From: Chen-Yu Tsai <wenst@chromium.org> To: Marcel Holtmann <marcel@holtmann.org>, Luiz Augusto von Dentz <luiz.dentz@gmail.com>, Rob Herring <robh+dt@kernel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, Conor Dooley <conor+dt@kernel.org>, Matthias Brugger <matthias.bgg@gmail.com>, AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Cc: Chen-Yu Tsai <wenst@chromium.org>, Sean Wang <sean.wang@mediatek.com>, linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, linux-mediatek@lists.infradead.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/2] dt-bindings: net: bluetooth: Add MediaTek MT7921S SDIO Bluetooth Date: Thu, 25 Jan 2024 17:52:37 +0800 [thread overview] Message-ID: <20240125095240.2308340-2-wenst@chromium.org> (raw) In-Reply-To: <20240125095240.2308340-1-wenst@chromium.org> The MediaTek MT7921S is a WiFi/Bluetooth combo chip that works over SDIO. While the Bluetooth function is fully discoverable, the chip has a pin that can reset just the Bluetooth side, as opposed to the full chip. This needs to be described in the device tree. Add a device tree binding for MT7921S Bluetooth over SDIO specifically ot document the reset line. Cc: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Chen-Yu Tsai <wenst@chromium.org> --- .../bluetooth/mediatek,mt7921s-bluetooth.yaml | 49 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 50 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/bluetooth/mediatek,mt7921s-bluetooth.yaml diff --git a/Documentation/devicetree/bindings/net/bluetooth/mediatek,mt7921s-bluetooth.yaml b/Documentation/devicetree/bindings/net/bluetooth/mediatek,mt7921s-bluetooth.yaml new file mode 100644 index 000000000000..bbe240e7cc40 --- /dev/null +++ b/Documentation/devicetree/bindings/net/bluetooth/mediatek,mt7921s-bluetooth.yaml @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/bluetooth/mediatek,mt7921s-bluetooth.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MediaTek MT7921S Bluetooth + +description: + This binding describes the Bluetooth side of the SDIO-attached MT7921S + WiFi+Bluetooth combo chips. These chips are dual-radio chips supporting + WiFi and Bluetooth. Bluetooth works over SDIO just like WiFi. Bluetooth + has its own reset line, separate from WiFi, which can be used to reset + the Bluetooth core. + +maintainers: + - Sean Wang <sean.wang@mediatek.com> + +properties: + compatible: + enum: + - mediatek,mt7921s-bluetooth + reg: + const: 2 + + reset-gpios: + maxItems: 1 + description: A GPIO line connected to the Bluetooth subsystem reset line. + Typically the W_DISABLE2# pin on M.2 E-key modules. If present this + shall be flagged as active low. + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + mmc { + #address-cells = <1>; + #size-cells = <0>; + + bluetooth@2 { + compatible = "mediatek,mt7921s-bluetooth"; + reg = <2>; + reset-gpios = <&pio 8 GPIO_ACTIVE_LOW>; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index b64a64ca7916..662957146852 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -13657,6 +13657,7 @@ M: Sean Wang <sean.wang@mediatek.com> L: linux-bluetooth@vger.kernel.org L: linux-mediatek@lists.infradead.org (moderated for non-subscribers) S: Maintained +F: Documentation/devicetree/bindings/net/bluetooth/mediatek,mt7921s-bluetooth.yaml F: Documentation/devicetree/bindings/net/mediatek-bluetooth.txt F: drivers/bluetooth/btmtkuart.c -- 2.43.0.429.g432eaa2c6b-goog
WARNING: multiple messages have this Message-ID (diff)
From: Chen-Yu Tsai <wenst@chromium.org> To: Marcel Holtmann <marcel@holtmann.org>, Luiz Augusto von Dentz <luiz.dentz@gmail.com>, Rob Herring <robh+dt@kernel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, Conor Dooley <conor+dt@kernel.org>, Matthias Brugger <matthias.bgg@gmail.com>, AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Cc: Chen-Yu Tsai <wenst@chromium.org>, Sean Wang <sean.wang@mediatek.com>, linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, linux-mediatek@lists.infradead.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/2] dt-bindings: net: bluetooth: Add MediaTek MT7921S SDIO Bluetooth Date: Thu, 25 Jan 2024 17:52:37 +0800 [thread overview] Message-ID: <20240125095240.2308340-2-wenst@chromium.org> (raw) In-Reply-To: <20240125095240.2308340-1-wenst@chromium.org> The MediaTek MT7921S is a WiFi/Bluetooth combo chip that works over SDIO. While the Bluetooth function is fully discoverable, the chip has a pin that can reset just the Bluetooth side, as opposed to the full chip. This needs to be described in the device tree. Add a device tree binding for MT7921S Bluetooth over SDIO specifically ot document the reset line. Cc: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Chen-Yu Tsai <wenst@chromium.org> --- .../bluetooth/mediatek,mt7921s-bluetooth.yaml | 49 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 50 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/bluetooth/mediatek,mt7921s-bluetooth.yaml diff --git a/Documentation/devicetree/bindings/net/bluetooth/mediatek,mt7921s-bluetooth.yaml b/Documentation/devicetree/bindings/net/bluetooth/mediatek,mt7921s-bluetooth.yaml new file mode 100644 index 000000000000..bbe240e7cc40 --- /dev/null +++ b/Documentation/devicetree/bindings/net/bluetooth/mediatek,mt7921s-bluetooth.yaml @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/bluetooth/mediatek,mt7921s-bluetooth.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MediaTek MT7921S Bluetooth + +description: + This binding describes the Bluetooth side of the SDIO-attached MT7921S + WiFi+Bluetooth combo chips. These chips are dual-radio chips supporting + WiFi and Bluetooth. Bluetooth works over SDIO just like WiFi. Bluetooth + has its own reset line, separate from WiFi, which can be used to reset + the Bluetooth core. + +maintainers: + - Sean Wang <sean.wang@mediatek.com> + +properties: + compatible: + enum: + - mediatek,mt7921s-bluetooth + reg: + const: 2 + + reset-gpios: + maxItems: 1 + description: A GPIO line connected to the Bluetooth subsystem reset line. + Typically the W_DISABLE2# pin on M.2 E-key modules. If present this + shall be flagged as active low. + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + mmc { + #address-cells = <1>; + #size-cells = <0>; + + bluetooth@2 { + compatible = "mediatek,mt7921s-bluetooth"; + reg = <2>; + reset-gpios = <&pio 8 GPIO_ACTIVE_LOW>; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index b64a64ca7916..662957146852 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -13657,6 +13657,7 @@ M: Sean Wang <sean.wang@mediatek.com> L: linux-bluetooth@vger.kernel.org L: linux-mediatek@lists.infradead.org (moderated for non-subscribers) S: Maintained +F: Documentation/devicetree/bindings/net/bluetooth/mediatek,mt7921s-bluetooth.yaml F: Documentation/devicetree/bindings/net/mediatek-bluetooth.txt F: drivers/bluetooth/btmtkuart.c -- 2.43.0.429.g432eaa2c6b-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2024-01-25 9:52 UTC|newest] Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-01-25 9:52 [PATCH 0/2] bluetooth: mt7921s: Add binding and fixup existing dts Chen-Yu Tsai 2024-01-25 9:52 ` Chen-Yu Tsai 2024-01-25 9:52 ` Chen-Yu Tsai [this message] 2024-01-25 9:52 ` [PATCH 1/2] dt-bindings: net: bluetooth: Add MediaTek MT7921S SDIO Bluetooth Chen-Yu Tsai 2024-01-25 10:13 ` bluetooth: mt7921s: Add binding and fixup existing dts bluez.test.bot 2024-01-25 11:39 ` [PATCH 1/2] dt-bindings: net: bluetooth: Add MediaTek MT7921S SDIO Bluetooth AngeloGioacchino Del Regno 2024-01-25 11:39 ` AngeloGioacchino Del Regno 2024-01-26 3:26 ` Chen-Yu Tsai 2024-01-26 3:26 ` Chen-Yu Tsai 2024-01-26 9:12 ` AngeloGioacchino Del Regno 2024-01-26 9:12 ` AngeloGioacchino Del Regno 2024-01-26 3:02 ` Rob Herring 2024-01-26 3:02 ` Rob Herring 2024-01-25 9:52 ` [PATCH 2/2] arm64: dts: mediatek: mt8183-pico6: Fix bluetooth node Chen-Yu Tsai 2024-01-25 9:52 ` Chen-Yu Tsai 2024-01-25 11:40 ` AngeloGioacchino Del Regno 2024-01-25 11:40 ` AngeloGioacchino Del Regno
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