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dmaengine: dw: always export dw_dma_{en,dis}able

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Instead of conditional exporing of dw_dma_suspend() / dw_dma_resume() let's
export dw_dma_disable() / dw_dma_enable(). Since dw_dma_shutdown() repeats
dw_dma_disable() we may safely remove it at all.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Andy Shevchenko 2014-09-23 17:18:13 +03:00 committed by Vinod Koul
parent 7a83c04543
commit 2540f74b18
4 changed files with 12 additions and 30 deletions
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20
drivers/dma/dw/core.c
View File

@ -1687,35 +1687,23 @@ int dw_dma_remove(struct dw_dma_chip *chip)
}
EXPORT_SYMBOL_GPL(dw_dma_remove);
void dw_dma_shutdown(struct dw_dma_chip *chip)
{
struct dw_dma *dw = chip->dw;
dw_dma_off(dw);
}
EXPORT_SYMBOL_GPL(dw_dma_shutdown);
#ifdef CONFIG_PM_SLEEP
int dw_dma_suspend(struct dw_dma_chip *chip)
int dw_dma_disable(struct dw_dma_chip *chip)
{
struct dw_dma *dw = chip->dw;
dw_dma_off(dw);
return 0;
}
EXPORT_SYMBOL_GPL(dw_dma_suspend);
EXPORT_SYMBOL_GPL(dw_dma_disable);
int dw_dma_resume(struct dw_dma_chip *chip)
int dw_dma_enable(struct dw_dma_chip *chip)
{
struct dw_dma *dw = chip->dw;
dw_dma_on(dw);
return 0;
}
EXPORT_SYMBOL_GPL(dw_dma_resume);
#endif /* CONFIG_PM_SLEEP */
EXPORT_SYMBOL_GPL(dw_dma_enable);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("Synopsys DesignWare DMA Controller core driver");

10
drivers/dma/dw/internal.h
View File

@ -38,14 +38,8 @@ struct dw_dma_chip {
int dw_dma_probe(struct dw_dma_chip *chip, struct dw_dma_platform_data *pdata);
int dw_dma_remove(struct dw_dma_chip *chip);
void dw_dma_shutdown(struct dw_dma_chip *chip);
#ifdef CONFIG_PM_SLEEP
int dw_dma_suspend(struct dw_dma_chip *chip);
int dw_dma_resume(struct dw_dma_chip *chip);
#endif /* CONFIG_PM_SLEEP */
int dw_dma_disable(struct dw_dma_chip *chip);
int dw_dma_enable(struct dw_dma_chip *chip);
extern bool dw_dma_filter(struct dma_chan *chan, void *param);

4
drivers/dma/dw/pci.c
View File

@ -82,7 +82,7 @@ static int dw_pci_suspend_late(struct device *dev)
struct pci_dev *pci = to_pci_dev(dev);
struct dw_dma_chip *chip = pci_get_drvdata(pci);
return dw_dma_suspend(chip);
return dw_dma_disable(chip);
};
static int dw_pci_resume_early(struct device *dev)
@ -90,7 +90,7 @@ static int dw_pci_resume_early(struct device *dev)
struct pci_dev *pci = to_pci_dev(dev);
struct dw_dma_chip *chip = pci_get_drvdata(pci);
return dw_dma_resume(chip);
return dw_dma_enable(chip);
};
#endif /* CONFIG_PM_SLEEP */

8
drivers/dma/dw/platform.c
View File

@ -226,7 +226,7 @@ static void dw_shutdown(struct platform_device *pdev)
{
struct dw_dma_chip *chip = platform_get_drvdata(pdev);
dw_dma_shutdown(chip);
dw_dma_disable(chip);
clk_disable_unprepare(chip->clk);
}
@ -253,7 +253,7 @@ static int dw_suspend_late(struct device *dev)
struct platform_device *pdev = to_platform_device(dev);
struct dw_dma_chip *chip = platform_get_drvdata(pdev);
dw_dma_suspend(chip);
dw_dma_disable(chip);
clk_disable_unprepare(chip->clk);
return 0;
@ -265,7 +265,7 @@ static int dw_resume_early(struct device *dev)
struct dw_dma_chip *chip = platform_get_drvdata(pdev);
clk_prepare_enable(chip->clk);
return dw_dma_resume(chip);
return dw_dma_enable(chip);
}
#endif /* CONFIG_PM_SLEEP */
@ -277,7 +277,7 @@ static const struct dev_pm_ops dw_dev_pm_ops = {
static struct platform_driver dw_driver = {
.probe = dw_probe,
.remove = dw_remove,
.shutdown = dw_shutdown,
.shutdown = dw_shutdown,
.driver = {
.name = "dw_dmac",
.pm = &dw_dev_pm_ops,