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Message-ID: <20200605100614.14726-1-Ben_Pai@wistron.com>
Date: Fri, 5 Jun 2020 18:06:14 +0800
From: Ben Pai <Ben_Pai@...tron.com>
To: <joel@....id.au>, <devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-aspeed@...ts.ozlabs.org>, <linux-kernel@...r.kernel.org>
CC: <claire_ku@...tron.com>, Ben Pai <Ben_Pai@...tron.com>
Subject: [PATCH v1 1/2] ARM: dts: aspeed: mihawk: IO expander uses TCA9554 driver
Set smbus_en of IO expander to 1 in order to be able to read sensor.
Signed-off-by: Ben Pai <Ben_Pai@...tron.com>
---
arch/arm/boot/dts/aspeed-bmc-opp-mihawk.dts | 112 ++++++++++++++++++++
1 file changed, 112 insertions(+)
diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-mihawk.dts b/arch/arm/boot/dts/aspeed-bmc-opp-mihawk.dts
index eac6ed2bbc67..25ffe65fbdc0 100644
--- a/arch/arm/boot/dts/aspeed-bmc-opp-mihawk.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-opp-mihawk.dts
@@ -820,12 +820,40 @@
#address-cells = <1>;
#size-cells = <0>;
reg = <0>;
+
+ tca9554@39 {
+ compatible = "ti,tca9554";
+ reg = <0x39>;
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ smbus0 {
+ gpio-hog;
+ gpios = <4 GPIO_ACTIVE_HIGH>;
+ output-high;
+ line-name = "smbus0";
+ };
+ };
};
bus9_mux232: i2c@1 {
#address-cells = <1>;
#size-cells = <0>;
reg = <1>;
+
+ tca9554@39 {
+ compatible = "ti,tca9554";
+ reg = <0x39>;
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ smbus1 {
+ gpio-hog;
+ gpios = <4 GPIO_ACTIVE_HIGH>;
+ output-high;
+ line-name = "smbus1";
+ };
+ };
};
bus9_mux233: i2c@2 {
@@ -855,12 +883,40 @@
#address-cells = <1>;
#size-cells = <0>;
reg = <0>;
+
+ tca9554@39 {
+ compatible = "ti,tca9554";
+ reg = <0x39>;
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ smbus2 {
+ gpio-hog;
+ gpios = <4 GPIO_ACTIVE_HIGH>;
+ output-high;
+ line-name = "smbus2";
+ };
+ };
};
bus9_mux236: i2c@1 {
#address-cells = <1>;
#size-cells = <0>;
reg = <1>;
+
+ tca9554@39 {
+ compatible = "ti,tca9554";
+ reg = <0x39>;
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ smbus3 {
+ gpio-hog;
+ gpios = <4 GPIO_ACTIVE_HIGH>;
+ output-high;
+ line-name = "smbus3";
+ };
+ };
};
bus9_mux237: i2c@2 {
@@ -909,12 +965,40 @@
#address-cells = <1>;
#size-cells = <0>;
reg = <0>;
+
+ tca9554@39 {
+ compatible = "ti,tca9554";
+ reg = <0x39>;
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ smbus4 {
+ gpio-hog;
+ gpios = <4 GPIO_ACTIVE_HIGH>;
+ output-high;
+ line-name = "smbus4";
+ };
+ };
};
bus10_mux240: i2c@1 {
#address-cells = <1>;
#size-cells = <0>;
reg = <1>;
+
+ tca9554@39 {
+ compatible = "ti,tca9554";
+ reg = <0x39>;
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ smbus5 {
+ gpio-hog;
+ gpios = <4 GPIO_ACTIVE_HIGH>;
+ output-high;
+ line-name = "smbus5";
+ };
+ };
};
bus10_mux241: i2c@2 {
@@ -944,12 +1028,40 @@
#address-cells = <1>;
#size-cells = <0>;
reg = <0>;
+
+ tca9554@39 {
+ compatible = "ti,tca9554";
+ reg = <0x39>;
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ smbus6 {
+ gpio-hog;
+ gpios = <4 GPIO_ACTIVE_HIGH>;
+ output-high;
+ line-name = "smbus6";
+ };
+ };
};
bus10_mux244: i2c@1 {
#address-cells = <1>;
#size-cells = <0>;
reg = <1>;
+
+ tca9554@39 {
+ compatible = "ti,tca9554";
+ reg = <0x39>;
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ smbus7 {
+ gpio-hog;
+ gpios = <4 GPIO_ACTIVE_HIGH>;
+ output-high;
+ line-name = "smbus7";
+ };
+ };
};
bus10_mux245: i2c@2 {
--
2.17.1
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