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

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Add pm runtime support to VA Macro.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220224111718.6264-11-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Srinivas Kandagatla 2022-02-24 11:17:12 +00:00 committed by Mark Brown
parent eaba113430
commit 72ad25eabd
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1 changed files with 41 additions and 0 deletions
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41
sound/soc/codecs/lpass-va-macro.c
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@ -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,