openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

i2c-at91: Use struct dev_pm_ops for power management 

Make the AT91 Two-Wire Interface driver define its PM callbacks
through a struct dev_pm_ops object rather than by using legacy PM
hooks in struct platform_driver.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
This commit is contained in:
Rafael J. Wysocki 2012-07-11 21:22:47 +02:00 committed by Wolfram Sang
parent 02d8bf8dc6
commit f277d27cc4
1 changed files with 7 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/i2c/busses/i2c-at91.c
View File

@ -279,30 +279,31 @@ static int __devexit at91_i2c_remove(struct platform_device *pdev)
/* NOTE: could save a few mA by keeping clock off outside of at91_xfer... */
static int at91_i2c_suspend(struct platform_device *pdev, pm_message_t mesg)
static int at91_i2c_suspend(struct device *dev)
{
clk_disable(twi_clk);
return 0;
}
static int at91_i2c_resume(struct platform_device *pdev)
static int at91_i2c_resume(struct device *dev)
{
return clk_enable(twi_clk);
}
static SIMPLE_DEV_PM_OPS(at91_i2c_pm, at91_i2c_suspend, at91_i2c_resume);
#define AT91_I2C_PM (&at91_i2c_pm)
#else
#define at91_i2c_suspend NULL
#define at91_i2c_resume NULL
#define AT91_I2C_PM NULL
#endif
static struct platform_driver at91_i2c_driver = {
.probe = at91_i2c_probe,
.remove = __devexit_p(at91_i2c_remove),
.suspend = at91_i2c_suspend,
.resume = at91_i2c_resume,
.driver = {
.name = "at91_i2c",
.owner = THIS_MODULE,
.pm = AT91_I2C_PM,
},
};