RE: [PATCH 08/14] drm/amdgpu: Remove default best_encoder hook from DC

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> -----Original Message-----
> From: Daniel Vetter <daniel.vetter@xxxxxxxx>
> Sent: Wednesday, September 5, 2018 9:48 AM
> To: Li, Sun peng (Leo) <Sunpeng.Li@xxxxxxx>
> Cc: DRI Development <dri-devel@xxxxxxxxxxxxxxxxxxxxx>; Intel Graphics
> Development <intel-gfx@xxxxxxxxxxxxxxxxxxxxx>; Daniel Vetter
> <daniel.vetter@xxxxxxxxx>; Deucher, Alexander
> <Alexander.Deucher@xxxxxxx>; Wentland, Harry
> <Harry.Wentland@xxxxxxx>; Grodzovsky, Andrey
> <Andrey.Grodzovsky@xxxxxxx>; Cheng, Tony <Tony.Cheng@xxxxxxx>; S,
> Shirish <Shirish.S@xxxxxxx>
> Subject: Re: [PATCH 08/14] drm/amdgpu: Remove default best_encoder
> hook from DC
> 
> On Wed, Sep 5, 2018 at 3:45 PM, Leo Li <sunpeng.li@xxxxxxx> wrote:
> >
> >
> > On 2018-09-03 12:54 PM, Daniel Vetter wrote:
> >>
> >> For atomic driver this is the default, no need to reimplement it. We
> >> still need to keep the copypasta for not-atomic drivers though, since
> >> no one polished the legacy crtc helpers as much as the atomic ones.
> >
> >
> > Thanks for the patch! It seems I made an identical change here:
> > https://lists.freedesktop.org/archives/amd-gfx/2018-August/026064.html
> >
> > One line difference though. I wasn't aware that the default is used
> > when .best_encoder is null, so I just hooked it to the default helper.
> >
> > If it's OK with you, I'll do a follow-up to drop the hook, so we don't
> > have two conflicting patches in flight.
> 
> I have a follow-up patches to unexport the helper, so would be good if Alex
> sends out the pull request so I can sort this all out in drm-misc-next. I don't
> want to split up the patch series if possible.
> Or we just deal with the conflict, it's minor.
> 
> Alex?

I'm planning to send the PR next week when I'm back in the office.  I can drop Leo's patch when I send the PR if that makes things easier.

Alex

> -Daniel
> 
> > Leo
> >
> >
> >>
> >> Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
> >> Cc: Alex Deucher <alexander.deucher@xxxxxxx>
> >> Cc: Harry Wentland <harry.wentland@xxxxxxx>
> >> Cc: Andrey Grodzovsky <andrey.grodzovsky@xxxxxxx>
> >> Cc: Tony Cheng <Tony.Cheng@xxxxxxx>
> >> Cc: "Leo (Sunpeng) Li" <sunpeng.li@xxxxxxx>
> >> Cc: Shirish S <shirish.s@xxxxxxx>
> >> ---
> >>   .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 23 ----------------
> ---
> >>   1 file changed, 23 deletions(-)
> >>
> >> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> >> b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> >> index af6adffba788..333f9904f135 100644
> >> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> >> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> >> @@ -2794,28 +2794,6 @@ static const struct drm_connector_funcs
> >> amdgpu_dm_connector_funcs = {
> >>         .atomic_get_property =
> amdgpu_dm_connector_atomic_get_property
> >>   };
> >>   -static struct drm_encoder *best_encoder(struct drm_connector
> >> *connector)
> >> -{
> >> -       int enc_id = connector->encoder_ids[0];
> >> -       struct drm_mode_object *obj;
> >> -       struct drm_encoder *encoder;
> >> -
> >> -       DRM_DEBUG_DRIVER("Finding the best encoder\n");
> >> -
> >> -       /* pick the encoder ids */
> >> -       if (enc_id) {
> >> -               obj = drm_mode_object_find(connector->dev, NULL, enc_id,
> >> DRM_MODE_OBJECT_ENCODER);
> >> -               if (!obj) {
> >> -                       DRM_ERROR("Couldn't find a matching encoder for
> >> our connector\n");
> >> -                       return NULL;
> >> -               }
> >> -               encoder = obj_to_encoder(obj);
> >> -               return encoder;
> >> -       }
> >> -       DRM_ERROR("No encoder id\n");
> >> -       return NULL;
> >> -}
> >> -
> >>   static int get_modes(struct drm_connector *connector)
> >>   {
> >>         return amdgpu_dm_connector_get_modes(connector);
> >> @@ -2934,7 +2912,6 @@ amdgpu_dm_connector_helper_funcs = {
> >>          */
> >>         .get_modes = get_modes,
> >>         .mode_valid = amdgpu_dm_connector_mode_valid,
> >> -       .best_encoder = best_encoder
> >>   };
> >>     static void dm_crtc_helper_disable(struct drm_crtc *crtc)
> >>
> >
> 
> 
> 
> --
> Daniel Vetter
> Software Engineer, Intel Corporation
> +41 (0) 79 365 57 48 - http://blog.ffwll.ch
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