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authorCharulatha V <charu@ti.com>2011-05-05 18:45:16 +0400
committerTarun Kanti DebBarma <tarun.kanti@ti.com>2012-02-06 12:43:40 +0400
commit0cde8d03dd297fa8e7e88cedeb498d0ed5b7776d (patch)
tree542a4f06bc659180898d9e9d6bc3e540ddd088f1 /arch/arm/mach-omap2/gpio.c
parent03e128ca35e5da22e9e65ec8ab158ec0e905fdea (diff)
downloadlinux-0cde8d03dd297fa8e7e88cedeb498d0ed5b7776d.tar.xz
gpio/omap: use flag to identify wakeup domain
In omap3, save/restore context is implemented for GPIO banks 2-6 as GPIO bank1 is in wakeup domain. Instead of identifying bank's power domain by bank id, use 'loses_context' flag which is filled by pwrdm_can_ever_lose_context() during dev_init. For getting the powerdomain pointer, omap_hwmod_get_pwrdm() is used. omap_device_get_pwrdm() could not be used as the pwrdm information needs to be filled in pdata, whereas omap_device_get_pwrdm() could be used only after omap_device_build() call. Signed-off-by: Charulatha V <charu@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>
Diffstat (limited to 'arch/arm/mach-omap2/gpio.c')
-rw-r--r--arch/arm/mach-omap2/gpio.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/gpio.c b/arch/arm/mach-omap2/gpio.c
index 07ac64850746..076be342ad28 100644
--- a/arch/arm/mach-omap2/gpio.c
+++ b/arch/arm/mach-omap2/gpio.c
@@ -24,6 +24,8 @@
#include <plat/omap_hwmod.h>
#include <plat/omap_device.h>
+#include "powerdomain.h"
+
static int omap2_gpio_dev_init(struct omap_hwmod *oh, void *unused)
{
struct platform_device *pdev;
@@ -31,6 +33,7 @@ static int omap2_gpio_dev_init(struct omap_hwmod *oh, void *unused)
struct omap_gpio_dev_attr *dev_attr;
char *name = "omap_gpio";
int id;
+ struct powerdomain *pwrdm;
/*
* extract the device id from name field available in the
@@ -99,6 +102,9 @@ static int omap2_gpio_dev_init(struct omap_hwmod *oh, void *unused)
return -EINVAL;
}
+ pwrdm = omap_hwmod_get_pwrdm(oh);
+ pdata->loses_context = pwrdm_can_ever_lose_context(pwrdm);
+
pdev = omap_device_build(name, id - 1, oh, pdata,
sizeof(*pdata), NULL, 0, false);
kfree(pdata);