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path: root/drivers/regulator/bq24022.c
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Diffstat (limited to 'drivers/regulator/bq24022.c')
-rw-r--r--drivers/regulator/bq24022.c162
1 files changed, 0 insertions, 162 deletions
diff --git a/drivers/regulator/bq24022.c b/drivers/regulator/bq24022.c
deleted file mode 100644
index 9fab6d1bbe80..000000000000
--- a/drivers/regulator/bq24022.c
+++ /dev/null
@@ -1,162 +0,0 @@
-/*
- * Support for TI bq24022 (bqTINY-II) Dual Input (USB/AC Adpater)
- * 1-Cell Li-Ion Charger connected via GPIOs.
- *
- * Copyright (c) 2008 Philipp Zabel
- *
- * 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.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/err.h>
-#include <linux/module.h>
-#include <linux/gpio.h>
-#include <linux/regulator/bq24022.h>
-#include <linux/regulator/driver.h>
-
-
-static int bq24022_set_current_limit(struct regulator_dev *rdev,
- int min_uA, int max_uA)
-{
- struct bq24022_mach_info *pdata = rdev_get_drvdata(rdev);
-
- dev_dbg(rdev_get_dev(rdev), "setting current limit to %s mA\n",
- max_uA >= 500000 ? "500" : "100");
-
- /* REVISIT: maybe return error if min_uA != 0 ? */
- gpio_set_value(pdata->gpio_iset2, max_uA >= 500000);
- return 0;
-}
-
-static int bq24022_get_current_limit(struct regulator_dev *rdev)
-{
- struct bq24022_mach_info *pdata = rdev_get_drvdata(rdev);
-
- return gpio_get_value(pdata->gpio_iset2) ? 500000 : 100000;
-}
-
-static int bq24022_enable(struct regulator_dev *rdev)
-{
- struct bq24022_mach_info *pdata = rdev_get_drvdata(rdev);
-
- dev_dbg(rdev_get_dev(rdev), "enabling charger\n");
-
- gpio_set_value(pdata->gpio_nce, 0);
- return 0;
-}
-
-static int bq24022_disable(struct regulator_dev *rdev)
-{
- struct bq24022_mach_info *pdata = rdev_get_drvdata(rdev);
-
- dev_dbg(rdev_get_dev(rdev), "disabling charger\n");
-
- gpio_set_value(pdata->gpio_nce, 1);
- return 0;
-}
-
-static int bq24022_is_enabled(struct regulator_dev *rdev)
-{
- struct bq24022_mach_info *pdata = rdev_get_drvdata(rdev);
-
- return !gpio_get_value(pdata->gpio_nce);
-}
-
-static struct regulator_ops bq24022_ops = {
- .set_current_limit = bq24022_set_current_limit,
- .get_current_limit = bq24022_get_current_limit,
- .enable = bq24022_enable,
- .disable = bq24022_disable,
- .is_enabled = bq24022_is_enabled,
-};
-
-static struct regulator_desc bq24022_desc = {
- .name = "bq24022",
- .ops = &bq24022_ops,
- .type = REGULATOR_CURRENT,
- .owner = THIS_MODULE,
-};
-
-static int __init bq24022_probe(struct platform_device *pdev)
-{
- struct bq24022_mach_info *pdata = pdev->dev.platform_data;
- struct regulator_dev *bq24022;
- int ret;
-
- if (!pdata || !pdata->gpio_nce || !pdata->gpio_iset2)
- return -EINVAL;
-
- ret = gpio_request(pdata->gpio_nce, "ncharge_en");
- if (ret) {
- dev_dbg(&pdev->dev, "couldn't request nCE GPIO: %d\n",
- pdata->gpio_nce);
- goto err_ce;
- }
- ret = gpio_request(pdata->gpio_iset2, "charge_mode");
- if (ret) {
- dev_dbg(&pdev->dev, "couldn't request ISET2 GPIO: %d\n",
- pdata->gpio_iset2);
- goto err_iset2;
- }
- ret = gpio_direction_output(pdata->gpio_iset2, 0);
- ret = gpio_direction_output(pdata->gpio_nce, 1);
-
- bq24022 = regulator_register(&bq24022_desc, &pdev->dev,
- pdata->init_data, pdata, NULL);
- if (IS_ERR(bq24022)) {
- dev_dbg(&pdev->dev, "couldn't register regulator\n");
- ret = PTR_ERR(bq24022);
- goto err_reg;
- }
- platform_set_drvdata(pdev, bq24022);
- dev_dbg(&pdev->dev, "registered regulator\n");
-
- return 0;
-err_reg:
- gpio_free(pdata->gpio_iset2);
-err_iset2:
- gpio_free(pdata->gpio_nce);
-err_ce:
- return ret;
-}
-
-static int __devexit bq24022_remove(struct platform_device *pdev)
-{
- struct bq24022_mach_info *pdata = pdev->dev.platform_data;
- struct regulator_dev *bq24022 = platform_get_drvdata(pdev);
-
- regulator_unregister(bq24022);
- gpio_free(pdata->gpio_iset2);
- gpio_free(pdata->gpio_nce);
-
- return 0;
-}
-
-static struct platform_driver bq24022_driver = {
- .driver = {
- .name = "bq24022",
- },
- .remove = __devexit_p(bq24022_remove),
-};
-
-static int __init bq24022_init(void)
-{
- return platform_driver_probe(&bq24022_driver, bq24022_probe);
-}
-
-static void __exit bq24022_exit(void)
-{
- platform_driver_unregister(&bq24022_driver);
-}
-
-module_init(bq24022_init);
-module_exit(bq24022_exit);
-
-MODULE_AUTHOR("Philipp Zabel");
-MODULE_DESCRIPTION("TI bq24022 Li-Ion Charger driver");
-MODULE_LICENSE("GPL");