From mboxrd@z Thu Jan 1 00:00:00 1970 From: Petr Cvek Subject: [PATCH v3 10/26] ARM: pxa: magician: Optimize Samsung LCD refresh to 50Hz Date: Thu, 17 Sep 2015 06:57:59 +0200 Message-ID: <55FA4857.5030904@tul.cz> References: Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-2 Content-Transfer-Encoding: 7bit Return-path: Received: from bubo.tul.cz ([147.230.16.1]:37103 "EHLO bubo.tul.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751857AbbIQE6G (ORCPT ); Thu, 17 Sep 2015 00:58:06 -0400 In-Reply-To: Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org 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 Cc: linux-leds@vger.kernel.org, linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org 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, -- 1.7.12.1