Re: [PATCH RESEND] Bluetooth: btbcm: Add entry for BCM4356A3 UART bluetooth
From: Luiz Augusto von Dentz
Date: Thu Sep 17 2026 - 14:06:58 EST
Hi Aaron,
On Mon, Sep 14, 2026 at 12:41 PM Aaron Kling <webgeek1234@xxxxxxxxx> wrote:
>
> On Mon, Sep 14, 2026 at 9:13 AM Luiz Augusto von Dentz
> <luiz.dentz@xxxxxxxxx> wrote:
> >
> > Hi,
> >
> > On Mon, Sep 14, 2026 at 5:38 AM Aaron Kling via B4 Relay
> > <devnull+webgeek1234.gmail.com@xxxxxxxxxx> wrote:
> > >
> > > From: Aaron Kling <webgeek1234@xxxxxxxxx>
> > >
> > > This patch adds the device ID for the bluetooth chip used in the
> > > Nvidia specific Broadcom BCM4356 PCI-E WiFi / UART BT chip.
> > >
> > > Signed-off-by: Aaron Kling <webgeek1234@xxxxxxxxx>
> > > ---
> > > drivers/bluetooth/btbcm.c | 1 +
> > > 1 file changed, 1 insertion(+)
> > >
> > > diff --git a/drivers/bluetooth/btbcm.c b/drivers/bluetooth/btbcm.c
> > > index 463d59890befe..14acea7325478 100644
> > > --- a/drivers/bluetooth/btbcm.c
> > > +++ b/drivers/bluetooth/btbcm.c
> > > @@ -506,6 +506,7 @@ static const struct bcm_subver_table bcm_uart_subver_table[] = {
> > > { 0x6606, "BCM4345C5" }, /* 003.006.006 */
> > > { 0x230f, "BCM4356A2" }, /* 001.003.015 */
> > > { 0x2310, "BCM4343A2" }, /* 001.003.016 */
> > > + { 0x2409, "BCM4356A3" }, /* 001.004.009 */
> > > { 0x220e, "BCM20702A1" }, /* 001.002.014 */
> > > { 0x420d, "BCM4349B1" }, /* 002.002.013 */
> > > { 0x420e, "BCM4349B1" }, /* 002.002.014 */
> > >
> > > ---
> > > base-commit: 49362394dad7df66c274c867a271394c10ca2bb8
> > > change-id: 20260717-bcm4356a3-bt-cd78cc0f42e8
> >
> > We need some more information, such as:
> >
> > Test log:
> >
> > Bluetooth: hci0: BCM: chip id 206
> > Bluetooth: hci0: BCM: features 0x0f
> > Bluetooth: hci0: BCM4384B0
> > Bluetooth: hci0: BCM4384B0 (002.001.025) build 0000
> > Bluetooth: hci0: BCM4384B0 'brcm/BCM4384B0.hcd' Patch
> > Bluetooth: hci0: BCM: features 0x0f
> > Bluetooth: hci0: BCM4384B0 AP6684P CN iPA [Version: 1030.1021]
> > Bluetooth: hci0: BCM4384B0 (002.001.025) build 1021
> > Bluetooth: hci0: BCM: Using default device address (43:84:b0:00:76:93)
>
> Sure. This is from a Nvidia SHIELD TV 2019 Pro:
>
> [ 9.802656] Bluetooth: hci0: BCM: chip id 122
> [ 9.808481] Bluetooth: hci0: BCM: features 0x0f
> [ 9.835172] Bluetooth: hci0: BCM4356A3
> [ 9.837341] Bluetooth: hci0: BCM4356A3 (001.004.009) build 0000
> [ 9.844428] Bluetooth: hci0: BCM4356A3
> 'brcm/BCM4356A3.nvidia,p2894-2551-b00.hcd' Patch
> [ 12.171393] Bluetooth: hci0: BCM: features 0x0f
> [ 12.198153] Bluetooth: hci0: BCM4356A3 37.4MHz Class 1.5 Nvidia mDarcy-0108
> [ 12.203520] Bluetooth: hci0: BCM4356A3 (001.004.009) build 0109
Please respin including this information.
--
Luiz Augusto von Dentz