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Message-Id: <1204827069.15360.148.camel@a10323.wolfsonmicro.main>
Date: Thu, 06 Mar 2008 18:11:09 +0000
From: Liam Girdwood <lg@...nsource.wolfsonmicro.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-arm-kernel <linux-arm-kernel@...ts.arm.linux.org.uk>,
linux-kernel <linux-kernel@...r.kernel.org>,
Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: UPDATED v3][PATCH 2/7] regulator: regulator driver interface
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 <lg@...nsource.wolfsonmicro.com>
---
include/linux/regulator/regulator-drv.h | 85 +++++++++++++++++++++++++++++++
1 files changed, 85 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..3230689
--- /dev/null
+++ b/include/linux/regulator/regulator-drv.h
@@ -0,0 +1,85 @@
+/*
+ * regulator-drv.h -- SoC Regulator support.
+ *
+ * Copyright (C) 2007, 2008 Wolfson Microelectronics PLC.
+ *
+ * Author: Liam Girdwood <lg@...nsource.wolfsonmicro.com>
+ *
+ * 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 <linux/device.h>
+#include <linux/regulator/regulator.h>
+
+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;
+};
+
+
+struct regulator_cdev *regulator_register(struct regulator_desc *regulator_desc,
+ void *reg_data);
+void regulator_unregister(struct regulator_cdev *rcdev);
+
+int regulator_notifier_call_chain(struct regulator_cdev *rcdev,
+ unsigned long event, void *data);
+
+void *rcdev_get_drvdata(struct regulator_cdev *rcdev);
+int rcdev_get_id(struct regulator_cdev *rcdev);
+
+#endif
--
1.5.4.3
--
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