On Tue, Nov 4, 2014 at 2:38 PM, Mika Westerberg
<mika.westerberg@xxxxxxxxxxxxxxx> wrote:
> On Tue, Nov 04, 2014 at 02:18:26PM +0000, Grant Likely wrote:
>> > - strncpy(chip->name, np->name, sizeof(chip->name));
>> > + strncpy(chip->name, "at25", sizeof(chip->name));
>>
>> This line changes behaviour of the driver. It's possibly not a problem,
>> but it should be commented on and whether any due diligance has been
>> done to make sure it there isn't anything that depends on it.
>
> I found only one user for "atmel,at25" in any of the DT sample files.
>
> arch/arm/boot/dts/phy3250.dts:
>
> eeprom: at25@0 {
> ...
> at25,byte-len = <0x8000>;
> at25,addr-mode = <2>;
> at25,page-size = <64>;
>
> compatible = "atmel,at25";
> reg = <0>;
> spi-max-frequency = <5000000>;
> };
>
> I think np->name is "at25" in this case? The binding file
> Documentation/devicetree/bindings/misc/at25.txt also has the same name.
>
> Are you OK, if we add something like below to the changelog?
>
> In addition we hard-code the name of the chip to be "at25" for the
> reason that there is no common mechanism to fetch name of the firmware
> node. The only existing user (arch/arm/boot/dts/phy3250.dts) uses the
> same name so it should continue to work.
Yes. If somebody complains, then we can reinstate the previous
behaviour, but assume it isn't necessary for now.
g.
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