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authorAndrew F. Davis <afd@ti.com>2016-01-25 09:43:44 -0600
committerLee Jones <lee.jones@linaro.org>2016-02-11 16:30:31 +0000
commit65b6555971d0498b18a0b2fdc6dd7c822f2d69b7 (patch)
treea48bd0c376743b1ab15152437eb7acd6f8a9ea6e /drivers/mfd/tps65912-spi.c
parentc5cdf1d2b2d5e67c5f659640b7b395b47b7ed232 (diff)
downloadblackbird-op-linux-65b6555971d0498b18a0b2fdc6dd7c822f2d69b7.tar.gz
blackbird-op-linux-65b6555971d0498b18a0b2fdc6dd7c822f2d69b7.zip
mfd: tps65912: Remove old driver in preparation for new driver
The old tps65912 driver is being replaced, delete old driver. Signed-off-by: Andrew F. Davis <afd@ti.com> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd/tps65912-spi.c')
-rw-r--r--drivers/mfd/tps65912-spi.c140
1 files changed, 0 insertions, 140 deletions
diff --git a/drivers/mfd/tps65912-spi.c b/drivers/mfd/tps65912-spi.c
deleted file mode 100644
index d59aa55b1495..000000000000
--- a/drivers/mfd/tps65912-spi.c
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * tps65912-spi.c -- SPI access for TI TPS65912x PMIC
- *
- * Copyright 2011 Texas Instruments Inc.
- *
- * Author: Margarita Olaya Cabrera <magi@slimlogic.co.uk>
- *
- * 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.
- *
- * This driver is based on wm8350 implementation.
- */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/gpio.h>
-#include <linux/spi/spi.h>
-#include <linux/mfd/core.h>
-#include <linux/mfd/tps65912.h>
-
-static int tps65912_spi_write(struct tps65912 *tps65912, u8 addr,
- int bytes, void *src)
-{
- struct spi_device *spi = tps65912->control_data;
- u8 *data = (u8 *) src;
- int ret;
- /* bit 23 is the read/write bit */
- unsigned long spi_data = 1 << 23 | addr << 15 | *data;
- struct spi_transfer xfer;
- struct spi_message msg;
- u32 tx_buf;
-
- tx_buf = spi_data;
-
- xfer.tx_buf = &tx_buf;
- xfer.rx_buf = NULL;
- xfer.len = sizeof(unsigned long);
- xfer.bits_per_word = 24;
-
- spi_message_init(&msg);
- spi_message_add_tail(&xfer, &msg);
-
- ret = spi_sync(spi, &msg);
- return ret;
-}
-
-static int tps65912_spi_read(struct tps65912 *tps65912, u8 addr,
- int bytes, void *dest)
-{
- struct spi_device *spi = tps65912->control_data;
- /* bit 23 is the read/write bit */
- unsigned long spi_data = 0 << 23 | addr << 15;
- struct spi_transfer xfer;
- struct spi_message msg;
- int ret;
- u8 *data = (u8 *) dest;
- u32 tx_buf, rx_buf;
-
- tx_buf = spi_data;
- rx_buf = 0;
-
- xfer.tx_buf = &tx_buf;
- xfer.rx_buf = &rx_buf;
- xfer.len = sizeof(unsigned long);
- xfer.bits_per_word = 24;
-
- spi_message_init(&msg);
- spi_message_add_tail(&xfer, &msg);
-
- if (spi == NULL)
- return 0;
-
- ret = spi_sync(spi, &msg);
- if (ret == 0)
- *data = (u8) (rx_buf & 0xFF);
- return ret;
-}
-
-static int tps65912_spi_probe(struct spi_device *spi)
-{
- struct tps65912 *tps65912;
-
- tps65912 = devm_kzalloc(&spi->dev,
- sizeof(struct tps65912), GFP_KERNEL);
- if (tps65912 == NULL)
- return -ENOMEM;
-
- tps65912->dev = &spi->dev;
- tps65912->control_data = spi;
- tps65912->read = tps65912_spi_read;
- tps65912->write = tps65912_spi_write;
-
- spi_set_drvdata(spi, tps65912);
-
- return tps65912_device_init(tps65912);
-}
-
-static int tps65912_spi_remove(struct spi_device *spi)
-{
- struct tps65912 *tps65912 = spi_get_drvdata(spi);
-
- tps65912_device_exit(tps65912);
-
- return 0;
-}
-
-static struct spi_driver tps65912_spi_driver = {
- .driver = {
- .name = "tps65912",
- },
- .probe = tps65912_spi_probe,
- .remove = tps65912_spi_remove,
-};
-
-static int __init tps65912_spi_init(void)
-{
- int ret;
-
- ret = spi_register_driver(&tps65912_spi_driver);
- if (ret != 0)
- pr_err("Failed to register TPS65912 SPI driver: %d\n", ret);
-
- return 0;
-}
-/* init early so consumer devices can complete system boot */
-subsys_initcall(tps65912_spi_init);
-
-static void __exit tps65912_spi_exit(void)
-{
- spi_unregister_driver(&tps65912_spi_driver);
-}
-module_exit(tps65912_spi_exit);
-
-MODULE_AUTHOR("Margarita Olaya <magi@slimlogic.co.uk>");
-MODULE_DESCRIPTION("SPI support for TPS65912 chip family mfd");
-MODULE_LICENSE("GPL");
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