On Mon, Oct 22, 2018 at 07:46:04PM +0530, Ramalingam C wrote:
> HDCP check link is invoked only on CP_IRQ detection, instead of all
> short pulses.
>
> v3:
> No Changes.
> v4:
> Added sean in cc and collected the reviewed-by received.
> v5:
> No Change.
> v6:
> No Change.
> v7:
> No Change.
> v8:
> Rebased.
>
> Signed-off-by: Ramalingam C <[email protected]>
> cc: Sean Paul <[email protected]>
> Reviewed-by: Uma Shankar <[email protected]>
> Reviewed-by: Sean Paul <[email protected]>
Reviewed-by: Daniel Vetter <[email protected]>
> ---
> drivers/gpu/drm/i915/intel_dp.c | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> index 1f098e509143..27377bf8105c 100644
> --- a/drivers/gpu/drm/i915/intel_dp.c
> +++ b/drivers/gpu/drm/i915/intel_dp.c
> @@ -4530,8 +4530,11 @@ static void intel_dp_check_service_irq(struct intel_dp
> *intel_dp)
> if (val & DP_AUTOMATED_TEST_REQUEST)
> intel_dp_handle_test_request(intel_dp);
>
> - if (val & (DP_CP_IRQ | DP_SINK_SPECIFIC_IRQ))
> - DRM_DEBUG_DRIVER("CP or sink specific irq unhandled\n");
> + if (val & DP_CP_IRQ)
> + intel_hdcp_check_link(intel_dp->attached_connector);
> +
> + if (val & DP_SINK_SPECIFIC_IRQ)
> + DRM_DEBUG_DRIVER("Sink specific irq unhandled\n");
> }
>
> /*
> @@ -5694,9 +5697,6 @@ intel_dp_hpd_pulse(struct intel_digital_port
> *intel_dig_port, bool long_hpd)
>
> handled = intel_dp_short_pulse(intel_dp);
>
> - /* Short pulse can signify loss of hdcp authentication */
> - intel_hdcp_check_link(intel_dp->attached_connector);
> -
> if (!handled)
> goto put_power;
> }
> --
> 2.7.4
>
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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