Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933110AbYBTRKk (ORCPT ); Wed, 20 Feb 2008 12:10:40 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1765773AbYBTRJH (ORCPT ); Wed, 20 Feb 2008 12:09:07 -0500 Received: from opensource.wolfsonmicro.com ([80.75.67.52]:35644 "EHLO opensource2.wolfsonmicro.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1765762AbYBTRJF (ORCPT ); Wed, 20 Feb 2008 12:09:05 -0500 Subject: [PATCH 2/6] regulator: regulator driver interface. From: Liam Girdwood To: Andrew Morton Cc: linux-kernel , linux-arm-kernel , Mark Brown Content-Type: text/plain Date: Wed, 20 Feb 2008 17:09:00 +0000 Message-Id: <1203527341.4071.90.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.8.3 (2.8.3-2.fc6) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3975 Lines: 145 This interface allows regulator drivers to register their voltage and current regulators with the core. It also has a notifier call chain for propagating regulator events to clients. Signed-off-by: Liam Girdwood --- include/linux/regulator/regulator-drv.h | 119 +++++++++++++++++++++++++++++++ 1 files changed, 119 insertions(+), 0 deletions(-) create mode 100644 include/linux/regulator/regulator-drv.h diff --git a/include/linux/regulator/regulator-drv.h b/include/linux/regulator/regulator-drv.h new file mode 100644 index 0000000..3c9b398 --- /dev/null +++ b/include/linux/regulator/regulator-drv.h @@ -0,0 +1,119 @@ +/* + * regulator-drv.h -- SoC Regulator support. + * + * Copyright (C) 2007, 2008 Wolfson Microelectronics PLC. + * + * Author: Liam Girdwood + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Regulator Driver Interface. + */ + + +#ifndef __LINUX_REGULATOR_DRV_H_ +#define __LINUX_REGULATOR_DRV_H_ + +#include +#include + +struct regulator_constraints; +struct regulator_cdev; + +/** + * struct regulator_ops - regulator operations. + * + * This struct describes regulator operations. + */ +struct regulator_ops { + + /* get/set regulator voltage */ + int (*set_voltage)(struct regulator_cdev *, int uV); + int (*get_voltage)(struct regulator_cdev *); + + /* get/set regulator current */ + int (*set_current)(struct regulator_cdev *, int uA); + int (*get_current)(struct regulator_cdev *); + + /* enable/disable regulator */ + int (*enable)(struct regulator_cdev *); + int (*disable)(struct regulator_cdev *); + int (*is_enabled)(struct regulator_cdev *); + + /* get/set regulator operating mode (defined in regulator.h) */ + int (*set_mode)(struct regulator_cdev *, unsigned int mode); + unsigned int (*get_mode)(struct regulator_cdev *); + + /* get most efficient regulator operating mode for load */ + unsigned int (*get_optimum_mode)(struct regulator_cdev *, int input_uV, + int output_uV, int load_uA); +}; + +/* + * Regulators can either control voltage or current. + */ +enum regulator_type { + REGULATOR_VOLTAGE, + REGULATOR_CURRENT, +}; + +/** + * struct regulator_desc - Regulator descriptor + * + */ +struct regulator_desc { + const char *name; + int id; + struct regulator_ops *ops; + int irq; + enum regulator_type type; + struct module *owner; +}; + +/** + * regulator_register - register regulator + * @regulator: regulator source + * @reg_data: private regulator data + * + * Called by regulator drivers to register a regulator. + * Returns 0 on success. + */ +struct regulator_cdev *regulator_register( + struct regulator_desc *regulator_desc, void *reg_data); + +/** + * regulator_unregister - unregister regulator + * @regulator: regulator source + * + * Called by regulator drivers to unregister a regulator. + */ +void regulator_unregister(struct regulator_cdev *rcdev); + +/** + * regulator_notifier_call_chain - call regulator event notifier + * @regulator: regulator source + * @event: notifier block + * @data: + * + * Called by regulator drivers to notify clients a regulator event has + * occurred. + */ +int regulator_notifier_call_chain(struct regulator_cdev *rcdev, + unsigned long event, void *data); + +/** + * regulator_get_drvdata - get regulator driver data + * @regulator: regulator + */ +void *rcdev_get_drvdata (struct regulator_cdev *rcdev); + +/** + * regulator_get_id - get regulator ID + * @regulator: regulator + */ +int rcdev_get_id (struct regulator_cdev *rcdev); + + +#endif -- 1.5.4.2 -- 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/