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Fri, 15 Nov 2019 09:37:52 +0000 To: Takashi Iwai References: <20191114033704.18171-1-nmahale@nvidia.com> From: Nikhil Mahale Message-ID: Date: Fri, 15 Nov 2019 15:07:49 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.1 MIME-Version: 1.0 In-Reply-To: X-Originating-IP: [10.124.1.5] X-ClientProxiedBy: HQMAIL111.nvidia.com (172.20.187.18) To HQMAIL107.nvidia.com (172.20.187.13) Content-Language: en-US DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1573810673; bh=B7Py/AOEt0wle8S7StvFnXWWIfdonU3TOab6GKdWUB0=; h=X-PGP-Universal:Subject:To:CC:References:From:Message-ID:Date: User-Agent:MIME-Version:In-Reply-To:X-Originating-IP: X-ClientProxiedBy:Content-Type:Content-Language: Content-Transfer-Encoding; b=ivdSKmnHjbFANFAz9YwLmf5skc+anYgK5qw0z/5NCaLjTwac+x4gh4sl5p3Wz941A hRZnmAHMh6D2cN3ODmSJTFkd5lzkWW82FA6YJFx8M1TszKdCC2ghoKSrSuxVwnhHmn lNes7/bB1q13a96DH70kvggoblerkgcEQ+BETR6TDZLj6BjGKpxJZjhE/NGeX4/Lth JcNzsqoJIxSIQUws7E6vOlijMw6rkW1/PZyhdScQJMKkmdxQimFH5yFbfXhuE8nzDr KSXtnbPPJVNWuTccPtAk/RWLVTBXKmnv1rwmhGz+BrdupZH1ND0MoFRV4rBuqbORGG uyBGFFibIGYaQ== Cc: alsa-devel@alsa-project.org, tiwai@suse.com, aplattner@nvidia.com Subject: Re: [alsa-devel] [PATCH v1 0/5] ALSA: hda - Add DP-MST support for NVIDIA codecs X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" On 11/14/19 4:08 PM, Takashi Iwai wrote: > On Thu, 14 Nov 2019 04:36:59 +0100, > Nikhil Mahale wrote: >> >> Today, DisplayPort multi-stream transport (DP-MST) audio is not >> supported on codec drivers which don't use the audio component >> (acomp) binding. >> >> The commit ade49db337a9 (ALSA: hda/hdmi - Allow audio component for >> AMD/ATI and Nvidia HDMI) added the DRM audio component binding for >> the NVIDIA codec drivers, but the traditional HD-audio unsolicited >> event code path is still in use by the proprietary NVIDIA graphics >> driver. >> >> This patch set adds DP-MST audio support for non-acomp codec drivers >> which use the traditional HD-audio unsolicited event code path. This >> patch set adds DP-MST support for NVIDIA codecs. >> >> The patch set has been tested for HDMI/DP-SST/DP-MST(4 dp-mst audio >> streams) configurations on NVIDIA Kepler and Maxwell GPUs, using >> both the nouveau driver and the proprietary NVIDIA graphics driver. > > Thanks for the patch. The logic looks good, but there are a few > concerns in implementation details. Will comment in the reply of each > patch. Thanks Takashi, I am sending out 2nd version of patch set in which I tried to address you concerned. Thanks, Nikhil Mahale > The timing is a bit late for merging into 5.5, though, for this kind > of non-trivial changes. It'll be likely applied after 5.5 merge > window, so for 5.6. > > > Takashi > ----------------------------------------------------------------------------------- This email message is for the sole use of the intended recipient(s) and may contain confidential information. Any unauthorized review, use, disclosure or distribution is prohibited. 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