Add suspend/resume callbacks and support for wakeup from
suspend on USB HOST or USB Device cable insertion or removal.
Signed-off-by: Laxman Dewangan <ldewangan@xxxxxxxxxx>
---
drivers/extcon/extcon-palmas.c | 38 +++++++++++++++++++++++++++++++++++---
1 files changed, 35 insertions(+), 3 deletions(-)
diff --git a/drivers/extcon/extcon-palmas.c b/drivers/extcon/extcon-palmas.c
index 587034b..b2d64d4 100644
--- a/drivers/extcon/extcon-palmas.c
+++ b/drivers/extcon/extcon-palmas.c
@@ -182,7 +182,8 @@ static int palmas_usb_probe(struct platform_device *pdev)
status = devm_request_threaded_irq(palmas_usb->dev, palmas_usb->id_irq,
NULL, palmas_id_irq_handler,
- IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
+ IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING |
+ IRQF_ONESHOT | IRQF_EARLY_RESUME,
"palmas_usb_id", palmas_usb);
if (status < 0) {
dev_err(&pdev->dev, "can't get IRQ %d, err %d\n",
@@ -192,7 +193,8 @@ static int palmas_usb_probe(struct platform_device *pdev)
status = devm_request_threaded_irq(palmas_usb->dev,
palmas_usb->vbus_irq, NULL, palmas_vbus_irq_handler,
- IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
+ IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING |
+ IRQF_ONESHOT | IRQF_EARLY_RESUME,
"palmas_usb_vbus", palmas_usb);
if (status < 0) {
dev_err(&pdev->dev, "can't get IRQ %d, err %d\n",
@@ -201,7 +203,7 @@ static int palmas_usb_probe(struct platform_device *pdev)
}
palmas_enable_irq(palmas_usb);
-
+ device_set_wakeup_capable(&pdev->dev, true);
return 0;
fail_extcon:
@@ -219,6 +221,35 @@ static int palmas_usb_remove(struct platform_device *pdev)
return 0;
}
+#ifdef CONFIG_PM_SLEEP
+static int palmas_usb_suspend(struct device *dev)
+{
+ struct palmas_usb *palmas_usb = dev_get_drvdata(dev);
+
+ if (device_may_wakeup(dev)) {
+ enable_irq_wake(palmas_usb->vbus_irq);
+ enable_irq_wake(palmas_usb->id_irq);
+ }
+ return 0;
+}
+
+static int palmas_usb_resume(struct device *dev)
+{
+ struct palmas_usb *palmas_usb = dev_get_drvdata(dev);
+
+ if (device_may_wakeup(dev)) {
+ disable_irq_wake(palmas_usb->vbus_irq);
+ disable_irq_wake(palmas_usb->id_irq);
+ }
+ return 0;
+};
+#endif
+
+static const struct dev_pm_ops palmas_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(palmas_usb_suspend,
+ palmas_usb_resume)
+};
+
static struct of_device_id of_palmas_match_tbl[] = {
{ .compatible = "ti,palmas-usb", },
{ .compatible = "ti,twl6035-usb", },
@@ -232,6 +263,7 @@ static struct platform_driver palmas_usb_driver = {
.name = "palmas-usb",
.of_match_table = of_palmas_match_tbl,
.owner = THIS_MODULE,
+ .pm = &palmas_pm_ops,
},
};
--
1.7.1.1
--
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