Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
---
sound/soc/codecs/lpass-rx-macro.c | 45 ++++++++++++++++++++++++++++++-
1 file changed, 44 insertions(+), 1 deletion(-)
diff --git a/sound/soc/codecs/lpass-rx-macro.c b/sound/soc/codecs/lpass-rx-macro.c
index 0ed032b220a4..fb5d4bb8bd8b 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>
@@ -3568,8 +3569,17 @@ static int rx_macro_probe(struct platform_device *pdev)
rx_macro_dai,
ARRAY_SIZE(rx_macro_dai));
if (ret)
- clk_bulk_disable_unprepare(RX_NUM_CLKS_MAX, rx->clks);
+ 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(RX_NUM_CLKS_MAX, rx->clks);
return ret;
}
@@ -3589,11 +3599,44 @@ 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->clks[2].clk);
+ clk_disable_unprepare(rx->clks[3].clk);
+ clk_disable_unprepare(rx->clks[4].clk);
+
+ return 0;
+}
+
+static int __maybe_unused rx_macro_runtime_resume(struct device *dev)
+{
+ struct rx_macro *rx = dev_get_drvdata(dev);
+
+ clk_prepare_enable(rx->clks[2].clk);
+ clk_prepare_enable(rx->clks[3].clk);
+ clk_prepare_enable(rx->clks[4].clk);
+ regcache_cache_only(rx->regmap, false);
+ regcache_sync(rx->regmap);
+ rx->reset_swr = true;
+
+ return 0;
+}
+
+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,
--
2.21.0
