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ASoC: rockchip: sai: Handle HCLK with runtime PM

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This patch handle HCLK with runtime PM to save a little
bit of power consumption.

Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
Change-Id: I4ab16fd21d592245a0d0eb2240740f0a90403f0a
This commit is contained in:
Sugar Zhang
2023-02-08 15:20:29 +08:00
parent b6de31a022
commit c1770bf251
1 changed files with 7 additions and 9 deletions
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sound/soc/rockchip/rockchip_sai.c
+7 -9
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@@ -72,6 +72,7 @@ static int sai_runtime_suspend(struct device *dev)
regcache_cache_only(sai->regmap, true);
clk_disable_unprepare(sai->mclk);
clk_disable_unprepare(sai->hclk);
return 0;
}
@@ -81,6 +82,10 @@ static int sai_runtime_resume(struct device *dev)
struct rk_sai_dev *sai = dev_get_drvdata(dev);
int ret;
ret = clk_prepare_enable(sai->hclk);
if (ret)
goto err_hclk;
ret = clk_prepare_enable(sai->mclk);
if (ret)
goto err_mclk;
@@ -103,6 +108,8 @@ static int sai_runtime_resume(struct device *dev)
err_regmap:
clk_disable_unprepare(sai->mclk);
err_mclk:
clk_disable_unprepare(sai->hclk);
err_hclk:
return ret;
}
@@ -1110,10 +1117,6 @@ static int rockchip_sai_probe(struct platform_device *pdev)
return PTR_ERR(sai->hclk);
}
ret = clk_prepare_enable(sai->hclk);
if (ret)
return ret;
pm_runtime_enable(&pdev->dev);
if (!pm_runtime_enabled(&pdev->dev)) {
ret = sai_runtime_resume(&pdev->dev);
@@ -1142,21 +1145,16 @@ err_runtime_suspend:
sai_runtime_suspend(&pdev->dev);
err_runtime_disable:
pm_runtime_disable(&pdev->dev);
clk_disable_unprepare(sai->hclk);
return ret;
}
static int rockchip_sai_remove(struct platform_device *pdev)
{
struct rk_sai_dev *sai = dev_get_drvdata(&pdev->dev);
pm_runtime_disable(&pdev->dev);
if (!pm_runtime_status_suspended(&pdev->dev))
sai_runtime_suspend(&pdev->dev);
clk_disable_unprepare(sai->hclk);
return 0;
}