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at_hdmac: Rework suspend_late()/resume_early()

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This patch reworks platform driver power management code
for at_hdmac from legacy late/early callbacks to dev_pm_ops.

The callbacks are converted for CONFIG_SUSPEND like this:
  suspend_late() -> suspend_noirq()
  resume_early() -> resume_noirq()

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
This commit is contained in:
Dan Williams 2009-09-10 00:06:44 +02:00 committed by Rafael J. Wysocki
parent 3eb132c986
commit 33f82d141c
1 changed files with 12 additions and 7 deletions
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19
drivers/dma/at_hdmac.c
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@ -1166,32 +1166,37 @@ static void at_dma_shutdown(struct platform_device *pdev)
clk_disable(atdma->clk); clk_disable(atdma->clk);
} }
static int at_dma_suspend_late(struct platform_device *pdev, pm_message_t mesg) static int at_dma_suspend_noirq(struct device *dev)
{ {
struct at_dma *atdma = platform_get_drvdata(pdev); struct platform_device *pdev = to_platform_device(dev);
struct at_dma *atdma = platform_get_drvdata(pdev);
at_dma_off(platform_get_drvdata(pdev)); at_dma_off(platform_get_drvdata(pdev));
clk_disable(atdma->clk); clk_disable(atdma->clk);
return 0; return 0;
} }
static int at_dma_resume_early(struct platform_device *pdev) static int at_dma_resume_noirq(struct device *dev)
{ {
struct at_dma *atdma = platform_get_drvdata(pdev); struct platform_device *pdev = to_platform_device(dev);
struct at_dma *atdma = platform_get_drvdata(pdev);
clk_enable(atdma->clk); clk_enable(atdma->clk);
dma_writel(atdma, EN, AT_DMA_ENABLE); dma_writel(atdma, EN, AT_DMA_ENABLE);
return 0; return 0;
} }
static struct dev_pm_ops at_dma_dev_pm_ops = {
.suspend_noirq = at_dma_suspend_noirq,
.resume_noirq = at_dma_resume_noirq,
};
static struct platform_driver at_dma_driver = { static struct platform_driver at_dma_driver = {
.remove = __exit_p(at_dma_remove), .remove = __exit_p(at_dma_remove),
.shutdown = at_dma_shutdown, .shutdown = at_dma_shutdown,
.suspend_late = at_dma_suspend_late,
.resume_early = at_dma_resume_early,
.driver = { .driver = {
.name = "at_hdmac", .name = "at_hdmac",
.pm = &at_dma_dev_pm_ops,
}, },
}; };