linux-kernel - [RFC PATCH 11/34] ASoC: sun8i-codec: Enforce parameter symmetry

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Message-Id: <20200217064250.15516-12-samuel@sholland.org>
Date:   Mon, 17 Feb 2020 00:42:27 -0600
From:   Samuel Holland <samuel@...lland.org>
To:     Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Maxime Ripard <mripard@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Vasily Khoruzhick <anarsoul@...il.com>,
        Mylène Josserand 
        <mylene.josserand@...e-electrons.com>,
        Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
Cc:     alsa-devel@...a-project.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Samuel Holland <samuel@...lland.org>
Subject: [RFC PATCH 11/34] ASoC: sun8i-codec: Enforce parameter symmetry

Each of the codec's DAIs has a single set of parameters for its clock,
channels, and word size. If both capture and playback are active on a
single DAI, they must use compatible parameters. Set the symmetric_*
flags in the DAI driver to enforce this.

Signed-off-by: Samuel Holland <samuel@...lland.org>
---
 sound/soc/sunxi/sun8i-codec.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/sunxi/sun8i-codec.c b/sound/soc/sunxi/sun8i-codec.c
index bf12f5199e96..3d5ed2f4575a 100644
--- a/sound/soc/sunxi/sun8i-codec.c
+++ b/sound/soc/sunxi/sun8i-codec.c
@@ -534,6 +534,9 @@ static struct snd_soc_dai_driver sun8i_codec_dai = {
 	},
 	/* pcm operations */
 	.ops = &sun8i_codec_dai_ops,
+	.symmetric_rates = 1,
+	.symmetric_channels = 1,
+	.symmetric_samplebits = 1,
 };
 
 static const struct snd_soc_component_driver sun8i_soc_component = {
-- 
2.24.1