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authorJulien Delacou <julien.delacou@stericsson.com>2012-12-11 09:17:47 +0100
committerLinus Walleij <linus.walleij@linaro.org>2013-01-11 21:49:20 +0100
commit8d99b32d7b9fb542c5efb00a8ec3b96e77be86fd (patch)
tree22bcddd8d17595dde8cb3deb537b40648ae5ca4d /drivers/pinctrl/pinctrl-nomadik.c
parent840a47ba43a2aefbd9834924228549879ee3cb49 (diff)
pinctrl/nomadik: adopt pinctrl sleep mode management
This fix makes pinctrl-nomadik able to handle suspend/resume events and change hogged pins states accordingly. Signed-off-by: Julien Delacou <julien.delacou@stericsson.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/pinctrl-nomadik.c')
-rw-r--r--drivers/pinctrl/pinctrl-nomadik.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c
index 1bb16ffb4e4..5d8a0066ab6 100644
--- a/drivers/pinctrl/pinctrl-nomadik.c
+++ b/drivers/pinctrl/pinctrl-nomadik.c
@@ -34,6 +34,7 @@
#include <asm/mach/irq.h>
#include <mach/irqs.h>
#include "pinctrl-nomadik.h"
+#include "core.h"
/*
* The GPIO module in the Nomadik family of Systems-on-Chip is an
@@ -1852,6 +1853,28 @@ static const struct of_device_id nmk_pinctrl_match[] = {
{},
};
+static int nmk_pinctrl_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct nmk_pinctrl *npct;
+
+ npct = platform_get_drvdata(pdev);
+ if (!npct)
+ return -EINVAL;
+
+ return pinctrl_force_sleep(npct->pctl);
+}
+
+static int nmk_pinctrl_resume(struct platform_device *pdev)
+{
+ struct nmk_pinctrl *npct;
+
+ npct = platform_get_drvdata(pdev);
+ if (!npct)
+ return -EINVAL;
+
+ return pinctrl_force_default(npct->pctl);
+}
+
static int nmk_pinctrl_probe(struct platform_device *pdev)
{
const struct platform_device_id *platid = platform_get_device_id(pdev);
@@ -1963,6 +1986,10 @@ static struct platform_driver nmk_pinctrl_driver = {
},
.probe = nmk_pinctrl_probe,
.id_table = nmk_pinctrl_id,
+#ifdef CONFIG_PM
+ .suspend = nmk_pinctrl_suspend,
+ .resume = nmk_pinctrl_resume,
+#endif
};
static int __init nmk_gpio_init(void)