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ASoC: cros_ec_codec: Reset I2S RX when probing 

It is not guaranteed that I2S RX is disabled when the kernel booting.
For example, if the kernel crashes while it is enabled, it will keep
enabled until the next time EC reboots. Reset I2S RX when probing to
fix this issue.

Signed-off-by: Yu-Hsuan Hsu <yuhsuan@chromium.org>
Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Link: https://lore.kernel.org/r/20210115075301.47995-2-yuhsuan@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Yu-Hsuan Hsu 2021-01-15 15:53:01 +08:00 committed by Mark Brown
parent f4d3bd8be4
commit 7f1f7ae102
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1 changed files with 12 additions and 0 deletions
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12
sound/soc/codecs/cros_ec_codec.c
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@ -1011,6 +1011,18 @@ static int cros_ec_codec_platform_probe(struct platform_device *pdev)
}
priv->ec_capabilities = r.capabilities;
/* Reset EC codec i2s rx. */
p.cmd = EC_CODEC_I2S_RX_RESET;
ret = send_ec_host_command(priv->ec_device, EC_CMD_EC_CODEC_I2S_RX,
(uint8_t *)&p, sizeof(p), NULL, 0);
if (ret == -ENOPROTOOPT) {
dev_info(dev,
"Missing reset command. Please update EC firmware.\n");
} else if (ret) {
dev_err(dev, "failed to EC_CODEC_I2S_RESET: %d\n", ret);
return ret;
}
platform_set_drvdata(pdev, priv);
ret = devm_snd_soc_register_component(dev, &i2s_rx_component_driver,