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path: root/ANDROID_3.4.5/drivers/mfd/tps6105x.c
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Diffstat (limited to 'ANDROID_3.4.5/drivers/mfd/tps6105x.c')
-rw-r--r--ANDROID_3.4.5/drivers/mfd/tps6105x.c247
1 files changed, 0 insertions, 247 deletions
diff --git a/ANDROID_3.4.5/drivers/mfd/tps6105x.c b/ANDROID_3.4.5/drivers/mfd/tps6105x.c
deleted file mode 100644
index a293b978..00000000
--- a/ANDROID_3.4.5/drivers/mfd/tps6105x.c
+++ /dev/null
@@ -1,247 +0,0 @@
-/*
- * Core driver for TPS61050/61052 boost converters, used for while LED
- * driving, audio power amplification, white LED flash, and generic
- * boost conversion. Additionally it provides a 1-bit GPIO pin (out or in)
- * and a flash synchronization pin to synchronize flash events when used as
- * flashgun.
- *
- * Copyright (C) 2011 ST-Ericsson SA
- * Written on behalf of Linaro for ST-Ericsson
- *
- * Author: Linus Walleij <linus.walleij@linaro.org>
- *
- * License terms: GNU General Public License (GPL) version 2
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/i2c.h>
-#include <linux/mutex.h>
-#include <linux/gpio.h>
-#include <linux/spinlock.h>
-#include <linux/slab.h>
-#include <linux/err.h>
-#include <linux/regulator/driver.h>
-#include <linux/mfd/core.h>
-#include <linux/mfd/tps6105x.h>
-
-int tps6105x_set(struct tps6105x *tps6105x, u8 reg, u8 value)
-{
- int ret;
-
- ret = mutex_lock_interruptible(&tps6105x->lock);
- if (ret)
- return ret;
- ret = i2c_smbus_write_byte_data(tps6105x->client, reg, value);
- mutex_unlock(&tps6105x->lock);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-EXPORT_SYMBOL(tps6105x_set);
-
-int tps6105x_get(struct tps6105x *tps6105x, u8 reg, u8 *buf)
-{
- int ret;
-
- ret = mutex_lock_interruptible(&tps6105x->lock);
- if (ret)
- return ret;
- ret = i2c_smbus_read_byte_data(tps6105x->client, reg);
- mutex_unlock(&tps6105x->lock);
- if (ret < 0)
- return ret;
-
- *buf = ret;
- return 0;
-}
-EXPORT_SYMBOL(tps6105x_get);
-
-/*
- * Masks off the bits in the mask and sets the bits in the bitvalues
- * parameter in one atomic operation
- */
-int tps6105x_mask_and_set(struct tps6105x *tps6105x, u8 reg,
- u8 bitmask, u8 bitvalues)
-{
- int ret;
- u8 regval;
-
- ret = mutex_lock_interruptible(&tps6105x->lock);
- if (ret)
- return ret;
- ret = i2c_smbus_read_byte_data(tps6105x->client, reg);
- if (ret < 0)
- goto fail;
- regval = ret;
- regval = (~bitmask & regval) | (bitmask & bitvalues);
- ret = i2c_smbus_write_byte_data(tps6105x->client, reg, regval);
-fail:
- mutex_unlock(&tps6105x->lock);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-EXPORT_SYMBOL(tps6105x_mask_and_set);
-
-static int __devinit tps6105x_startup(struct tps6105x *tps6105x)
-{
- int ret;
- u8 regval;
-
- ret = tps6105x_get(tps6105x, TPS6105X_REG_0, &regval);
- if (ret)
- return ret;
- switch (regval >> TPS6105X_REG0_MODE_SHIFT) {
- case TPS6105X_REG0_MODE_SHUTDOWN:
- dev_info(&tps6105x->client->dev,
- "TPS6105x found in SHUTDOWN mode\n");
- break;
- case TPS6105X_REG0_MODE_TORCH:
- dev_info(&tps6105x->client->dev,
- "TPS6105x found in TORCH mode\n");
- break;
- case TPS6105X_REG0_MODE_TORCH_FLASH:
- dev_info(&tps6105x->client->dev,
- "TPS6105x found in FLASH mode\n");
- break;
- case TPS6105X_REG0_MODE_VOLTAGE:
- dev_info(&tps6105x->client->dev,
- "TPS6105x found in VOLTAGE mode\n");
- break;
- default:
- break;
- }
-
- return ret;
-}
-
-/*
- * MFD cells - we have one cell which is selected operation
- * mode, and we always have a GPIO cell.
- */
-static struct mfd_cell tps6105x_cells[] = {
- {
- /* name will be runtime assigned */
- .id = -1,
- },
- {
- .name = "tps6105x-gpio",
- .id = -1,
- },
-};
-
-static int __devinit tps6105x_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct tps6105x *tps6105x;
- struct tps6105x_platform_data *pdata;
- int ret;
- int i;
-
- tps6105x = kmalloc(sizeof(*tps6105x), GFP_KERNEL);
- if (!tps6105x)
- return -ENOMEM;
-
- i2c_set_clientdata(client, tps6105x);
- tps6105x->client = client;
- pdata = client->dev.platform_data;
- tps6105x->pdata = pdata;
- mutex_init(&tps6105x->lock);
-
- ret = tps6105x_startup(tps6105x);
- if (ret) {
- dev_err(&client->dev, "chip initialization failed\n");
- goto fail;
- }
-
- /* Remove warning texts when you implement new cell drivers */
- switch (pdata->mode) {
- case TPS6105X_MODE_SHUTDOWN:
- dev_info(&client->dev,
- "present, not used for anything, only GPIO\n");
- break;
- case TPS6105X_MODE_TORCH:
- tps6105x_cells[0].name = "tps6105x-leds";
- dev_warn(&client->dev,
- "torch mode is unsupported\n");
- break;
- case TPS6105X_MODE_TORCH_FLASH:
- tps6105x_cells[0].name = "tps6105x-flash";
- dev_warn(&client->dev,
- "flash mode is unsupported\n");
- break;
- case TPS6105X_MODE_VOLTAGE:
- tps6105x_cells[0].name ="tps6105x-regulator";
- break;
- default:
- break;
- }
-
- /* Set up and register the platform devices. */
- for (i = 0; i < ARRAY_SIZE(tps6105x_cells); i++) {
- /* One state holder for all drivers, this is simple */
- tps6105x_cells[i].platform_data = tps6105x;
- tps6105x_cells[i].pdata_size = sizeof(*tps6105x);
- }
-
- ret = mfd_add_devices(&client->dev, 0, tps6105x_cells,
- ARRAY_SIZE(tps6105x_cells), NULL, 0);
- if (ret)
- goto fail;
-
- return 0;
-
-fail:
- kfree(tps6105x);
- return ret;
-}
-
-static int __devexit tps6105x_remove(struct i2c_client *client)
-{
- struct tps6105x *tps6105x = i2c_get_clientdata(client);
-
- mfd_remove_devices(&client->dev);
-
- /* Put chip in shutdown mode */
- tps6105x_mask_and_set(tps6105x, TPS6105X_REG_0,
- TPS6105X_REG0_MODE_MASK,
- TPS6105X_MODE_SHUTDOWN << TPS6105X_REG0_MODE_SHIFT);
-
- kfree(tps6105x);
- return 0;
-}
-
-static const struct i2c_device_id tps6105x_id[] = {
- { "tps61050", 0 },
- { "tps61052", 0 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, tps6105x_id);
-
-static struct i2c_driver tps6105x_driver = {
- .driver = {
- .name = "tps6105x",
- },
- .probe = tps6105x_probe,
- .remove = __devexit_p(tps6105x_remove),
- .id_table = tps6105x_id,
-};
-
-static int __init tps6105x_init(void)
-{
- return i2c_add_driver(&tps6105x_driver);
-}
-subsys_initcall(tps6105x_init);
-
-static void __exit tps6105x_exit(void)
-{
- i2c_del_driver(&tps6105x_driver);
-}
-module_exit(tps6105x_exit);
-
-MODULE_AUTHOR("Linus Walleij");
-MODULE_DESCRIPTION("TPS6105x White LED Boost Converter Driver");
-MODULE_LICENSE("GPL v2");
generated by cgit (git 2.34.1) at 2025-03-12 15:34:02 +0000