Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org --- sound/soc/codecs/lpass-tx-macro.c | 61 +++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+)
diff --git a/sound/soc/codecs/lpass-tx-macro.c b/sound/soc/codecs/lpass-tx-macro.c index b32235a9e1e5..2b2b93ddb4d6 100644 --- a/sound/soc/codecs/lpass-tx-macro.c +++ b/sound/soc/codecs/lpass-tx-macro.c @@ -1887,6 +1887,12 @@ static int tx_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: @@ -1916,6 +1922,60 @@ static int tx_macro_remove(struct platform_device *pdev) return 0; }
+static int __maybe_unused tx_macro_runtime_suspend(struct device *dev) +{ + struct tx_macro *tx = dev_get_drvdata(dev); + + regcache_cache_only(tx->regmap, true); + regcache_mark_dirty(tx->regmap); + + clk_disable_unprepare(tx->mclk); + clk_disable_unprepare(tx->npl); + clk_disable_unprepare(tx->fsgen); + + return 0; +} + +static int __maybe_unused tx_macro_runtime_resume(struct device *dev) +{ + struct tx_macro *tx = dev_get_drvdata(dev); + int ret; + + ret = clk_prepare_enable(tx->mclk); + if (ret) { + dev_err(dev, "unable to prepare mclk\n"); + return ret; + } + + ret = clk_prepare_enable(tx->npl); + if (ret) { + dev_err(dev, "unable to prepare npl\n"); + goto err_npl; + } + + ret = clk_prepare_enable(tx->fsgen); + if (ret) { + dev_err(dev, "unable to prepare fsgen\n"); + goto err_fsgen; + } + + regcache_cache_only(tx->regmap, false); + regcache_sync(tx->regmap); + tx->reset_swr = true; + + return 0; +err_fsgen: + clk_disable_unprepare(tx->npl); +err_npl: + clk_disable_unprepare(tx->mclk); + + return ret; +} + +static const struct dev_pm_ops tx_macro_pm_ops = { + SET_RUNTIME_PM_OPS(tx_macro_runtime_suspend, tx_macro_runtime_resume, NULL) +}; + static const struct of_device_id tx_macro_dt_match[] = { { .compatible = "qcom,sc7280-lpass-tx-macro" }, { .compatible = "qcom,sm8250-lpass-tx-macro" }, @@ -1927,6 +1987,7 @@ static struct platform_driver tx_macro_driver = { .name = "tx_macro", .of_match_table = tx_macro_dt_match, .suppress_bind_attrs = true, + .pm = &tx_macro_pm_ops, }, .probe = tx_macro_probe, .remove = tx_macro_remove,