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[109.206.198.27]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6aab38a9756sm3306589a12.25.2026.09.24.00.14.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Sep 2026 00:14:49 -0700 (PDT) From: Adam Wermuth To: Heiko Stuebner Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Adam Wermuth Subject: [PATCH 0/3] Subject: [PATCH 0/3] arm64: dts: rockchip: Enable M.2 B-key slot and fan on Radxa ROCK 3B Date: Thu, 24 Sep 2026 09:14:42 +0200 Message-ID: <20260924071445.441822-1-adam@wermuth.pl> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260924_001452_645571_4D094D6C X-CRM114-Status: GOOD ( 10.53 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The Radxa ROCK 3B has an M.2 B-key slot intended for 4G/5G modules and a 2-pin fan header, neither of which is currently described in the mainline device tree. Patch 1 enables the second USB 2.0 host controller, which serves the USB lines of the B-key slot. Patch 2 describes the power, reset and W_DISABLE# controls of the slot. Patch 3 adds the PWM fan and ties it to the CPU thermal zone. Pin assignments were checked against the ROCK 3B V1.51 schematic. Tested on a ROCK 3B with a SIMCom SIM7600G-H module and a 5V fan, running Linux 6.12 (OpenWrt) with the same changes applied. Adam Wermuth (3): arm64: dts: rockchip: Enable USB 2.0 host1 on Radxa ROCK 3B arm64: dts: rockchip: Enable M.2 B-key WWAN slot on Radxa ROCK 3B arm64: dts: rockchip: Add PWM fan to Radxa ROCK 3B .../boot/dts/rockchip/rk3568-rock-3b.dts | 102 ++++++++++++++++++ 1 file changed, 102 insertions(+) base-commit: 23d8f49fcae5d72b77744c7f349c12462c3bb748 -- 2.43.0