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ASoC: qcom: lpass-sc7180: Add system suspend/resume PM ops

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Update lpass sc7180 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@quicinc.com>
Tested-by: Rahul Ajmeriya <quic_rajmeriy@quicinc.com>
Link: https://lore.kernel.org/r/1669621742-28524-1-git-send-email-quic_srivasam@quicinc.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Srinivasa Rao Mandadapu 2022-11-28 13:19:02 +05:30 committed by Mark Brown
parent 5fabcc90e7
commit 2d68148f8f
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 27 additions and 1 deletions
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28
sound/soc/qcom/lpass-sc7180.c
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@ -12,6 +12,7 @@
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <dt-bindings/sound/sc7180-lpass.h>
#include <sound/pcm.h>
#include <sound/soc.h>
@ -159,10 +160,34 @@ static int sc7180_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 sc7180_lpass_dev_resume(struct device *dev)
{
int ret = 0;
struct lpass_data *drvdata = dev_get_drvdata(dev);
ret = clk_bulk_prepare_enable(drvdata->num_clks, drvdata->clks);
if (ret) {
dev_err(dev, "sc7180 clk prepare and enable failed\n");
return ret;
}
return ret;
}
static int sc7180_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 sc7180_lpass_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(sc7180_lpass_dev_suspend, sc7180_lpass_dev_resume)
};
static struct lpass_variant sc7180_data = {
.i2sctrl_reg_base = 0x1000,
.i2sctrl_reg_stride = 0x1000,
@ -296,6 +321,7 @@ static struct platform_driver sc7180_lpass_cpu_platform_driver = {
.driver = {
.name = "sc7180-lpass-cpu",
.of_match_table = of_match_ptr(sc7180_lpass_cpu_device_id),
.pm = &sc7180_lpass_pm_ops,
},
.probe = asoc_qcom_lpass_cpu_platform_probe,
.remove = asoc_qcom_lpass_cpu_platform_remove,