From patchwork Fri Feb 22 17:17:54 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guennadi Liakhovetski X-Patchwork-Id: 2176671 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 B5BBBDFABD for ; Fri, 22 Feb 2013 17:21:47 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1U8wGr-0007R6-45; Fri, 22 Feb 2013 17:18:53 +0000 Received: from moutng.kundenserver.de ([212.227.17.9]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1U8wGV-0007OA-Uy for linux-arm-kernel@lists.infradead.org; Fri, 22 Feb 2013 17:18:34 +0000 Received: from axis700.grange (dslb-178-001-229-135.pools.arcor-ip.net [178.1.229.135]) by mrelayeu.kundenserver.de (node=mrbap0) with ESMTP (Nemesis) id 0MC7YO-1U06Zf0JO4-008xqM; Fri, 22 Feb 2013 18:18:19 +0100 Received: from 6a.grange (6a.grange [192.168.1.11]) by axis700.grange (Postfix) with ESMTPS id 8CCFB40B9C; Fri, 22 Feb 2013 18:18:18 +0100 (CET) Received: from lyakh by 6a.grange with local (Exim 4.72) (envelope-from ) id 1U8wGI-00072a-9T; Fri, 22 Feb 2013 18:18:18 +0100 From: Guennadi Liakhovetski To: linux-sh@vger.kernel.org Subject: [PATCH 4/4] ARM: shmobile: kzm9g-reference: add CPUFreq support Date: Fri, 22 Feb 2013 18:17:54 +0100 Message-Id: <1361553474-27022-5-git-send-email-g.liakhovetski@gmx.de> X-Mailer: git-send-email 1.7.2.5 In-Reply-To: <1361553474-27022-1-git-send-email-g.liakhovetski@gmx.de> References: <1361553474-27022-1-git-send-email-g.liakhovetski@gmx.de> X-Provags-ID: V02:K0:VF6m6x6uuLOxrCi11m+BmJK8Om6ofrs6Zs1dGIRiI0f /oI7rwwYo+hAkuZHKzxzwdg7kQehyuDazhtTGhmUp6zykB+Nra 40+sbsmyrgRPZT1XuDcDx6v5QMrk+3iY8RLN0kbn4LXe3TFUSS RMF0BpuK56LjI7q5VKzoZ3WE1ucvJkZ731cwtdXNU/gVcdkJQv 0qCmOjJnTnEc9XSXOhmwoIEOeNFE4L9lVXUUUIwDtCUICcHk4y H4CqlG58NN74lEBVweQ/jMQ/O3BmKopfQkzr2ge86tBR/cLJge VJcwEoXC9eSLzJukRCSV3sMbaj6oQyUcF4iX2MRX21R3cXpCYo DdotT5AGcmPcWbWcxzL65xbwsQwjyQeokQio23q1vzcYxT8Fvh pFWnhmiEClg4w== X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130222_121832_283763_61623CEC X-CRM114-Status: GOOD ( 12.57 ) 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 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [212.227.17.9 listed in list.dnswl.org] 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 -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: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linux-arm-kernel-bounces@lists.infradead.org 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 --- 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 d9f6c18..ebe3f49 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 + 806000 1175000 + 403000 1065000 + >; + voltage-tolerance = <1>; /* 1% */ + }; + }; + chosen { bootargs = "console=tty0 console=ttySC4,115200 root=/dev/nfs ip=dhcp ignore_loglevel earlyprintk=sh-sci.4,115200"; }; @@ -118,10 +131,10 @@ 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 927eecc..6f621ac 100644 --- a/arch/arm/mach-shmobile/Kconfig +++ b/arch/arm/mach-shmobile/Kconfig @@ -141,6 +141,8 @@ 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