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Date: Wed, 6 Apr 2016 12:14:45 +0200 From: Tomeu Vizoso <tomeu.vizoso@...labora.com> To: linux-kernel@...r.kernel.org Cc: Tomeu Vizoso <tomeu.vizoso@...labora.com>, Mark Yao <mark.yao@...k-chips.com>, David Airlie <airlied@...ux.ie>, Heiko Stuebner <heiko@...ech.de>, dri-devel@...ts.freedesktop.org, linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org Subject: [PATCH 1/2] drm/rockchip: vop: Do check if an update is pending during disable When a plane is being disabled but it's still enabled, do check if the previous update has been completed by reading yrgb_mst back. Otherwise, pending pageflips would remain pending after a CRTC is disabled. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@...labora.com> --- drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index a9b1e8b5ac85..f46b1fd1887b 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -1064,8 +1064,9 @@ static bool vop_win_pending_is_complete(struct vop_win *vop_win) struct vop_plane_state *state = to_vop_plane_state(plane->state); dma_addr_t yrgb_mst; - if (!state->enable) - return VOP_WIN_GET(vop_win->vop, vop_win->data, enable) == 0; + if (!state->enable && + VOP_WIN_GET(vop_win->vop, vop_win->data, enable) == 0) + return true; yrgb_mst = VOP_WIN_GET_YRGBADDR(vop_win->vop, vop_win->data); -- 2.5.5
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