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: 2176581 Return-Path: X-Original-To: patchwork-linux-sh@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id 84DC9DFB7B for ; Fri, 22 Feb 2013 17:18:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758655Ab3BVRSb (ORCPT ); Fri, 22 Feb 2013 12:18:31 -0500 Received: from moutng.kundenserver.de ([212.227.17.9]:63600 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757899Ab3BVRS2 (ORCPT ); Fri, 22 Feb 2013 12:18:28 -0500 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 Cc: Magnus Damm , Simon Horman , linux-arm-kernel@lists.infradead.org, "Rafael J. Wysocki" , cpufreq@vger.kernel.org, Guennadi Liakhovetski 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== Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.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