Re: linux-next: build failure after merge of the final tree (pwm tree related)

On Tuesday 03 July 2012, Thierry Reding wrote:

On Tue, Jul 03, 2012 at 04:18:46PM +1000, Stephen Rothwell wrote:

quoted

Hi Thierry,

On Tue, 3 Jul 2012 08:11:15 +0200 Thierry Reding [off-list ref] wrote:

quoted

I don't see how that can happen. If you have CONFIG_TWL6030_PWM=y, then
you should also have CONFIG_HAVE_PWM=y, which would in turn conflict
with CONFIG_PWM=y.

I'll have to fetch a powerpc toolchain and try to reproduce this.

CONFIG_HAVE_PWM only exists on arm, mips and unicore32 ... so the "select
HAVE_PWM" will not do anything on any other architecture.

So one option would be to add HAVE_PWM on powerpc, or alternatively to
explicitly add a conflict to the TWL6030_PWM symbol (and any others that
implement the legacy API). I'd think the second alternative is
preferable and actually matches what Arnd proposed previously. Maybe
this was exactly the reason he suggested that solution in the first
place.

It's not what I was thinking of explicitly, but it's a good
reason nonetheless ;-)

	Arnd