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

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Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220224111718.6264-13-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Srinivas Kandagatla 2022-02-24 11:17:14 +00:00 committed by Mark Brown
parent c96baa2949
commit 366ff79ed5
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GPG Key ID: 24D68B725D5487D0
1 changed files with 62 additions and 0 deletions
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62
sound/soc/codecs/lpass-rx-macro.c
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@ -5,6 +5,7 @@
#include <linux/init.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/clk.h>
#include <sound/soc.h>
#include <sound/pcm.h>
@ -3601,6 +3602,13 @@ static int rx_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:
@ -3637,11 +3645,65 @@ static const struct of_device_id rx_macro_dt_match[] = {
};
MODULE_DEVICE_TABLE(of, rx_macro_dt_match);
static int __maybe_unused rx_macro_runtime_suspend(struct device *dev)
{
struct rx_macro *rx = dev_get_drvdata(dev);
regcache_cache_only(rx->regmap, true);
regcache_mark_dirty(rx->regmap);
clk_disable_unprepare(rx->mclk);
clk_disable_unprepare(rx->npl);
clk_disable_unprepare(rx->fsgen);
return 0;
}
static int __maybe_unused rx_macro_runtime_resume(struct device *dev)
{
struct rx_macro *rx = dev_get_drvdata(dev);
int ret;
ret = clk_prepare_enable(rx->mclk);
if (ret) {
dev_err(dev, "unable to prepare mclk\n");
return ret;
}
ret = clk_prepare_enable(rx->npl);
if (ret) {
dev_err(dev, "unable to prepare mclkx2\n");
goto err_npl;
}
ret = clk_prepare_enable(rx->fsgen);
if (ret) {
dev_err(dev, "unable to prepare fsgen\n");
goto err_fsgen;
}
regcache_cache_only(rx->regmap, false);
regcache_sync(rx->regmap);
rx->reset_swr = true;
return 0;
err_fsgen:
clk_disable_unprepare(rx->npl);
err_npl:
clk_disable_unprepare(rx->mclk);
return ret;
}
static const struct dev_pm_ops rx_macro_pm_ops = {
SET_RUNTIME_PM_OPS(rx_macro_runtime_suspend, rx_macro_runtime_resume, NULL)
};
static struct platform_driver rx_macro_driver = {
.driver = {
.name = "rx_macro",
.of_match_table = rx_macro_dt_match,
.suppress_bind_attrs = true,
.pm = &rx_macro_pm_ops,
},
.probe = rx_macro_probe,
.remove = rx_macro_remove,