diff options
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/keyboard/sun4i-lradc-keys.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/drivers/input/keyboard/sun4i-lradc-keys.c b/drivers/input/keyboard/sun4i-lradc-keys.c index 4a796bed48ac..15aa81942a10 100644 --- a/drivers/input/keyboard/sun4i-lradc-keys.c +++ b/drivers/input/keyboard/sun4i-lradc-keys.c @@ -22,6 +22,8 @@ #include <linux/module.h> #include <linux/of_platform.h> #include <linux/platform_device.h> +#include <linux/pm_wakeirq.h> +#include <linux/pm_wakeup.h> #include <linux/regulator/consumer.h> #include <linux/slab.h> @@ -226,8 +228,7 @@ static int sun4i_lradc_probe(struct platform_device *pdev) { struct sun4i_lradc_data *lradc; struct device *dev = &pdev->dev; - int i; - int error; + int error, i, irq; lradc = devm_kzalloc(dev, sizeof(struct sun4i_lradc_data), GFP_KERNEL); if (!lradc) @@ -272,8 +273,11 @@ static int sun4i_lradc_probe(struct platform_device *pdev) if (IS_ERR(lradc->base)) return PTR_ERR(lradc->base); - error = devm_request_irq(dev, platform_get_irq(pdev, 0), - sun4i_lradc_irq, 0, + irq = platform_get_irq(pdev, 0); + if (irq < 0) + return irq; + + error = devm_request_irq(dev, irq, sun4i_lradc_irq, 0, "sun4i-a10-lradc-keys", lradc); if (error) return error; @@ -282,6 +286,16 @@ static int sun4i_lradc_probe(struct platform_device *pdev) if (error) return error; + if (device_property_read_bool(dev, "wakeup-source")) { + error = dev_pm_set_wake_irq(dev, irq); + if (error) + dev_warn(dev, + "Failed to set IRQ %d as a wake IRQ: %d\n", + irq, error); + else + device_set_wakeup_capable(dev, true); + } + return 0; } |