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Date: 20 Jul 2020 14:13:35 +0900 From: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com> To: Sameer Pujar <spujar@...dia.com> Cc: <broonie@...nel.org>, <perex@...ex.cz>, <tiwai@...e.com>, <robh+dt@...nel.org>, <lgirdwood@...il.com>, <thierry.reding@...il.com>, <jonathanh@...dia.com>, <alsa-devel@...a-project.org>, <linux-tegra@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <sharadg@...dia.com>, <mkumard@...dia.com>, <viswanathl@...dia.com>, <rlokhande@...dia.com>, <dramesh@...dia.com>, <atalambedu@...dia.com>, <nwartikar@...dia.com>, <swarren@...dia.com>, <nicoleotsuka@...il.com> Subject: Re: [PATCH 03/10] ASoC: audio-graph: Support Codec with multiple endpoints Hi Sameer > >> diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c > >> index 1e20562..b1903f9 100644 > >> --- a/sound/soc/generic/audio-graph-card.c > >> +++ b/sound/soc/generic/audio-graph-card.c > >> @@ -201,8 +201,7 @@ static void graph_parse_mclk_fs(struct device_node *top, > >> static int graph_dai_link_of_dpcm(struct asoc_simple_priv *priv, > >> struct device_node *cpu_ep, > >> struct device_node *codec_ep, > >> - struct link_info *li, > >> - int dup_codec) > >> + struct link_info *li) > > This patch breaks DPCM connection which is used for MIXer > > Could you please elaborate a bit more as to what is broken with this? > The problem I am trying to solve here is to have multiple endpoints > for Codec port. For example MIXer, it is like below. If you removes "dup_codec", it breaks MIXer and/or TDM split mode. CPU0 ---+---- DAI | CPU1 ---+ cpu { ports { port@0 { cpu_0: endpoint { remote-endpoint = <&codec_0>; }; }; port@1 { cpu_1: endpoint { remote-endpoint = <&codec_1>; }; }; }; }; codec { port { codec_0: endpoint { remote-endpoint = <&cpu_0>; }; codec_1: endpoint { remote-endpoint = <&cpu_1>; }; } }; Thank you for your help !! Best regards --- Kuninori Morimoto
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