Commit 662c738d authored by Heiko Stübner's avatar Heiko Stübner Committed by Felipe Balbi

usb: otg: gpio_vbus: Add otg transceiver events and notifiers

Commit 9ad63986 (pda_power: Add support for using otg transceiver events)
converted the pda-power driver to use otg events to determine the status
of the power supply.

As gpio-vbus didn't use otg events until now, this change breaks setups
of pda-power with a gpio-vbus transceiver.

This patch adds the necessary otg events and notifiers to gpio-vbus.
Signed-off-by: default avatarHeiko Stuebner <heiko@sntech.de>
Reviewed-by: default avatarDima Zavin <dima@android.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 92b0abf8
......@@ -96,7 +96,7 @@ static void gpio_vbus_work(struct work_struct *work)
struct gpio_vbus_data *gpio_vbus =
container_of(work, struct gpio_vbus_data, work);
struct gpio_vbus_mach_info *pdata = gpio_vbus->dev->platform_data;
int gpio;
int gpio, status;
if (!gpio_vbus->phy.otg->gadget)
return;
......@@ -108,7 +108,9 @@ static void gpio_vbus_work(struct work_struct *work)
*/
gpio = pdata->gpio_pullup;
if (is_vbus_powered(pdata)) {
status = USB_EVENT_VBUS;
gpio_vbus->phy.state = OTG_STATE_B_PERIPHERAL;
gpio_vbus->phy.last_event = status;
usb_gadget_vbus_connect(gpio_vbus->phy.otg->gadget);
/* drawing a "unit load" is *always* OK, except for OTG */
......@@ -117,6 +119,9 @@ static void gpio_vbus_work(struct work_struct *work)
/* optionally enable D+ pullup */
if (gpio_is_valid(gpio))
gpio_set_value(gpio, !pdata->gpio_pullup_inverted);
atomic_notifier_call_chain(&gpio_vbus->phy.notifier,
status, gpio_vbus->phy.otg->gadget);
} else {
/* optionally disable D+ pullup */
if (gpio_is_valid(gpio))
......@@ -125,7 +130,12 @@ static void gpio_vbus_work(struct work_struct *work)
set_vbus_draw(gpio_vbus, 0);
usb_gadget_vbus_disconnect(gpio_vbus->phy.otg->gadget);
status = USB_EVENT_NONE;
gpio_vbus->phy.state = OTG_STATE_B_IDLE;
gpio_vbus->phy.last_event = status;
atomic_notifier_call_chain(&gpio_vbus->phy.notifier,
status, gpio_vbus->phy.otg->gadget);
}
}
......@@ -287,6 +297,9 @@ static int __init gpio_vbus_probe(struct platform_device *pdev)
irq, err);
goto err_irq;
}
ATOMIC_INIT_NOTIFIER_HEAD(&gpio_vbus->phy.notifier);
INIT_WORK(&gpio_vbus->work, gpio_vbus_work);
gpio_vbus->vbus_draw = regulator_get(&pdev->dev, "vbus_draw");
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment