Unverified Commit 72ad25ea authored by Srinivas Kandagatla's avatar Srinivas Kandagatla Committed by Mark Brown
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ASoC: codecs: va-macro: add runtime pm support 



Add pm runtime support to VA Macro.

Signed-off-by: default avatarSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220224111718.6264-11-srinivas.kandagatla@linaro.org


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent eaba1134

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

+41 −0
Original line number Diff line number Diff line
@@ -9,6 +9,7 @@ 
#include <linux/of_clk.h>

#include <linux/of_platform.h>

#include <linux/platform_device.h>

#include <linux/pm_runtime.h>

#include <linux/regmap.h>

#include <linux/regulator/consumer.h>

#include <sound/soc.h>
@@ -1469,6 +1470,12 @@ static int va_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:
@@ -1492,6 +1499,39 @@ static int va_macro_remove(struct platform_device *pdev) 
	return 0;

}



static int __maybe_unused va_macro_runtime_suspend(struct device *dev)

{

	struct va_macro *va = dev_get_drvdata(dev);



	regcache_cache_only(va->regmap, true);

	regcache_mark_dirty(va->regmap);



	clk_disable_unprepare(va->mclk);



	return 0;

}



static int __maybe_unused va_macro_runtime_resume(struct device *dev)

{

	struct va_macro *va = dev_get_drvdata(dev);

	int ret;



	ret = clk_prepare_enable(va->mclk);

	if (ret) {

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

		return ret;

	}



	regcache_cache_only(va->regmap, false);

	regcache_sync(va->regmap);

	return 0;

}





static const struct dev_pm_ops va_macro_pm_ops = {

	SET_RUNTIME_PM_OPS(va_macro_runtime_suspend, va_macro_runtime_resume, NULL)

};



static const struct of_device_id va_macro_dt_match[] = {

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

	{ .compatible = "qcom,sm8250-lpass-va-macro" },
@@ -1504,6 +1544,7 @@ static struct platform_driver va_macro_driver = { 
		.name = "va_macro",

		.of_match_table = va_macro_dt_match,

		.suppress_bind_attrs = true,

		.pm = &va_macro_pm_ops,

	},

	.probe = va_macro_probe,

	.remove = va_macro_remove,