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

gpio/omap: fix incorrect context restore logic in omap_gpio_runtime_* 

In omap_gpio_runtime_suspend/resume() the context save/restore should
be independent of bank->enabled_non_wakeup_gpios. This was preventing
context restore of GPIO lines which are not wakeup enabled.

Reported-by: Govindraj Raja <govindraj.raja@ti.com>
Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com>
Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
This commit is contained in:
Tarun Kanti DebBarma 2012-03-05 16:00:54 +05:30
parent 2c836f7ea5
commit 960edffe29
1 changed files with 1 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/gpio/gpio-omap.c
View File

@ -1247,9 +1247,6 @@ static int omap_gpio_runtime_suspend(struct device *dev)
* non-wakeup GPIOs. Otherwise spurious IRQs will be
* generated. See OMAP2420 Errata item 1.101.
*/
if (!(bank->enabled_non_wakeup_gpios))
goto update_gpio_context_count;
bank->saved_datain = __raw_readl(bank->base +
bank->regs->datain);
l1 = __raw_readl(bank->base + bank->regs->fallingdetect);
@ -1298,7 +1295,7 @@ static int omap_gpio_runtime_resume(struct device *dev)
__raw_writel(bank->context.risingdetect,
bank->base + bank->regs->risingdetect);
if (!bank->enabled_non_wakeup_gpios || !bank->workaround_enabled) {
if (!bank->workaround_enabled) {
spin_unlock_irqrestore(&bank->lock, flags);
return 0;
}