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ASoC: meson: spdifin: start hw on dai probe
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[ Upstream commit aedf323 ]

For spdif input to report the locked rate correctly, even when no capture
is running, the HW and reference clock must be started as soon as
the dai is probed.

Fixes: 5ce5658 ("ASoC: meson: add axg spdif input")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20230907090504.12700-1-jbrunet@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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jbrun3t authored and gregkh committed Oct 6, 2023
1 parent 7e5d732 commit 7a7fd89
Showing 1 changed file with 17 additions and 32 deletions.
49 changes: 17 additions & 32 deletions sound/soc/meson/axg-spdifin.c
Original file line number Diff line number Diff line change
Expand Up @@ -112,34 +112,6 @@ static int axg_spdifin_prepare(struct snd_pcm_substream *substream,
return 0;
}

static int axg_spdifin_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct axg_spdifin *priv = snd_soc_dai_get_drvdata(dai);
int ret;

ret = clk_prepare_enable(priv->refclk);
if (ret) {
dev_err(dai->dev,
"failed to enable spdifin reference clock\n");
return ret;
}

regmap_update_bits(priv->map, SPDIFIN_CTRL0, SPDIFIN_CTRL0_EN,
SPDIFIN_CTRL0_EN);

return 0;
}

static void axg_spdifin_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct axg_spdifin *priv = snd_soc_dai_get_drvdata(dai);

regmap_update_bits(priv->map, SPDIFIN_CTRL0, SPDIFIN_CTRL0_EN, 0);
clk_disable_unprepare(priv->refclk);
}

static void axg_spdifin_write_mode_param(struct regmap *map, int mode,
unsigned int val,
unsigned int num_per_reg,
Expand Down Expand Up @@ -251,25 +223,38 @@ static int axg_spdifin_dai_probe(struct snd_soc_dai *dai)
ret = axg_spdifin_sample_mode_config(dai, priv);
if (ret) {
dev_err(dai->dev, "mode configuration failed\n");
clk_disable_unprepare(priv->pclk);
return ret;
goto pclk_err;
}

ret = clk_prepare_enable(priv->refclk);
if (ret) {
dev_err(dai->dev,
"failed to enable spdifin reference clock\n");
goto pclk_err;
}

regmap_update_bits(priv->map, SPDIFIN_CTRL0, SPDIFIN_CTRL0_EN,
SPDIFIN_CTRL0_EN);

return 0;

pclk_err:
clk_disable_unprepare(priv->pclk);
return ret;
}

static int axg_spdifin_dai_remove(struct snd_soc_dai *dai)
{
struct axg_spdifin *priv = snd_soc_dai_get_drvdata(dai);

regmap_update_bits(priv->map, SPDIFIN_CTRL0, SPDIFIN_CTRL0_EN, 0);
clk_disable_unprepare(priv->refclk);
clk_disable_unprepare(priv->pclk);
return 0;
}

static const struct snd_soc_dai_ops axg_spdifin_ops = {
.prepare = axg_spdifin_prepare,
.startup = axg_spdifin_startup,
.shutdown = axg_spdifin_shutdown,
};

static int axg_spdifin_iec958_info(struct snd_kcontrol *kcontrol,
Expand Down

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