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[73.228.159.35]) by smtp.gmail.com with ESMTPSA id e9e14a558f8ab-3de019b44b3sm4996315ab.10.2025.06.13.14.01.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Jun 2025 14:01:59 -0700 (PDT) From: Alex Elder To: lee@kernel.org, lgirdwood@gmail.com, broonie@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, dlan@gentoo.org Cc: paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, alex@ghiti.fr, troymitchell988@gmail.com, guodong@riscstar.com, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH 4/6] riscv: dts: spacemit: enable the i2c8 adapter Date: Fri, 13 Jun 2025 16:01:47 -0500 Message-ID: <20250613210150.1468845-5-elder@riscstar.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20250613210150.1468845-1-elder@riscstar.com> References: <20250613210150.1468845-1-elder@riscstar.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Define properties for the I2C adapter that provides access to the SpacemiT P1 PMIC. Enable this adapter on the Banana Pi BPI-F3. Signed-off-by: Alex Elder --- arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts | 15 +++++++++++++++ arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi | 7 +++++++ arch/riscv/boot/dts/spacemit/k1.dtsi | 11 +++++++++++ 3 files changed, 33 insertions(+) diff --git a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts b/arch/riscv/b= oot/dts/spacemit/k1-bananapi-f3.dts index 816ef1bc358ec..f5d454937d300 100644 --- a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts +++ b/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts @@ -30,6 +30,21 @@ led1 { }; }; =20 +&i2c8 { + pinctrl-0 =3D <&i2c8_cfg>; + pinctrl-names =3D "default"; + #address-cells =3D <1>; + #size-cells =3D <0>; + status =3D "okay"; + + pmic@41 { + compatible =3D "spacemit,p1"; + reg =3D <0x41>; + interrupts =3D <64>; + status =3D "okay"; + }; +}; + &uart0 { pinctrl-names =3D "default"; pinctrl-0 =3D <&uart0_2_cfg>; diff --git a/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi b/arch/riscv/boot= /dts/spacemit/k1-pinctrl.dtsi index 283663647a86f..9d6d4503fe751 100644 --- a/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi +++ b/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi @@ -11,6 +11,13 @@ #define K1_GPIO(x) (x / 32) (x % 32) =20 &pinctrl { + i2c8_cfg: i2c8-cfg { + i2c8-0-pins { + pinmux =3D , /* PWR_SCL */ + ; /* PWR_SDA */ + }; + }; + uart0_2_cfg: uart0-2-cfg { uart0-2-pins { pinmux =3D , diff --git a/arch/riscv/boot/dts/spacemit/k1.dtsi b/arch/riscv/boot/dts/spa= cemit/k1.dtsi index c0f8c5fca975d..34e843bd275fa 100644 --- a/arch/riscv/boot/dts/spacemit/k1.dtsi +++ b/arch/riscv/boot/dts/spacemit/k1.dtsi @@ -483,6 +483,17 @@ gpio: gpio@d4019000 { <&pinctrl 3 0 96 32>; }; =20 + i2c8: i2c@d401d800 { + compatible =3D "spacemit,k1-i2c"; + reg =3D <0x0 0xd401d800 0x0 0x38>; + interrupts =3D <19>; + clocks =3D <&syscon_apbc CLK_TWSI8>, + <&syscon_apbc CLK_TWSI8_BUS>; + clock-names =3D "func", "bus"; + clock-frequency =3D <400000>; + status =3D "disabled"; + }; + pinctrl: pinctrl@d401e000 { compatible =3D "spacemit,k1-pinctrl"; reg =3D <0x0 0xd401e000 0x0 0x400>; --=20 2.45.2