linux-kernel - Re: [PATCH 2/2] drm/msm/hdmi: add hdmi hdcp support (V2)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAJAp7OgRJX2-_oCruHjgAzjwBCsy-t7WZoVWjhLM9iQ-AGK7cw@mail.gmail.com>
Date:	Fri, 30 Jan 2015 14:39:36 -0800
From:	Bjorn Andersson <bjorn@...o.se>
To:	Jilai Wang <jilaiw@...eaurora.org>
Cc:	"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
	linux-arm-msm <linux-arm-msm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Rob Clark <robdclark@...il.com>
Subject: Re: [PATCH 2/2] drm/msm/hdmi: add hdmi hdcp support (V2)

On Fri, Jan 30, 2015 at 1:51 PM, Bjorn Andersson <bjorn@...o.se> wrote:
> On Tue, Jan 13, 2015 at 12:43 PM, Jilai Wang <jilaiw@...eaurora.org> wrote:
>> Add HDMI HDCP support including HDCP PartI/II/III authentication.
>> V1: Initial Change
>> V2: Address Bjorn&Rob's comments
>>     Refactor the authentication process to use single work instead
>>     of multiple work for different authentication stages.
>>
> Looks cleaner and the SCM parts look good now.
>
> But the ddc communication still makes me wonder, see below.
>

Rob made me aware about the fact that the hdmi driver is both
implementing a driver for the i2c controller and now for the hdcp
client and hence doesn't have an i2c_client handle.

So unless this is redesigned to be split in a separate i2c client
driver we probably have to have the ddc functions like this.

I'm fine with this as is for now.

Regards,
Bjorn
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/