Unverified Commit 1fb83bc5 authored by Srinivas Kandagatla's avatar Srinivas Kandagatla Committed by Mark Brown
Browse files

ASoC: codecs: tx-macro: add runtime pm support 



Signed-off-by: default avatarSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220224111718.6264-14-srinivas.kandagatla@linaro.org


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 366ff79e

sound/soc/codecs/lpass-tx-macro.c

+61 −0
Original line number Diff line number Diff line
@@ -1881,6 +1881,12 @@ static int tx_macro_probe(struct platform_device *pdev) 
	if (ret)

		goto err_clkout;



	pm_runtime_set_autosuspend_delay(dev, 3000);

	pm_runtime_use_autosuspend(dev);

	pm_runtime_mark_last_busy(dev);

	pm_runtime_set_active(dev);

	pm_runtime_enable(dev);



	return 0;



err_clkout:
@@ -1910,6 +1916,60 @@ static int tx_macro_remove(struct platform_device *pdev) 
	return 0;

}



static int __maybe_unused tx_macro_runtime_suspend(struct device *dev)

{

	struct tx_macro *tx = dev_get_drvdata(dev);



	regcache_cache_only(tx->regmap, true);

	regcache_mark_dirty(tx->regmap);



	clk_disable_unprepare(tx->mclk);

	clk_disable_unprepare(tx->npl);

	clk_disable_unprepare(tx->fsgen);



	return 0;

}



static int __maybe_unused tx_macro_runtime_resume(struct device *dev)

{

	struct tx_macro *tx = dev_get_drvdata(dev);

	int ret;



	ret = clk_prepare_enable(tx->mclk);

	if (ret) {

		dev_err(dev, "unable to prepare mclk\n");

		return ret;

	}



	ret = clk_prepare_enable(tx->npl);

	if (ret) {

		dev_err(dev, "unable to prepare npl\n");

		goto err_npl;

	}



	ret = clk_prepare_enable(tx->fsgen);

	if (ret) {

		dev_err(dev, "unable to prepare fsgen\n");

		goto err_fsgen;

	}



	regcache_cache_only(tx->regmap, false);

	regcache_sync(tx->regmap);

	tx->reset_swr = true;



	return 0;

err_fsgen:

	clk_disable_unprepare(tx->npl);

err_npl:

	clk_disable_unprepare(tx->mclk);



	return ret;

}



static const struct dev_pm_ops tx_macro_pm_ops = {

	SET_RUNTIME_PM_OPS(tx_macro_runtime_suspend, tx_macro_runtime_resume, NULL)

};



static const struct of_device_id tx_macro_dt_match[] = {

	{ .compatible = "qcom,sc7280-lpass-tx-macro" },

	{ .compatible = "qcom,sm8250-lpass-tx-macro" },
@@ -1921,6 +1981,7 @@ static struct platform_driver tx_macro_driver = { 
		.name = "tx_macro",

		.of_match_table = tx_macro_dt_match,

		.suppress_bind_attrs = true,

		.pm = &tx_macro_pm_ops,

	},

	.probe = tx_macro_probe,

	.remove = tx_macro_remove,