Patch "Bluetooth: hci_qca: Avoid setup failure on missing rampatch" has been added to the 4.9-stable tree

This is a note to let you know that I've just added the patch titled

Bluetooth: hci_qca: Avoid setup failure on missing rampatch

to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
bluetooth-hci_qca-avoid-setup-failure-on-missing-rampatch.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Loic Poulain <[email protected]>
Date: Mon, 6 Nov 2017 12:16:56 +0100
Subject: Bluetooth: hci_qca: Avoid setup failure on missing rampatch

From: Loic Poulain <[email protected]>

[ Upstream commit ba8f3597900291a93604643017fff66a14546015 ]

Assuming that the original code idea was to enable in-band sleeping only if the setup_rome method returns succes and run in 'standard' mode otherwise, we should not return setup_rome return value which makes qca_setup fail if no rampatch/nvm file found.

This fixes BT issue on the dragonboard-820C p4 which includes the following QCA controller:
hci0: Product:0x00000008
hci0: Patch :0x00000111
hci0: ROM :0x00000302
hci0: SOC :0x00000044

Since there is no rampatch for this controller revision, just make it work as is.

---
 drivers/bluetooth/hci_qca.c |    3 +++
 1 file changed, 3 insertions(+)

@@ -936,6 +936,9 @@ static int qca_setup(struct hci_uart *hu
 	if (!ret) {
 		set_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags);
 		qca_debugfs_init(hdev);
+	} else if (ret == -ENOENT) {
+		/* No patch/nvm-config found, run with original fw/config */
+		ret = 0;
 	}
 
 	/* Setup bdaddr */

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/bluetooth-btqcomsmd-fix-skb-double-free-corruption.patch queue-4.9/bluetooth-hci_qca-avoid-setup-failure-on-missing-rampatch.patch