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pinctrl/nomadik: adopt pinctrl sleep mode management

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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>
This commit is contained in:
Julien Delacou 2012-12-11 09:17:47 +01:00 • committed by Linus Walleij
parent 840a47ba43
commit 8d99b32d7b
1 changed files with 27 additions and 0 deletions
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27
drivers/pinctrl/pinctrl-nomadik.c
View file

@ -34,6 +34,7 @@
#include <asm/mach/irq.h> #include <asm/mach/irq.h>
#include <mach/irqs.h> #include <mach/irqs.h>
#include "pinctrl-nomadik.h" #include "pinctrl-nomadik.h"
#include "core.h"
/* /*
* The GPIO module in the Nomadik family of Systems-on-Chip is an * 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) static int nmk_pinctrl_probe(struct platform_device *pdev)
{ {
const struct platform_device_id *platid = platform_get_device_id(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, .probe = nmk_pinctrl_probe,
.id_table = nmk_pinctrl_id, .id_table = nmk_pinctrl_id,
#ifdef CONFIG_PM
.suspend = nmk_pinctrl_suspend,
.resume = nmk_pinctrl_resume,
#endif
}; };
static int __init nmk_gpio_init(void) static int __init nmk_gpio_init(void)