Commit eeda05b5 authored by AngeloGioacchino Del Regno's avatar AngeloGioacchino Del Regno Committed by Chun-Kuang Hu
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drm/mediatek: dsi: Add atomic {destroy,duplicate}_state, reset callbacks 



Add callbacks for atomic_destroy_state, atomic_duplicate_state and
atomic_reset to restore functionality of the DSI driver: this solves
vblank timeouts when another bridge is present in the chain.

Tested bridge chain: DSI <=> ANX7625 => aux-bus panel

Fixes: 7f6335c6 ("drm/mediatek: Modify dsi funcs to atomic operations")
Signed-off-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: default avatarChen-Yu Tsai <wenst@chromium.org>
Reviewed-by: default avatarNícolas F. R. A. Prado <nfraprado@collabora.com>
Tested-by: default avatarNícolas F. R. A. Prado <nfraprado@collabora.com>
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20220721172727.14624-1-angelogioacchino.delregno@collabora.com/


Signed-off-by: default avatarChun-Kuang Hu <chunkuang.hu@kernel.org>
parent 568035b0

drivers/gpu/drm/mediatek/mtk_dsi.c

+3 −0
Original line number Diff line number Diff line
@@ -808,10 +808,13 @@ static void mtk_dsi_bridge_atomic_post_disable(struct drm_bridge *bridge, 


static const struct drm_bridge_funcs mtk_dsi_bridge_funcs = {

	.attach = mtk_dsi_bridge_attach,

	.atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,

	.atomic_disable = mtk_dsi_bridge_atomic_disable,

	.atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,

	.atomic_enable = mtk_dsi_bridge_atomic_enable,

	.atomic_pre_enable = mtk_dsi_bridge_atomic_pre_enable,

	.atomic_post_disable = mtk_dsi_bridge_atomic_post_disable,

	.atomic_reset = drm_atomic_helper_bridge_reset,

	.mode_set = mtk_dsi_bridge_mode_set,

};