arm64: zynqmp: Enable iio-hwmon for ina226 on zcu100

ina226 hwmon driver is deprecated and it is recommended to use new iio
based driver. The patch is enabling iio-hwmon driver to export
functionality from IIO to hwmon interface to be able to use lm-sensors
package.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/arch/arm/dts/zynqmp-zcu100-revC.dts b/arch/arm/dts/zynqmp-zcu100-revC.dts
index 5285f62..14aa98d 100644 (file)
--- a/arch/arm/dts/zynqmp-zcu100-revC.dts
+++ b/arch/arm/dts/zynqmp-zcu100-revC.dts
@@ -124,6 +124,11 @@
                compatible = "mmc-pwrseq-simple";
                reset-gpios = <&gpio 7 GPIO_ACTIVE_LOW>; /* WIFI_EN */
        };
+
+       ina226 {
+               compatible = "iio-hwmon";
+               io-channels = <&u35 0>, <&u35 1>, <&u35 2>, <&u35 3>;
+       };
 };
 
 &dcc {
@@ -216,8 +221,9 @@
                        #size-cells = <0>;
                        reg = <5>;
                        /* PS_PMBUS */
-                       ina226@40 { /* u35 */
+                       u35: ina226@40 { /* u35 */
                                compatible = "ti,ina226";
+                               #io-channel-cells = <1>;
                                reg = <0x40>;
                                shunt-resistor = <10000>;
                                /* MIO31 is alert which should be routed to PMUFW */