linux-kernel - [PATCH v2 2/2] ASoC: sunxi: sun4i-codec: set debugfs

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Message-Id: <20220913212256.151799-2-mike.rudenko@gmail.com>
Date:   Wed, 14 Sep 2022 00:22:55 +0300
From:   Mikhail Rudenko <mike.rudenko@...il.com>
To:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Samuel Holland <samuel@...lland.org>,
        Charles Keepax <ckeepax@...nsource.cirrus.com>,
        Li Chen <lchen@...arella.com>,
        Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
Cc:     Mikhail Rudenko <mike.rudenko@...il.com>,
        alsa-devel@...a-project.org, linux-arm-kernel@...ts.infradead.org,
        linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/2] ASoC: sunxi: sun4i-codec: set debugfs_prefix for CPU DAI component

At present, succesfull probing of H3 Codec results in an error

    debugfs: Directory '1c22c00.codec' with parent 'H3 Audio Codec' already present!

This is caused by a directory name conflict between codec
components. Fix it by setting debugfs_prefix for the CPU DAI
component.

Signed-off-by: Mikhail Rudenko <mike.rudenko@...il.com>
---
changes in v2:
- rebase against current tree
- add #ifdef CONFIG_DEBUG_FS guard
- change prefix from "dai" to more specific "cpu"

 sound/soc/sunxi/sun4i-codec.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c
index 3a7075d03c23..835dc3404367 100644
--- a/sound/soc/sunxi/sun4i-codec.c
+++ b/sound/soc/sunxi/sun4i-codec.c
@@ -1232,6 +1232,9 @@ static const struct snd_soc_component_driver sun8i_a23_codec_codec = {
 static const struct snd_soc_component_driver sun4i_codec_component = {
 	.name			= "sun4i-codec",
 	.legacy_dai_naming	= 1,
+#ifdef CONFIG_DEBUG_FS
+	.debugfs_prefix		= "cpu",
+#endif
 };

 #define SUN4I_CODEC_RATES	SNDRV_PCM_RATE_CONTINUOUS
--
2.37.3