[RFC PATCH v1] EP93XX: Add ADC support

[Christian Gagneraud]

H Hartley Sweeten wrote:
> On Monday, October 12, 2009 7:24 AM, Christian Gagneraud wrote:
>> This patch add support for the ADC found in the EP93XX.
>>
>> This work is based on S3C platform ADC, apart from hardware related
>> stuff, the following modifications have been done:
>> - Remove touchscreen support:
>>   On S3C the TS is a "normal" ADC client, but it has priority over all
>>   other clients. On EP93XX the TS controller is built-in and offer
>>   advanced features.
>> - Remove convert and select callbacks:
>>   This was done for the shake of simplicity, it can be added easily.
>> - Channel definition:
>>   On S3c, channel is just an index (unsigned char). On EP93xx channel
>>   is the analog switch configuration (unsigned long), it gives the
>>   client full freedom on how to make the analog conversion (including
>>   routing VRef+ and VRef-, activationg PU/PD resistors, connecting
>>   pins to VDD/GND, ...)
>>
>>
>> This is a first draft. Comments and criticism welcome.
>>
>> Signed-off-by: Christian Gagneraud <cgagneraud at techworks.ie>
>> ---
> 
> [snip]
> 
>> diff --git a/arch/arm/mach-ep93xx/Makefile b/arch/arm/mach-ep93xx/Makefile
>> index eae6199..e3c62fe 100644
>> --- a/arch/arm/mach-ep93xx/Makefile
>> +++ b/arch/arm/mach-ep93xx/Makefile
>> @@ -6,6 +6,8 @@ obj-m			:=
>>  obj-n			:=
>>  obj-			:=
>>  
>> +obj-$(CONFIG_EP93XX_ADC)	+= adc.o
> 
> This Kconfig option is not defined in the patch.

Oops, it has vanished into a black hole! ;)

Thanks
Chris

> 
> Regards,
> Hartley
> 
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