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ASoC: fsl_sai: Add support for runtime pm 

Basically the same actions as for system PM, so make use
of pm_runtime_force_suspend/pm_runtime_force_resume.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Daniel Baluta 2019-04-21 19:39:09 +00:00 committed by Mark Brown
parent ddb351145a
commit 812ad463e0
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 17 additions and 5 deletions
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22
sound/soc/fsl/fsl_sai.c
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@ -9,6 +9,7 @@
#include <linux/dmaengine.h> #include <linux/dmaengine.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/of_address.h> #include <linux/of_address.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h> #include <linux/regmap.h>
#include <linux/slab.h> #include <linux/slab.h>
#include <linux/time.h> #include <linux/time.h>
@ -901,6 +902,8 @@ static int fsl_sai_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, sai); platform_set_drvdata(pdev, sai);
pm_runtime_enable(&pdev->dev);
ret = devm_snd_soc_register_component(&pdev->dev, &fsl_component, ret = devm_snd_soc_register_component(&pdev->dev, &fsl_component,
&fsl_sai_dai, 1); &fsl_sai_dai, 1);
if (ret) if (ret)
@ -912,6 +915,11 @@ static int fsl_sai_probe(struct platform_device *pdev)
return devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0); return devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
} }
static int fsl_sai_remove(struct platform_device *pdev)
{
pm_runtime_disable(&pdev->dev);
}
static const struct of_device_id fsl_sai_ids[] = { static const struct of_device_id fsl_sai_ids[] = {
{ .compatible = "fsl,vf610-sai", }, { .compatible = "fsl,vf610-sai", },
{ .compatible = "fsl,imx6sx-sai", }, { .compatible = "fsl,imx6sx-sai", },
@ -920,8 +928,8 @@ static const struct of_device_id fsl_sai_ids[] = {
}; };
MODULE_DEVICE_TABLE(of, fsl_sai_ids); MODULE_DEVICE_TABLE(of, fsl_sai_ids);
#ifdef CONFIG_PM_SLEEP #ifdef CONFIG_PM
static int fsl_sai_suspend(struct device *dev) static int fsl_sai_runtime_suspend(struct device *dev)
{ {
struct fsl_sai *sai = dev_get_drvdata(dev); struct fsl_sai *sai = dev_get_drvdata(dev);
@ -931,7 +939,7 @@ static int fsl_sai_suspend(struct device *dev)
return 0; return 0;
} }
static int fsl_sai_resume(struct device *dev) static int fsl_sai_runtime_resume(struct device *dev)
{ {
struct fsl_sai *sai = dev_get_drvdata(dev); struct fsl_sai *sai = dev_get_drvdata(dev);
@ -943,14 +951,18 @@ static int fsl_sai_resume(struct device *dev)
regmap_write(sai->regmap, FSL_SAI_RCSR, 0); regmap_write(sai->regmap, FSL_SAI_RCSR, 0);
return regcache_sync(sai->regmap); return regcache_sync(sai->regmap);
} }
#endif /* CONFIG_PM_SLEEP */ #endif /* CONFIG_PM */
static const struct dev_pm_ops fsl_sai_pm_ops = { static const struct dev_pm_ops fsl_sai_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(fsl_sai_suspend, fsl_sai_resume) SET_RUNTIME_PM_OPS(fsl_sai_runtime_suspend,
fsl_sai_runtime_resume, NULL)
SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
pm_runtime_force_resume)
}; };
static struct platform_driver fsl_sai_driver = { static struct platform_driver fsl_sai_driver = {
.probe = fsl_sai_probe, .probe = fsl_sai_probe,
.remove = fsl_sai_remove,
.driver = { .driver = {
.name = "fsl-sai", .name = "fsl-sai",
.pm = &fsl_sai_pm_ops, .pm = &fsl_sai_pm_ops,