From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756070AbbCaRWh (ORCPT ); Tue, 31 Mar 2015 13:22:37 -0400 Received: from mga02.intel.com ([134.134.136.20]:46703 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754109AbbCaRWc (ORCPT ); Tue, 31 Mar 2015 13:22:32 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.11,502,1422950400"; d="scan'208";a="706846413" From: Andy Shevchenko To: linux-kernel@vger.kernel.org, Sascha Hauer , Peter De Schrijver , Tero Kristo , Stephen Boyd , Russell King , Dinh Nguyen Cc: Andy Shevchenko Subject: [PATCH v3 1/7] clk: introduce clk_div_mask() helper Date: Tue, 31 Mar 2015 20:22:21 +0300 Message-Id: <1427822547-163289-2-git-send-email-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1427822547-163289-1-git-send-email-andriy.shevchenko@linux.intel.com> References: <1427822547-163289-1-git-send-email-andriy.shevchenko@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The patch introduces a helper that gives a divider mask based on register field width. The sequential patches will replace custom div_mask() macro in the corresponding clock provider modules. Signed-off-by: Andy Shevchenko --- include/linux/clk-provider.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 5591ea7..20b0b67 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -353,6 +353,11 @@ struct clk_divider { spinlock_t *lock; }; +static inline unsigned long clk_div_mask(u8 width) +{ + return (1 << width) - 1; +} + #define CLK_DIVIDER_ONE_BASED BIT(0) #define CLK_DIVIDER_POWER_OF_TWO BIT(1) #define CLK_DIVIDER_ALLOW_ZERO BIT(2) -- 2.1.4