leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

i2c: s3c2410: resume the I2C controller earlier

Browse Source 
When the wake-up is triggered by the PMIC RTC, the RTC driver is trying
to read the PMIC interrupt status over I2C and fails because the I2C
controller is not resumed yet.
Let's resume the I2C controller earlier in the _noirq phase
(as other hardwares are doing), so we can properly get the wake-up
condition.

[tomasz: Also fixes certain issues on Exynos4-based boards.]

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Acked-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
Vincent Palatin 2014-06-24 16:56:54 -07:00 committed by Wolfram Sang
parent 0f6ba0d15f
commit b19c1959b0
1 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/i2c/busses/i2c-s3c2410.c
View File

@ -1267,7 +1267,7 @@ static int s3c24xx_i2c_suspend_noirq(struct device *dev)
return 0;
}
static int s3c24xx_i2c_resume(struct device *dev)
static int s3c24xx_i2c_resume_noirq(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct s3c24xx_i2c *i2c = platform_get_drvdata(pdev);
@ -1285,7 +1285,11 @@ static int s3c24xx_i2c_resume(struct device *dev)
static const struct dev_pm_ops s3c24xx_i2c_dev_pm_ops = {
#ifdef CONFIG_PM_SLEEP
.suspend_noirq = s3c24xx_i2c_suspend_noirq,
.resume = s3c24xx_i2c_resume,
.resume_noirq = s3c24xx_i2c_resume_noirq,
.freeze_noirq = s3c24xx_i2c_suspend_noirq,
.thaw_noirq = s3c24xx_i2c_resume_noirq,
.poweroff_noirq = s3c24xx_i2c_suspend_noirq,
.restore_noirq = s3c24xx_i2c_resume_noirq,
#endif
};