Add pm runtime support to VA Macro.
Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org --- sound/soc/codecs/lpass-va-macro.c | 41 +++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+)
diff --git a/sound/soc/codecs/lpass-va-macro.c b/sound/soc/codecs/lpass-va-macro.c index ff8120886eca..34aeee50332a 100644 --- a/sound/soc/codecs/lpass-va-macro.c +++ b/sound/soc/codecs/lpass-va-macro.c @@ -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,