Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755488AbbG0CJk (ORCPT ); Sun, 26 Jul 2015 22:09:40 -0400 Received: from regular1.263xmail.com ([211.150.99.130]:49765 "EHLO regular1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755267AbbG0CJi (ORCPT ); Sun, 26 Jul 2015 22:09:38 -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: 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 Subject: [PATCH v4 5/6] drm/rockchip: vop: restore vop registers when resume Date: Mon, 27 Jul 2015 10:08:27 +0800 Message-Id: <1437962907-19229-1-git-send-email-mark.yao@rock-chips.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1437962762-19157-1-git-send-email-mark.yao@rock-chips.com> References: <1437962762-19157-1-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: 990 Lines: 31 The registers will be reset to default values when whole power domain off, so restore registers from regsbak. Signed-off-by: Mark Yao --- Changes in v4: None 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 4a2923b..16b7d98 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -496,6 +496,7 @@ 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/