[alsa-devel] [PATCH 3/8] mfd: arizona: Add support for WM8998 and WM1814

[Richard Fitzgerald]

On Wed, Apr 22, 2015 at 12:08:08PM +0100, Mark Brown wrote:
> On Tue, Apr 21, 2015 at 01:33:51PM +0100, Richard Fitzgerald wrote:
> 
> > +	switch (arizona->type) {
> > +	case WM8998:
> > +	case WM1814:
> > +		/* Some bits are shifted on WM8998,
> > +		 * rearrange to match the standard bit layout
> > +		 */
> > +		val[0] = ((val[0] & 0x60e0) >> 1) |
> > +			 ((val[0] & 0x1e00) >> 2) |
> > +			 (val[0] & 0x000f);
> > +		break;
> 
> Are you sure this approach is going to scale (and avoid confusion)?

It's a total one-off for the WM8998/WM1814, no other codecs have
this shifted-bit-position problem. This shouldn't happen for any
future codecs, so I don't feel like it's worth over-complicating it.