Re: [PATCH] drm/i2c/ch7006: Convert to dev_pm_ops

[Mark Brown]

On Wed, Jun 27, 2012 at 10:21:46AM +0100, Dave Airlie wrote:

> Thanks for this and I like the fact its been posted 5 times but never
> compiled once.

It's hard to remember since it was so long ago that I wrote the patch
but I rather suspect the reason this didn't happen is that it's actually
fairly hard to enable for test builds as the relevant Kconfig is buried
in a different directory (it's done as part of the Nouveau driver) with
no immediate relationship with the code.  That said...

> Can you at least test compile it?

...it could also be that the build error I get when I enable CONFIG_DRM
with -next is a long standing one:

In file included from include/drm/drmP.h:75,
                 from drivers/gpu/drm/drm_auth.c:36:
include/drm/drm.h:47: fatal error: sys/ioccom.h: No such file or directory
compilation terminated.
make[3]: *** [drivers/gpu/drm/drm_auth.o] Error 1

The error here seems to be that you're relying on __linux__ to decide if
you're building the kernel but that's not something you can rely on, we
can build the kernel with a freestanding compiler and the compiler will
only define this if it targets a Linux userspace.  I happen to do pretty
much all of my kernel builds with a freestanding compiler.

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