From: Sen Wang <sen@ti.com>
To: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: <broonie@kernel.org>, <lgirdwood@gmail.com>, <perex@perex.cz>,
<tiwai@suse.com>, <devarsht@ti.com>, <v-singh1@ti.com>,
<linux-sound@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] ASoC: simple-card-utils: fix graph_util_is_ports0() for DT overlays
Date: Sun, 8 Mar 2026 23:12:48 -0500 [thread overview]
Message-ID: <f339be72-7566-4dbb-b7fe-e681c6912ab2@ti.com> (raw)
In-Reply-To: <87jyvl25tf.wl-kuninori.morimoto.gx@renesas.com>
On 3/8/26 19:40, Kuninori Morimoto wrote:
>
> Hi Sen
>
>> But when the DPCM topology comes from a DT overlay, __of_attach_node()
>> inserts new children at the head of the sibling list, reversing the
>> order. of_get_child_by_name() then returns ports@N instead of ports@0,
>> causing all front-end links to be classified as back-ends in
>> audio-graph-card2. The card subsequently breaks and registers with no
>> PCM devices.
> (snip)
>> + /* match "ports" or "ports@0" by unit address in node name */
>
> Could you please indicate this method is needed for DT overlay ?
> It is the main reason.
>
> Thank you for your help !!
>
> Best regards
> ---
> Kuninori Morimoto
Thanks for the feedback Kuninori,
Will update the code comment and send a v2 shortly.
Best,
Sen Wang
prev parent reply other threads:[~2026-03-09 4:12 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-08 4:41 [PATCH] ASoC: simple-card-utils: fix graph_util_is_ports0() for DT overlays Sen Wang
2026-03-09 0:40 ` Kuninori Morimoto
2026-03-09 4:12 ` Sen Wang [this message]
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