Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753932AbbGUI2k (ORCPT ); Tue, 21 Jul 2015 04:28:40 -0400 Received: from regular1.263xmail.com ([211.150.99.140]:46306 "EHLO regular1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753308AbbGUI2i (ORCPT ); Tue, 21 Jul 2015 04:28:38 -0400 X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 X-ADDR-CHECKED: 0 X-RL-SENDER: mark.yao@rock-chips.com X-FST-TO: dri-devel@lists.freedesktop.org X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: mark.yao@rock-chips.com X-UNIQUE-TAG: <9790aa3f46c17e48508bd6e93030c1a5> X-ATTACHMENT-NUM: 0 X-DNS-TYPE: 0 From: Mark Yao To: dri-devel@lists.freedesktop.org Cc: David Airlie , Heiko Stuebner , Daniel Kurtz , Mark Yao , Philipp Zabel , Daniel Vetter , Rob Clark , tfiga@chromium.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, sandy.huang@rock-chips.com, dkm@rock-chips.com, zwl@rock-chips.com, xw@rock-chips.com Subject: [PATCH v3 5/6] drm/rockchip: vop: restore vop registers when resume Date: Tue, 21 Jul 2015 16:27:27 +0800 Message-Id: <1437467247-13947-1-git-send-email-mark.yao@rock-chips.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1437466807-13689-1-git-send-email-mark.yao@rock-chips.com> References: <1437466807-13689-1-git-send-email-mark.yao@rock-chips.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 970 Lines: 29 The registers will be reset to default values when whole power domain off, so restore registers from regsbak. Signed-off-by: Mark Yao --- drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index e08f318..4dfad065 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -475,6 +475,7 @@ static void vop_enable(struct drm_crtc *crtc) goto err_disable_aclk; } + memcpy(vop->regs, vop->regsbak, vop->len); /* * At here, vop clock & iommu is enable, R/W vop regs would be safe. */ -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/