From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965918AbXDIVXF (ORCPT ); Mon, 9 Apr 2007 17:23:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965913AbXDIVXB (ORCPT ); Mon, 9 Apr 2007 17:23:01 -0400 Received: from nlpi015.sbcis.sbc.com ([207.115.36.44]:26317 "EHLO nlpi015.sbcis.sbc.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965661AbXDIVWp (ORCPT ); Mon, 9 Apr 2007 17:22:45 -0400 X-ORBL: [67.117.73.34] From: Tony Lindgren To: linux-kernel@vger.kernel.org Cc: Juha Yrjola , Tony Lindgren Subject: [PATCH 2/18] ARM: OMAP: Add function to print clock usecounts Date: Mon, 9 Apr 2007 17:22:07 -0400 Message-Id: <11761537491968-git-send-email-tony@atomide.com> X-Mailer: git-send-email 1.4.4.2 In-Reply-To: <117615374683-git-send-email-tony@atomide.com> References: <11761537431635-git-send-email-tony@atomide.com> <117615374683-git-send-email-tony@atomide.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org From: Juha Yrjola Useful for debugging power management code. Signed-off-by: Juha Yrjola Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/clock.c | 35 +++++++++++++++++++++++++++++++++++ 1 files changed, 35 insertions(+), 0 deletions(-) --- a/arch/arm/plat-omap/clock.c +++ b/arch/arm/plat-omap/clock.c @@ -33,6 +33,41 @@ static DEFINE_SPINLOCK(clockfw_lock); static struct clk_functions *arch_clock; +#ifdef CONFIG_PM_DEBUG + +static void print_parents(struct clk *clk) +{ + struct clk *p; + int printed = 0; + + list_for_each_entry(p, &clocks, node) { + if (p->parent == clk && p->usecount) { + if (!clk->usecount && !printed) { + printk("MISMATCH: %s\n", clk->name); + printed = 1; + } + printk("\t%-15s\n", p->name); + } + } +} + +void clk_print_usecounts(void) +{ + unsigned long flags; + struct clk *p; + + spin_lock_irqsave(&clockfw_lock, flags); + list_for_each_entry(p, &clocks, node) { + if (p->usecount) + printk("%-15s: %d\n", p->name, p->usecount); + print_parents(p); + + } + spin_unlock_irqrestore(&clockfw_lock, flags); +} + +#endif + /*------------------------------------------------------------------------- * Standard clock functions defined in include/linux/clk.h *-------------------------------------------------------------------------*/ -- 1.4.4.2