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| author | Ramalingam C <ramalingam.c@intel.com> | 2019-02-16 23:06:52 +0530 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2019-02-20 20:40:01 +0100 |
| commit | 09d56393c1d8d55fc8589a15cb7f4a5f1d40a0f2 (patch) | |
| tree | 6aaa17dc64d59aa6a1fb4b0891691a874cbcb5fd /drivers/gpu/drm/i915/intel_dp.c | |
| parent | 9055aac76589c73fce8edc6abba9d214a4e983f2 (diff) | |
| download | linux-stable-09d56393c1d8d55fc8589a15cb7f4a5f1d40a0f2.tar.gz linux-stable-09d56393c1d8d55fc8589a15cb7f4a5f1d40a0f2.tar.bz2 linux-stable-09d56393c1d8d55fc8589a15cb7f4a5f1d40a0f2.zip | |
drm/i915: hdcp1.4 CP_IRQ handling and SW encryption tracking
"hdcp_encrypted" flag is defined to denote the HDCP1.4 encryption status.
This SW tracking is used to determine the need for real hdcp1.4 disable
and hdcp_check_link upon CP_IRQ.
On CP_IRQ we filter the CP_IRQ related to the states like Link failure
and reauthentication req etc and handle them in hdcp_check_link.
CP_IRQ corresponding to the authentication msg availability are ignored.
WARN_ON is added for the abrupt stop of HDCP encryption of a port.
v2:
bool is used in struct for the cleaner coding. [Daniel]
check_link work_fn is scheduled for cp_irq handling [Daniel]
v3:
rebased.
Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1550338640-17470-6-git-send-email-ramalingam.c@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index cf709835fb9a..9f73a4239574 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -4780,7 +4780,7 @@ static void intel_dp_check_service_irq(struct intel_dp *intel_dp) intel_dp_handle_test_request(intel_dp); if (val & DP_CP_IRQ) - intel_hdcp_check_link(intel_dp->attached_connector); + intel_hdcp_handle_cp_irq(intel_dp->attached_connector); if (val & DP_SINK_SPECIFIC_IRQ) DRM_DEBUG_DRIVER("Sink specific irq unhandled\n"); |