From: Rob Herring <robh@kernel.org>
To: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
Sven Peter <sven@svenpeter.dev>
Cc: Marcel Holtmann <marcel@holtmann.org>,
Johan Hedberg <johan.hedberg@gmail.com>,
Luiz Augusto von Dentz <luiz.dentz@gmail.com>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Hector Martin <marcan@marcan.st>,
Alyssa Rosenzweig <alyssa@rosenzweig.io>,
asahi@lists.linux.dev, netdev@vger.kernel.org,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 2/5] dt-bindings: net: Add Broadcom BCM4377 family PCIe Bluetooth
Date: Mon, 12 Sep 2022 16:12:26 -0500 [thread overview]
Message-ID: <20220912211226.GA1847448-robh@kernel.org> (raw)
In-Reply-To: <bcb799ea-d58e-70dc-c5c2-daaff1b19bf5@linaro.org>
On Thu, Sep 08, 2022 at 01:19:17PM +0200, Krzysztof Kozlowski wrote:
> On 07/09/2022 19:09, Sven Peter wrote:
> > These chips are combined Wi-Fi/Bluetooth radios which expose a
> > PCI subfunction for the Bluetooth part.
> > They are found in Apple machines such as the x86 models with the T2
> > chip or the arm64 models with the M1 or M2 chips.
> >
> > Signed-off-by: Sven Peter <sven@svenpeter.dev>
> > ---
> > changes from v1:
> > - added apple,* pattern to brcm,board-type
> > - s/PCI/PCIe/
> > - fixed 1st reg cell inside the example to not contain the bus number
> >
> > .../bindings/net/brcm,bcm4377-bluetooth.yaml | 78 +++++++++++++++++++
> > MAINTAINERS | 1 +
> > 2 files changed, 79 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/net/brcm,bcm4377-bluetooth.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/net/brcm,bcm4377-bluetooth.yaml b/Documentation/devicetree/bindings/net/brcm,bcm4377-bluetooth.yaml
> > new file mode 100644
> > index 000000000000..fb851f8e6bcb
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/net/brcm,bcm4377-bluetooth.yaml
> > @@ -0,0 +1,78 @@
> > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/net/brcm,bcm4377-bluetooth.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Broadcom BCM4377 family PCIe Bluetooth Chips
> > +
> > +allOf:
> > + - $ref: bluetooth-controller.yaml#
>
> Put it before properties (so after description).
>
> > +
> > +maintainers:
> > + - Sven Peter <sven@svenpeter.dev>
> > +
> > +description:
> > + This binding describes Broadcom BCM4377 family PCIe-attached bluetooth chips
> > + usually found in Apple machines. The Wi-Fi part of the chip is described in
> > + bindings/net/wireless/brcm,bcm4329-fmac.yaml.
> > +
> > +properties:
> > + compatible:
> > + enum:
> > + - pci14e4,5fa0 # BCM4377
> > + - pci14e4,5f69 # BCM4378
> > + - pci14e4,5f71 # BCM4387
> > +
> > + reg:
> > + description: PCI device identifier.
>
> maxItems: X
And drop the description.
>
> > +
> > + brcm,board-type:
> > + $ref: /schemas/types.yaml#/definitions/string
> > + description: Board type of the Bluetooth chip. This is used to decouple
> > + the overall system board from the Bluetooth module and used to construct
> > + firmware and calibration data filenames.
> > + On Apple platforms, this should be the Apple module-instance codename
> > + prefixed by "apple,", e.g. "apple,atlantisb".
> > + pattern: '^apple,.*'
> > +
> > + brcm,taurus-cal-blob:
> > + $ref: /schemas/types.yaml#/definitions/uint8-array
> > + description: A per-device calibration blob for the Bluetooth radio. This
> > + should be filled in by the bootloader from platform configuration
> > + data, if necessary, and will be uploaded to the device.
> > + This blob is used if the chip stepping of the Bluetooth module does not
> > + support beamforming.
>
> Isn't it:
> s/beamforming/beam forming/
> ?
>
> > +
> > + brcm,taurus-bf-cal-blob:
> > + $ref: /schemas/types.yaml#/definitions/uint8-array
> > + description: A per-device calibration blob for the Bluetooth radio. This
> > + should be filled in by the bootloader from platform configuration
> > + data, if necessary, and will be uploaded to the device.
> > + This blob is used if the chip stepping of the Bluetooth module supports
> > + beamforming.
>
> Same here.
>
> > +
> > + local-bd-address: true
> > +
> > +required:
> > + - compatible
> > + - reg
> > + - local-bd-address
> > + - brcm,board-type
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > + - |
> > + pcie {
> > + #address-cells = <3>;
> > + #size-cells = <2>;
> > +
> > + bluetooth@0,1 {
>
> The unit address seems to be different than reg.
Right, this says dev 0, func 1.
dtc can check this, but IIRC it would need 'device_type = "pci";'
in the parent. So please add that, and verify you get a warning.
Rob
next prev parent reply other threads:[~2022-09-12 21:12 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-07 17:09 [PATCH v2 0/5] Broadcom/Apple Bluetooth driver for Apple Silicon Sven Peter
2022-09-07 17:09 ` [PATCH v2 1/5] dt-bindings: net: Add generic Bluetooth controller Sven Peter
2022-09-08 11:16 ` Krzysztof Kozlowski
2022-09-19 15:15 ` Sven Peter
2022-09-07 17:09 ` [PATCH v2 2/5] dt-bindings: net: Add Broadcom BCM4377 family PCIe Bluetooth Sven Peter
2022-09-08 11:19 ` Krzysztof Kozlowski
2022-09-08 11:29 ` Martin Povišer
2022-09-08 11:34 ` Krzysztof Kozlowski
2022-09-08 11:30 ` Hector Martin
2022-09-12 21:12 ` Rob Herring [this message]
2022-09-15 13:09 ` Rob Herring
2022-09-19 15:15 ` Sven Peter
2022-09-07 17:09 ` [PATCH v2 3/5] Bluetooth: hci_event: Add quirk to ignore byte in LE Extended Adv Report Sven Peter
2022-09-07 18:49 ` Luiz Augusto von Dentz
2022-09-07 19:21 ` Sven Peter
2022-09-07 17:09 ` [PATCH v2 4/5] Bluetooth: Add quirk to disable extended scanning Sven Peter
2022-09-07 17:09 ` [PATCH v2 5/5] Bluetooth: hci_bcm4377: Add new driver for BCM4377 PCI boards Sven Peter
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