On Mon, May 22, 2017 at 9:01 AM, Javier Martinez Canillas <javier@xxxxxxxxxxxx> wrote: > The at24 driver allows to register I2C EEPROM chips using different vendor > and devices, but the I2C subsystem does not take the vendor into account > when matching using the I2C table since it only has device entries. > > But when matching using an OF table, both the vendor and device has to be > taken into account, so the exact list of supported <vendor,device> tuples > should be documented in the Device Tree binding document. > > But there is no need to have different manufacturers if the EEPROM chips > from different manufacturers are really compatible, so matching using a > single "atmel" vendor is enough for all chip types. > > Document in the Device Tree binding that the "atmel" manufacturer should > be used, and also document the manufacturers that have been deprecated. > > Suggested-by: Wolfram Sang <wsa@xxxxxxxxxxxxx> > Suggested-by: Rob Herring <robh@xxxxxxxxxx> > Signed-off-by: Javier Martinez Canillas <javier@xxxxxxxxxxxx> > > --- > > Changes in v4: > - Document the manufacturers that have been deprecated (Rob Herring). I don't think that's what I said. > > Changes in v3: None > Changes in v2: None > > Documentation/devicetree/bindings/eeprom/eeprom.txt | 14 ++++---------- > 1 file changed, 4 insertions(+), 10 deletions(-) > > diff --git a/Documentation/devicetree/bindings/eeprom/eeprom.txt b/Documentation/devicetree/bindings/eeprom/eeprom.txt > index 5696eb508e95..121499252179 100644 > --- a/Documentation/devicetree/bindings/eeprom/eeprom.txt > +++ b/Documentation/devicetree/bindings/eeprom/eeprom.txt > @@ -2,22 +2,16 @@ EEPROMs (I2C) > > Required properties: > > - - compatible : should be "<manufacturer>,<type>", like these: > + - compatible : should be "atmel,<type>", like these: > > "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" > + The following manufacturers values have been deprecated: > + "at", "at24", "catalyst", "microchip", "nxp", "ramtron", "renesas", "st" Only at and at24 should be deprecated. > > - "microchip,24c128" > - > - "ramtron,24c64" > - > - "renesas,r1ex24002" > - > - If there is no specific driver for <manufacturer>, a generic > - driver based on <type> is selected. Possible types are: > + Possible types are: > "24c00", "24c01", "24c02", "24c04", "24c08", "24c16", "24c32", "24c64", > "24c128", "24c256", "24c512", "24c1024", "spd" > > -- > 2.9.3 > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
