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([2a01:e0a:106d:1080:8290:9fd8:8af0:67dc]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-488fb75ab25sm85827105e9.11.2026.04.20.01.47.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 20 Apr 2026 01:47:21 -0700 (PDT) Message-ID: Date: Mon, 20 Apr 2026 10:47:20 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Neil Armstrong Reply-To: Neil Armstrong Subject: Re: [PATCH v2 3/3] arm64: dts: amlogic: t7: khadas-vim4: Enable Bluetooth To: Ronald Claveau , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260416-add-bluetooth-t7-vim4-v2-0-9a57098fd055@aliel.fr> <20260416-add-bluetooth-t7-vim4-v2-3-9a57098fd055@aliel.fr> Content-Language: en-US, fr Autocrypt: addr=neil.armstrong@linaro.org; keydata= xsBNBE1ZBs8BCAD78xVLsXPwV/2qQx2FaO/7mhWL0Qodw8UcQJnkrWmgTFRobtTWxuRx8WWP GTjuhvbleoQ5Cxjr+v+1ARGCH46MxFP5DwauzPekwJUD5QKZlaw/bURTLmS2id5wWi3lqVH4 BVF2WzvGyyeV1o4RTCYDnZ9VLLylJ9bneEaIs/7cjCEbipGGFlfIML3sfqnIvMAxIMZrvcl9 qPV2k+KQ7q+aXavU5W+yLNn7QtXUB530Zlk/d2ETgzQ5FLYYnUDAaRl+8JUTjc0CNOTpCeik 80TZcE6f8M76Xa6yU8VcNko94Ck7iB4vj70q76P/J7kt98hklrr85/3NU3oti3nrIHmHABEB AAHNKk5laWwgQXJtc3Ryb25nIDxuZWlsLmFybXN0cm9uZ0BsaW5hcm8ub3JnPsLAkQQTAQoA OwIbIwULCQgHAwUVCgkICwUWAgMBAAIeAQIXgBYhBInsPQWERiF0UPIoSBaat7Gkz/iuBQJk Q5wSAhkBAAoJEBaat7Gkz/iuyhMIANiD94qDtUTJRfEW6GwXmtKWwl/mvqQtaTtZID2dos04 YqBbshiJbejgVJjy+HODcNUIKBB3PSLaln4ltdsV73SBcwUNdzebfKspAQunCM22Mn6FBIxQ GizsMLcP/0FX4en9NaKGfK6ZdKK6kN1GR9YffMJd2P08EO8mHowmSRe/ExAODhAs9W7XXExw UNCY4pVJyRPpEhv373vvff60bHxc1k/FF9WaPscMt7hlkbFLUs85kHtQAmr8pV5Hy9ezsSRa GzJmiVclkPc2BY592IGBXRDQ38urXeM4nfhhvqA50b/nAEXc6FzqgXqDkEIwR66/Gbp0t3+r yQzpKRyQif3OwE0ETVkGzwEIALyKDN/OGURaHBVzwjgYq+ZtifvekdrSNl8TIDH8g1xicBYp QTbPn6bbSZbdvfeQPNCcD4/EhXZuhQXMcoJsQQQnO4vwVULmPGgtGf8PVc7dxKOeta+qUh6+ SRh3vIcAUFHDT3f/Zdspz+e2E0hPV2hiSvICLk11qO6cyJE13zeNFoeY3ggrKY+IzbFomIZY 4yG6xI99NIPEVE9lNBXBKIlewIyVlkOaYvJWSV+p5gdJXOvScNN1epm5YHmf9aE2ZjnqZGoM Mtsyw18YoX9BqMFInxqYQQ3j/HpVgTSvmo5ea5qQDDUaCsaTf8UeDcwYOtgI8iL4oHcsGtUX oUk33HEAEQEAAcLAXwQYAQIACQUCTVkGzwIbDAAKCRAWmrexpM/4rrXiB/sGbkQ6itMrAIfn M7IbRuiSZS1unlySUVYu3SD6YBYnNi3G5EpbwfBNuT3H8//rVvtOFK4OD8cRYkxXRQmTvqa3 3eDIHu/zr1HMKErm+2SD6PO9umRef8V82o2oaCLvf4WeIssFjwB0b6a12opuRP7yo3E3gTCS KmbUuLv1CtxKQF+fUV1cVaTPMyT25Od+RC1K+iOR0F54oUJvJeq7fUzbn/KdlhA8XPGzwGRy 4zcsPWvwnXgfe5tk680fEKZVwOZKIEuJC3v+/yZpQzDvGYJvbyix0lHnrCzq43WefRHI5XTT QbM0WUIBIcGmq38+OgUsMYu4NzLu7uZFAcmp6h8g Organization: Linaro In-Reply-To: <20260416-add-bluetooth-t7-vim4-v2-3-9a57098fd055@aliel.fr> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 4/16/26 10:54, Ronald Claveau wrote: > Enable UART C on the Khadas VIM4 board and attach the BCM43438 > compatible Bluetooth controller to it. The node configures the RTS/CTS > hardware flow control, the associated pinmux, the power supplies (vddao_3v3 > and vddao_1v8), the 32 kHz LPO clock shared with the wifi32k fixed > clock, and the GPIO lines used for host wakeup, device wakeup and > shutdown. > > Remove clocks and clock-names for UART A, as they are defined in DTSI. This should be a separate patch. Neil > > Signed-off-by: Ronald Claveau > --- > .../dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts | 21 +++++++++++++++++++-- > 1 file changed, 19 insertions(+), 2 deletions(-) > > diff --git a/arch/arm64/boot/dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts b/arch/arm64/boot/dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts > index 69d6118ba57e7..8ea7ae609fbd5 100644 > --- a/arch/arm64/boot/dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts > +++ b/arch/arm64/boot/dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts > @@ -250,6 +250,23 @@ &sd_emmc_c { > > &uart_a { > status = "okay"; > - clocks = <&xtal>, <&xtal>, <&xtal>; > - clock-names = "xtal", "pclk", "baud"; > +}; > + > +&uart_c { > + status = "okay"; > + pinctrl-0 = <&uart_c_pins>; > + pinctrl-names = "default"; > + uart-has-rtscts; > + > + bluetooth { > + compatible = "brcm,bcm43438-bt"; > + shutdown-gpios = <&gpio GPIOX_17 GPIO_ACTIVE_HIGH>; > + host-wakeup-gpios = <&gpio GPIOX_18 GPIO_ACTIVE_HIGH>; > + device-wakeup-gpios = <&gpio GPIOX_19 GPIO_ACTIVE_HIGH>; > + max-speed = <3000000>; > + clocks = <&wifi32k>; > + clock-names = "lpo"; > + vbat-supply = <&vddao_3v3>; > + vddio-supply = <&vddao_1v8>; > + }; > }; >