From patchwork Thu Sep 17 04:57:59 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Petr Cvek X-Patchwork-Id: 7202211 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 B5F5FBEEC1 for ; Thu, 17 Sep 2015 05:00:00 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id EA9F820809 for ; Thu, 17 Sep 2015 04:59:59 +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 24CD5207EF for ; Thu, 17 Sep 2015 04:59:59 +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 1ZcRHE-00047h-7c; Thu, 17 Sep 2015 04:58:32 +0000 Received: from bubo.tul.cz ([2001:718:1c01:16::aa]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZcRHA-0003Ob-Oj for linux-arm-kernel@lists.infradead.org; Thu, 17 Sep 2015 04:58:29 +0000 Received: from [78.80.185.17] (78-80-185-17.tmcz.cz [78.80.185.17]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by bubo.tul.cz (Postfix) with ESMTPSA id 772F91F0007; Thu, 17 Sep 2015 06:57:43 +0200 (CEST) From: Petr Cvek Subject: [PATCH v3 10/26] ARM: pxa: magician: Optimize Samsung LCD refresh to 50Hz To: robert.jarzmik@free.fr, philipp.zabel@gmail.com, daniel@zonque.org, haojian.zhuang@gmail.com, cooloney@gmail.com, rpurdie@rpsys.net, j.anaszewski@samsung.com, linux@arm.linux.org.uk, sre@kernel.org, dbaryshkov@gmail.com, lee.jones@linaro.org, sameo@linux.intel.com, dwmw2@infradead.org, arnd@arndb.de, g.liakhovetski@gmx.de References: Message-ID: <55FA4857.5030904@tul.cz> Date: Thu, 17 Sep 2015 06:57:59 +0200 User-Agent: Mozilla/5.0 (X11; Linux i686; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 MIME-Version: 1.0 In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150916_215829_273718_98C46CB6 X-CRM114-Status: UNSURE ( 9.67 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.6 (--) 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: linux-arm-kernel@lists.infradead.org, linux-leds@vger.kernel.org, linux-pm@vger.kernel.org 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, T_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 Change the default Samsung LCD refresh from an unrealistic 117Hz to 50Hz as no video applications on the HTC Magician can work that fast. The optimalization lowers the RAM latency at least by 3%. Signed-off-by: Petr Cvek --- arch/arm/mach-pxa/magician.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-pxa/magician.c b/arch/arm/mach-pxa/magician.c index 14d1f55..2c487ae 100644 --- a/arch/arm/mach-pxa/magician.c +++ b/arch/arm/mach-pxa/magician.c @@ -317,7 +317,7 @@ static struct pxafb_mode_info toppoly_modes[] = { static struct pxafb_mode_info samsung_modes[] = { { - .pixclock = 96153, + .pixclock = 226469, .bpp = 16, .xres = 240, .yres = 320,