From patchwork Fri Jan 22 01:56:31 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yakir Yang X-Patchwork-Id: 8087361 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id C5EC6BEEE5 for ; Fri, 22 Jan 2016 02:04:37 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 0DB0A20456 for ; Fri, 22 Jan 2016 02:04:37 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 26AA220328 for ; Fri, 22 Jan 2016 02:04:36 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1aMR43-0004cQ-6F; Fri, 22 Jan 2016 02:03:03 +0000 Received: from lucky1.263xmail.com ([211.157.147.133]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1aMQyB-0006oj-1f; Fri, 22 Jan 2016 01:57:02 +0000 Received: from ykk?rock-chips.com (unknown [192.168.167.87]) by lucky1.263xmail.com (Postfix) with SMTP id A16434E5C8; Fri, 22 Jan 2016 09:56:36 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 1 X-MAIL-DELIVERY: 0 X-KSVirus-check: 0 X-ABS-CHECKED: 4 X-ADDR-CHECKED: 0 Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.263.net (Postfix) with ESMTP id 4397444EA; Fri, 22 Jan 2016 09:56:29 +0800 (CST) X-RL-SENDER: ykk@rock-chips.com X-FST-TO: inki.dae@samsung.com X-SENDER-IP: 103.29.142.67 X-LOGIN-NAME: ykk@rock-chips.com X-UNIQUE-TAG: <74716bde78787d34f6aafd739e6128cc> X-ATTACHMENT-NUM: 0 X-SENDER: ykk@rock-chips.com X-DNS-TYPE: 0 Received: from localhost.localdomain (unknown [103.29.142.67]) by smtp.263.net (Postfix) whith ESMTP id 24790TTG1X9; Fri, 22 Jan 2016 09:56:36 +0800 (CST) From: Yakir Yang To: Inki Dae , Kyungmin Park , Jingoo Han , Thierry Reding , Krzysztof Kozlowski , Rob Herring , Heiko Stuebner , Mark Yao Subject: [PATCH v13 16/17] drm: bridge: analogix/dp: add panel prepare/unprepare in suspend/resume time Date: Fri, 22 Jan 2016 09:56:31 +0800 Message-Id: <1453427791-24698-1-git-send-email-ykk@rock-chips.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1453427614-23053-1-git-send-email-ykk@rock-chips.com> References: <1453427614-23053-1-git-send-email-ykk@rock-chips.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160121_175659_885019_DA606CC8 X-CRM114-Status: UNSURE ( 6.21 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -1.9 (-) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, linux-samsung-soc@vger.kernel.org, Russell King , linux-rockchip@lists.infradead.org, emil.l.velikov@gmail.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Kishon Vijay Abraham I , javier@osg.samsung.com, Yakir Yang , Andy Yan , Gustavo Padovan , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Turn off the panel power in suspend time would help to reduce power waste. Signed-off-by: Yakir Yang --- Changes in v13: None Changes in v12: None Changes in v11: None Changes in v10: None Changes in v9: None Changes in v8: None Changes in v7: None Changes in v6: None Changes in v5: None Changes in v4: None Changes in v3: None Changes in v2: None drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c index bc59e8d..5292b28 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c @@ -1400,6 +1400,12 @@ int analogix_dp_suspend(struct device *dev) struct analogix_dp_device *dp = dev_get_drvdata(dev); clk_disable_unprepare(dp->clock); + + if (dp->plat_data->panel) { + if (drm_panel_unprepare(dp->plat_data->panel)) + DRM_ERROR("failed to turnoff the panel\n"); + } + return 0; } EXPORT_SYMBOL_GPL(analogix_dp_suspend); @@ -1415,6 +1421,13 @@ int analogix_dp_resume(struct device *dev) return ret; } + if (dp->plat_data->panel) { + if (drm_panel_prepare(dp->plat_data->panel)) { + DRM_ERROR("failed to setup the panel\n"); + return -EBUSY; + } + } + return 0; } EXPORT_SYMBOL_GPL(analogix_dp_resume);