> From: Janaki Ramaiah Thota (Temp) (QUIC) <[email protected]>
> Sent: Monday, June 3, 2024 6:24 PM
> To: Marcel Holtmann <[email protected]>; Luiz Augusto von Dentz <[email protected]>
> Cc: Mohammed Sameer Mulla (QUIC) <[email protected]>; Harish Bandi (QUIC) <[email protected]>; [email protected]; [email protected]
> Subject: [PATCH] PENDING: Bluetooth: Increase settling time for baudrate change VSC
>
> From: Harish Bandi <[email protected]>
>
> This change is done to align the settling time and synchronization for baudrate VSC for WCN6750.
>
> In logging disabled builds and few devices baudrate change and flow control is taking time so increasing the wait time to controller and uart to handle baudrate change request properly.
>
> Change-Id: If0631cb886e53817f963f075e626c89a791b7be4
> Signed-off-by: Harish Bandi <[email protected]>
> ---
>
> diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c index eba9165..a59b35e 100644
> --- a/drivers/bluetooth/btqca.c
> +++ b/drivers/bluetooth/btqca.c
> @@ -600,7 +600,6 @@
> rom_ver = ((soc_ver & 0x00000f00) >> 0x04) | (soc_ver & 0x0000000f);
>
> if (soc_type == QCA_WCN6750) {
> - msleep(100);
> qca_send_patch_config_cmd(hdev);
> }
>
> diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index d8abd27..0b41214 100644
> --- a/drivers/bluetooth/hci_qca.c
> +++ b/drivers/bluetooth/hci_qca.c
> @@ -1356,11 +1356,13 @@
> case QCA_WCN3990:
> case QCA_WCN3991:
> case QCA_WCN3998:
> - case QCA_WCN6750:
> case QCA_WCN6855:
> case QCA_WCN7850:
> usleep_range(1000, 10000);
> break;
> + case QCA_WCN6750:
> + msleep(30);
> + break;
>
> default:
> msleep(300);
> @@ -1904,7 +1906,6 @@
> qca_set_speed(hu, QCA_INIT_SPEED);
> }
>
> - usleep_range(1000, 20000);
> /* Setup user speed if needed */
> speed = qca_get_speed(hu, QCA_OPER_SPEED);
> if (speed) {
Please ignore the above patch.
-Janaki Ram