On Mon, Jun 25, 2018 at 03:29:43PM +0800, [email protected] wrote: > From: "alanx.chiang" <[email protected]> > > The AT24 series chips use 8-bit address by default. If some > chips would like to support more than 8 bits, the at24 driver > should be added the compatible field for specfic chips. > > Provide a flexible way to determine the addressing bits through > address-width in this patch. > > Signed-off-by: Alan Chiang <[email protected]> > Signed-off-by: Andy Yeh <[email protected]> > Reviewed-by: Sakari Ailus <[email protected]> > Reviewed-by: Andy Shevchenko <[email protected]> > Reviewed-by: Rajmohan Mani <[email protected]> > --- > Documentation/devicetree/bindings/eeprom/at24.txt | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/Documentation/devicetree/bindings/eeprom/at24.txt > b/Documentation/devicetree/bindings/eeprom/at24.txt > index 61d833a..5879259 100644 > --- a/Documentation/devicetree/bindings/eeprom/at24.txt > +++ b/Documentation/devicetree/bindings/eeprom/at24.txt > @@ -72,6 +72,8 @@ Optional properties: > > - wp-gpios: GPIO to which the write-protect pin of the chip is connected. > > + - address-width : number of address bits (one of 8, 16). > + > Example: > > eeprom@52 { > @@ -79,4 +81,5 @@ eeprom@52 { > reg = <0x52>; > pagesize = <32>; > wp-gpios = <&gpio1 3 0>; > + address-width = <16>;
Since we're only now adding address-width, it hasn't been needed previously. Therefore I wouldn't add it to an example. > }; -- Sakari Ailus [email protected]
