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spi: omap2-mcspi: Add calls for pinctrl state select

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This adds calls to pinctrl subsystem in order to switch pin states
on suspend/resume if you provide a "sleep" state in DT.

If no "sleep" state is provided in DT, these calls turn
to NOPs.

Signed-off-by: Pascal Huerst <pascal.huerst@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Pascal Huerst 2015-11-19 16:18:28 +01:00 committed by Mark Brown
parent 8005c49d9a
commit beca365565
1 changed files with 11 additions and 1 deletions
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12
drivers/spi/spi-omap2-mcspi.c
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@ -24,6 +24,7 @@
#include <linux/dma-mapping.h> #include <linux/dma-mapping.h>
#include <linux/dmaengine.h> #include <linux/dmaengine.h>
#include <linux/omap-dma.h> #include <linux/omap-dma.h>
#include <linux/pinctrl/consumer.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>
#include <linux/err.h> #include <linux/err.h>
#include <linux/clk.h> #include <linux/clk.h>
@ -1536,14 +1537,23 @@ static int omap2_mcspi_resume(struct device *dev)
} }
pm_runtime_mark_last_busy(mcspi->dev); pm_runtime_mark_last_busy(mcspi->dev);
pm_runtime_put_autosuspend(mcspi->dev); pm_runtime_put_autosuspend(mcspi->dev);
return 0;
return pinctrl_pm_select_default_state(dev);
} }
static int omap2_mcspi_suspend(struct device *dev)
{
return pinctrl_pm_select_sleep_state(dev);
}
#else #else
#define omap2_mcspi_suspend NULL
#define omap2_mcspi_resume NULL #define omap2_mcspi_resume NULL
#endif #endif
static const struct dev_pm_ops omap2_mcspi_pm_ops = { static const struct dev_pm_ops omap2_mcspi_pm_ops = {
.resume = omap2_mcspi_resume, .resume = omap2_mcspi_resume,
.suspend = omap2_mcspi_suspend,
.runtime_resume = omap_mcspi_runtime_resume, .runtime_resume = omap_mcspi_runtime_resume,
}; };