This was intoduced in this commit:
commit 431a9e1713c512bb96d570dc84e518384d1ac62b
Author: Loic Poulain <loic.poulain@xxxxxxxxx>
Date: Wed Jul 1 12:20:26 2015 +0200
Bluetooth: hci_uart: Add basic support for Intel Lightning Peak devices
Signed-off-by: Hauke Mehrtens <hauke@xxxxxxxxxx>
---
.../hci_intel.patch | 88 ++++++++++++++++++++++
1 file changed, 88 insertions(+)
create mode 100644 patches/collateral-evolutions/network/0053-remove_wait_on_bit_timeout/hci_intel.patch
diff --git a/patches/collateral-evolutions/network/0053-remove_wait_on_bit_timeout/hci_intel.patch b/patches/collateral-evolutions/network/0053-remove_wait_on_bit_timeout/hci_intel.patch
new file mode 100644
index 0000000..b8d1e7e
--- /dev/null
+++ b/patches/collateral-evolutions/network/0053-remove_wait_on_bit_timeout/hci_intel.patch
@@ -0,0 +1,88 @@
+diff --git a/drivers/bluetooth/hci_intel.c b/drivers/bluetooth/hci_intel.c
+index 21dfa89..f246352 100644
+--- a/drivers/bluetooth/hci_intel.c
++++ b/drivers/bluetooth/hci_intel.c
+@@ -383,6 +383,7 @@ static int intel_setup(struct hci_uart *
+ * and thus just timeout if that happens and fail the setup
+ * of this device.
+ */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,17,0)
+ err = wait_on_bit_timeout(&intel->flags, STATE_DOWNLOADING,
+ TASK_INTERRUPTIBLE,
+ msecs_to_jiffies(5000));
+@@ -403,6 +404,33 @@ static int intel_setup(struct hci_uart *
+ err = -ENOEXEC;
+ goto done;
+ }
++#else
++ if (test_bit(STATE_DOWNLOADING, &intel->flags)) {
++ DECLARE_WAITQUEUE(wait, current);
++ signed long timeout;
++
++ add_wait_queue(&hdev->req_wait_q, &wait);
++ set_current_state(TASK_INTERRUPTIBLE);
++
++ /* Booting into operational firmware should not take
++ * longer than 1 second. However if that happens, then
++ * just fail the setup since something went wrong.
++ */
++ timeout = schedule_timeout(msecs_to_jiffies(5000));
++
++ remove_wait_queue(&hdev->req_wait_q, &wait);
++
++ if (signal_pending(current)) {
++ BT_ERR("%s: Firmware loading interrupted", hdev->name);
++ return -EINTR;
++ }
++
++ if (!timeout) {
++ BT_ERR("%s: Firmware loading timeout", hdev->name);
++ return -ETIMEDOUT;
++ }
++ }
++#endif
+
+ rettime = ktime_get();
+ delta = ktime_sub(rettime, calltime);
+@@ -436,6 +464,7 @@ done:
+ */
+ BT_INFO("%s: Waiting for device to boot", hdev->name);
+
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,17,0)
+ err = wait_on_bit_timeout(&intel->flags, STATE_BOOTING,
+ TASK_INTERRUPTIBLE,
+ msecs_to_jiffies(1000));
+@@ -449,6 +478,33 @@ done:
+ BT_ERR("%s: Device boot timeout", hdev->name);
+ return -ETIMEDOUT;
+ }
++#else
++ if (test_bit(STATE_BOOTING, &intel->flags)) {
++ DECLARE_WAITQUEUE(wait, current);
++ signed long timeout;
++
++ add_wait_queue(&hdev->req_wait_q, &wait);
++ set_current_state(TASK_INTERRUPTIBLE);
++
++ /* Booting into operational firmware should not take
++ * longer than 1 second. However if that happens, then
++ * just fail the setup since something went wrong.
++ */
++ timeout = schedule_timeout(msecs_to_jiffies(1000));
++
++ remove_wait_queue(&hdev->req_wait_q, &wait);
++
++ if (signal_pending(current)) {
++ BT_ERR("%s: Device boot interrupted", hdev->name);
++ return -EINTR;
++ }
++
++ if (!timeout) {
++ BT_ERR("%s: Device boot timeout", hdev->name);
++ return -ETIMEDOUT;
++ }
++ }
++#endif
+
+ rettime = ktime_get();
+ delta = ktime_sub(rettime, calltime);
--
2.1.4
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