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Commit 5fd72dd9 authored by Abinaya P's avatar Abinaya P Committed by Gerrit - the friendly Code Review server
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drivers: net: can: Add suspend/resume routine for CAN driver 



Make the CAN interrupt as a wakeup capable interrupt and also add
suspend/resume routine to handle the suspend/resume states of
the device

Change-Id: I0e972f3c4b005b52fb8d2e03f83995ecd3c47538
Signed-off-by: default avatarAbinaya P <abinayap@codeaurora.org>
parent 6f6c6e07

drivers/net/can/spi/k61.c

+29 −0
Original line number Diff line number Diff line
@@ -23,6 +23,7 @@ 
#include <linux/of_device.h>

#include <linux/of_gpio.h>

#include <linux/uaccess.h>

#include <linux/pm.h>



#define DEBUG_K61	0

#if DEBUG_K61 == 1
@@ -920,11 +921,39 @@ static const struct of_device_id k61_match_table[] = { 
	{ }

};



#ifdef CONFIG_PM

static int k61_suspend(struct device *dev)

{

	struct spi_device *spi = to_spi_device(dev);



	enable_irq_wake(spi->irq);

	return 0;

}



static int k61_resume(struct device *dev)

{

	struct spi_device *spi = to_spi_device(dev);

	struct k61_can *priv_data = spi_get_drvdata(spi);



	disable_irq_wake(spi->irq);

	k61_rx_message(priv_data);

	return 0;

}



static const struct dev_pm_ops k61_dev_pm_ops = {

	.suspend	= k61_suspend,

	.resume		= k61_resume,

};

#endif



static struct spi_driver k61_driver = {

	.driver = {

		.name = "k61",

		.of_match_table = k61_match_table,

		.owner = THIS_MODULE,

#ifdef CONFIG_PM

		.pm = &k61_dev_pm_ops,

#endif

	},

	.probe = k61_probe,

	.remove = k61_remove,