diff options
| author | Srinivas Kandagatla <srinivas.kandagatla@linaro.org> | 2022-02-24 14:17:14 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-02-25 16:51:10 +0300 |
| commit | 366ff79ed5392ac518fd43cb44f82f63b87c313e (patch) | |
| tree | 13aea3e628dcd1a4160fb406a9481f07d4a943b7 /sound/soc/codecs/lpass-rx-macro.c | |
| parent | c96baa2949b245da7e0d0e9e2a44cd4471c9f303 (diff) | |
| download | linux-366ff79ed5392ac518fd43cb44f82f63b87c313e.tar.xz | |
ASoC: codecs: rx-macro: add runtime pm support
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>
Diffstat (limited to 'sound/soc/codecs/lpass-rx-macro.c')
| -rw-r--r-- | sound/soc/codecs/lpass-rx-macro.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/sound/soc/codecs/lpass-rx-macro.c b/sound/soc/codecs/lpass-rx-macro.c index 65fc3698492f..58dc86756804 100644 --- a/sound/soc/codecs/lpass-rx-macro.c +++ b/sound/soc/codecs/lpass-rx-macro.c @@ -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, |