diff mbox series

[v5,01/21] ARM: dts: aspeed: yosemite4: Revise i2c-mux devices

Message ID 20240131084134.328307-2-Delphine_CC_Chiu@wiwynn.com (mailing list archive)
State New, archived
Headers show
Series Add i2c-mux and eeprom devices for Meta Yosemite 4 | expand

Commit Message

Delphine CC Chiu Jan. 31, 2024, 8:41 a.m. UTC 
Revise Yosemite 4 devicetree for devices behind i2c-mux
- Add gpio and eeprom behind i2c-mux
- Remove redundant idle-state setting for i2c-mux

Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com>
---
 .../aspeed/aspeed-bmc-facebook-yosemite4.dts  | 381 ++++++++++++++++--
 1 file changed, 347 insertions(+), 34 deletions(-)

Comments

Andrew Jeffery Feb. 1, 2024, 3:46 a.m. UTC | #1 
Hi Delphine,

On Wed, 2024-01-31 at 16:41 +0800, Delphine CC Chiu wrote:
> Revise Yosemite 4 devicetree for devices behind i2c-mux
> - Add gpio and eeprom behind i2c-mux
> - Remove redundant idle-state setting for i2c-mux

Generally if you find yourself listing things the patch does in the
commit message it's an indicator you should split the patch up.

It looks like there's a lot of stuff to be fixed, but it doesn't need
to all be fixed in the one commit (as 01/21 suggests I guess). The
devicetree is already inaccurate, it's okay if a subset of the
inaccuracies survive for another patch or so.

Otherwise, if they must be changed together, it would be good to have a
description of *why*. Broadly, the commit message should explain *why*
the change is need regardless, not discuss *what* the patch changes
(that's evident from the patch itself).

> 
> Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com>
> ---
>  .../aspeed/aspeed-bmc-facebook-yosemite4.dts  | 381 ++++++++++++++++--
>  1 file changed, 347 insertions(+), 34 deletions(-)
> 
>  
> -	i2c-mux@71 {
> -		compatible = "nxp,pca9846";
> +	i2c-mux@74 {
> +		compatible = "nxp,pca9546";

Aside from splitting the patch on adding more devices and removing the
redundant idle-state settings, things like this should probably be
separate too.

Why was the address changed? Was it always wrong? Or has there been a
new revision of the board? A separate commit with some explanation here
would be useful.

>  		#address-cells = <1>;
>  		#size-cells = <0>;
> -
> -		idle-state = <0>;
>  		i2c-mux-idle-disconnect;
> -		reg = <0x71>;
> +		reg = <0x74>;
>  
> -		i2c@0 {
> +		imux30: i2c@0 {
>  			#address-cells = <1>;
>  			#size-cells = <0>;
>  			reg = <0>;
> @@ -450,26 +726,26 @@ i2c@0 {
>  			adc@1f {
>  				compatible = "ti,adc128d818";
>  				reg = <0x1f>;
> -				ti,mode = /bits/ 8 <2>;
> +				ti,mode = /bits/ 8 <1>;

This isn't discussed anywhere. There should probably be a separate
change for anything adc128d818-related that explains what's going on
here.

>  			};
>  
>  			pwm@20{
> -				compatible = "max31790";
> +				compatible = "maxim,max31790";
> +				pwm-as-tach = <4 5>;
>  				reg = <0x20>;
> -				#address-cells = <1>;
> -				#size-cells = <0>;

This also isn't discussed anywhere. There should probably be a separate
change for anything max31790-related that explains what's going on
here.

>  			};
>  
>  			gpio@22{
>  				compatible = "ti,tca6424";
>  				reg = <0x22>;
> +				gpio-controller;
> +				#gpio-cells = <2>;

Also not discussed. Separate change for anything tca6424-related that
explains what's going on here.

>  			};
>  
> -			pwm@23{
> -				compatible = "max31790";
> -				reg = <0x23>;
> -				#address-cells = <1>;
> -				#size-cells = <0>;
> +			pwm@2f{
> +				compatible = "maxim,max31790";
> +				pwm-as-tach = <4 5>;
> +				reg = <0x2f>;
>  			};

Should go in the max31790-related patch.

>  
>  			adc@33 {
> @@ -492,34 +768,34 @@ gpio@61 {
>  			};
>  		};
>  
> -		i2c@1 {
> +		imux31: i2c@1 {
>  			#address-cells = <1>;
>  			#size-cells = <0>;
> -			reg = <0>;
> +			reg = <1>;
>  
>  			adc@1f {
>  				compatible = "ti,adc128d818";
>  				reg = <0x1f>;
> -				ti,mode = /bits/ 8 <2>;
> +				ti,mode = /bits/ 8 <1>;

Should go in the adc128d818 patch

>  			};
>  
>  			pwm@20{
> -				compatible = "max31790";
> +				compatible = "maxim,max31790";
> +				pwm-as-tach = <4 5>;
>  				reg = <0x20>;
> -				#address-cells = <1>;
> -				#size-cells = <0>;
>  			};

Should go in the max31790 patch

>  
>  			gpio@22{
>  				compatible = "ti,tca6424";
>  				reg = <0x22>;
> +				gpio-controller;
> +				#gpio-cells = <2>;

Should go in the tca6424 patch

>  			};
>  
> -			pwm@23{
> -				compatible = "max31790";
> -				reg = <0x23>;
> -				#address-cells = <1>;
> -				#size-cells = <0>;
> +			pwm@2f{
> +				compatible = "maxim,max31790";
> +				pwm-as-tach = <4 5>;
> +				reg = <0x2f>;

Should go in the max31790 patch

Andrew
diff mbox series

Patch

diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite4.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite4.dts
index 64075cc41d92..dac58d3ea63c 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite4.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite4.dts
@@ -17,6 +17,25 @@  aliases {
 		serial6 = &uart7;
 		serial7 = &uart8;
 		serial8 = &uart9;
+
+		i2c16 = &imux16;
+		i2c17 = &imux17;
+		i2c18 = &imux18;
+		i2c19 = &imux19;
+		i2c20 = &imux20;
+		i2c21 = &imux21;
+		i2c22 = &imux22;
+		i2c23 = &imux23;
+		i2c24 = &imux24;
+		i2c25 = &imux25;
+		i2c26 = &imux26;
+		i2c27 = &imux27;
+		i2c28 = &imux28;
+		i2c29 = &imux29;
+		i2c30 = &imux30;
+		i2c31 = &imux31;
+		i2c32 = &imux32;
+		i2c33 = &imux33;
 	};
 
 	chosen {
@@ -259,9 +278,109 @@  &i2c8 {
 	bus-frequency = <400000>;
 	i2c-mux@70 {
 		compatible = "nxp,pca9544";
-		idle-state = <0>;
 		i2c-mux-idle-disconnect;
 		reg = <0x70>;
+
+		imux16: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+
+			gpio@49 {
+				compatible = "nxp,pca9537";
+				reg = <0x49>;
+			};
+
+			eeprom@50 {
+				compatible = "atmel,24c128";
+				reg = <0x50>;
+			};
+
+			eeprom@51 {
+				compatible = "atmel,24c128";
+				reg = <0x51>;
+			};
+
+			eeprom@54 {
+				compatible = "atmel,24c128";
+				reg = <0x54>;
+			};
+		};
+
+		imux17: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+			gpio@49 {
+				compatible = "nxp,pca9537";
+				reg = <0x49>;
+			};
+
+			eeprom@50 {
+				compatible = "atmel,24c128";
+				reg = <0x50>;
+			};
+
+			eeprom@51 {
+				compatible = "atmel,24c128";
+				reg = <0x51>;
+			};
+
+			eeprom@54 {
+				compatible = "atmel,24c128";
+				reg = <0x54>;
+			};
+		};
+
+		imux18: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+			gpio@49 {
+				compatible = "nxp,pca9537";
+				reg = <0x49>;
+			};
+
+			eeprom@50 {
+				compatible = "atmel,24c128";
+				reg = <0x50>;
+			};
+
+			eeprom@51 {
+				compatible = "atmel,24c128";
+				reg = <0x51>;
+			};
+
+			eeprom@54 {
+				compatible = "atmel,24c128";
+				reg = <0x54>;
+			};
+		};
+
+		imux19: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+			gpio@49 {
+				compatible = "nxp,pca9537";
+				reg = <0x49>;
+			};
+
+			eeprom@50 {
+				compatible = "atmel,24c128";
+				reg = <0x50>;
+			};
+
+			eeprom@51 {
+				compatible = "atmel,24c128";
+				reg = <0x51>;
+			};
+
+			eeprom@54 {
+				compatible = "atmel,24c128";
+				reg = <0x54>;
+			};
+		};
 	};
 };
 
@@ -270,15 +389,174 @@  &i2c9 {
 	bus-frequency = <400000>;
 	i2c-mux@71 {
 		compatible = "nxp,pca9544";
-		idle-state = <0>;
 		i2c-mux-idle-disconnect;
 		reg = <0x71>;
+
+		imux20: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+			gpio@49 {
+				compatible = "nxp,pca9537";
+				reg = <0x49>;
+			};
+
+			eeprom@50 {
+				compatible = "atmel,24c128";
+				reg = <0x50>;
+			};
+
+			eeprom@51 {
+				compatible = "atmel,24c128";
+				reg = <0x51>;
+			};
+
+			eeprom@54 {
+				compatible = "atmel,24c128";
+				reg = <0x54>;
+			};
+		};
+
+		imux21: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+			gpio@49 {
+				compatible = "nxp,pca9537";
+				reg = <0x49>;
+			};
+
+			eeprom@50 {
+				compatible = "atmel,24c128";
+				reg = <0x50>;
+			};
+
+			eeprom@51 {
+				compatible = "atmel,24c128";
+				reg = <0x51>;
+			};
+
+			eeprom@54 {
+				compatible = "atmel,24c128";
+				reg = <0x54>;
+			};
+		};
+
+		imux22: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+			gpio@49 {
+				compatible = "nxp,pca9537";
+				reg = <0x49>;
+			};
+
+			eeprom@50 {
+				compatible = "atmel,24c128";
+				reg = <0x50>;
+			};
+
+			eeprom@51 {
+				compatible = "atmel,24c128";
+				reg = <0x51>;
+			};
+
+			eeprom@54 {
+				compatible = "atmel,24c128";
+				reg = <0x54>;
+			};
+		};
+
+		imux23: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+
+			gpio@49 {
+				compatible = "nxp,pca9537";
+				reg = <0x49>;
+			};
+
+			eeprom@50 {
+				compatible = "atmel,24c128";
+				reg = <0x50>;
+			};
+
+			eeprom@51 {
+				compatible = "atmel,24c128";
+				reg = <0x51>;
+			};
+
+			eeprom@54 {
+				compatible = "atmel,24c128";
+				reg = <0x54>;
+			};
+		};
 	};
 };
 
 &i2c10 {
 	status = "okay";
 	bus-frequency = <400000>;
+	i2c-mux@74 {
+		compatible = "nxp,pca9544";
+		i2c-mux-idle-disconnect;
+		reg = <0x74>;
+
+		imux28: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+
+			gpio@20 {
+				compatible = "nxp,pca9506";
+				reg = <0x20>;
+				gpio-controller;
+				#gpio-cells = <2>;
+			};
+
+			gpio@21 {
+				compatible = "nxp,pca9506";
+				reg = <0x21>;
+				gpio-controller;
+				#gpio-cells = <2>;
+			};
+
+			gpio@22 {
+				compatible = "nxp,pca9506";
+				reg = <0x22>;
+				gpio-controller;
+				#gpio-cells = <2>;
+			};
+
+			gpio@23 {
+				compatible = "nxp,pca9506";
+				reg = <0x23>;
+				gpio-controller;
+				#gpio-cells = <2>;
+			};
+
+			gpio@24 {
+				compatible = "nxp,pca9506";
+				reg = <0x24>;
+				gpio-controller;
+				#gpio-cells = <2>;
+				gpio-line-names =
+				"","","","",
+				"NIC0-MAIN-PWR-EN","NIC1-MAIN-PWR-EN",
+				"NIC2-MAIN-PWR-EN","NIC3-MAIN-PWR-EN",
+				"","","","","","","","",
+				"","","","","","","","",
+				"","","","","","","","";
+			};
+		};
+
+		imux29: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+		};
+	};
 };
 
 &i2c11 {
@@ -433,16 +711,14 @@  eeprom@51 {
 		reg = <0x51>;
 	};
 
-	i2c-mux@71 {
-		compatible = "nxp,pca9846";
+	i2c-mux@74 {
+		compatible = "nxp,pca9546";
 		#address-cells = <1>;
 		#size-cells = <0>;
-
-		idle-state = <0>;
 		i2c-mux-idle-disconnect;
-		reg = <0x71>;
+		reg = <0x74>;
 
-		i2c@0 {
+		imux30: i2c@0 {
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <0>;
@@ -450,26 +726,26 @@  i2c@0 {
 			adc@1f {
 				compatible = "ti,adc128d818";
 				reg = <0x1f>;
-				ti,mode = /bits/ 8 <2>;
+				ti,mode = /bits/ 8 <1>;
 			};
 
 			pwm@20{
-				compatible = "max31790";
+				compatible = "maxim,max31790";
+				pwm-as-tach = <4 5>;
 				reg = <0x20>;
-				#address-cells = <1>;
-				#size-cells = <0>;
 			};
 
 			gpio@22{
 				compatible = "ti,tca6424";
 				reg = <0x22>;
+				gpio-controller;
+				#gpio-cells = <2>;
 			};
 
-			pwm@23{
-				compatible = "max31790";
-				reg = <0x23>;
-				#address-cells = <1>;
-				#size-cells = <0>;
+			pwm@2f{
+				compatible = "maxim,max31790";
+				pwm-as-tach = <4 5>;
+				reg = <0x2f>;
 			};
 
 			adc@33 {
@@ -492,34 +768,34 @@  gpio@61 {
 			};
 		};
 
-		i2c@1 {
+		imux31: i2c@1 {
 			#address-cells = <1>;
 			#size-cells = <0>;
-			reg = <0>;
+			reg = <1>;
 
 			adc@1f {
 				compatible = "ti,adc128d818";
 				reg = <0x1f>;
-				ti,mode = /bits/ 8 <2>;
+				ti,mode = /bits/ 8 <1>;
 			};
 
 			pwm@20{
-				compatible = "max31790";
+				compatible = "maxim,max31790";
+				pwm-as-tach = <4 5>;
 				reg = <0x20>;
-				#address-cells = <1>;
-				#size-cells = <0>;
 			};
 
 			gpio@22{
 				compatible = "ti,tca6424";
 				reg = <0x22>;
+				gpio-controller;
+				#gpio-cells = <2>;
 			};
 
-			pwm@23{
-				compatible = "max31790";
-				reg = <0x23>;
-				#address-cells = <1>;
-				#size-cells = <0>;
+			pwm@2f{
+				compatible = "maxim,max31790";
+				pwm-as-tach = <4 5>;
+				reg = <0x2f>;
 			};
 
 			adc@33 {
@@ -547,12 +823,10 @@  i2c-mux@73 {
 		compatible = "nxp,pca9544";
 		#address-cells = <1>;
 		#size-cells = <0>;
-
-		idle-state = <0>;
 		i2c-mux-idle-disconnect;
 		reg = <0x73>;
 
-		i2c@0 {
+		imux32: i2c@0 {
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <0>;
@@ -563,10 +837,10 @@  adc@35 {
 			};
 		};
 
-		i2c@1 {
+		imux33: i2c@1 {
 			#address-cells = <1>;
 			#size-cells = <0>;
-			reg = <0>;
+			reg = <1>;
 
 			adc@35 {
 				compatible = "maxim,max11617";
@@ -589,9 +863,48 @@  mctp@10 {
 
 	i2c-mux@72 {
 		compatible = "nxp,pca9544";
-		idle-state = <0>;
 		i2c-mux-idle-disconnect;
 		reg = <0x72>;
+
+		imux24: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+			temperature-sensor@1f {
+				compatible = "ti,tmp421";
+				reg = <0x1f>;
+			};
+		};
+
+		imux25: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+			temperature-sensor@1f {
+				compatible = "ti,tmp421";
+				reg = <0x1f>;
+			};
+		};
+
+		imux26: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+			temperature-sensor@1f {
+				compatible = "ti,tmp421";
+				reg = <0x1f>;
+			};
+		};
+
+		imux27: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+			temperature-sensor@1f {
+				compatible = "ti,tmp421";
+				reg = <0x1f>;
+			};
+		};
 	};
 };