diff options
Diffstat (limited to 'sound/soc/qcom/lpass-sc7180.c')
| -rw-r--r-- | sound/soc/qcom/lpass-sc7180.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/sound/soc/qcom/lpass-sc7180.c b/sound/soc/qcom/lpass-sc7180.c index 77a556b27cf0..41db6617e2ed 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> @@ -131,6 +132,9 @@ static int sc7180_lpass_init(struct platform_device *pdev) drvdata->clks = devm_kcalloc(dev, variant->num_clks, sizeof(*drvdata->clks), GFP_KERNEL); + if (!drvdata->clks) + return -ENOMEM; + drvdata->num_clks = variant->num_clks; for (i = 0; i < drvdata->num_clks; i++) @@ -156,10 +160,28 @@ 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 __maybe_unused sc7180_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 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, @@ -293,6 +315,7 @@ 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, |