linux-kernel - Re: [git pull] drm next pull for 5.10-rc1

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Date:   Wed, 4 Nov 2020 01:20:13 +0300
From:   "Kirill A. Shutemov" <kirill@...temov.name>
To:     Dave Airlie <airlied@...il.com>, Lyude Paul <lyude@...hat.com>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Ben Skeggs <bskeggs@...hat.com>
Subject: Re: [git pull] drm next pull for 5.10-rc1

On Thu, Oct 15, 2020 at 11:33:08AM +1000, Dave Airlie wrote:
>       drm/nouveau/kms: Search for encoders' connectors properly

This commit (09838c4efe9a) broke boot for me. These two hunks in
particular:

@ -2066,7 +2120,7 @@ nv50_disp_atomic_commit_tail(struct drm_atomic_state *state)
                          outp->clr.mask, outp->set.mask);

                if (outp->clr.mask) {
-                       help->disable(encoder);
+                       help->atomic_disable(encoder, state);
                        interlock[NV50_DISP_INTERLOCK_CORE] |= 1;
                        if (outp->flush_disable) {
                                nv50_disp_atomic_commit_wndw(state, interlock);
@@ -2105,7 +2159,7 @@ nv50_disp_atomic_commit_tail(struct drm_atomic_state *state)
                          outp->set.mask, outp->clr.mask);

                if (outp->set.mask) {
-                       help->enable(encoder);
+                       help->atomic_enable(encoder, state);
                        interlock[NV50_DISP_INTERLOCK_CORE] = 1;
                }


I hacked up patch to use help->disable/help->enable if atomic_ versions
are NULL. It worked.

In my setup I stepped onto nv50_msto_help->atomic_enable == NULL. But
there are two more drm_encoder_helper_funcs in dispnv50/disp.c that don't
have atomic_enable/disable set: nv50_dac_help, nv50_pior_help.

-- 
 Kirill A. Shutemov