Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755787AbdC1OSp (ORCPT ); Tue, 28 Mar 2017 10:18:45 -0400 Received: from mx0a-001ae601.pphosted.com ([67.231.149.25]:39302 "EHLO mx0b-001ae601.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752386AbdC1OOj (ORCPT ); Tue, 28 Mar 2017 10:14:39 -0400 Authentication-Results: ppops.net; spf=none smtp.mailfrom=ckeepax@opensource.wolfsonmicro.com From: Charles Keepax To: CC: , , , , , , , Subject: [PATCH v2 4/8] regulator: helpers: Add regmap set_soft_start helper Date: Tue, 28 Mar 2017 15:14:40 +0100 Message-ID: <1490710484-25277-4-git-send-email-ckeepax@opensource.wolfsonmicro.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1490710484-25277-1-git-send-email-ckeepax@opensource.wolfsonmicro.com> References: <1490710484-25277-1-git-send-email-ckeepax@opensource.wolfsonmicro.com> MIME-Version: 1.0 Content-Type: text/plain X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1702020001 definitions=main-1703280124 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2808 Lines: 77 Add a helper function regulator_set_soft_start_regmap to allow regmap based regulators to easily enable soft start. Signed-off-by: Charles Keepax --- Changes since v1: - Added documentation for the new regulator_desc fields to the kernel doc. drivers/regulator/helpers.c | 18 ++++++++++++++++++ include/linux/regulator/driver.h | 8 ++++++++ 2 files changed, 26 insertions(+) diff --git a/drivers/regulator/helpers.c b/drivers/regulator/helpers.c index 379cdac..a75e7da 100644 --- a/drivers/regulator/helpers.c +++ b/drivers/regulator/helpers.c @@ -446,6 +446,24 @@ int regulator_set_bypass_regmap(struct regulator_dev *rdev, bool enable) EXPORT_SYMBOL_GPL(regulator_set_bypass_regmap); /** + * regulator_set_soft_start_regmap - Default set_soft_start() using regmap + * + * @rdev: device to operate on. + */ +int regulator_set_soft_start_regmap(struct regulator_dev *rdev) +{ + unsigned int val; + + val = rdev->desc->soft_start_val_on; + if (!val) + val = rdev->desc->soft_start_mask; + + return regmap_update_bits(rdev->regmap, rdev->desc->soft_start_reg, + rdev->desc->soft_start_mask, val); +} +EXPORT_SYMBOL_GPL(regulator_set_soft_start_regmap); + +/** * regulator_get_bypass_regmap - Default get_bypass() using regmap * * @rdev: device to operate on. diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index dac8e7b1..1054c03 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -292,6 +292,10 @@ enum regulator_type { * set_active_discharge * @active_discharge_reg: Register for control when using regmap * set_active_discharge + * @soft_start_reg: Register for control when using regmap set_soft_start + * @soft_start_mask: Mask for control when using regmap set_soft_start + * @soft_start_val_on: Enabling value for control when using regmap + * set_soft_start * * @enable_time: Time taken for initial enable of regulator (in uS). * @off_on_delay: guard time (in uS), before re-enabling a regulator @@ -345,6 +349,9 @@ struct regulator_desc { unsigned int active_discharge_off; unsigned int active_discharge_mask; unsigned int active_discharge_reg; + unsigned int soft_start_reg; + unsigned int soft_start_mask; + unsigned int soft_start_val_on; unsigned int enable_time; @@ -476,6 +483,7 @@ int regulator_set_voltage_time_sel(struct regulator_dev *rdev, unsigned int new_selector); int regulator_set_bypass_regmap(struct regulator_dev *rdev, bool enable); int regulator_get_bypass_regmap(struct regulator_dev *rdev, bool *enable); +int regulator_set_soft_start_regmap(struct regulator_dev *rdev); int regulator_set_active_discharge_regmap(struct regulator_dev *rdev, bool enable); -- 2.1.4