On Thu, Aug 14, 2025 at 08:47:02PM +0800, Shuai Zhang wrote:
> After SSR, host will not download the firmware, causing
> controller to remain in the IBS_WAKE state. Host needs
> to synchronize with the controller to maintain proper operation.
It totally feels like all these patches fix the same issue and should be
squashed together. Please also add a sensible Fixes: tag. Possibly
add cc:stable too.
>
> Signed-off-by: Shuai Zhang <quic_shuaz@xxxxxxxxxxx>
> ---
> drivers/bluetooth/hci_qca.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
> index 91009c6a7..d37cd2368 100644
> --- a/drivers/bluetooth/hci_qca.c
> +++ b/drivers/bluetooth/hci_qca.c
> @@ -1660,10 +1660,14 @@ static void qca_hw_error(struct hci_dev *hdev, u8 code)
> * QCA_IBS_DISABLED flags cannot be cleared, which leads to a reset
> * command timeout.
> * Add an msleep delay to ensure controller completes the SSR process.
> + *
> + * Host will not download the firmware after SSR, controller to remain
> + * in the IBS_WAKE state, and the host needs to synchronize with it
> */
> if (!test_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks)) {
> clear_bit(QCA_SSR_TRIGGERED, &qca->flags);
> clear_bit(QCA_IBS_DISABLED, &qca->flags);
> + qca->tx_ibs_state = HCI_IBS_TX_AWAKE;
> msleep(50);
> }
>
> --
> 2.34.1
>
--
With best wishes
Dmitry
