From 7313cde52aed3f391ad25a66f283d6cac27afaf1 Mon Sep 17 00:00:00 2001
From: Matthew Barth <msbarth@us.ibm.com>
Date: Mon, 29 Mar 2021 10:00:11 -0500
Subject: [PATCH] ARM: dts: aspeed: everest: Add max31785 fan controller device

Add the max31785 configuration at address 0x52 on i2c14 behind mux0
channel 3.

Signed-off-by: Matthew Barth <msbarth@us.ibm.com>
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20210329150020.13632-14-eajames@linux.ibm.com
Signed-off-by: Joel Stanley <joel@jms.id.au>
---
 arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts | 44 +++++++++++++++++++++++++---
 1 file changed, 40 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts b/arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts
index ab7be4d511a5..9fbb3afd0f8a 100644
--- a/arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts
@@ -59,10 +59,11 @@
 		i2c27 = &i2c14mux0chn0;
 		i2c28 = &i2c14mux0chn1;
 		i2c29 = &i2c14mux0chn2;
-		i2c30 = &i2c14mux1chn0;
-		i2c31 = &i2c14mux1chn1;
-		i2c32 = &i2c14mux1chn2;
-		i2c33 = &i2c14mux1chn3;
+		i2c30 = &i2c14mux0chn3;
+		i2c31 = &i2c14mux1chn0;
+		i2c32 = &i2c14mux1chn1;
+		i2c33 = &i2c14mux1chn2;
+		i2c34 = &i2c14mux1chn3;
 
 		serial4 = &uart5;
 
@@ -457,6 +458,41 @@
 				reg = <0x50>;
 			};
 		};
+
+		i2c14mux0chn3: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+
+			max31785@52 {
+				compatible = "maxim,max31785a";
+				reg = <0x52>;
+
+				fan@0 {
+					compatible = "pmbus-fan";
+					reg = <0>;
+					tach-pulses = <2>;
+				};
+
+				fan@1 {
+					compatible = "pmbus-fan";
+					reg = <1>;
+					tach-pulses = <2>;
+				};
+
+				fan@2 {
+					compatible = "pmbus-fan";
+					reg = <2>;
+					tach-pulses = <2>;
+				};
+
+				fan@3 {
+					compatible = "pmbus-fan";
+					reg = <3>;
+					tach-pulses = <2>;
+				};
+			};
+		};
 	};
 
 	i2c-switch@71 {
-- 
2.11.0