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@xxxxxxxxxx>
---
v2: remove underscores in node names
---
.../dts/altera/socfpga_stratix10_socdk.dts | 23 +++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts b/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts
index 17752ca743e5..38ae674f2f02 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 @@ sdmmca-ecc@ff8c8c00 {
};
};
+&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 @@ &i2c1 {
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>;
--
2.25.1
