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riscv: dts: spacemit: enable the i2c8 adapter

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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 <elder@riscstar.com>
Link: https://lore.kernel.org/r/20250825172057.163883-6-elder@riscstar.com
Signed-off-by: Yixun Lan <dlan@gentoo.org>
This commit is contained in:
Alex Elder 2025-08-25 12:20:54 -05:00 committed by Yixun Lan
parent 1187f9b3f6
commit 3e8d7309e6
No known key found for this signature in database
GPG Key ID: 31AAEA47594DBBED
3 changed files with 32 additions and 0 deletions
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12
arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts
View File

@ -92,6 +92,18 @@ &pdma {
status = "okay";
};
&i2c8 {
pinctrl-0 = <&i2c8_cfg>;
pinctrl-names = "default";
status = "okay";
pmic@41 {
compatible = "spacemit,p1";
reg = <0x41>;
interrupts = <64>;
};
};
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_2_cfg>;

7
arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi
View File

@ -59,6 +59,13 @@ gmac1-pins {
};
};
i2c8_cfg: i2c8-cfg {
i2c8-0-pins {
pinmux = <K1_PADCONF(93, 0)>, /* PWR_SCL */
<K1_PADCONF(94, 0)>; /* PWR_SDA */
};
};
/omit-if-no-ref/
uart0_0_cfg: uart0-0-cfg {
uart0-0-pins {

13
arch/riscv/boot/dts/spacemit/k1.dtsi
View File

@ -459,6 +459,19 @@ pwm7: pwm@d401bc00 {
status = "disabled";
};
i2c8: i2c@d401d800 {
compatible = "spacemit,k1-i2c";
reg = <0x0 0xd401d800 0x0 0x38>;
#address-cells = <1>;
#size-cells = <0>;
clocks = <&syscon_apbc CLK_TWSI8>,
<&syscon_apbc CLK_TWSI8_BUS>;
clock-names = "func", "bus";
clock-frequency = <400000>;
interrupts = <19>;
status = "disabled";
};
pinctrl: pinctrl@d401e000 {
compatible = "spacemit,k1-pinctrl";
reg = <0x0 0xd401e000 0x0 0x400>;