Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org --- sound/soc/codecs/lpass-wsa-macro.c | 39 ++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+)
diff --git a/sound/soc/codecs/lpass-wsa-macro.c b/sound/soc/codecs/lpass-wsa-macro.c index 21a4b8cc4a0a..a8d30f3b3fdf 100644 --- a/sound/soc/codecs/lpass-wsa-macro.c +++ b/sound/soc/codecs/lpass-wsa-macro.c @@ -10,6 +10,7 @@ #include <linux/clk-provider.h> #include <sound/soc.h> #include <sound/soc-dapm.h> +#include <linux/pm_runtime.h> #include <linux/of_platform.h> #include <sound/tlv.h> #include "lpass-wsa-macro.h" @@ -2429,6 +2430,12 @@ static int wsa_macro_probe(struct platform_device *pdev) if (ret) goto err;
+ 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 ret; err: clk_bulk_disable_unprepare(WSA_NUM_CLKS_MAX, wsa->clks); @@ -2446,6 +2453,37 @@ static int wsa_macro_remove(struct platform_device *pdev) return 0; }
+static int __maybe_unused wsa_macro_runtime_suspend(struct device *dev) +{ + struct wsa_macro *wsa = dev_get_drvdata(dev); + + regcache_cache_only(wsa->regmap, true); + regcache_mark_dirty(wsa->regmap); + + clk_disable_unprepare(wsa->clks[2].clk); + clk_disable_unprepare(wsa->clks[3].clk); + clk_disable_unprepare(wsa->clks[4].clk); + + return 0; +} + +static int __maybe_unused wsa_macro_runtime_resume(struct device *dev) +{ + struct wsa_macro *wsa = dev_get_drvdata(dev); + + clk_prepare_enable(wsa->clks[2].clk); + clk_prepare_enable(wsa->clks[3].clk); + clk_prepare_enable(wsa->clks[4].clk); + regcache_cache_only(wsa->regmap, false); + regcache_sync(wsa->regmap); + + return 0; +} + +static const struct dev_pm_ops wsa_macro_pm_ops = { + SET_RUNTIME_PM_OPS(wsa_macro_runtime_suspend, wsa_macro_runtime_resume, NULL) +}; + static const struct of_device_id wsa_macro_dt_match[] = { {.compatible = "qcom,sc7280-lpass-wsa-macro"}, {.compatible = "qcom,sm8250-lpass-wsa-macro"}, @@ -2457,6 +2495,7 @@ static struct platform_driver wsa_macro_driver = { .driver = { .name = "wsa_macro", .of_match_table = wsa_macro_dt_match, + .pm = &wsa_macro_pm_ops, }, .probe = wsa_macro_probe, .remove = wsa_macro_remove,