[linux-block.git] / drivers / auxdisplay / hd44780.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * HD44780 Character LCD driver for Linux
 *
 * Copyright (C) 2000-2008, Willy Tarreau <w@1wt.eu>
 * Copyright (C) 2016-2017 Glider bvba
 */

#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/platform_device.h>
#include <linux/property.h>
#include <linux/slab.h>

#include "charlcd.h"
#include "hd44780_common.h"

enum hd44780_pin {
	/* Order does matter due to writing to GPIO array subsets! */
	PIN_DATA0,	/* Optional */
	PIN_DATA1,	/* Optional */
	PIN_DATA2,	/* Optional */
	PIN_DATA3,	/* Optional */
	PIN_DATA4,
	PIN_DATA5,
	PIN_DATA6,
	PIN_DATA7,
	PIN_CTRL_RS,
	PIN_CTRL_RW,	/* Optional */
	PIN_CTRL_E,
	PIN_CTRL_BL,   /* Optional */
	PIN_NUM
};

struct hd44780 {
	struct gpio_desc *pins[PIN_NUM];
};

static void hd44780_backlight(struct charlcd *lcd, enum charlcd_onoff on)
{
	struct hd44780_common *hdc = lcd->drvdata;
	struct hd44780 *hd = hdc->hd44780;

	if (hd->pins[PIN_CTRL_BL])
		gpiod_set_value_cansleep(hd->pins[PIN_CTRL_BL], on);
}

static void hd44780_strobe_gpio(struct hd44780 *hd)
{
	/* Maintain the data during 20 us before the strobe */
	udelay(20);

	gpiod_set_value_cansleep(hd->pins[PIN_CTRL_E], 1);

	/* Maintain the strobe during 40 us */
	udelay(40);

	gpiod_set_value_cansleep(hd->pins[PIN_CTRL_E], 0);
}

/* write to an LCD panel register in 8 bit GPIO mode */
static void hd44780_write_gpio8(struct hd44780 *hd, u8 val, unsigned int rs)
{
	DECLARE_BITMAP(values, 10); /* for DATA[0-7], RS, RW */
	unsigned int n;

	values[0] = val;
	__assign_bit(8, values, rs);
	n = hd->pins[PIN_CTRL_RW] ? 10 : 9;

	/* Present the data to the port */
	gpiod_set_array_value_cansleep(n, &hd->pins[PIN_DATA0], NULL, values);

	hd44780_strobe_gpio(hd);
}

/* write to an LCD panel register in 4 bit GPIO mode */
static void hd44780_write_gpio4(struct hd44780 *hd, u8 val, unsigned int rs)
{
	DECLARE_BITMAP(values, 6); /* for DATA[4-7], RS, RW */
	unsigned int n;

	/* High nibble + RS, RW */
	values[0] = val >> 4;
	__assign_bit(4, values, rs);
	n = hd->pins[PIN_CTRL_RW] ? 6 : 5;

	/* Present the data to the port */
	gpiod_set_array_value_cansleep(n, &hd->pins[PIN_DATA4], NULL, values);

	hd44780_strobe_gpio(hd);

	/* Low nibble */
	values[0] &= ~0x0fUL;
	values[0] |= val & 0x0f;

	/* Present the data to the port */
	gpiod_set_array_value_cansleep(n, &hd->pins[PIN_DATA4], NULL, values);

	hd44780_strobe_gpio(hd);
}

/* Send a command to the LCD panel in 8 bit GPIO mode */
static void hd44780_write_cmd_gpio8(struct charlcd *lcd, int cmd)
{
	struct hd44780_common *hdc = lcd->drvdata;
	struct hd44780 *hd = hdc->hd44780;

	hd44780_write_gpio8(hd, cmd, 0);

	/* The shortest command takes at least 120 us */
	udelay(120);
}

/* Send data to the LCD panel in 8 bit GPIO mode */
static void hd44780_write_data_gpio8(struct charlcd *lcd, int data)
{
	struct hd44780_common *hdc = lcd->drvdata;
	struct hd44780 *hd = hdc->hd44780;

	hd44780_write_gpio8(hd, data, 1);

	/* The shortest data takes at least 45 us */
	udelay(45);
}

static const struct charlcd_ops hd44780_ops_gpio8 = {
	.write_cmd	= hd44780_write_cmd_gpio8,
	.write_data	= hd44780_write_data_gpio8,
	.backlight	= hd44780_backlight,
};

/* Send a command to the LCD panel in 4 bit GPIO mode */
static void hd44780_write_cmd_gpio4(struct charlcd *lcd, int cmd)
{
	struct hd44780_common *hdc = lcd->drvdata;
	struct hd44780 *hd = hdc->hd44780;

	hd44780_write_gpio4(hd, cmd, 0);

	/* The shortest command takes at least 120 us */
	udelay(120);
}

/* Send 4-bits of a command to the LCD panel in raw 4 bit GPIO mode */
static void hd44780_write_cmd_raw_gpio4(struct charlcd *lcd, int cmd)
{
	DECLARE_BITMAP(values, 6); /* for DATA[4-7], RS, RW */
	struct hd44780_common *hdc = lcd->drvdata;
	struct hd44780 *hd = hdc->hd44780;
	unsigned int n;

	/* Command nibble + RS, RW */
	values[0] = cmd & 0x0f;
	n = hd->pins[PIN_CTRL_RW] ? 6 : 5;

	/* Present the data to the port */
	gpiod_set_array_value_cansleep(n, &hd->pins[PIN_DATA4], NULL, values);

	hd44780_strobe_gpio(hd);
}

/* Send data to the LCD panel in 4 bit GPIO mode */
static void hd44780_write_data_gpio4(struct charlcd *lcd, int data)
{
	struct hd44780_common *hdc = lcd->drvdata;
	struct hd44780 *hd = hdc->hd44780;

	hd44780_write_gpio4(hd, data, 1);

	/* The shortest data takes at least 45 us */
	udelay(45);
}

static const struct charlcd_ops hd44780_ops_gpio4 = {
	.write_cmd	= hd44780_write_cmd_gpio4,
	.write_cmd_raw4	= hd44780_write_cmd_raw_gpio4,
	.write_data	= hd44780_write_data_gpio4,
	.backlight	= hd44780_backlight,
};

static int hd44780_probe(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;
	unsigned int i, base;
	struct charlcd *lcd;
	struct hd44780_common *hdc;
	struct hd44780 *hd;
	int ifwidth, ret = -ENOMEM;

	/* Required pins */
	ifwidth = gpiod_count(dev, "data");
	if (ifwidth < 0)
		return ifwidth;

	switch (ifwidth) {
	case 4:
		base = PIN_DATA4;
		break;
	case 8:
		base = PIN_DATA0;
		break;
	default:
		return -EINVAL;
	}

	hdc = hd44780_common_alloc();
	if (!hdc)
		return -ENOMEM;

	lcd = charlcd_alloc();
	if (!lcd)
		goto fail1;

	hd = kzalloc(sizeof(struct hd44780), GFP_KERNEL);
	if (!hd)
		goto fail2;

	hdc->hd44780 = hd;
	lcd->drvdata = hdc;
	for (i = 0; i < ifwidth; i++) {
		hd->pins[base + i] = devm_gpiod_get_index(dev, "data", i,
							  GPIOD_OUT_LOW);
		if (IS_ERR(hd->pins[base + i])) {
			ret = PTR_ERR(hd->pins[base + i]);
			goto fail3;
		}
	}

	hd->pins[PIN_CTRL_E] = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
	if (IS_ERR(hd->pins[PIN_CTRL_E])) {
		ret = PTR_ERR(hd->pins[PIN_CTRL_E]);
		goto fail3;
	}

	hd->pins[PIN_CTRL_RS] = devm_gpiod_get(dev, "rs", GPIOD_OUT_HIGH);
	if (IS_ERR(hd->pins[PIN_CTRL_RS])) {
		ret = PTR_ERR(hd->pins[PIN_CTRL_RS]);
		goto fail3;
	}

	/* Optional pins */
	hd->pins[PIN_CTRL_RW] = devm_gpiod_get_optional(dev, "rw",
							GPIOD_OUT_LOW);
	if (IS_ERR(hd->pins[PIN_CTRL_RW])) {
		ret = PTR_ERR(hd->pins[PIN_CTRL_RW]);
		goto fail3;
	}

	hd->pins[PIN_CTRL_BL] = devm_gpiod_get_optional(dev, "backlight",
							GPIOD_OUT_LOW);
	if (IS_ERR(hd->pins[PIN_CTRL_BL])) {
		ret = PTR_ERR(hd->pins[PIN_CTRL_BL]);
		goto fail3;
	}

	/* Required properties */
	ret = device_property_read_u32(dev, "display-height-chars",
				       &lcd->height);
	if (ret)
		goto fail3;
	ret = device_property_read_u32(dev, "display-width-chars", &lcd->width);
	if (ret)
		goto fail3;

	/*
	 * On displays with more than two rows, the internal buffer width is
	 * usually equal to the display width
	 */
	if (lcd->height > 2)
		hdc->bwidth = lcd->width;

	/* Optional properties */
	device_property_read_u32(dev, "internal-buffer-width", &hdc->bwidth);

	hdc->ifwidth = ifwidth;
	lcd->ops = ifwidth == 8 ? &hd44780_ops_gpio8 : &hd44780_ops_gpio4;

	ret = charlcd_register(lcd);
	if (ret)
		goto fail3;

	platform_set_drvdata(pdev, lcd);
	return 0;

fail3:
	kfree(hd);
fail2:
	kfree(lcd);
fail1:
	kfree(hdc);
	return ret;
}

static int hd44780_remove(struct platform_device *pdev)
{
	struct charlcd *lcd = platform_get_drvdata(pdev);

	kfree(lcd->drvdata);
	charlcd_unregister(lcd);

	kfree(lcd);
	return 0;
}

static const struct of_device_id hd44780_of_match[] = {
	{ .compatible = "hit,hd44780" },
	{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, hd44780_of_match);

static struct platform_driver hd44780_driver = {
	.probe = hd44780_probe,
	.remove = hd44780_remove,
	.driver		= {
		.name	= "hd44780",
		.of_match_table = hd44780_of_match,
	},
};

module_platform_driver(hd44780_driver);
MODULE_DESCRIPTION("HD44780 Character LCD driver");
MODULE_AUTHOR("Geert Uytterhoeven <geert@linux-m68k.org>");
MODULE_LICENSE("GPL");
Commit	Line	Data
351f683b	1	// SPDX-License-Identifier: GPL-2.0+
d47d8836 GU	2	/*
	3	* HD44780 Character LCD driver for Linux
	4	*
	5	* Copyright (C) 2000-2008, Willy Tarreau <w@1wt.eu>
	6	* Copyright (C) 2016-2017 Glider bvba
d47d8836 GU	7	*/
	8
	9	#include <linux/delay.h>
	10	#include <linux/gpio/consumer.h>
	11	#include <linux/module.h>
ac316725	12	#include <linux/mod_devicetable.h>
d47d8836 GU	13	#include <linux/platform_device.h>
	14	#include <linux/property.h>
	15	#include <linux/slab.h>
	16
75354284	17	#include "charlcd.h"
718e05ed	18	#include "hd44780_common.h"
d47d8836 GU	19
	20	enum hd44780_pin {
	21	/* Order does matter due to writing to GPIO array subsets! */
	22	PIN_DATA0, /* Optional */
	23	PIN_DATA1, /* Optional */
	24	PIN_DATA2, /* Optional */
	25	PIN_DATA3, /* Optional */
	26	PIN_DATA4,
	27	PIN_DATA5,
	28	PIN_DATA6,
	29	PIN_DATA7,
	30	PIN_CTRL_RS,
	31	PIN_CTRL_RW, /* Optional */
	32	PIN_CTRL_E,
	33	PIN_CTRL_BL, /* Optional */
	34	PIN_NUM
	35	};
	36
	37	struct hd44780 {
	38	struct gpio_desc *pins[PIN_NUM];
	39	};
	40
66ce7d5c	41	static void hd44780_backlight(struct charlcd *lcd, enum charlcd_onoff on)
d47d8836	42	{
2545c1c9 LP	43	struct hd44780_common *hdc = lcd->drvdata;
2545c1c9 LP	44	struct hd44780 *hd = hdc->hd44780;
d47d8836 GU	45
	46	if (hd->pins[PIN_CTRL_BL])
	47	gpiod_set_value_cansleep(hd->pins[PIN_CTRL_BL], on);
	48	}
	49
	50	static void hd44780_strobe_gpio(struct hd44780 *hd)
	51	{
	52	/* Maintain the data during 20 us before the strobe */
	53	udelay(20);
	54
	55	gpiod_set_value_cansleep(hd->pins[PIN_CTRL_E], 1);
	56
	57	/* Maintain the strobe during 40 us */
	58	udelay(40);
	59
	60	gpiod_set_value_cansleep(hd->pins[PIN_CTRL_E], 0);
	61	}
	62
	63	/* write to an LCD panel register in 8 bit GPIO mode */
	64	static void hd44780_write_gpio8(struct hd44780 *hd, u8 val, unsigned int rs)
	65	{
b9762beb JK	66	DECLARE_BITMAP(values, 10); /* for DATA[0-7], RS, RW */
	67	unsigned int n;
	68
	69	values[0] = val;
	70	__assign_bit(8, values, rs);
	71	n = hd->pins[PIN_CTRL_RW] ? 10 : 9;
d47d8836 GU	72
d47d8836 GU	73	/* Present the data to the port */
77588c14	74	gpiod_set_array_value_cansleep(n, &hd->pins[PIN_DATA0], NULL, values);
d47d8836 GU	75
	76	hd44780_strobe_gpio(hd);
	77	}
	78
	79	/* write to an LCD panel register in 4 bit GPIO mode */
	80	static void hd44780_write_gpio4(struct hd44780 *hd, u8 val, unsigned int rs)
	81	{
b9762beb JK	82	DECLARE_BITMAP(values, 6); /* for DATA[4-7], RS, RW */
b9762beb JK	83	unsigned int n;
d47d8836 GU	84
d47d8836 GU	85	/* High nibble + RS, RW */
b9762beb JK	86	values[0] = val >> 4;
	87	__assign_bit(4, values, rs);
	88	n = hd->pins[PIN_CTRL_RW] ? 6 : 5;
d47d8836 GU	89
d47d8836 GU	90	/* Present the data to the port */
77588c14	91	gpiod_set_array_value_cansleep(n, &hd->pins[PIN_DATA4], NULL, values);
d47d8836 GU	92
	93	hd44780_strobe_gpio(hd);
	94
	95	/* Low nibble */
b9762beb JK	96	values[0] &= ~0x0fUL;
b9762beb JK	97	values[0] \|= val & 0x0f;
d47d8836 GU	98
d47d8836 GU	99	/* Present the data to the port */
77588c14	100	gpiod_set_array_value_cansleep(n, &hd->pins[PIN_DATA4], NULL, values);
d47d8836 GU	101
	102	hd44780_strobe_gpio(hd);
	103	}
	104
	105	/* Send a command to the LCD panel in 8 bit GPIO mode */
	106	static void hd44780_write_cmd_gpio8(struct charlcd *lcd, int cmd)
	107	{
2545c1c9 LP	108	struct hd44780_common *hdc = lcd->drvdata;
2545c1c9 LP	109	struct hd44780 *hd = hdc->hd44780;
d47d8836 GU	110
	111	hd44780_write_gpio8(hd, cmd, 0);
	112
	113	/* The shortest command takes at least 120 us */
	114	udelay(120);
	115	}
	116
	117	/* Send data to the LCD panel in 8 bit GPIO mode */
	118	static void hd44780_write_data_gpio8(struct charlcd *lcd, int data)
	119	{
2545c1c9 LP	120	struct hd44780_common *hdc = lcd->drvdata;
2545c1c9 LP	121	struct hd44780 *hd = hdc->hd44780;
d47d8836 GU	122
	123	hd44780_write_gpio8(hd, data, 1);
	124
	125	/* The shortest data takes at least 45 us */
	126	udelay(45);
	127	}
	128
	129	static const struct charlcd_ops hd44780_ops_gpio8 = {
	130	.write_cmd = hd44780_write_cmd_gpio8,
	131	.write_data = hd44780_write_data_gpio8,
	132	.backlight = hd44780_backlight,
	133	};
	134
	135	/* Send a command to the LCD panel in 4 bit GPIO mode */
	136	static void hd44780_write_cmd_gpio4(struct charlcd *lcd, int cmd)
	137	{
2545c1c9 LP	138	struct hd44780_common *hdc = lcd->drvdata;
2545c1c9 LP	139	struct hd44780 *hd = hdc->hd44780;
d47d8836 GU	140
	141	hd44780_write_gpio4(hd, cmd, 0);
	142
	143	/* The shortest command takes at least 120 us */
	144	udelay(120);
	145	}
	146
	147	/* Send 4-bits of a command to the LCD panel in raw 4 bit GPIO mode */
	148	static void hd44780_write_cmd_raw_gpio4(struct charlcd *lcd, int cmd)
	149	{
b9762beb	150	DECLARE_BITMAP(values, 6); /* for DATA[4-7], RS, RW */
2545c1c9 LP	151	struct hd44780_common *hdc = lcd->drvdata;
2545c1c9 LP	152	struct hd44780 *hd = hdc->hd44780;
b9762beb	153	unsigned int n;
d47d8836 GU	154
d47d8836 GU	155	/* Command nibble + RS, RW */
b9762beb JK	156	values[0] = cmd & 0x0f;
b9762beb JK	157	n = hd->pins[PIN_CTRL_RW] ? 6 : 5;
d47d8836 GU	158
d47d8836 GU	159	/* Present the data to the port */
77588c14	160	gpiod_set_array_value_cansleep(n, &hd->pins[PIN_DATA4], NULL, values);
d47d8836 GU	161
	162	hd44780_strobe_gpio(hd);
	163	}
	164
	165	/* Send data to the LCD panel in 4 bit GPIO mode */
	166	static void hd44780_write_data_gpio4(struct charlcd *lcd, int data)
	167	{
2545c1c9 LP	168	struct hd44780_common *hdc = lcd->drvdata;
2545c1c9 LP	169	struct hd44780 *hd = hdc->hd44780;
d47d8836 GU	170
	171	hd44780_write_gpio4(hd, data, 1);
	172
	173	/* The shortest data takes at least 45 us */
	174	udelay(45);
	175	}
	176
	177	static const struct charlcd_ops hd44780_ops_gpio4 = {
	178	.write_cmd = hd44780_write_cmd_gpio4,
	179	.write_cmd_raw4 = hd44780_write_cmd_raw_gpio4,
	180	.write_data = hd44780_write_data_gpio4,
	181	.backlight = hd44780_backlight,
	182	};
	183
	184	static int hd44780_probe(struct platform_device *pdev)
	185	{
	186	struct device *dev = &pdev->dev;
	187	unsigned int i, base;
	188	struct charlcd *lcd;
718e05ed	189	struct hd44780_common *hdc;
d47d8836	190	struct hd44780 *hd;
718e05ed	191	int ifwidth, ret = -ENOMEM;
d47d8836 GU	192
	193	/* Required pins */
	194	ifwidth = gpiod_count(dev, "data");
	195	if (ifwidth < 0)
	196	return ifwidth;
	197
	198	switch (ifwidth) {
	199	case 4:
	200	base = PIN_DATA4;
	201	break;
	202	case 8:
	203	base = PIN_DATA0;
	204	break;
	205	default:
	206	return -EINVAL;
	207	}
	208
718e05ed LP	209	hdc = hd44780_common_alloc();
	210	if (!hdc)
	211	return -ENOMEM;
	212
2545c1c9	213	lcd = charlcd_alloc();
d47d8836	214	if (!lcd)
718e05ed	215	goto fail1;
d47d8836	216
718e05ed LP	217	hd = kzalloc(sizeof(struct hd44780), GFP_KERNEL);
	218	if (!hd)
	219	goto fail2;
d47d8836	220
718e05ed LP	221	hdc->hd44780 = hd;
718e05ed LP	222	lcd->drvdata = hdc;
d47d8836 GU	223	for (i = 0; i < ifwidth; i++) {
	224	hd->pins[base + i] = devm_gpiod_get_index(dev, "data", i,
	225	GPIOD_OUT_LOW);
	226	if (IS_ERR(hd->pins[base + i])) {
	227	ret = PTR_ERR(hd->pins[base + i]);
718e05ed	228	goto fail3;
d47d8836 GU	229	}
	230	}
	231
	232	hd->pins[PIN_CTRL_E] = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
	233	if (IS_ERR(hd->pins[PIN_CTRL_E])) {
	234	ret = PTR_ERR(hd->pins[PIN_CTRL_E]);
718e05ed	235	goto fail3;
d47d8836 GU	236	}
	237
	238	hd->pins[PIN_CTRL_RS] = devm_gpiod_get(dev, "rs", GPIOD_OUT_HIGH);
	239	if (IS_ERR(hd->pins[PIN_CTRL_RS])) {
	240	ret = PTR_ERR(hd->pins[PIN_CTRL_RS]);
718e05ed	241	goto fail3;
d47d8836 GU	242	}
	243
	244	/* Optional pins */
	245	hd->pins[PIN_CTRL_RW] = devm_gpiod_get_optional(dev, "rw",
	246	GPIOD_OUT_LOW);
	247	if (IS_ERR(hd->pins[PIN_CTRL_RW])) {
	248	ret = PTR_ERR(hd->pins[PIN_CTRL_RW]);
718e05ed	249	goto fail3;
d47d8836 GU	250	}
	251
	252	hd->pins[PIN_CTRL_BL] = devm_gpiod_get_optional(dev, "backlight",
	253	GPIOD_OUT_LOW);
	254	if (IS_ERR(hd->pins[PIN_CTRL_BL])) {
	255	ret = PTR_ERR(hd->pins[PIN_CTRL_BL]);
718e05ed	256	goto fail3;
d47d8836 GU	257	}
	258
	259	/* Required properties */
c7c3f096 GU	260	ret = device_property_read_u32(dev, "display-height-chars",
c7c3f096 GU	261	&lcd->height);
d47d8836	262	if (ret)
718e05ed	263	goto fail3;
c7c3f096	264	ret = device_property_read_u32(dev, "display-width-chars", &lcd->width);
d47d8836	265	if (ret)
718e05ed	266	goto fail3;
d47d8836 GU	267
	268	/*
	269	* On displays with more than two rows, the internal buffer width is
	270	* usually equal to the display width
	271	*/
	272	if (lcd->height > 2)
2545c1c9	273	hdc->bwidth = lcd->width;
d47d8836 GU	274
d47d8836 GU	275	/* Optional properties */
2545c1c9	276	device_property_read_u32(dev, "internal-buffer-width", &hdc->bwidth);
d47d8836	277
3fc04dd7	278	hdc->ifwidth = ifwidth;
d47d8836 GU	279	lcd->ops = ifwidth == 8 ? &hd44780_ops_gpio8 : &hd44780_ops_gpio4;
	280
	281	ret = charlcd_register(lcd);
	282	if (ret)
718e05ed	283	goto fail3;
d47d8836 GU	284
	285	platform_set_drvdata(pdev, lcd);
	286	return 0;
	287
718e05ed LP	288	fail3:
	289	kfree(hd);
	290	fail2:
	291	kfree(lcd);
	292	fail1:
	293	kfree(hdc);
d47d8836 GU	294	return ret;
	295	}
	296
	297	static int hd44780_remove(struct platform_device *pdev)
	298	{
	299	struct charlcd *lcd = platform_get_drvdata(pdev);
	300
718e05ed	301	kfree(lcd->drvdata);
d47d8836	302	charlcd_unregister(lcd);
41c8d0ad	303
718e05ed	304	kfree(lcd);
d47d8836 GU	305	return 0;
	306	}
	307
	308	static const struct of_device_id hd44780_of_match[] = {
	309	{ .compatible = "hit,hd44780" },
	310	{ /* sentinel */ }
	311	};
	312	MODULE_DEVICE_TABLE(of, hd44780_of_match);
	313
	314	static struct platform_driver hd44780_driver = {
	315	.probe = hd44780_probe,
	316	.remove = hd44780_remove,
	317	.driver = {
	318	.name = "hd44780",
	319	.of_match_table = hd44780_of_match,
	320	},
	321	};
	322
	323	module_platform_driver(hd44780_driver);
	324	MODULE_DESCRIPTION("HD44780 Character LCD driver");
	325	MODULE_AUTHOR("Geert Uytterhoeven <geert@linux-m68k.org>");
	326	MODULE_LICENSE("GPL");