Re: [PATCH 5/5] drm/i915/dp: Move hdcp link check function into short pulse handler

["Ville Syrjälä" <ville.syrjala@linux.intel.com>]

On Tue, Sep 18, 2018 at 12:20:09AM -0700, Dhinakaran Pandiyan wrote:
> This way all short pulse handlers except MST are in one place.
> 
> Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
> ---
>  drivers/gpu/drm/i915/intel_dp.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> index 123c2eafafab..03d2c6426016 100644
> --- a/drivers/gpu/drm/i915/intel_dp.c
> +++ b/drivers/gpu/drm/i915/intel_dp.c
> @@ -4501,6 +4501,9 @@ intel_dp_short_pulse(struct intel_dp *intel_dp)
>  		drm_kms_helper_hotplug_event(&dev_priv->drm);
>  	}
>  
> +	/* Short pulse can signify loss of hdcp authentication */
> +	intel_hdcp_check_link(intel_dp->attached_connector);
> +
>  	return true;
>  }
>  
> @@ -5634,9 +5637,6 @@ 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);
> -

This changes the behaviour to skip intel_hdcp_check_link() when
intel_dp_short_pulse() decides to fall back to full detect. Not sure if
that's OK or not.

>  		if (!handled)
>  			goto put_power;
>  	}
> -- 
> 2.14.1
> 
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-- 
Ville Syrjälä
Intel
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