From: Michal Simek <michal.simek@xilinx.com>
Date: Mon, 26 Aug 2019 07:30:34 +0000 (+0200)
Subject: arm64: zynqmp: Enable iio-hwmon for ina226 on zcu100
X-Git-Tag: v2020.01-rc1~8^2~39
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=f5c48644ba252c4bb68dce25d1bfc86368dc324f;p=oweals%2Fu-boot.git

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 5285f62d1a..14aa98de73 100644
--- 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 */