[Intel-gfx] [RFC] drm/hdcp: Max MST content streams

[Maarten Lankhorst]

Op 20-10-2020 om 11:42 schreef Jani Nikula:
> On Mon, 19 Oct 2020, Anshuman Gupta <anshuman.gupta at intel.com> wrote:
>> Let's define Maximum MST content streams up to four
>> generically which can be supported by modern display
>> controllers.
>>
>> Cc: Sean Paul <seanpaul at chromium.org>
>> Cc: Ramalingam C <ramalingam.c at intel.com>
>> Signed-off-by: Anshuman Gupta <anshuman.gupta at intel.com>
> Hey drm-misc maintainers,
>
> I'd like to get an ack to merge this via drm-intel as part of [1].
>
> Thanks,
> Jani.
>
>
>
> [1] http://lore.kernel.org/r/20201014045252.13608-1-anshuman.gupta@intel.com
>
>
>
>> ---
>>  include/drm/drm_hdcp.h | 8 ++++----
>>  1 file changed, 4 insertions(+), 4 deletions(-)
>>
>> diff --git a/include/drm/drm_hdcp.h b/include/drm/drm_hdcp.h
>> index fe58dbb46962..ac22c246542a 100644
>> --- a/include/drm/drm_hdcp.h
>> +++ b/include/drm/drm_hdcp.h
>> @@ -101,11 +101,11 @@
>>  
>>  /* Following Macros take a byte at a time for bit(s) masking */
>>  /*
>> - * TODO: This has to be changed for DP MST, as multiple stream on
>> - * same port is possible.
>> - * For HDCP2.2 on HDMI and DP SST this value is always 1.
>> + * TODO: HDCP_2_2_MAX_CONTENT_STREAMS_CNT is based upon actual
>> + * H/W MST streams capacity.
>> + * This required to be moved out to platform specific header.
>>   */
>> -#define HDCP_2_2_MAX_CONTENT_STREAMS_CNT	1
>> +#define HDCP_2_2_MAX_CONTENT_STREAMS_CNT	4
>>  #define HDCP_2_2_TXCAP_MASK_LEN			2
>>  #define HDCP_2_2_RXCAPS_LEN			3
>>  #define HDCP_2_2_RX_REPEATER(x)			((x) & BIT(0))

Well since it's such a small change..

Acked-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>