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Commit 6da28acf authored by Bartosz Golaszewski's avatar Bartosz Golaszewski
Browse files

dt-bindings: at24: consistently document the compatible property 



Current description of the compatible property for at24 is quite vague.

State explicitly that any "<manufacturer>,<model>" pair is accepted as
long as a correct fallback is used for non-atmel chips.

Signed-off-by: default avatarBartosz Golaszewski <brgl@bgdev.pl>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
parent 98fb3a34

Documentation/devicetree/bindings/eeprom/at24.txt

+36 −22
Original line number Diff line number Diff line
@@ -2,28 +2,42 @@ EEPROMs (I2C) 


Required properties:



  - compatible : should be "<manufacturer>,<type>", like these:

  - compatible: Must be a "<manufacturer>,<model>" pair. The following <model>

                values are supported (assuming "atmel" as manufacturer):



                "atmel,24c00",

                "atmel,24c01",

                "atmel,24c02",

                "atmel,spd",

                "atmel,24c04",

                "atmel,24c08",

                "atmel,24c16",

                "atmel,24c32",

                "atmel,24c64",

                "atmel,24c128",

                "atmel,24c256",

                "atmel,24c512",

                "atmel,24c1024",



                If <manufacturer> is not "atmel", then a fallback must be used

                with the same <model> and "atmel" as manufacturer.



	"atmel,24c00", "atmel,24c01", "atmel,24c02", "atmel,24c04",

	"atmel,24c08", "atmel,24c16", "atmel,24c32", "atmel,24c64",

	"atmel,24c128", "atmel,24c256", "atmel,24c512", "atmel,24c1024"



	"catalyst,24c32"



	"microchip,24c128"

                Example:

                        compatible = "microchip,24c128", "atmel,24c128";



	"ramtron,24c64"

                Supported manufacturers are:



	"renesas,r1ex24002"

                "catalyst",

                "microchip",

                "ramtron",

                "renesas",

                "nxp",

                "st",



	The following manufacturers values have been deprecated:

	"at", "at24"

                Some vendors use different model names for chips which are just

                variants of the above. Known such exceptions are listed below:



	 If there is no specific driver for <manufacturer>, a generic

	 device with <type> and manufacturer "atmel" should be used.

	 Possible types are:

	 "24c00", "24c01", "24c02", "24c04", "24c08", "24c16", "24c32", "24c64",

	 "24c128", "24c256", "24c512", "24c1024", "spd"

                "renesas,r1ex24002" - the fallback is "atmel,24c02"



  - reg : the I2C address of the EEPROM