Hi,
I am using btbcm on an embedded device which has a broadcom bt module.
I understand that the below code suspends the bt device. Can anyone show
me where i need to specify wakeup irq and device_wakeup gpios?
I cant find examples of boards which do these? I understand that device_wakeup
is required for suspending the device.
Below is the code segment for suspend-resume which i suppose will be
called to suspend the device.
+static int bcm_suspend(struct device *pdev)
+{
+ struct bcm_device *dev = platform_get_drvdata(to_platform_device(pdev));
+
+ BT_DBG("suspend (%p): is_suspended %d", dev, dev->is_suspended);
+
+ if (!dev->is_suspended) {
+ hci_uart_set_flow_control(dev->hu, true);
+
+ /* Once this callback returns, driver suspends BT via GPIO */
+ dev->is_suspended = true;
+ }
+
+ /* Suspend the device */
+ if (dev->device_wakeup) {
+ gpiod_set_value(dev->device_wakeup, false);
+ BT_DBG("suspend, delaying 15 ms");
+ mdelay(15);
+ }
+
+ return 0;
+}
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