[Intel-gfx] [PATCH] drm/i915: Add breadcrumbs for why the backlight is being set

[Daniel Vetter]

On Sun, Oct 13, 2013 at 12:56:31PM +0100, Chris Wilson wrote:
> At the moment we have 3 paths that lead to actually_set_backlight(),
> from modesetting, ACPI/OpRegion requests and our very own
> intel_backlight interface, and we have no way of distinguishing them in
> the debug log. So add a debug breadcrumb to explain the source of the
> backlight changes.
> 
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

Yeah, we seem to have a bunch of bugs where the backlight somehow gets
smashed to 0 and we don't know why. Queued for -next, thanks for the
patch.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch