Re: [Xen-devel] [PATCH] drm: Split out drm_probe_helper.h

[Daniel Vetter <daniel@xxxxxxxx>]

On Wed, Jan 16, 2019 at 07:10:18PM +0100, Sam Ravnborg wrote:
> Hi Daniel.
> 
> > v5: Actually try to sort them, and while at it, sort all the ones I
> > touch.
> 
> Applied this variant on top of drm-misc and did a build test.
> Looked good for ia64, x86 and alpha.
> 
> Took a closer look at the changes to atmel_hlcd - and they looked OK.
> 
> But I noticed that atmel_hlcdc uses only drm_kms_helper_poll_init() and
> drm_kms_helper_poll_fini().
> But there are no hits on DRM_CONNECTOR_POLL - so I think we maybe
> have a driver here where we have plugged the drm_poll infrastructure,
> but it is not in use.
> 
> >  include/drm/drm_crtc_helper.h                 | 16 -----------
> 
> The list of include files in this file could be dropped and replaced by:
> struct drm_connector;
> struct drm_device;
> struct drm_display_mode;
> struct drm_encoder;
> struct drm_framebuffer;
> struct drm_mode_set;
> struct drm_modeset_acquire_ctx;
> 
> I tried to do so on top of your patch.
> But there were too many build errros and I somehow lost the motivation.

Yeah the drm_crtc_helper.h header is a bit the miniature drmP.h for legacy
kms drivers. Just removing it from all the atomic drivers caused lots of
fallout, I expect even more if you entirely remove the includes it has.
Maybe a todo, care to pls create that patch since it's your idea?
-Daniel

> 
> 
> >  include/drm/drm_probe_helper.h                | 27 +++++++++++++++++++
> This on the other hand is fine - as expected as this is a new file.
> 
> But the above is just some random comments so:
> 
> Acked-by: Sam Ravnborg <sam@xxxxxxxxxxxx>

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

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