From a3a96e93cc888c652e47e4d7346abe99b1b44c53 Mon Sep 17 00:00:00 2001 From: Srinivasa Rao Mandadapu Date: Tue, 29 Nov 2022 12:06:24 +0530 Subject: [PATCH] ASoC: qcom: lpass-sc7280: Add system suspend/resume PM ops 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 Tested-by: Rahul Ajmeriya Link: https://lore.kernel.org/r/1669703784-27589-1-git-send-email-quic_srivasam@quicinc.com Signed-off-by: Mark Brown --- sound/soc/qcom/lpass-sc7280.c | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-) diff --git a/sound/soc/qcom/lpass-sc7280.c b/sound/soc/qcom/lpass-sc7280.c index 70c4df87d957..65a04d341859 100644 --- a/sound/soc/qcom/lpass-sc7280.c +++ b/sound/soc/qcom/lpass-sc7280.c @@ -232,10 +232,27 @@ 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 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 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 +443,7 @@ 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,