[PATCH] [ARM] pxa/cm-x300: fix build breakage caused by missing 'select CPU_PXA310'

[Mike Rapoport]

Russell King - ARM Linux wrote:
> On Tue, Dec 15, 2009 at 06:28:27PM +0200, Mike Rapoport wrote:
>> Eric,
>> Apparently Igor's patches for CM-X300 were not applied properly. Somehow
>> commit db205463fd24c0972ad2c4e4fafb1c76e51b4380
>> ([ARM] pxa/cm-x300: add PWM backlight support) introduced 'select HAVE_PWM'
>> to MACH_COLIBRY300 rather than CM-X300. I suspect that the same happened with
>> the patch that added 'select CPU_PXA310' to MACH_CM_X300. I'm not certain about
>> removing PWM support in Colibri, but MACH_CM_X300 need to get fixed.
> 
> You need to look at the original commit you mention above, and check
> whether it has been applied correctly.  If not, it needs to be reverted
> and the correct change applied.

I've checked the commit and the original patch, and it seems we've screwed it up
from the beginning while cherry-picking commits between branches...
However, the patch that adds 'select CPU_PXA310' ([1]) is correct and apparently
was not applied properly (commit def8252ddb9bc52434b2ac1d560a609c61849638,
[ARM] pxa/cm-x300: add support for PXA310 cpu).

How shall we continue? Eric, will you revert commit db205463f and I will resend
corrected PWM patch?

> This is one of the problems of patching Kconfig files that grow over
> time - diff only gives at most six lines of context (three lines either
> side), and it is possible to have those same six lines of context
> repeated several times in Kconfig files.  Now add an additional set of
> lines towards the start of the Kconfig file, and such a diff will get
> incorrectly applied.
> 
> Unfortunately, this is one of the down sides to using git apply over
> GNU patch - GNU patch will tell you if it applied a patch with an offset.
> git tools won't, so it's not obvious if a patch has been mis-applied.
> 

[1] http://article.gmane.org/gmane.linux.ports.arm.kernel/67022/match=igor+grinberg

-- 
Sincerely yours,
Mike.