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drm/mtk: Use __drm_atomic_helper_crtc_reset 

Now also comes with the added benefit of doing a drm_crtc_vblank_off(),
which means vblank state isn't ill-defined and fail-y at driver load
before the first modeset on each crtc.

Acked-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mediatek@lists.infradead.org
Link: https://patchwork.freedesktop.org/patch/msgid/20200612160056.2082681-4-daniel.vetter@ffwll.ch
This commit is contained in:
Daniel Vetter 2020-06-12 18:00:52 +02:00
parent 8ed5dcf966
commit 2d267b8189
1 changed files with 6 additions and 10 deletions
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16
drivers/gpu/drm/mediatek/mtk_drm_crtc.c
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@ -113,19 +113,15 @@ static void mtk_drm_crtc_reset(struct drm_crtc *crtc)
{
struct mtk_crtc_state *state;
if (crtc->state) {
if (crtc->state)
__drm_atomic_helper_crtc_destroy_state(crtc->state);
state = to_mtk_crtc_state(crtc->state);
memset(state, 0, sizeof(*state));
} else {
state = kzalloc(sizeof(*state), GFP_KERNEL);
if (!state)
return;
crtc->state = &state->base;
}
kfree(to_mtk_crtc_state(crtc->state));
crtc->state = NULL;
state->base.crtc = crtc;
state = kzalloc(sizeof(*state), GFP_KERNEL);
if (state)
__drm_atomic_helper_crtc_reset(crtc, &state->base);
}
static struct drm_crtc_state *mtk_drm_crtc_duplicate_state(struct drm_crtc *crtc)