Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / regulator / pcf50633-regulator.c

diff --git a/kernel/drivers/regulator/pcf50633-regulator.c b/kernel/drivers/regulator/pcf50633-regulator.c
new file mode 100644 (file)
index 0000000..134f90e
--- /dev/null
+++ b/kernel/drivers/regulator/pcf50633-regulator.c
@@ -0,0 +1,128 @@
+/* NXP PCF50633 PMIC Driver
+ *
+ * (C) 2006-2008 by Openmoko, Inc.
+ * Author: Balaji Rao <balajirrao@openmoko.org>
+ * All rights reserved.
+ *
+ * Broken down from monstrous PCF50633 driver mainly by
+ * Harald Welte and Andy Green and Werner Almesberger
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+
+#include <linux/mfd/pcf50633/core.h>
+#include <linux/mfd/pcf50633/pmic.h>
+
+#define PCF50633_REGULATOR(_name, _id, _min_uV, _uV_step, _min_sel, _n) \
+       {                                                       \
+               .name = _name,                                  \
+               .id = PCF50633_REGULATOR_##_id,                 \
+               .ops = &pcf50633_regulator_ops,                 \
+               .n_voltages = _n,                               \
+               .min_uV = _min_uV,                              \
+               .uV_step = _uV_step,                            \
+               .linear_min_sel = _min_sel,                     \
+               .type = REGULATOR_VOLTAGE,                      \
+               .owner = THIS_MODULE,                           \
+               .vsel_reg = PCF50633_REG_##_id##OUT,            \
+               .vsel_mask = 0xff,                              \
+               .enable_reg = PCF50633_REG_##_id##OUT + 1,      \
+               .enable_mask = PCF50633_REGULATOR_ON,           \
+       }
+
+static struct regulator_ops pcf50633_regulator_ops = {
+       .set_voltage_sel = regulator_set_voltage_sel_regmap,
+       .get_voltage_sel = regulator_get_voltage_sel_regmap,
+       .list_voltage = regulator_list_voltage_linear,
+       .map_voltage = regulator_map_voltage_linear,
+       .enable = regulator_enable_regmap,
+       .disable = regulator_disable_regmap,
+       .is_enabled = regulator_is_enabled_regmap,
+};
+
+static const struct regulator_desc regulators[] = {
+       [PCF50633_REGULATOR_AUTO] =
+               PCF50633_REGULATOR("auto", AUTO, 1800000, 25000, 0x2f, 128),
+       [PCF50633_REGULATOR_DOWN1] =
+               PCF50633_REGULATOR("down1", DOWN1, 625000, 25000, 0, 96),
+       [PCF50633_REGULATOR_DOWN2] =
+               PCF50633_REGULATOR("down2", DOWN2, 625000, 25000, 0, 96),
+       [PCF50633_REGULATOR_LDO1] =
+               PCF50633_REGULATOR("ldo1", LDO1, 900000, 100000, 0, 28),
+       [PCF50633_REGULATOR_LDO2] =
+               PCF50633_REGULATOR("ldo2", LDO2, 900000, 100000, 0, 28),
+       [PCF50633_REGULATOR_LDO3] =
+               PCF50633_REGULATOR("ldo3", LDO3, 900000, 100000, 0, 28),
+       [PCF50633_REGULATOR_LDO4] =
+               PCF50633_REGULATOR("ldo4", LDO4, 900000, 100000, 0, 28),
+       [PCF50633_REGULATOR_LDO5] =
+               PCF50633_REGULATOR("ldo5", LDO5, 900000, 100000, 0, 28),
+       [PCF50633_REGULATOR_LDO6] =
+               PCF50633_REGULATOR("ldo6", LDO6, 900000, 100000, 0, 28),
+       [PCF50633_REGULATOR_HCLDO] =
+               PCF50633_REGULATOR("hcldo", HCLDO, 900000, 100000, 0, 28),
+       [PCF50633_REGULATOR_MEMLDO] =
+               PCF50633_REGULATOR("memldo", MEMLDO, 900000, 100000, 0, 28),
+};
+
+static int pcf50633_regulator_probe(struct platform_device *pdev)
+{
+       struct regulator_dev *rdev;
+       struct pcf50633 *pcf;
+       struct regulator_config config = { };
+
+       /* Already set by core driver */
+       pcf = dev_to_pcf50633(pdev->dev.parent);
+
+       config.dev = &pdev->dev;
+       config.init_data = dev_get_platdata(&pdev->dev);
+       config.driver_data = pcf;
+       config.regmap = pcf->regmap;
+
+       rdev = devm_regulator_register(&pdev->dev, &regulators[pdev->id],
+                                      &config);
+       if (IS_ERR(rdev))
+               return PTR_ERR(rdev);
+
+       platform_set_drvdata(pdev, rdev);
+
+       if (pcf->pdata->regulator_registered)
+               pcf->pdata->regulator_registered(pcf, pdev->id);
+
+       return 0;
+}
+
+static struct platform_driver pcf50633_regulator_driver = {
+       .driver = {
+               .name = "pcf50633-regulator",
+       },
+       .probe = pcf50633_regulator_probe,
+};
+
+static int __init pcf50633_regulator_init(void)
+{
+       return platform_driver_register(&pcf50633_regulator_driver);
+}
+subsys_initcall(pcf50633_regulator_init);
+
+static void __exit pcf50633_regulator_exit(void)
+{
+       platform_driver_unregister(&pcf50633_regulator_driver);
+}
+module_exit(pcf50633_regulator_exit);
+
+MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>");
+MODULE_DESCRIPTION("PCF50633 regulator driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pcf50633-regulator");