[deliverable/linux.git] / arch / arm / mach-s3c64xx / mach-crag6410-module.c

/* Speyside modules for Cragganmore - board data probing
 *
 * Copyright 2011 Wolfson Microelectronics plc
 *	Mark Brown <broonie@opensource.wolfsonmicro.com>
 *
 * 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/export.h>
#include <linux/interrupt.h>
#include <linux/i2c.h>
#include <linux/spi/spi.h>

#include <linux/mfd/wm831x/irq.h>
#include <linux/mfd/wm831x/gpio.h>
#include <linux/mfd/wm8994/pdata.h>

#include <linux/regulator/machine.h>

#include <sound/wm5100.h>
#include <sound/wm8996.h>
#include <sound/wm8962.h>
#include <sound/wm9081.h>

#include <plat/s3c64xx-spi.h>

#include <mach/crag6410.h>

static struct s3c64xx_spi_csinfo wm0010_spi_csinfo = {
	.line = S3C64XX_GPC(3),
};

static struct spi_board_info wm1253_devs[] = {
	[0] = {
		.modalias	= "wm0010",
		.bus_num	= 0,
		.chip_select	= 0,
		.mode		= SPI_MODE_0,
		.irq		= S3C_EINT(5),
		.controller_data = &wm0010_spi_csinfo,
	},
};

static struct wm5100_pdata wm5100_pdata = {
	.ldo_ena = S3C64XX_GPN(7),
	.irq_flags = IRQF_TRIGGER_HIGH,
	.gpio_base = CODEC_GPIO_BASE,

	.in_mode = {
		WM5100_IN_DIFF,
		WM5100_IN_DIFF,
		WM5100_IN_DIFF,
		WM5100_IN_SE,
	},

	.hp_pol = CODEC_GPIO_BASE + 3,
	.jack_modes = {
		{ WM5100_MICDET_MICBIAS3, 0, 0 },
		{ WM5100_MICDET_MICBIAS2, 1, 1 },
	},

	.gpio_defaults = {
		0,
		0,
		0,
		0,
		0x2, /* IRQ: CMOS output */
		0x3, /* CLKOUT: CMOS output */
	},
};

static struct wm8996_retune_mobile_config wm8996_retune[] = {
	{
		.name = "Sub LPF",
		.rate = 48000,
		.regs = {
			0x6318, 0x6300, 0x1000, 0x0000, 0x0004, 0x2000, 0xF000,
			0x0000, 0x0004, 0x2000, 0xF000, 0x0000, 0x0004, 0x2000,
			0xF000, 0x0000, 0x0004, 0x1000, 0x0800, 0x4000
		},
	},
	{
		.name = "Sub HPF",
		.rate = 48000,
		.regs = {
			0x000A, 0x6300, 0x1000, 0x0000, 0x0004, 0x2000, 0xF000,
			0x0000, 0x0004, 0x2000, 0xF000, 0x0000, 0x0004, 0x2000,
			0xF000, 0x0000, 0x0004, 0x1000, 0x0800, 0x4000
		},
	},
};

static struct wm8996_pdata wm8996_pdata __initdata = {
	.ldo_ena = S3C64XX_GPN(7),
	.gpio_base = CODEC_GPIO_BASE,
	.micdet_def = 1,
	.inl_mode = WM8996_DIFFERRENTIAL_1,
	.inr_mode = WM8996_DIFFERRENTIAL_1,

	.irq_flags = IRQF_TRIGGER_RISING,

	.gpio_default = {
		0x8001, /* GPIO1 == ADCLRCLK1 */
		0x8001, /* GPIO2 == ADCLRCLK2, input due to CPU */
		0x0141, /* GPIO3 == HP_SEL */
		0x0002, /* GPIO4 == IRQ */
		0x020e, /* GPIO5 == CLKOUT */
	},

	.retune_mobile_cfgs = wm8996_retune,
	.num_retune_mobile_cfgs = ARRAY_SIZE(wm8996_retune),
};

static struct wm8962_pdata wm8962_pdata __initdata = {
	.gpio_init = {
		0,
		WM8962_GPIO_FN_OPCLK,
		WM8962_GPIO_FN_DMICCLK,
		0,
		0x8000 | WM8962_GPIO_FN_DMICDAT,
		WM8962_GPIO_FN_IRQ,    /* Open drain mode */
	},
	.in4_dc_measure = true,
};

static struct wm9081_pdata wm9081_pdata __initdata = {
	.irq_high = false,
	.irq_cmos = false,
};

static const struct i2c_board_info wm1254_devs[] = {
	{ I2C_BOARD_INFO("wm8996", 0x1a),
	  .platform_data = &wm8996_pdata,
	  .irq = GLENFARCLAS_PMIC_IRQ_BASE + WM831X_IRQ_GPIO_2,
	},
	{ I2C_BOARD_INFO("wm9081", 0x6c),
	  .platform_data = &wm9081_pdata, },
};

static const struct i2c_board_info wm1255_devs[] = {
	{ I2C_BOARD_INFO("wm5100", 0x1a),
	  .platform_data = &wm5100_pdata,
	  .irq = GLENFARCLAS_PMIC_IRQ_BASE + WM831X_IRQ_GPIO_2,
	},
	{ I2C_BOARD_INFO("wm9081", 0x6c),
	  .platform_data = &wm9081_pdata, },
};

static const struct i2c_board_info wm1259_devs[] = {
	{ I2C_BOARD_INFO("wm8962", 0x1a),
	  .platform_data = &wm8962_pdata,
	  .irq = GLENFARCLAS_PMIC_IRQ_BASE + WM831X_IRQ_GPIO_2,
	},
};

static struct regulator_init_data wm8994_ldo1 = {
	.supply_regulator = "WALLVDD",
};

static struct regulator_init_data wm8994_ldo2 = {
	.supply_regulator = "WALLVDD",
};

static struct wm8994_pdata wm8994_pdata = {
	.gpio_base = CODEC_GPIO_BASE,
	.gpio_defaults = {
		0x3,          /* IRQ out, active high, CMOS */
	},
	.ldo = {
		 { .init_data = &wm8994_ldo1, },
		 { .init_data = &wm8994_ldo2, },
	},
};

static const struct i2c_board_info wm1277_devs[] = {
	{ I2C_BOARD_INFO("wm8958", 0x1a),  /* WM8958 is the superset */
	  .platform_data = &wm8994_pdata,
	  .irq = GLENFARCLAS_PMIC_IRQ_BASE + WM831X_IRQ_GPIO_2,
	},
};

static const struct i2c_board_info wm5102_devs[] = {
	{ I2C_BOARD_INFO("wm5102", 0x1a),
	  .irq = GLENFARCLAS_PMIC_IRQ_BASE + WM831X_IRQ_GPIO_2, },
};

static const struct i2c_board_info wm6230_i2c_devs[] = {
	{ I2C_BOARD_INFO("wm9081", 0x6c),
	  .platform_data = &wm9081_pdata, },
};

static __devinitdata const struct {
	u8 id;
	const char *name;
	const struct i2c_board_info *i2c_devs;
	int num_i2c_devs;
	const struct spi_board_info *spi_devs;
	int num_spi_devs;
} gf_mods[] = {
	{ .id = 0x01, .name = "1250-EV1 Springbank" },
	{ .id = 0x02, .name = "1251-EV1 Jura" },
	{ .id = 0x03, .name = "1252-EV1 Glenlivet" },
	{ .id = 0x11, .name = "6249-EV2 Glenfarclas", },
	{ .id = 0x14, .name = "6271-EV1 Lochnagar" },
	{ .id = 0x15, .name = "6320-EV1 Bells",
	  .i2c_devs = wm6230_i2c_devs,
	  .num_i2c_devs = ARRAY_SIZE(wm6230_i2c_devs) },
	{ .id = 0x21, .name = "1275-EV1 Mortlach" },
	{ .id = 0x25, .name = "1274-EV1 Glencadam" },
	{ .id = 0x31, .name = "1253-EV1 Tomatin",
	  .spi_devs = wm1253_devs, .num_spi_devs = ARRAY_SIZE(wm1253_devs) },
	{ .id = 0x32, .name = "XXXX-EV1 Caol Illa" },
	{ .id = 0x33, .name = "XXXX-EV1 Oban" },
	{ .id = 0x34, .name = "WM0010-6320-CS42 Balblair" },
	{ .id = 0x39, .name = "1254-EV1 Dallas Dhu",
	  .i2c_devs = wm1254_devs, .num_i2c_devs = ARRAY_SIZE(wm1254_devs) },
	{ .id = 0x3a, .name = "1259-EV1 Tobermory",
	  .i2c_devs = wm1259_devs, .num_i2c_devs = ARRAY_SIZE(wm1259_devs) },
	{ .id = 0x3b, .name = "1255-EV1 Kilchoman",
	  .i2c_devs = wm1255_devs, .num_i2c_devs = ARRAY_SIZE(wm1255_devs) },
	{ .id = 0x3c, .name = "1273-EV1 Longmorn" },
	{ .id = 0x3d, .name = "1277-EV1 Littlemill",
	  .i2c_devs = wm1277_devs, .num_i2c_devs = ARRAY_SIZE(wm1277_devs) },
	{ .id = 0x3e, .name = "WM5102-6271-EV1-CS127",
	  .i2c_devs = wm5102_devs, .num_i2c_devs = ARRAY_SIZE(wm5102_devs) },
};

static __devinit int wlf_gf_module_probe(struct i2c_client *i2c,
					 const struct i2c_device_id *i2c_id)
{
	int ret, i, j, id, rev;

	ret = i2c_smbus_read_byte_data(i2c, 0);
	if (ret < 0) {
		dev_err(&i2c->dev, "Failed to read ID: %d\n", ret);
		return ret;
	}

	id = (ret & 0xfe) >> 2;
	rev = ret & 0x3;
	for (i = 0; i < ARRAY_SIZE(gf_mods); i++)
		if (id == gf_mods[i].id)
			break;

	if (i < ARRAY_SIZE(gf_mods)) {
		dev_info(&i2c->dev, "%s revision %d\n",
			 gf_mods[i].name, rev + 1);

		for (j = 0; j < gf_mods[i].num_i2c_devs; j++) {
			if (!i2c_new_device(i2c->adapter,
					    &(gf_mods[i].i2c_devs[j])))
				dev_err(&i2c->dev,
					"Failed to register dev: %d\n", ret);
		}

		spi_register_board_info(gf_mods[i].spi_devs,
					gf_mods[i].num_spi_devs);
	} else {
		dev_warn(&i2c->dev, "Unknown module ID 0x%x revision %d\n",
			 id, rev + 1);
	}

	return 0;
}

static const struct i2c_device_id wlf_gf_module_id[] = {
	{ "wlf-gf-module", 0 },
	{ }
};

static struct i2c_driver wlf_gf_module_driver = {
	.driver = {
		.name = "wlf-gf-module",
		.owner = THIS_MODULE,
	},
	.probe = wlf_gf_module_probe,
	.id_table = wlf_gf_module_id,
};

static int __init wlf_gf_module_register(void)
{
	return i2c_add_driver(&wlf_gf_module_driver);
}
module_init(wlf_gf_module_register);
Commit	Line	Data
d0f0b43f MB	1	/* Speyside modules for Cragganmore - board data probing
	2	*
	3	* Copyright 2011 Wolfson Microelectronics plc
	4	* Mark Brown <broonie@opensource.wolfsonmicro.com>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2 as
	8	* published by the Free Software Foundation.
	9	*/
	10
a69e4c28	11	#include <linux/export.h>
d0f0b43f MB	12	#include <linux/interrupt.h>
d0f0b43f MB	13	#include <linux/i2c.h>
cda2349a	14	#include <linux/spi/spi.h>
d0f0b43f MB	15
	16	#include <linux/mfd/wm831x/irq.h>
	17	#include <linux/mfd/wm831x/gpio.h>
c5c32c96	18	#include <linux/mfd/wm8994/pdata.h>
d0f0b43f	19
719a4240 MB	20	#include <linux/regulator/machine.h>
719a4240 MB	21
3d19f1cd	22	#include <sound/wm5100.h>
d0f0b43f MB	23	#include <sound/wm8996.h>
	24	#include <sound/wm8962.h>
	25	#include <sound/wm9081.h>
	26
cda2349a MB	27	#include <plat/s3c64xx-spi.h>
cda2349a MB	28
d0f0b43f MB	29	#include <mach/crag6410.h>
d0f0b43f MB	30
cda2349a	31	static struct s3c64xx_spi_csinfo wm0010_spi_csinfo = {
cda2349a MB	32	.line = S3C64XX_GPC(3),
	33	};
	34
	35	static struct spi_board_info wm1253_devs[] = {
	36	[0] = {
	37	.modalias = "wm0010",
	38	.bus_num = 0,
	39	.chip_select = 0,
	40	.mode = SPI_MODE_0,
15211093	41	.irq = S3C_EINT(5),
cda2349a MB	42	.controller_data = &wm0010_spi_csinfo,
	43	},
	44	};
	45
3d19f1cd MB	46	static struct wm5100_pdata wm5100_pdata = {
	47	.ldo_ena = S3C64XX_GPN(7),
	48	.irq_flags = IRQF_TRIGGER_HIGH,
	49	.gpio_base = CODEC_GPIO_BASE,
	50
	51	.in_mode = {
	52	WM5100_IN_DIFF,
	53	WM5100_IN_DIFF,
	54	WM5100_IN_DIFF,
	55	WM5100_IN_SE,
	56	},
	57
	58	.hp_pol = CODEC_GPIO_BASE + 3,
	59	.jack_modes = {
	60	{ WM5100_MICDET_MICBIAS3, 0, 0 },
	61	{ WM5100_MICDET_MICBIAS2, 1, 1 },
	62	},
	63
	64	.gpio_defaults = {
	65	0,
	66	0,
	67	0,
	68	0,
	69	0x2, /* IRQ: CMOS output */
	70	0x3, /* CLKOUT: CMOS output */
	71	},
	72	};
	73
d0f0b43f MB	74	static struct wm8996_retune_mobile_config wm8996_retune[] = {
	75	{
	76	.name = "Sub LPF",
	77	.rate = 48000,
	78	.regs = {
	79	0x6318, 0x6300, 0x1000, 0x0000, 0x0004, 0x2000, 0xF000,
	80	0x0000, 0x0004, 0x2000, 0xF000, 0x0000, 0x0004, 0x2000,
	81	0xF000, 0x0000, 0x0004, 0x1000, 0x0800, 0x4000
	82	},
	83	},
	84	{
	85	.name = "Sub HPF",
	86	.rate = 48000,
	87	.regs = {
	88	0x000A, 0x6300, 0x1000, 0x0000, 0x0004, 0x2000, 0xF000,
	89	0x0000, 0x0004, 0x2000, 0xF000, 0x0000, 0x0004, 0x2000,
	90	0xF000, 0x0000, 0x0004, 0x1000, 0x0800, 0x4000
	91	},
	92	},
	93	};
	94
	95	static struct wm8996_pdata wm8996_pdata __initdata = {
	96	.ldo_ena = S3C64XX_GPN(7),
	97	.gpio_base = CODEC_GPIO_BASE,
	98	.micdet_def = 1,
	99	.inl_mode = WM8996_DIFFERRENTIAL_1,
	100	.inr_mode = WM8996_DIFFERRENTIAL_1,
	101
	102	.irq_flags = IRQF_TRIGGER_RISING,
	103
	104	.gpio_default = {
	105	0x8001, /* GPIO1 == ADCLRCLK1 */
	106	0x8001, /* GPIO2 == ADCLRCLK2, input due to CPU */
	107	0x0141, /* GPIO3 == HP_SEL */
	108	0x0002, /* GPIO4 == IRQ */
	109	0x020e, /* GPIO5 == CLKOUT */
	110	},
	111
	112	.retune_mobile_cfgs = wm8996_retune,
	113	.num_retune_mobile_cfgs = ARRAY_SIZE(wm8996_retune),
	114	};
	115
	116	static struct wm8962_pdata wm8962_pdata __initdata = {
	117	.gpio_init = {
	118	0,
	119	WM8962_GPIO_FN_OPCLK,
	120	WM8962_GPIO_FN_DMICCLK,
	121	0,
	122	0x8000 \| WM8962_GPIO_FN_DMICDAT,
	123	WM8962_GPIO_FN_IRQ, /* Open drain mode */
	124	},
4b9c85f9	125	.in4_dc_measure = true,
d0f0b43f MB	126	};
	127
	128	static struct wm9081_pdata wm9081_pdata __initdata = {
	129	.irq_high = false,
	130	.irq_cmos = false,
	131	};
	132
	133	static const struct i2c_board_info wm1254_devs[] = {
	134	{ I2C_BOARD_INFO("wm8996", 0x1a),
	135	.platform_data = &wm8996_pdata,
	136	.irq = GLENFARCLAS_PMIC_IRQ_BASE + WM831X_IRQ_GPIO_2,
	137	},
	138	{ I2C_BOARD_INFO("wm9081", 0x6c),
	139	.platform_data = &wm9081_pdata, },
	140	};
	141
3aa7779c MB	142	static const struct i2c_board_info wm1255_devs[] = {
3aa7779c MB	143	{ I2C_BOARD_INFO("wm5100", 0x1a),
3d19f1cd	144	.platform_data = &wm5100_pdata,
3aa7779c MB	145	.irq = GLENFARCLAS_PMIC_IRQ_BASE + WM831X_IRQ_GPIO_2,
	146	},
	147	{ I2C_BOARD_INFO("wm9081", 0x6c),
	148	.platform_data = &wm9081_pdata, },
	149	};
	150
d0f0b43f MB	151	static const struct i2c_board_info wm1259_devs[] = {
	152	{ I2C_BOARD_INFO("wm8962", 0x1a),
	153	.platform_data = &wm8962_pdata,
	154	.irq = GLENFARCLAS_PMIC_IRQ_BASE + WM831X_IRQ_GPIO_2,
	155	},
	156	};
	157
bd155d2c MB	158	static struct regulator_init_data wm8994_ldo1 = {
	159	.supply_regulator = "WALLVDD",
	160	};
	161
	162	static struct regulator_init_data wm8994_ldo2 = {
	163	.supply_regulator = "WALLVDD",
	164	};
	165
c5c32c96 MB	166	static struct wm8994_pdata wm8994_pdata = {
	167	.gpio_base = CODEC_GPIO_BASE,
	168	.gpio_defaults = {
	169	0x3, /* IRQ out, active high, CMOS */
	170	},
c5c32c96	171	.ldo = {
bd155d2c MB	172	{ .init_data = &wm8994_ldo1, },
bd155d2c MB	173	{ .init_data = &wm8994_ldo2, },
c5c32c96 MB	174	},
	175	};
	176
	177	static const struct i2c_board_info wm1277_devs[] = {
	178	{ I2C_BOARD_INFO("wm8958", 0x1a), /* WM8958 is the superset */
	179	.platform_data = &wm8994_pdata,
	180	.irq = GLENFARCLAS_PMIC_IRQ_BASE + WM831X_IRQ_GPIO_2,
	181	},
	182	};
d0f0b43f	183
9b6e1b0e MB	184	static const struct i2c_board_info wm5102_devs[] = {
	185	{ I2C_BOARD_INFO("wm5102", 0x1a),
	186	.irq = GLENFARCLAS_PMIC_IRQ_BASE + WM831X_IRQ_GPIO_2, },
	187	};
	188
98dcf905 MB	189	static const struct i2c_board_info wm6230_i2c_devs[] = {
	190	{ I2C_BOARD_INFO("wm9081", 0x6c),
	191	.platform_data = &wm9081_pdata, },
	192	};
	193
d0f0b43f MB	194	static __devinitdata const struct {
	195	u8 id;
	196	const char *name;
	197	const struct i2c_board_info *i2c_devs;
	198	int num_i2c_devs;
cda2349a MB	199	const struct spi_board_info *spi_devs;
cda2349a MB	200	int num_spi_devs;
d0f0b43f MB	201	} gf_mods[] = {
	202	{ .id = 0x01, .name = "1250-EV1 Springbank" },
	203	{ .id = 0x02, .name = "1251-EV1 Jura" },
	204	{ .id = 0x03, .name = "1252-EV1 Glenlivet" },
	205	{ .id = 0x11, .name = "6249-EV2 Glenfarclas", },
f73dc3db	206	{ .id = 0x14, .name = "6271-EV1 Lochnagar" },
98dcf905 MB	207	{ .id = 0x15, .name = "6320-EV1 Bells",
	208	.i2c_devs = wm6230_i2c_devs,
	209	.num_i2c_devs = ARRAY_SIZE(wm6230_i2c_devs) },
d0f0b43f MB	210	{ .id = 0x21, .name = "1275-EV1 Mortlach" },
d0f0b43f MB	211	{ .id = 0x25, .name = "1274-EV1 Glencadam" },
cda2349a MB	212	{ .id = 0x31, .name = "1253-EV1 Tomatin",
cda2349a MB	213	.spi_devs = wm1253_devs, .num_spi_devs = ARRAY_SIZE(wm1253_devs) },
f73dc3db MB	214	{ .id = 0x32, .name = "XXXX-EV1 Caol Illa" },
f73dc3db MB	215	{ .id = 0x33, .name = "XXXX-EV1 Oban" },
58f8c054	216	{ .id = 0x34, .name = "WM0010-6320-CS42 Balblair" },
d0f0b43f MB	217	{ .id = 0x39, .name = "1254-EV1 Dallas Dhu",
	218	.i2c_devs = wm1254_devs, .num_i2c_devs = ARRAY_SIZE(wm1254_devs) },
	219	{ .id = 0x3a, .name = "1259-EV1 Tobermory",
	220	.i2c_devs = wm1259_devs, .num_i2c_devs = ARRAY_SIZE(wm1259_devs) },
3aa7779c MB	221	{ .id = 0x3b, .name = "1255-EV1 Kilchoman",
3aa7779c MB	222	.i2c_devs = wm1255_devs, .num_i2c_devs = ARRAY_SIZE(wm1255_devs) },
d0f0b43f	223	{ .id = 0x3c, .name = "1273-EV1 Longmorn" },
c5c32c96 MB	224	{ .id = 0x3d, .name = "1277-EV1 Littlemill",
c5c32c96 MB	225	.i2c_devs = wm1277_devs, .num_i2c_devs = ARRAY_SIZE(wm1277_devs) },
9b6e1b0e MB	226	{ .id = 0x3e, .name = "WM5102-6271-EV1-CS127",
9b6e1b0e MB	227	.i2c_devs = wm5102_devs, .num_i2c_devs = ARRAY_SIZE(wm5102_devs) },
d0f0b43f MB	228	};
	229
	230	static __devinit int wlf_gf_module_probe(struct i2c_client *i2c,
	231	const struct i2c_device_id *i2c_id)
	232	{
	233	int ret, i, j, id, rev;
	234
	235	ret = i2c_smbus_read_byte_data(i2c, 0);
	236	if (ret < 0) {
	237	dev_err(&i2c->dev, "Failed to read ID: %d\n", ret);
	238	return ret;
	239	}
	240
	241	id = (ret & 0xfe) >> 2;
	242	rev = ret & 0x3;
	243	for (i = 0; i < ARRAY_SIZE(gf_mods); i++)
	244	if (id == gf_mods[i].id)
	245	break;
	246
	247	if (i < ARRAY_SIZE(gf_mods)) {
	248	dev_info(&i2c->dev, "%s revision %d\n",
	249	gf_mods[i].name, rev + 1);
cda2349a	250
d0f0b43f MB	251	for (j = 0; j < gf_mods[i].num_i2c_devs; j++) {
	252	if (!i2c_new_device(i2c->adapter,
	253	&(gf_mods[i].i2c_devs[j])))
	254	dev_err(&i2c->dev,
	255	"Failed to register dev: %d\n", ret);
	256	}
cda2349a MB	257
	258	spi_register_board_info(gf_mods[i].spi_devs,
	259	gf_mods[i].num_spi_devs);
d0f0b43f	260	} else {
fc716894 MB	261	dev_warn(&i2c->dev, "Unknown module ID 0x%x revision %d\n",
fc716894 MB	262	id, rev + 1);
d0f0b43f MB	263	}
	264
	265	return 0;
	266	}
	267
	268	static const struct i2c_device_id wlf_gf_module_id[] = {
	269	{ "wlf-gf-module", 0 },
	270	{ }
	271	};
	272
	273	static struct i2c_driver wlf_gf_module_driver = {
	274	.driver = {
	275	.name = "wlf-gf-module",
	276	.owner = THIS_MODULE,
	277	},
	278	.probe = wlf_gf_module_probe,
	279	.id_table = wlf_gf_module_id,
	280	};
	281
	282	static int __init wlf_gf_module_register(void)
	283	{
	284	return i2c_add_driver(&wlf_gf_module_driver);
	285	}
	286	module_init(wlf_gf_module_register);