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ARM: dts: AM33XX: Add tsl2550 ambient light sensor DT data

PATCH New AnilKumar Ch 2 participants 4 messages Sep 21, 2012 – Oct 18, 2012 Device tree bindings

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PATCH 1/1 ARM: dts: AM33XX: Add tsl2550 ambient light sensor DT data

Add tsl2550 ambient light sensor DT data to am335x-evm.dts. In AM335x EVM tsl2550 ambient light sensor is connected to I2C2 bus. So this patch adds child node inside i2c2 node with i2c slave address.

TAOS tsl2550 sensor with two-wire SMBus serial interface. This patch also reduces I2C2 clock frequency to 100KHz from 400KHz because the maximum clock frequency of SMBus is 100KHz.

---
 arch/arm/boot/dts/am335x-evm.dts |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
arch/arm/boot/dts/am335x-evm.dts +6 -1
index 3b1f313..d99aa0f 100644
@@ -49,7 +49,7 @@
 
 		i2c2: i2c at 4802a000 {
 			status = "okay";
-			clock-frequency = <400000>;
+			clock-frequency = <100000>;
 
 			lis331dlh: lis331dlh at 18 {
 				compatible = "st,lis331dlh", "st,lis3lv02d";
@@ -79,6 +79,11 @@
 				st,max-limit-z = <750>;
 			};
 
+			tsl2550: tsl2550 at 39 {
+				compatible = "taos,tsl2550";
+				reg = <0x39>;
+			};
+
 			tmp275: tmp275 at 48 {
 				compatible = "ti,tmp275";
 				reg = <0x48>;
Signature · 1 line
1.7.9.5
#1 lore raw

PATCH 1/1 ARM: dts: AM33XX: Add tsl2550 ambient light sensor DT data

Quoted 28 lines · Chimata

Add tsl2550 ambient light sensor DT data to am335x-evm.dts. In AM335x EVM tsl2550 ambient light sensor is connected to I2C2 bus. So this patch adds child node inside i2c2 node with i2c slave address.

TAOS tsl2550 sensor with two-wire SMBus serial interface. This patch also reduces I2C2 clock frequency to 100KHz from 400KHz because the maximum clock frequency of SMBus is 100KHz.

---
 arch/arm/boot/dts/am335x-evm.dts |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
arch/arm/boot/dts/am335x-evm.dts +1 -1
index 3b1f313..d99aa0f 100644
@@ -49,7 +49,7 @@
 
 		i2c2: i2c at 4802a000 {
 			status = "okay";
-			clock-frequency = <400000>;
+			clock-frequency = <100000>;
 
 			lis331dlh: lis331dlh at 18 {
 				compatible = "st,lis331dlh", "st,lis3lv02d";
@@ -79,6 +79,11 @@
 				st,max-limit-z = <750>;

arch/arm/boot/dts/am335x-evm.dts line 89

Quoted 10 lines
arch/arm/boot/dts/am335x-evm.dts +5 -0
 			};
 
+			tsl2550: tsl2550 at 39 {
+				compatible = "taos,tsl2550";
+				reg = <0x39>;
+			};
+
 			tmp275: tmp275 at 48 {
 				compatible = "ti,tmp275";
 				reg = <0x48>;

Hi Tony/Benoit,

If there are no comments in this patch could you please take this in?

Thanks
AnilKumar

#2 lore raw

PATCH 1/1 ARM: dts: AM33XX: Add tsl2550 ambient light sensor DT data

Hi Anil,

Quoted 42 lines · Chimata
Quoted 28 lines · Chimata

Add tsl2550 ambient light sensor DT data to am335x-evm.dts. In AM335x EVM tsl2550 ambient light sensor is connected to I2C2 bus. So this patch adds child node inside i2c2 node with i2c slave address.

TAOS tsl2550 sensor with two-wire SMBus serial interface. This patch also reduces I2C2 clock frequency to 100KHz from 400KHz because the maximum clock frequency of SMBus is 100KHz.

---
 arch/arm/boot/dts/am335x-evm.dts |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
arch/arm/boot/dts/am335x-evm.dts +1 -1
index 3b1f313..d99aa0f 100644
@@ -49,7 +49,7 @@
 
 		i2c2: i2c at 4802a000 {
 			status = "okay";
-			clock-frequency = <400000>;
+			clock-frequency = <100000>;
 
 			lis331dlh: lis331dlh at 18 {
 				compatible = "st,lis331dlh", "st,lis3lv02d";
@@ -79,6 +79,11 @@
 				st,max-limit-z = <750>;

arch/arm/boot/dts/am335x-evm.dts line 89

Quoted 10 lines
arch/arm/boot/dts/am335x-evm.dts +5 -0
 			};
 
+			tsl2550: tsl2550 at 39 {
+				compatible = "taos,tsl2550";
+				reg = <0x39>;
+			};
+
 			tmp275: tmp275 at 48 {
 				compatible = "ti,tmp275";
 				reg = <0x48>;

Hi Tony/Benoit,

Quoted 1 line

If there are no comments in this patch could you please take this in?

Have you updated the binding documentation to list the device?

It should be in:
Documentation/devicetree/bindings/i2c/trivial-devices.txt

Please Cc as well the DT ml.

Regards,
Benoit

#3 lore raw

PATCH 1/1 ARM: dts: AM33XX: Add tsl2550 ambient light sensor DT data

+Grant, DTML

Quoted 45 lines · Benoit

Hi Anil,

Quoted 42 lines · Chimata
Quoted 28 lines · Chimata

Add tsl2550 ambient light sensor DT data to am335x-evm.dts. In AM335x EVM tsl2550 ambient light sensor is connected to I2C2 bus. So this patch adds child node inside i2c2 node with i2c slave address.

TAOS tsl2550 sensor with two-wire SMBus serial interface. This patch also reduces I2C2 clock frequency to 100KHz from 400KHz because the maximum clock frequency of SMBus is 100KHz.

---
 arch/arm/boot/dts/am335x-evm.dts |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
arch/arm/boot/dts/am335x-evm.dts +1 -1
index 3b1f313..d99aa0f 100644
@@ -49,7 +49,7 @@
 
 		i2c2: i2c at 4802a000 {
 			status = "okay";
-			clock-frequency = <400000>;
+			clock-frequency = <100000>;
 
 			lis331dlh: lis331dlh at 18 {
 				compatible = "st,lis331dlh", "st,lis3lv02d";
@@ -79,6 +79,11 @@
 				st,max-limit-z = <750>;

arch/arm/boot/dts/am335x-evm.dts line 89

Quoted 10 lines
arch/arm/boot/dts/am335x-evm.dts +5 -0
 			};
 
+			tsl2550: tsl2550 at 39 {
+				compatible = "taos,tsl2550";
+				reg = <0x39>;
+			};
+
 			tmp275: tmp275 at 48 {
 				compatible = "ti,tmp275";
 				reg = <0x48>;

Hi Tony/Benoit,

Quoted 7 lines
Quoted 1 line

If there are no comments in this patch could you please take this in?

Have you updated the binding documentation to list the device?

It should be in:
Documentation/devicetree/bindings/i2c/trivial-devices.txt

No I have not updated, I will send a separate patch by adding all the supported devices, missed from earlier (this device, tmp275 and lis331dlh)

Thanks
AnilKumar