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pinctrl: single: adopt pinctrl sleep mode management 

Make pinctrl-single able to handle suspend/resume events and change
hogged pins states accordingly.

Signed-off-by: Hebbar Gururaja <gururaja.hebbar@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Hebbar Gururaja 2013-05-31 15:43:01 +05:30 committed by Linus Walleij
parent 97e3d9e32f
commit 0f9bc4bcdf
1 changed files with 27 additions and 0 deletions
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27
drivers/pinctrl/pinctrl-single.c
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@ -1483,6 +1483,29 @@ static int pcs_add_gpio_func(struct device_node *node, struct pcs_device *pcs)
return ret;
}
static int pinctrl_single_suspend(struct platform_device *pdev,
pm_message_t state)
{
struct pcs_device *pcs;
pcs = platform_get_drvdata(pdev);
if (!pcs)
return -EINVAL;
return pinctrl_force_sleep(pcs->pctl);
}
static int pinctrl_single_resume(struct platform_device *pdev)
{
struct pcs_device *pcs;
pcs = platform_get_drvdata(pdev);
if (!pcs)
return -EINVAL;
return pinctrl_force_default(pcs->pctl);
}
static int pcs_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
@ -1631,6 +1654,10 @@ static struct platform_driver pcs_driver = {
.name = DRIVER_NAME,
.of_match_table = pcs_of_match,
},
#ifdef CONFIG_PM
.suspend = pinctrl_single_suspend,
.resume = pinctrl_single_resume,
#endif
};
module_platform_driver(pcs_driver);