[PATCH v1] clk: qcom: lpasscc: Introduce pm autosuspend for SC7180

From: Taniya Das
Date: Fri Nov 20 2020 - 11:40:41 EST


The LPASSCC driver's suspend/resume is invoked multiple number of times
and thus allow the device to autosuspend for 500ms.

Signed-off-by: Taniya Das <tdas@xxxxxxxxxxxxxx>
---
drivers/clk/qcom/lpasscorecc-sc7180.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/qcom/lpasscorecc-sc7180.c b/drivers/clk/qcom/lpasscorecc-sc7180.c
index 9081649..2e0ecc3 100644
--- a/drivers/clk/qcom/lpasscorecc-sc7180.c
+++ b/drivers/clk/qcom/lpasscorecc-sc7180.c
@@ -370,7 +370,10 @@ static int lpass_create_pm_clks(struct platform_device *pdev)
{
int ret;

+ pm_runtime_use_autosuspend(&pdev->dev);
+ pm_runtime_set_autosuspend_delay(&pdev->dev, 500);
pm_runtime_enable(&pdev->dev);
+
ret = devm_add_action_or_reset(&pdev->dev, lpass_pm_runtime_disable, &pdev->dev);
if (ret)
return ret;
@@ -423,7 +426,12 @@ static int lpass_core_cc_sc7180_probe(struct platform_device *pdev)
clk_fabia_pll_configure(&lpass_lpaaudio_dig_pll, regmap,
&lpass_lpaaudio_dig_pll_config);

- return qcom_cc_really_probe(pdev, &lpass_core_cc_sc7180_desc, regmap);
+ ret = qcom_cc_really_probe(pdev, &lpass_core_cc_sc7180_desc, regmap);
+
+ pm_runtime_mark_last_busy(&pdev->dev);
+ pm_runtime_put_autosuspend(&pdev->dev);
+
+ return ret;
}

static int lpass_hm_core_probe(struct platform_device *pdev)
--
Qualcomm INDIA, on behalf of Qualcomm Innovation Center, Inc.is a member
of the Code Aurora Forum, hosted by the Linux Foundation.