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

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On Thu, Sep 6, 2018 at 6:33 PM, Deucher, Alexander
<Alexander.Deucher@xxxxxxx> wrote:
>> -----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.

I'm happy to rebase, just go ahead. I've added a bunch more patches to
my helper cleanup series anyway, so will take a bit longer to get all
landed.
-Daniel

>
> 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



-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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