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117 lines
4.1 KiB
Diff
117 lines
4.1 KiB
Diff
From 595ee6d1d91d35bd9c461f6459458a8d91d70f3e Mon Sep 17 00:00:00 2001
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From: Sven Peter <sven@svenpeter.dev>
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Date: Mon, 1 Aug 2022 12:36:30 +0200
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Subject: [PATCH 167/171] dt-bindings: net: Add Broadcom BCM4377 family PCI
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Bluetooth
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These chips are combined Wi-Fi/Bluetooth radios which expose a
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PCI subfunction for the Bluetooth part.
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They are found in Apple machines such as the x86 models with the T2
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chip or the arm64 models with the M1 or M2 chips.
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Signed-off-by: Sven Peter <sven@svenpeter.dev>
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---
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.../bindings/net/brcm,bcm4377-bluetooth.yaml | 77 +++++++++++++++++++
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MAINTAINERS | 1 +
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2 files changed, 78 insertions(+)
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create mode 100644 Documentation/devicetree/bindings/net/brcm,bcm4377-bluetooth.yaml
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diff --git a/Documentation/devicetree/bindings/net/brcm,bcm4377-bluetooth.yaml b/Documentation/devicetree/bindings/net/brcm,bcm4377-bluetooth.yaml
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new file mode 100644
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index 000000000000..afe6ecebd939
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--- /dev/null
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+++ b/Documentation/devicetree/bindings/net/brcm,bcm4377-bluetooth.yaml
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@@ -0,0 +1,77 @@
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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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+%YAML 1.2
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+---
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+$id: http://devicetree.org/schemas/net/brcm,bcm4377-bluetooth.yaml#
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+$schema: http://devicetree.org/meta-schemas/core.yaml#
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+
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+title: Broadcom BCM4377 family PCI Bluetooth Chips
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+
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+allOf:
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+ - $ref: bluetooth-controller.yaml#
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+
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+maintainers:
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+ - Sven Peter <sven@svenpeter.dev>
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+
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+description:
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+ This binding describes Broadcom BCM4377 family PCI-attached bluetooth chips
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+ usually found in Apple machines. The Wi-Fi part of the chip is described in
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+ bindings/net/wireless/brcm,bcm4329-fmac.yaml.
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+
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+properties:
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+ compatible:
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+ enum:
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+ - pci14e4,5fa0 # BCM4377
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+ - pci14e4,5f69 # BCM4378
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+ - pci14e4,5f71 # BCM4387
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+
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+ reg:
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+ description: PCI device identifier.
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+
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+ brcm,board-type:
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+ $ref: /schemas/types.yaml#/definitions/string
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+ description: Board type of the Bluetooth chip. This is used to decouple
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+ the overall system board from the Bluetooth module and used to construct
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+ firmware and calibration data filenames.
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+ On Apple platforms, this should be the Apple module-instance codename
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+ prefixed by "apple,", e.g. "apple,atlantisb".
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+
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+ brcm,taurus-cal-blob:
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+ $ref: /schemas/types.yaml#/definitions/uint8-array
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+ description: A per-device calibration blob for the Bluetooth radio. This
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+ should be filled in by the bootloader from platform configuration
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+ data, if necessary, and will be uploaded to the device.
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+ This blob is used if the chip stepping of the Bluetooth module does not
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+ support beamforming.
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+
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+ brcm,taurus-bf-cal-blob:
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+ $ref: /schemas/types.yaml#/definitions/uint8-array
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+ description: A per-device calibration blob for the Bluetooth radio. This
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+ should be filled in by the bootloader from platform configuration
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+ data, if necessary, and will be uploaded to the device.
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+ This blob is used if the chip stepping of the Bluetooth module supports
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+ beamforming.
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+
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+ local-bd-address: true
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+
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+required:
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+ - compatible
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+ - reg
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+ - local-bd-address
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+ - brcm,board-type
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+
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+additionalProperties: false
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+
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+examples:
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+ - |
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+ pci0 {
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+ #address-cells = <3>;
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+ #size-cells = <2>;
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+
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+ bluetooth@0,1 {
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+ compatible = "pci14e4,5f69";
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+ reg = <0x10100 0x0 0x0 0x0 0x0>;
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+ brcm,board-type = "apple,honshu";
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+ /* To be filled by the bootloader */
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+ local-bd-address = [00 00 00 00 00 00];
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+ };
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+ };
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diff --git a/MAINTAINERS b/MAINTAINERS
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index 64379c699903..d7b1496dd880 100644
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--- a/MAINTAINERS
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+++ b/MAINTAINERS
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@@ -1838,6 +1838,7 @@ F: Documentation/devicetree/bindings/interrupt-controller/apple,*
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F: Documentation/devicetree/bindings/iommu/apple,dart.yaml
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F: Documentation/devicetree/bindings/iommu/apple,sart.yaml
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F: Documentation/devicetree/bindings/mailbox/apple,mailbox.yaml
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+F: Documentation/devicetree/bindings/net/brcm,bcm4377-bluetooth.yaml
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F: Documentation/devicetree/bindings/nvme/apple,nvme-ans.yaml
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F: Documentation/devicetree/bindings/nvmem/apple,efuses.yaml
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F: Documentation/devicetree/bindings/pci/apple,pcie.yaml
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--
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2.34.1
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