Re: [PATCH] Bluetooth: hci_qca: Enable WBS support for wcn3991

From: Matthias Kaehlcke
Date: Thu May 14 2020 - 12:30:53 EST


Hi Abhishek,

On Wed, May 13, 2020 at 08:41:25PM -0700, Abhishek Pandit-Subedi wrote:
> WCN3991 supports transparent WBS (host encoded mSBC). Add a flag to the
> device match data to show WBS is supported.

In general this looks good to me, a few nits inside.

> This requires the matching firmware for WCN3991 in linux-firmware:
> 1a8b0dc00f77 (qca: Enable transparent WBS for WCN3991)
>
> Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@xxxxxxxxxxxx>
> ---
>
> drivers/bluetooth/hci_qca.c | 23 +++++++++++++++++------
> 1 file changed, 17 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
> index b3fd07a6f8127..305976c4dcf42 100644
> --- a/drivers/bluetooth/hci_qca.c
> +++ b/drivers/bluetooth/hci_qca.c
> @@ -75,6 +75,9 @@ enum qca_flags {
> QCA_HW_ERROR_EVENT
> };
>
> +enum qca_driver_flags {
> + QCA_DRV_WIDEBAND_SPEECH_SUPPORTED = 0x1,

s/0x1/BIT(0)/

> +};

The 'driver'/'DRV' midfix is a bit misleading. WBS support is a device
capability, it's not something the driver supports or doesn't. Maybe
name it 'qca_capabilities' or similar.

> /* HCI_IBS transmit side sleep protocol states */
> enum tx_ibs_states {
> @@ -187,10 +190,11 @@ struct qca_vreg {
> unsigned int load_uA;
> };
>
> -struct qca_vreg_data {
> +struct qca_device_data {
> enum qca_btsoc_type soc_type;
> struct qca_vreg *vregs;
> size_t num_vregs;
> + uint32_t flags;

capabilities?