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drm/mediatek: dsi: Add atomic {destroy,duplicate}_state, reset callbacks

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[ Upstream commit eeda05b5e92f51d9a09646ecb493f0a1e872a6ef ]

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: 7f6335c6a258 ("drm/mediatek: Modify dsi funcs to atomic operations")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Tested-by: Nícolas 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: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
AngeloGioacchino Del Regno
2022-07-21 19:27:27 +02:00
committed by Greg Kroah-Hartman
parent 39f97714f3
commit 3ca272b231
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/mediatek/mtk_dsi.c
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@@ -791,10 +791,13 @@ static void mtk_dsi_bridge_atomic_post_disable(struct drm_bridge *bridge,
static const struct drm_bridge_funcs mtk_dsi_bridge_funcs = { static const struct drm_bridge_funcs mtk_dsi_bridge_funcs = {
.attach = mtk_dsi_bridge_attach, .attach = mtk_dsi_bridge_attach,
.atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
.atomic_disable = mtk_dsi_bridge_atomic_disable, .atomic_disable = mtk_dsi_bridge_atomic_disable,
.atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
.atomic_enable = mtk_dsi_bridge_atomic_enable, .atomic_enable = mtk_dsi_bridge_atomic_enable,
.atomic_pre_enable = mtk_dsi_bridge_atomic_pre_enable, .atomic_pre_enable = mtk_dsi_bridge_atomic_pre_enable,
.atomic_post_disable = mtk_dsi_bridge_atomic_post_disable, .atomic_post_disable = mtk_dsi_bridge_atomic_post_disable,
.atomic_reset = drm_atomic_helper_bridge_reset,
.mode_set = mtk_dsi_bridge_mode_set, .mode_set = mtk_dsi_bridge_mode_set,
}; };