On 08/31/2012 04:51 PM, Nicolas Ferre wrote:
>>> diff --git a/arch/arm/mach-at91/at91rm9200.c b/arch/arm/mach-at91/at91rm9200.c
>>> index f2112f9..0bc91e5 100644
>>> --- a/arch/arm/mach-at91/at91rm9200.c
>>> +++ b/arch/arm/mach-at91/at91rm9200.c
>>> @@ -187,7 +187,7 @@ static struct clk_lookup periph_clocks_lookups[] = {
>>> CLKDEV_CON_DEV_ID("pclk", "ssc.0",&ssc0_clk),
>>> CLKDEV_CON_DEV_ID("pclk", "ssc.1",&ssc1_clk),
>>> CLKDEV_CON_DEV_ID("pclk", "ssc.2",&ssc2_clk),
>>> - CLKDEV_CON_DEV_ID(NULL, "at91_i2c",&twi_clk),
>>> + CLKDEV_CON_DEV_ID(NULL, "at91rm9200_i2c",&twi_clk),
>> use i2c-xxx as on other drivers
>>
>> and I do not like to have platform_device_id
>
> Me, I like it and find this implementation very elegant.
>
>> as we need to touch the driver to add a new soc
>
> So what? We still keep the compatibility if the new SoC has it
> compatibility assured with previous revision: there is nothing to modify.
I agree. The driver would need to be touched to support new SoC only if
the IP there have had some differences, which would have needed to be
resolved anyway.
>> please use platform data
Using platform data for the dt platforms would have been more troublesome,
wouldn't it ? I like Ludovic's approach which handles both: dt and non-dt
cases in uniform way from the driver's POV.
> No, it does not have to be exposed to the user: these data are highly
> dependent on the actual hardware (IP revision in fact). So, no need to
> mess with platform data.
Agreed.
> So I will acknowledge Ludo's patches.
>
> Bye,
--
Regards,
Sylwester
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