linux-kernel - [PATCH] arm: dts: aspeed: tiogapass: add hotplug controller

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Message-Id: <20210415140521.11352-1-fercerpav@gmail.com>
Date:   Thu, 15 Apr 2021 17:05:00 +0300
From:   Paul Fertser <fercerpav@...il.com>
To:     linux-aspeed@...ts.ozlabs.org
Cc:     Paul Fertser <fercerpav@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Joel Stanley <joel@....id.au>,
        Andrew Jeffery <andrew@...id.au>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] arm: dts: aspeed: tiogapass: add hotplug controller

The ADM1278 IC is accessible on I2C bus and on both Wiwynn and Quanta
Tioga Pass implementations a pair of parallel 0.5 mOhm resistors is used
for current measurement.

Signed-off-by: Paul Fertser <fercerpav@...il.com>
---
 arch/arm/boot/dts/aspeed-bmc-facebook-tiogapass.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed-bmc-facebook-tiogapass.dts b/arch/arm/boot/dts/aspeed-bmc-facebook-tiogapass.dts
index 3cc2004fa2f2..500661956dea 100644
--- a/arch/arm/boot/dts/aspeed-bmc-facebook-tiogapass.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-facebook-tiogapass.dts
@@ -591,6 +591,11 @@
 &i2c7 {
 	status = "okay";
 	//HSC, AirMax Conn A
+	adm1278@...5 {
+		compatible = "adm1275";
+		reg = <0x45>;
+		shunt-resistor-micro-ohms = <250>;
+	};
 };
 
 &i2c8 {
-- 
2.17.1