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From: Kuninori Morimoto <kuninori.morimoto.gx-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
Subject: Re: [PATCH 03/10] ASoC: audio-graph: Support Codec with multiple endpoints
Date: 20 Jul 2020 14:13:35 +0900
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To: Sameer Pujar <spujar-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
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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