From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751870Ab3BPGg1 (ORCPT ); Sat, 16 Feb 2013 01:36:27 -0500 Received: from mail-da0-f53.google.com ([209.85.210.53]:43497 "EHLO mail-da0-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750828Ab3BPGg0 (ORCPT ); Sat, 16 Feb 2013 01:36:26 -0500 Message-ID: <1360996576.6116.1.camel@phoenix> Subject: [RFT][PATCH 1/3] regulator: core: Add enable_is_inverted flag to indicate set enable_mask bits to disable From: Axel Lin To: Mark Brown Cc: Haojian Zhuang , "Jett.Zhou" , Liam Girdwood , linux-kernel@vger.kernel.org Date: Sat, 16 Feb 2013 14:36:16 +0800 Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3-0ubuntu6 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add enable_is_inverted flag to indicate set enable_mask bits to disable when using regulator_enable_regmap and friends APIs. Signed-off-by: Axel Lin --- drivers/regulator/core.c | 24 ++++++++++++++++++++---- include/linux/regulator/driver.h | 3 +++ 2 files changed, 23 insertions(+), 4 deletions(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index da9782b..142205b 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1794,7 +1794,10 @@ int regulator_is_enabled_regmap(struct regulator_dev *rdev) if (ret != 0) return ret; - return (val & rdev->desc->enable_mask) != 0; + if (rdev->desc->enable_is_inverted) + return (val & rdev->desc->enable_mask) == 0; + else + return (val & rdev->desc->enable_mask) != 0; } EXPORT_SYMBOL_GPL(regulator_is_enabled_regmap); @@ -1809,9 +1812,15 @@ EXPORT_SYMBOL_GPL(regulator_is_enabled_regmap); */ int regulator_enable_regmap(struct regulator_dev *rdev) { + unsigned int val; + + if (rdev->desc->enable_is_inverted) + val = 0; + else + val = rdev->desc->enable_mask; + return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, - rdev->desc->enable_mask, - rdev->desc->enable_mask); + rdev->desc->enable_mask, val); } EXPORT_SYMBOL_GPL(regulator_enable_regmap); @@ -1826,8 +1835,15 @@ EXPORT_SYMBOL_GPL(regulator_enable_regmap); */ int regulator_disable_regmap(struct regulator_dev *rdev) { + unsigned int val; + + if (rdev->desc->enable_is_inverted) + val = rdev->desc->enable_mask; + else + val = 0; + return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, - rdev->desc->enable_mask, 0); + rdev->desc->enable_mask, val); } EXPORT_SYMBOL_GPL(regulator_disable_regmap); diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index 23070fd..074b57e 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -199,6 +199,8 @@ enum regulator_type { * output when using regulator_set_voltage_sel_regmap * @enable_reg: Register for control when using regmap enable/disable ops * @enable_mask: Mask for control when using regmap enable/disable ops + * @enable_is_inverted: A flag to indicate set enable_mask bits to disable + * when using regulator_enable_regmap and friends APIs. * * @enable_time: Time taken for initial enable of regulator (in uS). */ @@ -226,6 +228,7 @@ struct regulator_desc { unsigned int apply_bit; unsigned int enable_reg; unsigned int enable_mask; + bool enable_is_inverted; unsigned int bypass_reg; unsigned int bypass_mask; -- 1.7.9.5