diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/qcom/lpass-sc7180.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/sound/soc/qcom/lpass-sc7180.c b/sound/soc/qcom/lpass-sc7180.c index 24a1c121cb2e..9c3365ddc274 100644 --- a/sound/soc/qcom/lpass-sc7180.c +++ b/sound/soc/qcom/lpass-sc7180.c @@ -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, |