Merge tag 'v2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[mv-sheeva.git] / drivers / mfd / ab8500-spi.c

diff --git a/drivers/mfd/ab8500-spi.c b/drivers/mfd/ab8500-spi.c
deleted file mode 100644 (file)
index b165342..0000000
--- a/drivers/mfd/ab8500-spi.c
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
- * Copyright (C) ST-Ericsson SA 2010
- *
- * License Terms: GNU General Public License v2
- * Author: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
- */
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/spi/spi.h>
-#include <linux/mfd/ab8500.h>
-
-/*
- * This funtion writes to any AB8500 registers using
- * SPI protocol &  before it writes it packs the data
- * in the below 24 bit frame format
- *
- *      *|------------------------------------|
- *      *| 23|22...18|17.......10|9|8|7......0|
- *      *| r/w  bank       adr          data  |
- *      * ------------------------------------
- *
- * This function shouldn't be called from interrupt
- * context
- */
-static int ab8500_spi_write(struct ab8500 *ab8500, u16 addr, u8 data)
-{
-       struct spi_device *spi = container_of(ab8500->dev, struct spi_device,
-                                             dev);
-       unsigned long spi_data = addr << 10 | data;
-       struct spi_transfer xfer;
-       struct spi_message msg;
-
-       ab8500->tx_buf[0] = spi_data;
-       ab8500->rx_buf[0] = 0;
-
-       xfer.tx_buf     = ab8500->tx_buf;
-       xfer.rx_buf     = NULL;
-       xfer.len        = sizeof(unsigned long);
-
-       spi_message_init(&msg);
-       spi_message_add_tail(&xfer, &msg);
-
-       return spi_sync(spi, &msg);
-}
-
-static int ab8500_spi_read(struct ab8500 *ab8500, u16 addr)
-{
-       struct spi_device *spi = container_of(ab8500->dev, struct spi_device,
-                                             dev);
-       unsigned long spi_data = 1 << 23 | addr << 10;
-       struct spi_transfer xfer;
-       struct spi_message msg;
-       int ret;
-
-       ab8500->tx_buf[0] = spi_data;
-       ab8500->rx_buf[0] = 0;
-
-       xfer.tx_buf     = ab8500->tx_buf;
-       xfer.rx_buf     = ab8500->rx_buf;
-       xfer.len        = sizeof(unsigned long);
-
-       spi_message_init(&msg);
-       spi_message_add_tail(&xfer, &msg);
-
-       ret = spi_sync(spi, &msg);
-       if (!ret)
-               /*
-                * Only the 8 lowermost bytes are
-                * defined with value, the rest may
-                * vary depending on chip/board noise.
-                */
-               ret = ab8500->rx_buf[0] & 0xFFU;
-
-       return ret;
-}
-
-static int __devinit ab8500_spi_probe(struct spi_device *spi)
-{
-       struct ab8500 *ab8500;
-       int ret;
-
-       spi->bits_per_word = 24;
-       ret = spi_setup(spi);
-       if (ret < 0)
-               return ret;
-
-       ab8500 = kzalloc(sizeof *ab8500, GFP_KERNEL);
-       if (!ab8500)
-               return -ENOMEM;
-
-       ab8500->dev = &spi->dev;
-       ab8500->irq = spi->irq;
-
-       ab8500->read = ab8500_spi_read;
-       ab8500->write = ab8500_spi_write;
-
-       spi_set_drvdata(spi, ab8500);
-
-       ret = ab8500_init(ab8500);
-       if (ret)
-               kfree(ab8500);
-
-       return ret;
-}
-
-static int __devexit ab8500_spi_remove(struct spi_device *spi)
-{
-       struct ab8500 *ab8500 = spi_get_drvdata(spi);
-
-       ab8500_exit(ab8500);
-       kfree(ab8500);
-
-       return 0;
-}
-
-static struct spi_driver ab8500_spi_driver = {
-       .driver = {
-               .name = "ab8500-spi",
-               .owner = THIS_MODULE,
-       },
-       .probe  = ab8500_spi_probe,
-       .remove = __devexit_p(ab8500_spi_remove)
-};
-
-static int __init ab8500_spi_init(void)
-{
-       return spi_register_driver(&ab8500_spi_driver);
-}
-subsys_initcall(ab8500_spi_init);
-
-static void __exit ab8500_spi_exit(void)
-{
-       spi_unregister_driver(&ab8500_spi_driver);
-}
-module_exit(ab8500_spi_exit);
-
-MODULE_AUTHOR("Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com");
-MODULE_DESCRIPTION("AB8500 SPI");
-MODULE_LICENSE("GPL v2");