From patchwork Thu Jun 6 07:28:33 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Horman X-Patchwork-Id: 2677561 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 CAFE3DF23A for ; Thu, 6 Jun 2013 07:28:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757338Ab3FFH2v (ORCPT ); Thu, 6 Jun 2013 03:28:51 -0400 Received: from kirsty.vergenet.net ([202.4.237.240]:59353 "EHLO kirsty.vergenet.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757399Ab3FFH2o (ORCPT ); Thu, 6 Jun 2013 03:28:44 -0400 Received: from ayumi.isobedori.kobe.vergenet.net (p5212-ipbfp1903kobeminato.hyogo.ocn.ne.jp [114.172.132.212]) by kirsty.vergenet.net (Postfix) with ESMTP id 807B625C059; Thu, 6 Jun 2013 17:28:43 +1000 (EST) Received: by ayumi.isobedori.kobe.vergenet.net (Postfix, from userid 7100) id 445AA6CE069; Thu, 6 Jun 2013 16:28:41 +0900 (JST) From: Simon Horman To: Arnd Bergmann , Olof Johansson Cc: linux-sh@vger.kernel.org, arm@kernel.org, linux-arm-kernel@lists.infradead.org, Magnus Damm , Guennadi Liakhovetski , Guennadi Liakhovetski , Simon Horman Subject: [PATCH 20/23] ARM: shmobile: sh73a0: add CPUFreq support Date: Thu, 6 Jun 2013 16:28:33 +0900 Message-Id: <1370503716-31155-21-git-send-email-horms+renesas@verge.net.au> X-Mailer: git-send-email 1.8.2.1 In-Reply-To: <1370503716-31155-1-git-send-email-horms+renesas@verge.net.au> References: <1370503716-31155-1-git-send-email-horms+renesas@verge.net.au> Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org From: Guennadi Liakhovetski This patch enables the use of the generic cpufreq-cpu0 driver on sh73a0. Providing a regulator, a list of OPPs in DT, combined with a virtual cpufreq-cpu0 platform device and a clock, attached to it is everything, the cpufreq-cpu0 driver needs. The first sh73a0 platform, implementing such CPUFreq support is kzm9g-reference. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Simon Horman --- arch/arm/mach-shmobile/Kconfig | 2 ++ arch/arm/mach-shmobile/setup-sh73a0.c | 5 +++++ 2 files changed, 7 insertions(+) diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig index 1a517e2..7cfb9d1 100644 --- a/arch/arm/mach-shmobile/Kconfig +++ b/arch/arm/mach-shmobile/Kconfig @@ -169,6 +169,8 @@ config MACH_KZM9D config MACH_KZM9G bool "KZM-A9-GT board" 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 diff --git a/arch/arm/mach-shmobile/setup-sh73a0.c b/arch/arm/mach-shmobile/setup-sh73a0.c index fdf3894..ed93e01 100644 --- a/arch/arm/mach-shmobile/setup-sh73a0.c +++ b/arch/arm/mach-shmobile/setup-sh73a0.c @@ -1016,6 +1016,8 @@ static const struct of_dev_auxdata sh73a0_auxdata_lookup[] __initconst = { void __init sh73a0_add_standard_devices_dt(void) { + struct platform_device_info devinfo = { .name = "cpufreq-cpu0", .id = -1, }; + /* clocks are setup late during boot in the case of DT */ sh73a0_clock_init(); @@ -1023,6 +1025,9 @@ void __init sh73a0_add_standard_devices_dt(void) ARRAY_SIZE(sh73a0_devices_dt)); of_platform_populate(NULL, of_default_bus_match_table, sh73a0_auxdata_lookup, NULL); + + /* Instantiate cpufreq-cpu0 */ + platform_device_register_full(&devinfo); } static const char *sh73a0_boards_compat_dt[] __initdata = {