From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752745AbbALJXv (ORCPT ); Mon, 12 Jan 2015 04:23:51 -0500 Received: from mailout2.w1.samsung.com ([210.118.77.12]:32012 "EHLO mailout2.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752704AbbALJX2 (ORCPT ); Mon, 12 Jan 2015 04:23:28 -0500 X-AuditID: cbfec7f4-b7f126d000001e9a-49-54b3928b7975 From: Krzysztof Kozlowski To: Chris Ball , Ulf Hansson , Jaehoon Chung , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org, Kukjin Kim , linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org Cc: Kyungmin Park , Bartlomiej Zolnierkiewicz , Marek Szyprowski , Krzysztof Kozlowski Subject: [RFC 3/3] ARM: dts: Use frequency scaling for MSHC Date: Mon, 12 Jan 2015 10:23:05 +0100 Message-id: <1421054585-9032-4-git-send-email-k.kozlowski@samsung.com> X-Mailer: git-send-email 1.9.1 In-reply-to: <1421054585-9032-1-git-send-email-k.kozlowski@samsung.com> References: <1421054585-9032-1-git-send-email-k.kozlowski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprOLMWRmVeSWpSXmKPExsVy+t/xy7rdkzaHGPx9Km+xccZ6VosJl7cz Wsw/co7V4savNlaL1y8MLfofv2a2ONv0ht1i0+NrrBaXd81hszjyv5/RYsb5fUwWa4/cZbc4 vjbcgddj06pONo871/aweWxeUu9x49VCJo++LasYPT5vkgtgi+KySUnNySxLLdK3S+DKeNfk WbCYrWLO/63MDYxrWbsYOTkkBEwk/izZBGWLSVy4t56ti5GLQ0hgKaPErlUbWSGcPiaJpd8u sYBUsQkYS2xevgSsSkRgC5PEqjVrwaqYBY4yStyYdZcJpEpYwFpid+cpRhCbRUBVYuv8A8wg Nq+Am8TkyTuZIPbJSZw8NhlsN6eAu8TBiT/AbCGgmqu7OpkmMPIuYGRYxSiaWppcUJyUnmuo V5yYW1yal66XnJ+7iRESmF92MC4+ZnWIUYCDUYmHd4LM5hAh1sSy4srcQ4wSHMxKIryuZUAh 3pTEyqrUovz4otKc1OJDjEwcnFINjBterpV5IimWxSVxjv3wNQVFawW+QvG15b/NWvP0hIOW tNydfWPbk2qegxvKDZNfT11s3RbzPDkyr9lx8uH0rkNu67/ev29a8anPUyp/3tfti0UbEkpq E+LZbk7YP2kDX9m9i//tLq2KSJtUtmH1/3+6s9dJ9N0rtT/O99xyCvdp6c+R109cl1ViKc5I NNRiLipOBAD+qv7UKgIAAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Enable frequency scaling on MSHC to reduce energy consumption. In idle this reduced energy consumption by 1.0% (from 27.16 mA to 26.89 mA). Signed-off-by: Krzysztof Kozlowski --- arch/arm/boot/dts/exynos3250-rinato.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/exynos3250-rinato.dts b/arch/arm/boot/dts/exynos3250-rinato.dts index e53f62f216ba..aad09109fdbc 100644 --- a/arch/arm/boot/dts/exynos3250-rinato.dts +++ b/arch/arm/boot/dts/exynos3250-rinato.dts @@ -493,6 +493,7 @@ vmmc-supply = <&ldo12_reg>; clock-frequency = <100000000>; clock-freq-min-max = <400000 100000000>; + frequency-scaling; samsung,dw-mshc-ciu-div = <1>; samsung,dw-mshc-sdr-timing = <0 1>; samsung,dw-mshc-ddr-timing = <1 2>; -- 1.9.1