel@ffwll.ch> wrote: > > On Mon, Oct 24, 2016 at 08:10:46PM +0300, Jani Nikula wrote: > >> On Mon, 24 Oct 2016, Imre Deak <imre.deak@intel.com> wrote: > >> > This check is open-coded in a few places, so it makes sense to simplify > >> > things by having a helper for it similar to the rest of DPCD feature > >> > helpers. > >> > > >> > v2: (Jani) > >> > - Move the helper to drm_dp_helper.h. > >> > - Split out this change to a separate patch. > >> > > >> > Cc: Jani Nikula <jani.nikula@intel.com> > >> > Cc: dri-devel@lists.freedesktop.org > >> > Signed-off-by: Imre Deak <imre.deak@intel.com> > >> > >> DP 1.4 has changed the name of "branch" devices, but I think this is > >> good. > >> > >> Reviewed-by: Jani Nikula <jani.nikula@intel.com> > > > > Applied to drm-misc, thanks. > > Thanks, but... that actually makes this series harder to land. We can't > move forward with the i915 changes before a backmerge to dinq with this > helper included. Oh garbage, I thought it was 1/1. Should wait for coffee to kick in first. I guess just apply it to drm-intel also, and we'll deal with the fallout (I can't rebase and all that). -Daniel > > BR, > Jani. > > > -Daniel > >> > >> > >> > --- > >> > drivers/gpu/drm/i915/intel_dp.c | 11 ++++------- > >> > include/drm/drm_dp_helper.h | 6 ++++++ > >> > 2 files changed, 10 insertions(+), 7 deletions(-) > >> > > >> > diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c > >> > index f30db8f..3c2293b 100644 > >> > --- a/drivers/gpu/drm/i915/intel_dp.c > >> > +++ b/drivers/gpu/drm/i915/intel_dp.c > >> > @@ -1459,8 +1459,7 @@ static void intel_dp_print_hw_revision(struct intel_dp *intel_dp) > >> > if ((drm_debug & DRM_UT_KMS) == 0) > >> > return; > >> > > >> > - if (!(intel_dp->dpcd[DP_DOWNSTREAMPORT_PRESENT] & > >> > - DP_DWN_STRM_PORT_PRESENT)) > >> > + if (!drm_dp_is_branch(intel_dp->dpcd)) > >> > return; > >> > > >> > len = drm_dp_dpcd_read(&intel_dp->aux, DP_BRANCH_HW_REV, &rev, 1); > >> > @@ -1478,8 +1477,7 @@ static void intel_dp_print_sw_revision(struct intel_dp *intel_dp) > >> > if ((drm_debug & DRM_UT_KMS) == 0) > >> > return; > >> > > >> > - if (!(intel_dp->dpcd[DP_DOWNSTREAMPORT_PRESENT] & > >> > - DP_DWN_STRM_PORT_PRESENT)) > >> > + if (!drm_dp_is_branch(intel_dp->dpcd)) > >> > return; > >> > > >> > len = drm_dp_dpcd_read(&intel_dp->aux, DP_BRANCH_SW_REV, &rev, 2); > >> > @@ -3615,8 +3613,7 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp) > >> > if (!is_edp(intel_dp) && !intel_dp->sink_count) > >> > return false; > >> > > >> > - if (!(intel_dp->dpcd[DP_DOWNSTREAMPORT_PRESENT] & > >> > - DP_DWN_STRM_PORT_PRESENT)) > >> > + if (!drm_dp_is_branch(intel_dp->dpcd)) > >> > return true; /* native DP sink */ > >> > > >> > if (intel_dp->dpcd[DP_DPCD_REV] == 0x10) > >> > @@ -4134,7 +4131,7 @@ intel_dp_detect_dpcd(struct intel_dp *intel_dp) > >> > return connector_status_connected; > >> > > >> > /* if there's no downstream port, we're done */ > >> > - if (!(dpcd[DP_DOWNSTREAMPORT_PRESENT] & DP_DWN_STRM_PORT_PRESENT)) > >> > + if (!drm_dp_is_branch(dpcd)) > >> > return connector_status_connected; > >> > > >> > /* If we're HPD-aware, SINK_COUNT changes dynamically */ > >> > diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h > >> > index 2a79882..55bbeb0 100644 > >> > --- a/include/drm/drm_dp_helper.h > >> > +++ b/include/drm/drm_dp_helper.h > >> > @@ -690,6 +690,12 @@ drm_dp_tps3_supported(const u8 dpcd[DP_RECEIVER_CAP_SIZE]) > >> > dpcd[DP_MAX_LANE_COUNT] & DP_TPS3_SUPPORTED; > >> > } > >> > > >> > +static inline bool > >> > +drm_dp_is_branch(const u8 dpcd[DP_RECEIVER_CAP_SIZE]) > >> > +{ > >> > + return dpcd[DP_DOWNSTREAMPORT_PRESENT] & DP_DWN_STRM_PORT_PRESENT; > >> > +} > >> > + > >> > /* > >> > * DisplayPort AUX channel > >> > */ > >> > >> -- > >> Jani Nikula, Intel Open Source Technology Center > >> _______________________________________________ > >> Intel-gfx mailing list > >> Intel-gfx@lists.freedesktop.org > >> https://lists.freedesktop.org/mailman/listinfo/intel-gfx > > -- > Jani Nikula, Intel Open Source Technology Center -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply [flat|nested] 5+ messages in thread
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2016-10-24 16:33 ` [PATCH v2 1/8] drm/dp: Factor out helper to distinguish between branch and sink devices Imre Deak
2016-10-24 17:10 ` Jani Nikula
2016-10-25 6:54 ` [Intel-gfx] " Daniel Vetter
2016-10-25 7:46 ` Jani Nikula
2016-10-25 8:12 ` Daniel Vetter
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