arm64: dts: stratix10: add i2c pins for pinctrl
Add the I2C pins definition to the Stratix10 devkit. This allows for the
I2C driver to use pinctrl on the pins to allow for GPIO recovery.
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
---
v2: remove underscores in node names
diff --git a/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts b/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts
index 17752ca..38ae674 100644
--- a/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts
+++ b/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts
@@ -65,6 +65,22 @@
};
};
+&pinctrl0 {
+ i2c1_pmx_func: i2c1-pmx-func {
+ pinctrl-single,pins = <
+ 0x78 0x4 /* I2C1_SDA (IO6-B) PIN30SEL) */
+ 0x7c 0x4 /* I2C1_SCL (IO7-B) PIN31SEL */
+ >;
+ };
+
+ i2c1_pmx_func_gpio: i2c1-pmx-func-gpio {
+ pinctrl-single,pins = <
+ 0x78 0x8 /* I2C1_SDA (IO6-B) PIN30SEL) */
+ 0x7c 0x8 /* I2C1_SCL (IO7-B) PIN31SEL */
+ >;
+ };
+};
+
&gpio1 {
status = "okay";
};
@@ -131,6 +147,13 @@
i2c-sda-falling-time-ns = <890>; /* hcnt */
i2c-sdl-falling-time-ns = <890>; /* lcnt */
+ pinctrl-names = "default", "gpio";
+ pinctrl-0 = <&i2c1_pmx_func>;
+ pinctrl-1 = <&i2c1_pmx_func_gpio>;
+
+ scl-gpios = <&portb 6 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ sda-gpios = <&portb 7 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+
adc@14 {
compatible = "lltc,ltc2497";
reg = <0x14>;
