diff options
| author | Jonas Aaberg <jonas.aberg@stericsson.com> | 2012-11-24 12:10:29 +0400 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-11-28 10:40:07 +0400 |
| commit | dda19a92f033399641e47db0b75beb01d001146b (patch) | |
| tree | c2608f4ddc81920f8ba24a6fda12790b63796f9c /drivers/input | |
| parent | 5b76d7b4cd965a84d922f303fe51a49cca89f9bb (diff) | |
| download | linux-dda19a92f033399641e47db0b75beb01d001146b.tar.xz | |
Input: gpio_keys - disable hardware on suspend
Disable hardware if active when suspending if the hw can not
wake the system from suspend.
[Dmitry Torokhov: use input_dev->users instead of a separate flag]
Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Signed-off-by: Philippe Langlais <philippe.langlais@linaro.org>
Reviewed-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/keyboard/gpio_keys.c | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c index c7764ca17b88..79435de0caa8 100644 --- a/drivers/input/keyboard/gpio_keys.c +++ b/drivers/input/keyboard/gpio_keys.c @@ -803,6 +803,7 @@ static int gpio_keys_remove(struct platform_device *pdev) static int gpio_keys_suspend(struct device *dev) { struct gpio_keys_drvdata *ddata = dev_get_drvdata(dev); + struct input_dev *input = ddata->input; int i; if (device_may_wakeup(dev)) { @@ -811,6 +812,11 @@ static int gpio_keys_suspend(struct device *dev) if (bdata->button->wakeup) enable_irq_wake(bdata->irq); } + } else { + mutex_lock(&input->mutex); + if (input->users) + gpio_keys_close(input); + mutex_unlock(&input->mutex); } return 0; @@ -819,16 +825,27 @@ static int gpio_keys_suspend(struct device *dev) static int gpio_keys_resume(struct device *dev) { struct gpio_keys_drvdata *ddata = dev_get_drvdata(dev); + struct input_dev *input = ddata->input; + int error = 0; int i; - for (i = 0; i < ddata->pdata->nbuttons; i++) { - struct gpio_button_data *bdata = &ddata->data[i]; - if (bdata->button->wakeup && device_may_wakeup(dev)) - disable_irq_wake(bdata->irq); + if (device_may_wakeup(dev)) { + for (i = 0; i < ddata->pdata->nbuttons; i++) { + struct gpio_button_data *bdata = &ddata->data[i]; + if (bdata->button->wakeup) + disable_irq_wake(bdata->irq); + } + } else { + mutex_lock(&input->mutex); + if (input->users) + error = gpio_keys_open(input); + mutex_unlock(&input->mutex); } - gpio_keys_report_state(ddata); + if (error) + return error; + gpio_keys_report_state(ddata); return 0; } #endif |