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Tue, 12 Aug 2025 13:30:35 -0700 (PDT) From: Alexey Charkov Date: Wed, 13 Aug 2025 00:30:25 +0400 Subject: [PATCH 3/3] arm64: dts: rockchip: Add Bluetooth on rk3576-evb1-v10 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250813-evb1-rtcwifibt-v1-3-d13c83422971@gmail.com> References: <20250813-evb1-rtcwifibt-v1-0-d13c83422971@gmail.com> In-Reply-To: <20250813-evb1-rtcwifibt-v1-0-d13c83422971@gmail.com> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Pavel Zhovner , Alexey Charkov X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1755030626; l=2008; i=alchark@gmail.com; s=20250416; h=from:subject:message-id; bh=Z46ZEe7O+jWIb3cQLmtasBStIyvB4eOFL1/6Uj9pPf8=; b=RQg31BRxfObH1cVBuJD4fSCw1UhS4ukP9dJLnufNSw+VBfFIYLbjeudwPAaPOhmQ/zr8CmtWj T5kSwCxhfcqBhEHdI4Qbo6cHZoG/vAF0oDbaA1OF8Ax5LUPH8J7jLej X-Developer-Key: i=alchark@gmail.com; a=ed25519; pk=ltKbQzKLTJPiDgPtcHxdo+dzFthCCMtC3V9qf7+0rkc= Add device tree nodes to enable Bluetooth in the Ampak AP6275P module found on Rockchip RK3576 EVB1 and connected over a UART link. Note that this doesn't enable the out-of-band PCM connection. It's routed to SAI2 M0 pins in case anyone wishes to add it. Tested-by: Pavel Zhovner Signed-off-by: Alexey Charkov --- arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts | 35 ++++++++++++++++++++= ++++ 1 file changed, 35 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts b/arch/arm64/= boot/dts/rockchip/rk3576-evb1-v10.dts index 100ca2e23c6093ae517d741fcd047e2a8172f457..d3e70a646fbe1e99cb007e7d9f0= 9da33beedc842 100644 --- a/arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts +++ b/arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts @@ -766,6 +766,20 @@ &pcie1 { }; =20 &pinctrl { + bluetooth { + bt_reg_on: bt-reg-on { + rockchip,pins =3D <1 RK_PC7 RK_FUNC_GPIO &pcfg_pull_up>; + }; + + bt_wake_host: bt-wake-host { + rockchip,pins =3D <0 RK_PB1 RK_FUNC_GPIO &pcfg_pull_down>; + }; + + host_wake_bt: host-wake-bt { + rockchip,pins =3D <1 RK_PD4 RK_FUNC_GPIO &pcfg_pull_up>; + }; + }; + hym8563 { rtc_int: rtc-int { rockchip,pins =3D <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>; @@ -843,6 +857,27 @@ &uart0 { status =3D "okay"; }; =20 +&uart4 { + pinctrl-0 =3D <&uart4m1_xfer &uart4m1_ctsn &uart4m1_rtsn>; + pinctrl-names =3D "default"; + uart-has-rtscts; + status =3D "okay"; + + bluetooth { + compatible =3D "brcm,bcm43438-bt"; + clocks =3D <&hym8563>; + clock-names =3D "lpo"; + device-wakeup-gpios =3D <&gpio1 RK_PD4 GPIO_ACTIVE_HIGH>; + interrupt-parent =3D <&gpio0>; + interrupts =3D ; + pinctrl-0 =3D <&bt_reg_on &bt_wake_host &host_wake_bt>; + pinctrl-names =3D "default"; + shutdown-gpios =3D <&gpio1 RK_PC7 GPIO_ACTIVE_HIGH>; + vbat-supply =3D <&vcc_3v3_s3>; + vddio-supply =3D <&vcc_1v8_s3>; + }; +}; + &ufshc { status =3D "okay"; }; --=20 2.49.1