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| author | David S. Miller <davem@davemloft.net> | 2014-09-07 21:41:53 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-09-07 21:41:53 -0700 |
| commit | eb84d6b60491a3ca3d90d62ee5346b007770d40d (patch) | |
| tree | 22aadf9ada15e1ae5ba4c400aafab6f2541996e6 /drivers/gpio/gpio-lynxpoint.c | |
| parent | 97a13e5289baa96eaddd06e61d277457d837af3a (diff) | |
| parent | d030671f3f261e528dc6e396a13f10859a74ae7c (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'drivers/gpio/gpio-lynxpoint.c')
| -rw-r--r-- | drivers/gpio/gpio-lynxpoint.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-lynxpoint.c b/drivers/gpio/gpio-lynxpoint.c index ff9eb911b5e..fa945ec9ccf 100644 --- a/drivers/gpio/gpio-lynxpoint.c +++ b/drivers/gpio/gpio-lynxpoint.c @@ -407,9 +407,27 @@ static int lp_gpio_runtime_resume(struct device *dev) return 0; } +static int lp_gpio_resume(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct lp_gpio *lg = platform_get_drvdata(pdev); + unsigned long reg; + int i; + + /* on some hardware suspend clears input sensing, re-enable it here */ + for (i = 0; i < lg->chip.ngpio; i++) { + if (gpiochip_is_requested(&lg->chip, i) != NULL) { + reg = lp_gpio_reg(&lg->chip, i, LP_CONFIG2); + outl(inl(reg) & ~GPINDIS_BIT, reg); + } + } + return 0; +} + static const struct dev_pm_ops lp_gpio_pm_ops = { .runtime_suspend = lp_gpio_runtime_suspend, .runtime_resume = lp_gpio_runtime_resume, + .resume = lp_gpio_resume, }; static const struct acpi_device_id lynxpoint_gpio_acpi_match[] = { |