From: AngeloGioacchino Del Regno Date: Thu, 21 Jul 2022 17:27:27 +0000 (+0200) Subject: drm/mediatek: dsi: Add atomic {destroy,duplicate}_state, reset callbacks X-Git-Tag: v5.15.73~194 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e352fea1d0fccd9a34409df6ed5deec823594405;p=platform%2Fkernel%2Flinux-rpi.git drm/mediatek: dsi: Add atomic {destroy,duplicate}_state, reset callbacks [ 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 Tested-by: Chen-Yu Tsai Reviewed-by: Nícolas F. R. A. Prado Tested-by: Nícolas F. R. A. Prado Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20220721172727.14624-1-angelogioacchino.delregno@collabora.com/ Signed-off-by: Chun-Kuang Hu Signed-off-by: Sasha Levin --- diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c index ac14e59..fc437d4 100644 --- a/drivers/gpu/drm/mediatek/mtk_dsi.c +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c @@ -796,10 +796,13 @@ 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, };