| Message ID | 20201023122112.15265-4-anshuman.gupta@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | HDCP 2.2 and HDCP 1.4 Gen12 DP MST support | expand |
> -----Original Message----- > From: Anshuman Gupta <anshuman.gupta@intel.com> > Sent: Friday, October 23, 2020 5:51 PM > To: intel-gfx@lists.freedesktop.org; dri-devel@lists.freedesktop.org > Cc: seanpaul@chromium.org; Nikula, Jani <jani.nikula@intel.com>; C, > Ramalingam <ramalingam.c@intel.com>; Li, Juston <juston.li@intel.com>; > Shankar, Uma <uma.shankar@intel.com>; Gupta, Anshuman > <anshuman.gupta@intel.com>; Ville Syrjälä <ville.syrjala@linux.intel.com> > Subject: [PATCH v3 03/16] drm/i915/hotplug: Handle CP_IRQ for DP-MST > > Handle CP_IRQ in DEVICE_SERVICE_IRQ_VECTOR_ESI0 It requires to call > intel_hdcp_handle_cp_irq() in case of CP_IRQ is triggered by a sink in DP-MST > topology. Looks Good to me. Reviewed-by: Uma Shankar <uma.shankar@intel.com> > Cc: "Ville Syrjälä" <ville.syrjala@linux.intel.com> > Cc: Ramalingam C <ramalingam.c@intel.com> > Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com> > --- > drivers/gpu/drm/i915/display/intel_dp.c | 14 +++++++++++++- > 1 file changed, 13 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_dp.c > b/drivers/gpu/drm/i915/display/intel_dp.c > index 818daab252f3..21c6c9828cd7 100644 > --- a/drivers/gpu/drm/i915/display/intel_dp.c > +++ b/drivers/gpu/drm/i915/display/intel_dp.c > @@ -5657,6 +5657,17 @@ static void intel_dp_handle_test_request(struct > intel_dp *intel_dp) > "Could not write test response to sink\n"); } > > +static void > +intel_dp_mst_hpd_irq(struct intel_dp *intel_dp, u8 *esi, bool *handled) > +{ > + drm_dp_mst_hpd_irq(&intel_dp->mst_mgr, esi, handled); > + > + if (esi[1] & DP_CP_IRQ) { > + intel_hdcp_handle_cp_irq(intel_dp- > >attached_connector); > + *handled = true; > + } > +} > + > /** > * intel_dp_check_mst_status - service any pending MST interrupts, check link > status > * @intel_dp: Intel DP struct > @@ -5701,7 +5712,8 @@ intel_dp_check_mst_status(struct intel_dp *intel_dp) > > drm_dbg_kms(&i915->drm, "got esi %3ph\n", esi); > > - drm_dp_mst_hpd_irq(&intel_dp->mst_mgr, esi, &handled); > + intel_dp_mst_hpd_irq(intel_dp, esi, &handled); > + > if (!handled) > break; > > -- > 2.26.2
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 818daab252f3..21c6c9828cd7 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -5657,6 +5657,17 @@ static void intel_dp_handle_test_request(struct intel_dp *intel_dp) "Could not write test response to sink\n"); } +static void +intel_dp_mst_hpd_irq(struct intel_dp *intel_dp, u8 *esi, bool *handled) +{ + drm_dp_mst_hpd_irq(&intel_dp->mst_mgr, esi, handled); + + if (esi[1] & DP_CP_IRQ) { + intel_hdcp_handle_cp_irq(intel_dp->attached_connector); + *handled = true; + } +} + /** * intel_dp_check_mst_status - service any pending MST interrupts, check link status * @intel_dp: Intel DP struct @@ -5701,7 +5712,8 @@ intel_dp_check_mst_status(struct intel_dp *intel_dp) drm_dbg_kms(&i915->drm, "got esi %3ph\n", esi); - drm_dp_mst_hpd_irq(&intel_dp->mst_mgr, esi, &handled); + intel_dp_mst_hpd_irq(intel_dp, esi, &handled); + if (!handled) break;
Handle CP_IRQ in DEVICE_SERVICE_IRQ_VECTOR_ESI0 It requires to call intel_hdcp_handle_cp_irq() in case of CP_IRQ is triggered by a sink in DP-MST topology. Cc: "Ville Syrjälä" <ville.syrjala@linux.intel.com> Cc: Ramalingam C <ramalingam.c@intel.com> Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com> --- drivers/gpu/drm/i915/display/intel_dp.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-)