From patchwork Thu Feb 28 12:22:00 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guennadi Liakhovetski X-Patchwork-Id: 2197431 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork2.kernel.org (Postfix) with ESMTP id 8EDEFDF2A2 for ; Thu, 28 Feb 2013 12:25:53 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1UB2Vf-0004TJ-1h; Thu, 28 Feb 2013 12:22:51 +0000 Received: from moutng.kundenserver.de ([212.227.17.8]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UB2V8-0004Mr-IW for linux-arm-kernel@lists.infradead.org; Thu, 28 Feb 2013 12:22:22 +0000 Received: from axis700.grange (dslb-178-001-229-197.pools.arcor-ip.net [178.1.229.197]) by mrelayeu.kundenserver.de (node=mrbap0) with ESMTP (Nemesis) id 0LdKy1-1UbKgu11JB-00iIgb; Thu, 28 Feb 2013 13:22:05 +0100 Received: from 6a.grange (6a.grange [192.168.1.11]) by axis700.grange (Postfix) with ESMTPS id BD9E740BB5; Thu, 28 Feb 2013 13:22:04 +0100 (CET) Received: from lyakh by 6a.grange with local (Exim 4.72) (envelope-from ) id 1UB2Uu-0002FO-Hs; Thu, 28 Feb 2013 13:22:04 +0100 From: Guennadi Liakhovetski To: linux-sh@vger.kernel.org Subject: [PATCH/RFC v3 3/3] ARM: shmobile: kzm9g-reference: add CPUFreq support Date: Thu, 28 Feb 2013 13:22:00 +0100 Message-Id: <1362054120-8600-4-git-send-email-g.liakhovetski@gmx.de> X-Mailer: git-send-email 1.7.2.5 In-Reply-To: <1362054120-8600-1-git-send-email-g.liakhovetski@gmx.de> References: <1362054120-8600-1-git-send-email-g.liakhovetski@gmx.de> X-Provags-ID: V02:K0:Y3Nuw1vp1RfVkaxWYxfQfbRwiMcrqL3bH8GAv32AV4I 9o9YkSruEeMnnF0LTB/PvTGWxWvyXS67hDHZtZw3j7v3yBJl67 mmDY5AMBHmShrWLaLmtxlTJza3X5Hkh7edtYAjQqyra88HSYHQ 4HPnUn3k2uNjR7f1lgQlh4j5+YTndbmN8hJwG9ys8W9Fydj6ht DKj3EKCVPk7xPQGvGnQeqQq2neJ0ipbCP4Ibep3IPAzdpQmLus EBzMZHrj4hr8OOouHuGh2yD1uHdBgocHUjLM0dGT0TawnuVt1Q IUqcfSTfBROYOp2M6i0dW/LNjbOj7MaiYfsiaqQacn/blwjPli hlHnSMwMDYCUtJI7swKzix/fTN2hJsfnuzp0Czi4yvfcwnOMRg jAqfo1Hg3EiXg== X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130228_072218_874727_64B009BA X-CRM114-Status: GOOD ( 12.53 ) X-Spam-Score: -2.6 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (g.liakhovetski[at]gmx.de) -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record -0.7 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [212.227.17.8 listed in list.dnswl.org] -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: Magnus Damm , cpufreq@vger.kernel.org, "Rafael J. Wysocki" , Simon Horman , Guennadi Liakhovetski , linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org This patch enables the use of the generic cpufreq-cpu0 driver on kzm9g. Providing a regulator and a list of OPPs in DT, combined with a clock, attached to the cpu0 device is everything, the cpufreq-cpu0 driver needs. Signed-off-by: Guennadi Liakhovetski --- v3: no change arch/arm/boot/dts/sh73a0-kzm9g-reference.dts | 19 ++++++++++++++++--- arch/arm/mach-shmobile/Kconfig | 2 ++ 2 files changed, 18 insertions(+), 3 deletions(-) diff --git a/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts b/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts index 363f1ab..c964e20 100644 --- a/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts +++ b/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts @@ -18,6 +18,19 @@ model = "KZM-A9-GT"; compatible = "renesas,kzm9g-reference", "renesas,sh73a0"; + cpus { + cpu@0 { + cpu0-supply = <&vdd_dvfs>; + operating-points = < + /* kHz uV */ + 1196000 1315000 + 598000 1175000 + 398667 1065000 + >; + voltage-tolerance = <1>; /* 1% */ + }; + }; + chosen { bootargs = "console=tty0 console=ttySC4,115200 root=/dev/nfs ip=dhcp ignore_loglevel earlyprintk=sh-sci.4,115200"; }; @@ -113,10 +126,10 @@ reg = <0x40>; regulators { - sd1 { + vdd_dvfs: sd1 { regulator-name = "1.315V CPU"; - regulator-min-microvolt = <1315000>; - regulator-max-microvolt = <1335000>; + regulator-min-microvolt = <1050000>; + regulator-max-microvolt = <1350000>; regulator-always-on; regulator-boot-on; }; diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig index eb3a7ff..8a0420b 100644 --- a/arch/arm/mach-shmobile/Kconfig +++ b/arch/arm/mach-shmobile/Kconfig @@ -134,6 +134,8 @@ config MACH_KZM9G config MACH_KZM9G_REFERENCE bool "KZM-A9-GT board - Reference Device Tree Implementation" depends on ARCH_SH73A0 + select ARCH_HAS_CPUFREQ + select ARCH_HAS_OPP select ARCH_REQUIRE_GPIOLIB select REGULATOR_FIXED_VOLTAGE if REGULATOR select SND_SOC_AK4642 if SND_SIMPLE_CARD