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Thu, 24 Jul 2025 13:25:26 -0700 (PDT) From: Alex Elder To: lee@kernel.org, lgirdwood@gmail.com, broonie@kernel.org, alexandre.belloni@bootlin.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org Cc: mat.jonczyk@o2.pl, dlan@gentoo.org, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, alex@ghiti.fr, linux.amoon@gmail.com, troymitchell988@gmail.com, guodong@riscstar.com, linux-rtc@vger.kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH v9 6/8] riscv: dts: spacemit: enable the i2c8 adapter Date: Thu, 24 Jul 2025 15:25:07 -0500 Message-ID: <20250724202511.499288-7-elder@riscstar.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250724202511.499288-1-elder@riscstar.com> References: <20250724202511.499288-1-elder@riscstar.com> Precedence: bulk X-Mailing-List: linux-rtc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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/boot/dts/spacemit/k1-bananapi-f3.dts index fe22c747c5012..7c9f91c88e01a 100644 --- a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts +++ b/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts @@ -40,6 +40,21 @@ &emmc { status = "okay"; }; +&i2c8 { + pinctrl-0 = <&i2c8_cfg>; + pinctrl-names = "default"; + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + pmic@41 { + compatible = "spacemit,p1"; + reg = <0x41>; + interrupts = <64>; + status = "okay"; + }; +}; + &uart0 { pinctrl-names = "default"; pinctrl-0 = <&uart0_2_cfg>; diff --git a/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi b/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi index 3810557374228..96d7a46d4bf77 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) &pinctrl { + i2c8_cfg: i2c8-cfg { + i2c8-0-pins { + pinmux = , /* PWR_SCL */ + ; /* PWR_SDA */ + }; + }; + uart0_2_cfg: uart0-2-cfg { uart0-2-pins { pinmux = , diff --git a/arch/riscv/boot/dts/spacemit/k1.dtsi b/arch/riscv/boot/dts/spacemit/k1.dtsi index abde8bb07c95c..2a5a132d5a774 100644 --- a/arch/riscv/boot/dts/spacemit/k1.dtsi +++ b/arch/riscv/boot/dts/spacemit/k1.dtsi @@ -459,6 +459,17 @@ pwm7: pwm@d401bc00 { status = "disabled"; }; + i2c8: i2c@d401d800 { + compatible = "spacemit,k1-i2c"; + reg = <0x0 0xd401d800 0x0 0x38>; + interrupts = <19>; + clocks = <&syscon_apbc CLK_TWSI8>, + <&syscon_apbc CLK_TWSI8_BUS>; + clock-names = "func", "bus"; + clock-frequency = <400000>; + status = "disabled"; + }; + pinctrl: pinctrl@d401e000 { compatible = "spacemit,k1-pinctrl"; reg = <0x0 0xd401e000 0x0 0x400>; -- 2.43.0