When there is power domain bind with bus clock,
The call flow:
devm_regmap_init_mmio_clk
- clk_prepare()
- clk_pm_runtime_get()
cause the power domain of clock always be enabled after
regmap_init(). which impact the power consumption.
So use devm_regmap_init_mmio instead of
devm_regmap_init_mmio_clk,but explicitly enable
clock when it is used.
Signed-off-by: Shengjiu Wang <[email protected]>
---
sound/soc/fsl/fsl_esai.c | 48 ++++++++++++++++++++++++++++++----------
1 file changed, 36 insertions(+), 12 deletions(-)
diff --git a/sound/soc/fsl/fsl_esai.c b/sound/soc/fsl/fsl_esai.c
index 41b154417b92..c0d4f3c5dbb1 100644
--- a/sound/soc/fsl/fsl_esai.c
+++ b/sound/soc/fsl/fsl_esai.c
@@ -945,6 +945,9 @@ static const struct regmap_config fsl_esai_regmap_config = {
.cache_type = REGCACHE_FLAT,
};
+static int fsl_esai_runtime_resume(struct device *dev);
+static int fsl_esai_runtime_suspend(struct device *dev);
+
static int fsl_esai_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
@@ -969,8 +972,7 @@ static int fsl_esai_probe(struct platform_device *pdev)
if (IS_ERR(regs))
return PTR_ERR(regs);
- esai_priv->regmap = devm_regmap_init_mmio_clk(&pdev->dev,
- "core", regs, &fsl_esai_regmap_config);
+ esai_priv->regmap = devm_regmap_init_mmio(&pdev->dev, regs, &fsl_esai_regmap_config);
if (IS_ERR(esai_priv->regmap)) {
dev_err(&pdev->dev, "failed to init regmap: %ld\n",
PTR_ERR(esai_priv->regmap));
@@ -1039,11 +1041,23 @@ static int fsl_esai_probe(struct platform_device *pdev)
}
dev_set_drvdata(&pdev->dev, esai_priv);
-
spin_lock_init(&esai_priv->lock);
+ pm_runtime_enable(&pdev->dev);
+ if (!pm_runtime_enabled(&pdev->dev)) {
+ ret = fsl_esai_runtime_resume(&pdev->dev);
+ if (ret)
+ goto err_pm_disable;
+ }
+
+ ret = pm_runtime_get_sync(&pdev->dev);
+ if (ret < 0) {
+ pm_runtime_put_noidle(&pdev->dev);
+ goto err_pm_get_sync;
+ }
+
ret = fsl_esai_hw_init(esai_priv);
if (ret)
- return ret;
+ goto err_pm_get_sync;
esai_priv->tx_mask = 0xFFFFFFFF;
esai_priv->rx_mask = 0xFFFFFFFF;
@@ -1054,24 +1068,33 @@ static int fsl_esai_probe(struct platform_device *pdev)
regmap_write(esai_priv->regmap, REG_ESAI_RSMA, 0);
regmap_write(esai_priv->regmap, REG_ESAI_RSMB, 0);
+ ret = pm_runtime_put_sync(&pdev->dev);
+ if (ret < 0)
+ goto err_pm_get_sync;
+
ret = devm_snd_soc_register_component(&pdev->dev, &fsl_esai_component,
&fsl_esai_dai, 1);
if (ret) {
dev_err(&pdev->dev, "failed to register DAI: %d\n", ret);
- return ret;
+ goto err_pm_get_sync;
}
INIT_WORK(&esai_priv->work, fsl_esai_hw_reset);
- pm_runtime_enable(&pdev->dev);
-
- regcache_cache_only(esai_priv->regmap, true);
-
ret = imx_pcm_dma_init(pdev, IMX_ESAI_DMABUF_SIZE);
- if (ret)
+ if (ret) {
dev_err(&pdev->dev, "failed to init imx pcm dma: %d\n", ret);
+ goto err_pm_get_sync;
+ }
return ret;
+
+err_pm_get_sync:
+ if (!pm_runtime_status_suspended(&pdev->dev))
+ fsl_esai_runtime_suspend(&pdev->dev);
+err_pm_disable:
+ pm_runtime_disable(&pdev->dev);
+ return ret;
}
static int fsl_esai_remove(struct platform_device *pdev)
@@ -1079,6 +1102,9 @@ static int fsl_esai_remove(struct platform_device *pdev)
struct fsl_esai *esai_priv = platform_get_drvdata(pdev);
pm_runtime_disable(&pdev->dev);
+ if (!pm_runtime_status_suspended(&pdev->dev))
+ fsl_esai_runtime_suspend(&pdev->dev);
+
cancel_work_sync(&esai_priv->work);
return 0;
@@ -1092,7 +1118,6 @@ static const struct of_device_id fsl_esai_dt_ids[] = {
};
MODULE_DEVICE_TABLE(of, fsl_esai_dt_ids);
-#ifdef CONFIG_PM
static int fsl_esai_runtime_resume(struct device *dev)
{
struct fsl_esai *esai = dev_get_drvdata(dev);
@@ -1160,7 +1185,6 @@ static int fsl_esai_runtime_suspend(struct device *dev)
return 0;
}
-#endif /* CONFIG_PM */
static const struct dev_pm_ops fsl_esai_pm_ops = {
SET_RUNTIME_PM_OPS(fsl_esai_runtime_suspend,
--
2.27.0