From patchwork Wed Nov 20 03:18:02 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Horman X-Patchwork-Id: 3209331 Return-Path: X-Original-To: patchwork-ltsi-dev@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 0CA8D9F3A0 for ; Wed, 20 Nov 2013 05:30:48 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 43482206CD for ; Wed, 20 Nov 2013 05:30:47 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) by mail.kernel.org (Postfix) with ESMTP id 59BDA206C7 for ; Wed, 20 Nov 2013 05:30:46 +0000 (UTC) Received: from mail.linux-foundation.org (localhost [IPv6:::1]) by mail.linuxfoundation.org (Postfix) with ESMTP id 82C56116E; Wed, 20 Nov 2013 05:29:05 +0000 (UTC) X-Original-To: ltsi-dev@lists.linuxfoundation.org Delivered-To: ltsi-dev@mail.linuxfoundation.org Received: from smtp2.linuxfoundation.org (smtp2.linux-foundation.org [172.17.192.36]) by mail.linuxfoundation.org (Postfix) with ESMTP id 3D6FAFFF for ; Wed, 20 Nov 2013 05:28:29 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from kirsty.vergenet.net (kirsty.vergenet.net [202.4.237.240]) by smtp2.linuxfoundation.org (Postfix) with ESMTP id 471C81DD5A for ; Wed, 20 Nov 2013 05:28:27 +0000 (UTC) Received: from ayumi.isobedori.kobe.vergenet.net (p2020-ipbfp1604kobeminato.hyogo.ocn.ne.jp [114.154.85.20]) by kirsty.vergenet.net (Postfix) with ESMTP id 878A32672DB; Wed, 20 Nov 2013 14:22:57 +1100 (EST) Received: by ayumi.isobedori.kobe.vergenet.net (Postfix, from userid 7100) id 2BBCD6CE6CE; Wed, 20 Nov 2013 12:22:56 +0900 (JST) From: Simon Horman To: ltsi-dev@lists.linuxfoundation.org Date: Wed, 20 Nov 2013 12:18:02 +0900 Message-Id: <1384917713-15962-365-git-send-email-horms+renesas@verge.net.au> X-Mailer: git-send-email 1.8.4 In-Reply-To: <1384917713-15962-1-git-send-email-horms+renesas@verge.net.au> References: <1384917713-15962-1-git-send-email-horms+renesas@verge.net.au> X-Spam-Status: No, score=-2.4 required=5.0 tests=BAYES_00,RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org Cc: Magnus Damm Subject: [LTSI-dev] [PATCH ltsi-3.10 364/595] ARM: shmobile: ape6evm-reference: add CPUFreq support X-BeenThere: ltsi-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: "A list to discuss patches, development, and other things related to the LTSI project" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: ltsi-dev-bounces@lists.linuxfoundation.org Errors-To: ltsi-dev-bounces@lists.linuxfoundation.org X-Virus-Scanned: ClamAV using ClamSMTP From: Guennadi Liakhovetski Add CPUFreq support to ape6evm-reference, using a max8973 regulator, that is supplying V_DVFS for the 4 CA15 cores on r8a73a4. Signed-off-by: Guennadi Liakhovetski Acked-by: Magnus Damm Signed-off-by: Simon Horman (cherry picked from commit b88cf6f732946874aaf3e0528459e0f0271dfcec) Signed-off-by: Simon Horman --- arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts | 22 ++++++++++++++++++++++ arch/arm/mach-shmobile/board-ape6evm-reference.c | 2 ++ 2 files changed, 24 insertions(+) diff --git a/arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts b/arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts index 3251f05..6f4506e 100644 --- a/arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts +++ b/arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts @@ -31,3 +31,25 @@ ranges = <0 0 0 0x80000000>; }; }; + +&i2c5 { + vdd_dvfs: max8973@1b { + compatible = "maxim,max8973"; + reg = <0x1b>; + + regulator-min-microvolt = <935000>; + regulator-max-microvolt = <1200000>; + regulator-boot-on; + regulator-always-on; + }; +}; + +&cpu0 { + cpu0-supply = <&vdd_dvfs>; + operating-points = < + /* kHz uV */ + 1950000 1115000 + 1462500 995000 + >; + voltage-tolerance = <1>; /* 1% */ +}; diff --git a/arch/arm/mach-shmobile/board-ape6evm-reference.c b/arch/arm/mach-shmobile/board-ape6evm-reference.c index c828874..46b41de 100644 --- a/arch/arm/mach-shmobile/board-ape6evm-reference.c +++ b/arch/arm/mach-shmobile/board-ape6evm-reference.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include @@ -56,6 +57,7 @@ static void __init ape6evm_add_standard_devices(void) r8a73a4_pinmux_init(); r8a73a4_add_dt_devices(); of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); + platform_device_register_simple("cpufreq-cpu0", -1, NULL, 0); } static const char *ape6evm_boards_compat_dt[] __initdata = {