spi: reorganize drivers

Sort the SPI makefile and enforce the naming convention spi_*.c for
spi drivers.

This change also rolls the contents of atmel_spi.h into the .c file
since there is only one user of that particular include file.

v2: - Use 'spi-' prefix instead of 'spi_' to match what seems to be
      be the predominant pattern for subsystem prefixes.
    - Clean up filenames in Kconfig and header comment blocks

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 0 insertions, 334 deletions

diff --git a/drivers/spi/tle62x0.c b/drivers/spi/tle62x0.c
deleted file mode 100644
index 32a4087..0000000
--- a/drivers/spi/tle62x0.c
+++ /dev/null
@@ -1,334 +0,0 @@
-/*
- * tle62x0.c -- support Infineon TLE62x0 driver chips
- *
- * Copyright (c) 2007 Simtec Electronics
- *	Ben Dooks, <ben@simtec.co.uk>
- *
- * 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/device.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-
-#include <linux/spi/spi.h>
-#include <linux/spi/tle62x0.h>
-
-
-#define CMD_READ	0x00
-#define CMD_SET		0xff
-
-#define DIAG_NORMAL	0x03
-#define DIAG_OVERLOAD	0x02
-#define DIAG_OPEN	0x01
-#define DIAG_SHORTGND	0x00
-
-struct tle62x0_state {
-	struct spi_device	*us;
-	struct mutex		lock;
-	unsigned int		nr_gpio;
-	unsigned int		gpio_state;
-
-	unsigned char		tx_buff[4];
-	unsigned char		rx_buff[4];
-};
-
-static int to_gpio_num(struct device_attribute *attr);
-
-static inline int tle62x0_write(struct tle62x0_state *st)
-{
-	unsigned char *buff = st->tx_buff;
-	unsigned int gpio_state = st->gpio_state;
-
-	buff[0] = CMD_SET;
-
-	if (st->nr_gpio == 16) {
-		buff[1] = gpio_state >> 8;
-		buff[2] = gpio_state;
-	} else {
-		buff[1] = gpio_state;
-	}
-
-	dev_dbg(&st->us->dev, "buff %02x,%02x,%02x\n",
-		buff[0], buff[1], buff[2]);
-
-	return spi_write(st->us, buff, (st->nr_gpio == 16) ? 3 : 2);
-}
-
-static inline int tle62x0_read(struct tle62x0_state *st)
-{
-	unsigned char *txbuff = st->tx_buff;
-	struct spi_transfer xfer = {
-		.tx_buf		= txbuff,
-		.rx_buf		= st->rx_buff,
-		.len		= (st->nr_gpio * 2) / 8,
-	};
-	struct spi_message msg;
-
-	txbuff[0] = CMD_READ;
-	txbuff[1] = 0x00;
-	txbuff[2] = 0x00;
-	txbuff[3] = 0x00;
-
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-
-	return spi_sync(st->us, &msg);
-}
-
-static unsigned char *decode_fault(unsigned int fault_code)
-{
-	fault_code &= 3;
-
-	switch (fault_code) {
-	case DIAG_NORMAL:
-		return "N";
-	case DIAG_OVERLOAD:
-		return "V";
-	case DIAG_OPEN:
-		return "O";
-	case DIAG_SHORTGND:
-		return "G";
-	}
-
-	return "?";
-}
-
-static ssize_t tle62x0_status_show(struct device *dev,
-		struct device_attribute *attr, char *buf)
-{
-	struct tle62x0_state *st = dev_get_drvdata(dev);
-	char *bp = buf;
-	unsigned char *buff = st->rx_buff;
-	unsigned long fault = 0;
-	int ptr;
-	int ret;
-
-	mutex_lock(&st->lock);
-	ret = tle62x0_read(st);
-	dev_dbg(dev, "tle62x0_read() returned %d\n", ret);
-	if (ret < 0) {
-		mutex_unlock(&st->lock);
-		return ret;
-	}
-
-	for (ptr = 0; ptr < (st->nr_gpio * 2)/8; ptr += 1) {
-		fault <<= 8;
-		fault  |= ((unsigned long)buff[ptr]);
-
-		dev_dbg(dev, "byte %d is %02x\n", ptr, buff[ptr]);
-	}
-
-	for (ptr = 0; ptr < st->nr_gpio; ptr++) {
-		bp += sprintf(bp, "%s ", decode_fault(fault >> (ptr * 2)));
-	}
-
-	*bp++ = '\n';
-
-	mutex_unlock(&st->lock);
-	return bp - buf;
-}
-
-static DEVICE_ATTR(status_show, S_IRUGO, tle62x0_status_show, NULL);
-
-static ssize_t tle62x0_gpio_show(struct device *dev,
-		struct device_attribute *attr, char *buf)
-{
-	struct tle62x0_state *st = dev_get_drvdata(dev);
-	int gpio_num = to_gpio_num(attr);
-	int value;
-
-	mutex_lock(&st->lock);
-	value = (st->gpio_state >> gpio_num) & 1;
-	mutex_unlock(&st->lock);
-
-	return snprintf(buf, PAGE_SIZE, "%d", value);
-}
-
-static ssize_t tle62x0_gpio_store(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf, size_t len)
-{
-	struct tle62x0_state *st = dev_get_drvdata(dev);
-	int gpio_num = to_gpio_num(attr);
-	unsigned long val;
-	char *endp;
-
-	val = simple_strtoul(buf, &endp, 0);
-	if (buf == endp)
-		return -EINVAL;
-
-	dev_dbg(dev, "setting gpio %d to %ld\n", gpio_num, val);
-
-	mutex_lock(&st->lock);
-
-	if (val)
-		st->gpio_state |= 1 << gpio_num;
-	else
-		st->gpio_state &= ~(1 << gpio_num);
-
-	tle62x0_write(st);
-	mutex_unlock(&st->lock);
-
-	return len;
-}
-
-static DEVICE_ATTR(gpio1, S_IWUSR|S_IRUGO,
-		tle62x0_gpio_show, tle62x0_gpio_store);
-static DEVICE_ATTR(gpio2, S_IWUSR|S_IRUGO,
-		tle62x0_gpio_show, tle62x0_gpio_store);
-static DEVICE_ATTR(gpio3, S_IWUSR|S_IRUGO,
-		tle62x0_gpio_show, tle62x0_gpio_store);
-static DEVICE_ATTR(gpio4, S_IWUSR|S_IRUGO,
-		tle62x0_gpio_show, tle62x0_gpio_store);
-static DEVICE_ATTR(gpio5, S_IWUSR|S_IRUGO,
-		tle62x0_gpio_show, tle62x0_gpio_store);
-static DEVICE_ATTR(gpio6, S_IWUSR|S_IRUGO,
-		tle62x0_gpio_show, tle62x0_gpio_store);
-static DEVICE_ATTR(gpio7, S_IWUSR|S_IRUGO,
-		tle62x0_gpio_show, tle62x0_gpio_store);
-static DEVICE_ATTR(gpio8, S_IWUSR|S_IRUGO,
-		tle62x0_gpio_show, tle62x0_gpio_store);
-static DEVICE_ATTR(gpio9, S_IWUSR|S_IRUGO,
-		tle62x0_gpio_show, tle62x0_gpio_store);
-static DEVICE_ATTR(gpio10, S_IWUSR|S_IRUGO,
-		tle62x0_gpio_show, tle62x0_gpio_store);
-static DEVICE_ATTR(gpio11, S_IWUSR|S_IRUGO,
-		tle62x0_gpio_show, tle62x0_gpio_store);
-static DEVICE_ATTR(gpio12, S_IWUSR|S_IRUGO,
-		tle62x0_gpio_show, tle62x0_gpio_store);
-static DEVICE_ATTR(gpio13, S_IWUSR|S_IRUGO,
-		tle62x0_gpio_show, tle62x0_gpio_store);
-static DEVICE_ATTR(gpio14, S_IWUSR|S_IRUGO,
-		tle62x0_gpio_show, tle62x0_gpio_store);
-static DEVICE_ATTR(gpio15, S_IWUSR|S_IRUGO,
-		tle62x0_gpio_show, tle62x0_gpio_store);
-static DEVICE_ATTR(gpio16, S_IWUSR|S_IRUGO,
-		tle62x0_gpio_show, tle62x0_gpio_store);
-
-static struct device_attribute *gpio_attrs[] = {
-	[0]		= &dev_attr_gpio1,
-	[1]		= &dev_attr_gpio2,
-	[2]		= &dev_attr_gpio3,
-	[3]		= &dev_attr_gpio4,
-	[4]		= &dev_attr_gpio5,
-	[5]		= &dev_attr_gpio6,
-	[6]		= &dev_attr_gpio7,
-	[7]		= &dev_attr_gpio8,
-	[8]		= &dev_attr_gpio9,
-	[9]		= &dev_attr_gpio10,
-	[10]		= &dev_attr_gpio11,
-	[11]		= &dev_attr_gpio12,
-	[12]		= &dev_attr_gpio13,
-	[13]		= &dev_attr_gpio14,
-	[14]		= &dev_attr_gpio15,
-	[15]		= &dev_attr_gpio16
-};
-
-static int to_gpio_num(struct device_attribute *attr)
-{
-	int ptr;
-
-	for (ptr = 0; ptr < ARRAY_SIZE(gpio_attrs); ptr++) {
-		if (gpio_attrs[ptr] == attr)
-			return ptr;
-	}
-
-	return -1;
-}
-
-static int __devinit tle62x0_probe(struct spi_device *spi)
-{
-	struct tle62x0_state *st;
-	struct tle62x0_pdata *pdata;
-	int ptr;
-	int ret;
-
-	pdata = spi->dev.platform_data;
-	if (pdata == NULL) {
-		dev_err(&spi->dev, "no device data specified\n");
-		return -EINVAL;
-	}
-
-	st = kzalloc(sizeof(struct tle62x0_state), GFP_KERNEL);
-	if (st == NULL) {
-		dev_err(&spi->dev, "no memory for device state\n");
-		return -ENOMEM;
-	}
-
-	st->us = spi;
-	st->nr_gpio = pdata->gpio_count;
-	st->gpio_state = pdata->init_state;
-
-	mutex_init(&st->lock);
-
-	ret = device_create_file(&spi->dev, &dev_attr_status_show);
-	if (ret) {
-		dev_err(&spi->dev, "cannot create status attribute\n");
-		goto err_status;
-	}
-
-	for (ptr = 0; ptr < pdata->gpio_count; ptr++) {
-		ret = device_create_file(&spi->dev, gpio_attrs[ptr]);
-		if (ret) {
-			dev_err(&spi->dev, "cannot create gpio attribute\n");
-			goto err_gpios;
-		}
-	}
-
-	/* tle62x0_write(st); */
-	spi_set_drvdata(spi, st);
-	return 0;
-
- err_gpios:
-	while (--ptr >= 0)
-		device_remove_file(&spi->dev, gpio_attrs[ptr]);
-
-	device_remove_file(&spi->dev, &dev_attr_status_show);
-
- err_status:
-	kfree(st);
-	return ret;
-}
-
-static int __devexit tle62x0_remove(struct spi_device *spi)
-{
-	struct tle62x0_state *st = spi_get_drvdata(spi);
-	int ptr;
-
-	for (ptr = 0; ptr < st->nr_gpio; ptr++)
-		device_remove_file(&spi->dev, gpio_attrs[ptr]);
-
-	device_remove_file(&spi->dev, &dev_attr_status_show);
-	kfree(st);
-	return 0;
-}
-
-static struct spi_driver tle62x0_driver = {
-	.driver = {
-		.name	= "tle62x0",
-		.owner	= THIS_MODULE,
-	},
-	.probe		= tle62x0_probe,
-	.remove		= __devexit_p(tle62x0_remove),
-};
-
-static __init int tle62x0_init(void)
-{
-	return spi_register_driver(&tle62x0_driver);
-}
-
-static __exit void tle62x0_exit(void)
-{
-	spi_unregister_driver(&tle62x0_driver);
-}
-
-module_init(tle62x0_init);
-module_exit(tle62x0_exit);
-
-MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
-MODULE_DESCRIPTION("TLE62x0 SPI driver");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("spi:tle62x0");