Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759854AbYCZPxz (ORCPT ); Wed, 26 Mar 2008 11:53:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756747AbYCZPxg (ORCPT ); Wed, 26 Mar 2008 11:53:36 -0400 Received: from fk-out-0910.google.com ([209.85.128.191]:55328 "EHLO fk-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759391AbYCZPxf (ORCPT ); Wed, 26 Mar 2008 11:53:35 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=date:from:to:cc:subject:message-id:references:mime-version:content-type:content-disposition:in-reply-to:user-agent; b=Zlvd5K9CEt/eCLu2jEgPF/oK2BnfTyFDt5jYZRsClZKqwpoUo4wRYJEriWmJhMd+vtwA+4JhqKX3dO8zZWAL5Y8KahaWjkigIEJIH9Go3WDuyuzMWBEhuS73c0hqwH8B9ix3a9w/vupYkMPkZSvwW2FqKjRpJh5+0VjJXtGbIkw= Date: Wed, 26 Mar 2008 18:53:28 +0300 From: Dmitry Baryshkov To: linux-kernel@vger.kernel.org Cc: akpm@linux-foundation.org, hskinnemoen@atmel.com, domen.puncer@telargo.com, lethal@linux-sh.org, tony@atomide.com, rmk+kernel@arm.linux.org.uk, paul@pwsan.com Subject: [PATCH 3/3] Clocklib: support sa1100 sub-arch. Message-ID: <20080326155328.GA15427@doriath.ww600.siemens.net> References: <20080326154913.GA15326@doriath.ww600.siemens.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080326154913.GA15326@doriath.ww600.siemens.net> User-Agent: Mutt/1.5.17+20080114 (2008-01-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3616 Lines: 162 Signed-off-by: Dmitry Baryshkov --- arch/arm/Kconfig | 1 + arch/arm/mach-sa1100/clock.c | 98 +++--------------------------------------- 2 files changed, 7 insertions(+), 92 deletions(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 4039a13..6d78a27 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -426,6 +426,7 @@ config ARCH_SA1100 select GENERIC_GPIO select GENERIC_TIME select HAVE_IDE + select HAVE_CLOCK_LIB help Support for StrongARM 11x0 based boards. diff --git a/arch/arm/mach-sa1100/clock.c b/arch/arm/mach-sa1100/clock.c index fc97fe5..e5c4e9f 100644 --- a/arch/arm/mach-sa1100/clock.c +++ b/arch/arm/mach-sa1100/clock.c @@ -8,83 +8,13 @@ #include #include #include +#include #include #include #include -/* - * Very simple clock implementation - we only have one clock to - * deal with at the moment, so we only match using the "name". - */ -struct clk { - struct list_head node; - unsigned long rate; - const char *name; - unsigned int enabled; - void (*enable)(void); - void (*disable)(void); -}; - -static LIST_HEAD(clocks); -static DEFINE_MUTEX(clocks_mutex); -static DEFINE_SPINLOCK(clocks_lock); - -struct clk *clk_get(struct device *dev, const char *id) -{ - struct clk *p, *clk = ERR_PTR(-ENOENT); - - mutex_lock(&clocks_mutex); - list_for_each_entry(p, &clocks, node) { - if (strcmp(id, p->name) == 0) { - clk = p; - break; - } - } - mutex_unlock(&clocks_mutex); - - return clk; -} -EXPORT_SYMBOL(clk_get); - -void clk_put(struct clk *clk) -{ -} -EXPORT_SYMBOL(clk_put); - -int clk_enable(struct clk *clk) -{ - unsigned long flags; - - spin_lock_irqsave(&clocks_lock, flags); - if (clk->enabled++ == 0) - clk->enable(); - spin_unlock_irqrestore(&clocks_lock, flags); - return 0; -} -EXPORT_SYMBOL(clk_enable); - -void clk_disable(struct clk *clk) -{ - unsigned long flags; - - WARN_ON(clk->enabled == 0); - - spin_lock_irqsave(&clocks_lock, flags); - if (--clk->enabled == 0) - clk->disable(); - spin_unlock_irqrestore(&clocks_lock, flags); -} -EXPORT_SYMBOL(clk_disable); - -unsigned long clk_get_rate(struct clk *clk) -{ - return clk->rate; -} -EXPORT_SYMBOL(clk_get_rate); - - -static void clk_gpio27_enable(void) +static int clk_gpio27_enable(struct clk *clk) { /* * First, set up the 3.6864MHz clock on GPIO 27 for the SA-1111: @@ -93,9 +23,11 @@ static void clk_gpio27_enable(void) GAFR |= GPIO_32_768kHz; GPDR |= GPIO_32_768kHz; TUCR = TUCR_3_6864MHz; + + return 0; } -static void clk_gpio27_disable(void) +static void clk_gpio27_disable(struct clk *clk) { TUCR = 0; GPDR &= ~GPIO_32_768kHz; @@ -109,26 +41,8 @@ static struct clk clk_gpio27 = { .disable = clk_gpio27_disable, }; -int clk_register(struct clk *clk) -{ - mutex_lock(&clocks_mutex); - list_add(&clk->node, &clocks); - mutex_unlock(&clocks_mutex); - return 0; -} -EXPORT_SYMBOL(clk_register); - -void clk_unregister(struct clk *clk) -{ - mutex_lock(&clocks_mutex); - list_del(&clk->node); - mutex_unlock(&clocks_mutex); -} -EXPORT_SYMBOL(clk_unregister); - static int __init clk_init(void) { - clk_register(&clk_gpio27); - return 0; + return clk_register(&clk_gpio27); } arch_initcall(clk_init); -- 1.5.4.4 -- With best wishes Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/