On 2020-05-19 at 18:16:21 -0400, Sean Paul wrote:
> From: Sean Paul <seanpaul@xxxxxxxxxxxx>
>
> We're seeing some R0' mismatches in the field, particularly with
I think you want to say Vprime verification? delay is added in between
the retry for vprime verfication.
-Ram
> repeaters. I'm guessing the (already lenient) 300ms wait time isn't
> enough for some setups. So add an additional wait when R0' is
> mismatched.
>
> Signed-off-by: Sean Paul <seanpaul@xxxxxxxxxxxx>
> ---
> drivers/gpu/drm/i915/display/intel_hdcp.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c
> index 2cbc4619b4ce..924a717a4fa4 100644
> --- a/drivers/gpu/drm/i915/display/intel_hdcp.c
> +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
> @@ -592,6 +592,9 @@ int intel_hdcp_auth_downstream(struct intel_connector *connector)
> bstatus);
> if (!ret)
> break;
> +
> + /* Maybe the sink is lazy, give it some more time */
> + usleep_range(10000, 50000);
> }
>
> if (i == tries) {
> --
> Sean Paul, Software Engineer, Google / Chromium OS
>
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