[PATCH 00/11] staging: comedi: s626: more cleanups
Ian Abbott
abbotti at mev.co.uk
Sat Oct 19 23:41:39 UTC 2013
On 19/10/13 21:48, Greg Kroah-Hartman wrote:
> On Fri, Oct 18, 2013 at 02:40:48PM +0100, Ian Abbott wrote:
>> Tidy up the "s626" driver a bit more. In particular, the handling of
>> encoder setup values is a bit hard to follow with lots of bit-shifting
>> and masking, particularly when converting between the "standardized"
>> setup values and the 'CRA' and 'CRB' register values. (There are 6
>> encoders in all, split between 3 pairs of encoders, 'A' and 'B', with
>> each pair controlled by a pair of 'CRA' and 'CRB' registers. The 'A'
>> encoder is mostly set-up by the 'CRA' register and the 'B' encoder is
>> mostly set-up by the 'CRB' register, but both registers are involved in
>> setting up each encoder.)
>>
>> Also, avoid some confusion between the overall mode of the encoder
>> specified in the "standardized" setup value and the "counter source"
>> value in the hardware, expand the "index source" values in the
>> standardized setup value to cover all the hardware values to keep things
>> simple, and remove some macros that duplicate the values of other
>> macros.
>>
>> 01) staging: comedi: s626: clock polarity and direction are the same
>> 02) staging: comedi: s626: specify bitshift for encoder A clock source
>> 03) staging: comedi: s626: correct a comment in s626_get_mode_b()
>> 04) staging: comedi: s626: distinguish counter src from encoder mode
>> 05) staging: comedi: s626: correct S626_CRAMSK_CLKPOL_A macro (unused)
>> 06) staging: comedi: s626: add missing bits for 'CRB' register
>> 07) staging: comedi: s626: bitfield manipulation macros for CRA, CRB and
>> setup
>
> I've applied these first 7 due to the problem found in 08. Can you fix
> that up and resend the rest?
Yes, but it'll have to wait until Monday.
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