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[109.206.198.27]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c2ae757b9c1sm76976966b.33.2026.09.25.01.03.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 25 Sep 2026 01:03:02 -0700 (PDT) From: Adam Wermuth To: Heiko Stuebner Cc: Jonas Karlman , 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 v2 0/2] arm64: dts: rockchip: Add PWM fan and WWAN overlay for Radxa ROCK 3B Date: Fri, 25 Sep 2026 10:02:56 +0200 Message-ID: <20260925080258.46489-1-adam@wermuth.pl> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260925_010306_337122_2F48CD1A X-CRM114-Status: GOOD ( 12.65 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org The Radxa ROCK 3B has a 2-pin fan header and an M.2 B-key slot intended for 4G/5G modules, neither of which is currently described in the mainline device tree. Patch 1 adds the PWM fan and ties it to the CPU thermal zone. Patch 2 adds a device tree overlay for the B-key slot, enabling the USB 2.0 host controller serving the slot as well as its power, RESET# and W_DISABLE1# controls. 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. Changes in v2: - Move the USB host1 enablement and the WWAN slot handling into a new rk3568-rock-3b-wwan.dtso overlay, as the slot is not always populated (Jonas) - Drop phy-supply from usb2phy1_host, as the M.2 slot has no VBUS - Put the fan patch first, as it no longer depends on the others v1: https://lore.kernel.org/linux-rockchip/20260924071445.441822-1-adam@wermuth.pl/ Adam Wermuth (2): arm64: dts: rockchip: Add PWM fan to Radxa ROCK 3B arm64: dts: rockchip: Add WWAN overlay for Radxa ROCK 3B arch/arm64/boot/dts/rockchip/Makefile | 5 ++ .../dts/rockchip/rk3568-rock-3b-wwan.dtso | 65 +++++++++++++++++++ .../boot/dts/rockchip/rk3568-rock-3b.dts | 51 +++++++++++++++ 3 files changed, 121 insertions(+) create mode 100644 arch/arm64/boot/dts/rockchip/rk3568-rock-3b-wwan.dtso base-commit: 23d8f49fcae5d72b77744c7f349c12462c3bb748 -- 2.43.0 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip