From patchwork Sat Aug 8 16:04:00 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Russell King X-Patchwork-Id: 6975191 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 1DA26C05AC for ; Sat, 8 Aug 2015 16:11:13 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 4721820544 for ; Sat, 8 Aug 2015 16:11:12 +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 1C48B205F7 for ; Sat, 8 Aug 2015 16:11:11 +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 1ZO6gP-0001Lc-UV; Sat, 08 Aug 2015 16:09:17 +0000 Received: from merlin.infradead.org ([2001:4978:20e::2]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZO6ec-00089l-0J for linux-arm-kernel@bombadil.infradead.org; Sat, 08 Aug 2015 16:07:26 +0000 Received: from pandora.arm.linux.org.uk ([2001:4d48:ad52:3201:214:fdff:fe10:1be6]) by merlin.infradead.org with esmtps (Exim 4.85 #2 (Red Hat Linux)) id 1ZO6eY-0003Nv-5g for linux-arm-kernel@lists.infradead.org; Sat, 08 Aug 2015 16:07:24 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=arm.linux.org.uk; s=pandora-2014; h=Date:Sender:Message-Id:Content-Type:Content-Transfer-Encoding:MIME-Version:Subject:Cc:To:From:References:In-Reply-To; bh=OpuIfKY3aRtPuscyGtrUGL5pIbstg7nCjkJ7d1jfJNs=; b=nORfap/DJC8EPnX1hRLlamXw/Ojso4LrndHbG6V+ZRf4Rec7equO6ltPSh79KJXOrO4XVrehoOZhmKeuLN34IhKt3Uu0Zn44ubpNJ7riqBa2QhY4zsL/nRbWIeGN4xv6OApKKXWde4Pg1nYB3fVJnWaVJtMdRTrzGSgRu3jwN5Y=; Received: from e0022681537dd.dyn.arm.linux.org.uk ([fd8f:7570:feb6:1:222:68ff:fe15:37dd]:35612 helo=rmk-PC.arm.linux.org.uk) by pandora.arm.linux.org.uk with esmtpsa (TLSv1:AES128-SHA:128) (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1ZO6bV-0006Lz-51; Sat, 08 Aug 2015 17:04:13 +0100 Received: from rmk by rmk-PC.arm.linux.org.uk with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1ZO6bI-0002rG-PI; Sat, 08 Aug 2015 17:04:00 +0100 In-Reply-To: <20150808160251.GM7557@n2100.arm.linux.org.uk> References: <20150808160251.GM7557@n2100.arm.linux.org.uk> From: Russell King To: linux-rockchip@lists.infradead.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 08/12] drm: bridge/dw_hdmi: avoid enabling interface in mode_set MIME-Version: 1.0 Content-Disposition: inline Message-Id: Date: Sat, 08 Aug 2015 17:04:00 +0100 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150808_120722_658815_1B071824 X-CRM114-Status: GOOD ( 10.06 ) X-Spam-Score: -2.4 (--) 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: Fabio Estevam , David Airlie , Sascha Hauer , Philipp Zabel , Yakir Yang , Andy Yan , Jon Nettleton Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.5 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,RP_MATCHES_RCVD,T_DKIM_INVALID,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 On a mode set, DRM makes the following sequence of calls: * for_each_encoder * bridge mode_fixup * encoder mode_fixup * crtc mode_fixup * for_each_encoder * bridge disable * encoder prepare * bridge post_disable * disable unused encoders * crtc prepare * crtc mode_set * for_each_encoder * encoder mode_set * bridge mode_set * crtc commit * for_each_encoder * bridge pre_enable * encoder commit * bridge enable dw_hdmi enables the HDMI output in both the bridge mode_set() and also the bridge enable() step. This is duplicated work - we can avoid the setup in mode_set() and just do it in the enable() stage. This simplifies the code a little. Signed-off-by: Russell King --- drivers/gpu/drm/bridge/dw_hdmi.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/gpu/drm/bridge/dw_hdmi.c b/drivers/gpu/drm/bridge/dw_hdmi.c index 578d7362cd65..fbac8386552b 100644 --- a/drivers/gpu/drm/bridge/dw_hdmi.c +++ b/drivers/gpu/drm/bridge/dw_hdmi.c @@ -1389,8 +1389,6 @@ static void dw_hdmi_bridge_mode_set(struct drm_bridge *bridge, { struct dw_hdmi *hdmi = bridge->driver_private; - dw_hdmi_setup(hdmi, mode); - /* Store the display mode for plugin/DKMS poweron events */ memcpy(&hdmi->previous_mode, mode, sizeof(hdmi->previous_mode)); }