diff mbox series

[v3,4/4] Bluetooth: hci_qca: Disable IBS state machine and flush Tx buffer

Message ID 20181130150247.26294-5-bgodavar@codeaurora.org (mailing list archive)
State Not Applicable, archived
Headers show
Series Bug fixes for Qualcomm BT chip wcn3990 | expand

Commit Message

Balakrishna Godavarthi Nov. 30, 2018, 3:02 p.m. UTC
During hci down we observed IBS sleep commands are queued in the Tx
buffer and hci_uart_write_work is sending data to the chip which is
not required as the chip is powered off. This patch will disable IBS
and flush the Tx buffer before we turn off the chip.

Signed-off-by: Balakrishna Godavarthi <bgodavar@codeaurora.org>
---
v3: 
  * initial patch
---
 drivers/bluetooth/hci_qca.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index d595a82cb4b9..6f2a4bf7ba17 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1286,6 +1286,8 @@  static void qca_power_shutdown(struct hci_uart *hu)
 	 * still open, discard all the garbage data received on the Rx line.
 	 */
 	set_bit(STATE_DISCARD_RX, &qca->flags);
+	clear_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags);
+	qca_flush(hu);
 	host_set_baudrate(hu, 2400);
 	qca_send_power_pulse(hu, QCA_WCN3990_POWEROFF_PULSE);
 	qca_power_setup(hu, false);