Update lpass sc7280 platform driver with PM ops, such as
system supend and resume callbacks.
This update is required to disable clocks during supend and
avoid XO shutdown issue.
Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@xxxxxxxxxxx>
Tested-by: Rahul Ajmeriya <quic_rajmeriy@xxxxxxxxxxx>
---
Changes since v1:
-- Add __maybe_unused flag for suspend/resume APIs.
sound/soc/qcom/lpass-sc7280.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/sound/soc/qcom/lpass-sc7280.c b/sound/soc/qcom/lpass-sc7280.c
index 70c4df8..d43f480 100644
--- a/sound/soc/qcom/lpass-sc7280.c
+++ b/sound/soc/qcom/lpass-sc7280.c
@@ -232,10 +232,28 @@ static int sc7280_lpass_exit(struct platform_device *pdev)
struct lpass_data *drvdata = platform_get_drvdata(pdev);
clk_bulk_disable_unprepare(drvdata->num_clks, drvdata->clks);
+ return 0;
+}
+
+static int __maybe_unused sc7280_lpass_dev_resume(struct device *dev)
+{
+ struct lpass_data *drvdata = dev_get_drvdata(dev);
+
+ return clk_bulk_prepare_enable(drvdata->num_clks, drvdata->clks);
+}
+static int __maybe_unused sc7280_lpass_dev_suspend(struct device *dev)
+{
+ struct lpass_data *drvdata = dev_get_drvdata(dev);
+
+ clk_bulk_disable_unprepare(drvdata->num_clks, drvdata->clks);
return 0;
}
+static const struct dev_pm_ops sc7280_lpass_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(sc7280_lpass_dev_suspend, sc7280_lpass_dev_resume)
+};
+
static struct lpass_variant sc7280_data = {
.i2sctrl_reg_base = 0x1000,
.i2sctrl_reg_stride = 0x1000,
@@ -426,6 +444,7 @@ static struct platform_driver sc7280_lpass_cpu_platform_driver = {
.driver = {
.name = "sc7280-lpass-cpu",
.of_match_table = of_match_ptr(sc7280_lpass_cpu_device_id),
+ .pm = &sc7280_lpass_pm_ops,
},
.probe = asoc_qcom_lpass_cpu_platform_probe,
.remove = asoc_qcom_lpass_cpu_platform_remove,
--
2.7.4
