[linux.git] / drivers / clk / clk-si514.c

/*
 * Driver for Silicon Labs Si514 Programmable Oscillator
 *
 * Copyright (C) 2015 Topic Embedded Products
 *
 * Author: Mike Looijmans <[email protected]>
 *
 * 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 program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include <linux/clk-provider.h>
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
#include <linux/slab.h>

/* I2C registers */
#define SI514_REG_LP		0
#define SI514_REG_M_FRAC1	5
#define SI514_REG_M_FRAC2	6
#define SI514_REG_M_FRAC3	7
#define SI514_REG_M_INT_FRAC	8
#define SI514_REG_M_INT		9
#define SI514_REG_HS_DIV	10
#define SI514_REG_LS_HS_DIV	11
#define SI514_REG_OE_STATE	14
#define SI514_REG_RESET		128
#define SI514_REG_CONTROL	132

/* Register values */
#define SI514_RESET_RST		BIT(7)

#define SI514_CONTROL_FCAL	BIT(0)
#define SI514_CONTROL_OE	BIT(2)

#define SI514_MIN_FREQ	    100000U
#define SI514_MAX_FREQ	 250000000U

#define FXO		  31980000U

#define FVCO_MIN	2080000000U
#define FVCO_MAX	2500000000U

#define HS_DIV_MAX	1022

struct clk_si514 {
	struct clk_hw hw;
	struct regmap *regmap;
	struct i2c_client *i2c_client;
};
#define to_clk_si514(_hw)	container_of(_hw, struct clk_si514, hw)

/* Multiplier/divider settings */
struct clk_si514_muldiv {
	u32 m_frac;  /* 29-bit Fractional part of multiplier M */
	u8 m_int; /* Integer part of multiplier M, 65..78 */
	u8 ls_div_bits; /* 2nd divider, as 2^x */
	u16 hs_div; /* 1st divider, must be even and 10<=x<=1022 */
};

/* Enables or disables the output driver */
static int si514_enable_output(struct clk_si514 *data, bool enable)
{
	return regmap_update_bits(data->regmap, SI514_REG_CONTROL,
		SI514_CONTROL_OE, enable ? SI514_CONTROL_OE : 0);
}

/* Retrieve clock multiplier and dividers from hardware */
static int si514_get_muldiv(struct clk_si514 *data,
	struct clk_si514_muldiv *settings)
{
	int err;
	u8 reg[7];

	err = regmap_bulk_read(data->regmap, SI514_REG_M_FRAC1,
			reg, ARRAY_SIZE(reg));
	if (err)
		return err;

	settings->m_frac = reg[0] | reg[1] << 8 | reg[2] << 16 |
			   (reg[3] & 0x1F) << 24;
	settings->m_int = (reg[4] & 0x3f) << 3 | reg[3] >> 5;
	settings->ls_div_bits = (reg[6] >> 4) & 0x07;
	settings->hs_div = (reg[6] & 0x03) << 8 | reg[5];
	return 0;
}

static int si514_set_muldiv(struct clk_si514 *data,
	struct clk_si514_muldiv *settings)
{
	u8 lp;
	u8 reg[7];
	int err;

	/* Calculate LP1/LP2 according to table 13 in the datasheet */
	/* 65.259980246 */
	if (settings->m_int < 65 ||
		(settings->m_int == 65 && settings->m_frac <= 139575831))
		lp = 0x22;
	/* 67.859763463 */
	else if (settings->m_int < 67 ||
		(settings->m_int == 67 && settings->m_frac <= 461581994))
		lp = 0x23;
	/* 72.937624981 */
	else if (settings->m_int < 72 ||
		(settings->m_int == 72 && settings->m_frac <= 503383578))
		lp = 0x33;
	/* 75.843265046 */
	else if (settings->m_int < 75 ||
		(settings->m_int == 75 && settings->m_frac <= 452724474))
		lp = 0x34;
	else
		lp = 0x44;

	err = regmap_write(data->regmap, SI514_REG_LP, lp);
	if (err < 0)
		return err;

	reg[0] = settings->m_frac;
	reg[1] = settings->m_frac >> 8;
	reg[2] = settings->m_frac >> 16;
	reg[3] = settings->m_frac >> 24 | settings->m_int << 5;
	reg[4] = settings->m_int >> 3;
	reg[5] = settings->hs_div;
	reg[6] = (settings->hs_div >> 8) | (settings->ls_div_bits << 4);

	err = regmap_bulk_write(data->regmap, SI514_REG_HS_DIV, reg + 5, 2);
	if (err < 0)
		return err;
	/*
	 * Writing to SI514_REG_M_INT_FRAC triggers the clock change, so that
	 * must be written last
	 */
	return regmap_bulk_write(data->regmap, SI514_REG_M_FRAC1, reg, 5);
}

/* Calculate divider settings for a given frequency */
static int si514_calc_muldiv(struct clk_si514_muldiv *settings,
	unsigned long frequency)
{
	u64 m;
	u32 ls_freq;
	u32 tmp;
	u8 res;

	if ((frequency < SI514_MIN_FREQ) || (frequency > SI514_MAX_FREQ))
		return -EINVAL;

	/* Determine the minimum value of LS_DIV and resulting target freq. */
	ls_freq = frequency;
	if (frequency >= (FVCO_MIN / HS_DIV_MAX))
		settings->ls_div_bits = 0;
	else {
		res = 1;
		tmp = 2 * HS_DIV_MAX;
		while (tmp <= (HS_DIV_MAX * 32)) {
			if ((frequency * tmp) >= FVCO_MIN)
				break;
			++res;
			tmp <<= 1;
		}
		settings->ls_div_bits = res;
		ls_freq = frequency << res;
	}

	/* Determine minimum HS_DIV, round up to even number */
	settings->hs_div = DIV_ROUND_UP(FVCO_MIN >> 1, ls_freq) << 1;

	/* M = LS_DIV x HS_DIV x frequency / F_XO (in fixed-point) */
	m = ((u64)(ls_freq * settings->hs_div) << 29) + (FXO / 2);
	do_div(m, FXO);
	settings->m_frac = (u32)m & (BIT(29) - 1);
	settings->m_int = (u32)(m >> 29);

	return 0;
}

/* Calculate resulting frequency given the register settings */
static unsigned long si514_calc_rate(struct clk_si514_muldiv *settings)
{
	u64 m = settings->m_frac | ((u64)settings->m_int << 29);
	u32 d = settings->hs_div * BIT(settings->ls_div_bits);

	return ((u32)(((m * FXO) + (FXO / 2)) >> 29)) / d;
}

static unsigned long si514_recalc_rate(struct clk_hw *hw,
		unsigned long parent_rate)
{
	struct clk_si514 *data = to_clk_si514(hw);
	struct clk_si514_muldiv settings;
	int err;

	err = si514_get_muldiv(data, &settings);
	if (err) {
		dev_err(&data->i2c_client->dev, "unable to retrieve settings\n");
		return 0;
	}

	return si514_calc_rate(&settings);
}

static long si514_round_rate(struct clk_hw *hw, unsigned long rate,
		unsigned long *parent_rate)
{
	struct clk_si514_muldiv settings;
	int err;

	if (!rate)
		return 0;

	err = si514_calc_muldiv(&settings, rate);
	if (err)
		return err;

	return si514_calc_rate(&settings);
}

/*
 * Update output frequency for big frequency changes (> 1000 ppm).
 * The chip supports <1000ppm changes "on the fly", we haven't implemented
 * that here.
 */
static int si514_set_rate(struct clk_hw *hw, unsigned long rate,
		unsigned long parent_rate)
{
	struct clk_si514 *data = to_clk_si514(hw);
	struct clk_si514_muldiv settings;
	int err;

	err = si514_calc_muldiv(&settings, rate);
	if (err)
		return err;

	si514_enable_output(data, false);

	err = si514_set_muldiv(data, &settings);
	if (err < 0)
		return err; /* Undefined state now, best to leave disabled */

	/* Trigger calibration */
	err = regmap_write(data->regmap, SI514_REG_CONTROL, SI514_CONTROL_FCAL);
	if (err < 0)
		return err;

	/* Applying a new frequency can take up to 10ms */
	usleep_range(10000, 12000);

	si514_enable_output(data, true);

	return err;
}

static const struct clk_ops si514_clk_ops = {
	.recalc_rate = si514_recalc_rate,
	.round_rate = si514_round_rate,
	.set_rate = si514_set_rate,
};

static bool si514_regmap_is_volatile(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case SI514_REG_CONTROL:
	case SI514_REG_RESET:
		return true;
	default:
		return false;
	}
}

static bool si514_regmap_is_writeable(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case SI514_REG_LP:
	case SI514_REG_M_FRAC1 ... SI514_REG_LS_HS_DIV:
	case SI514_REG_OE_STATE:
	case SI514_REG_RESET:
	case SI514_REG_CONTROL:
		return true;
	default:
		return false;
	}
}

static const struct regmap_config si514_regmap_config = {
	.reg_bits = 8,
	.val_bits = 8,
	.cache_type = REGCACHE_RBTREE,
	.max_register = SI514_REG_CONTROL,
	.writeable_reg = si514_regmap_is_writeable,
	.volatile_reg = si514_regmap_is_volatile,
};

static int si514_probe(struct i2c_client *client,
		const struct i2c_device_id *id)
{
	struct clk_si514 *data;
	struct clk_init_data init;
	struct clk *clk;
	int err;

	data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
	if (!data)
		return -ENOMEM;

	init.ops = &si514_clk_ops;
	init.flags = 0;
	init.num_parents = 0;
	data->hw.init = &init;
	data->i2c_client = client;

	if (of_property_read_string(client->dev.of_node, "clock-output-names",
			&init.name))
		init.name = client->dev.of_node->name;

	data->regmap = devm_regmap_init_i2c(client, &si514_regmap_config);
	if (IS_ERR(data->regmap)) {
		dev_err(&client->dev, "failed to allocate register map\n");
		return PTR_ERR(data->regmap);
	}

	i2c_set_clientdata(client, data);

	clk = devm_clk_register(&client->dev, &data->hw);
	if (IS_ERR(clk)) {
		dev_err(&client->dev, "clock registration failed\n");
		return PTR_ERR(clk);
	}
	err = of_clk_add_provider(client->dev.of_node, of_clk_src_simple_get,
			clk);
	if (err) {
		dev_err(&client->dev, "unable to add clk provider\n");
		return err;
	}

	return 0;
}

static int si514_remove(struct i2c_client *client)
{
	of_clk_del_provider(client->dev.of_node);
	return 0;
}

static const struct i2c_device_id si514_id[] = {
	{ "si514", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, si514_id);

static const struct of_device_id clk_si514_of_match[] = {
	{ .compatible = "silabs,si514" },
	{ },
};
MODULE_DEVICE_TABLE(of, clk_si514_of_match);

static struct i2c_driver si514_driver = {
	.driver = {
		.name = "si514",
		.of_match_table = clk_si514_of_match,
	},
	.probe		= si514_probe,
	.remove		= si514_remove,
	.id_table	= si514_id,
};
module_i2c_driver(si514_driver);

MODULE_AUTHOR("Mike Looijmans <[email protected]>");
MODULE_DESCRIPTION("Si514 driver");
MODULE_LICENSE("GPL");
Commit	Line	Data
8ce20e66 ML	1	/*
	2	* Driver for Silicon Labs Si514 Programmable Oscillator
	3	*
	4	* Copyright (C) 2015 Topic Embedded Products
	5	*
	6	* Author: Mike Looijmans <[email protected]>
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License as published by
	10	* the Free Software Foundation; either version 2 of the License, or
	11	* (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*/
	18
	19	#include <linux/clk-provider.h>
	20	#include <linux/delay.h>
	21	#include <linux/module.h>
	22	#include <linux/i2c.h>
	23	#include <linux/regmap.h>
	24	#include <linux/slab.h>
	25
	26	/* I2C registers */
	27	#define SI514_REG_LP 0
	28	#define SI514_REG_M_FRAC1 5
	29	#define SI514_REG_M_FRAC2 6
	30	#define SI514_REG_M_FRAC3 7
	31	#define SI514_REG_M_INT_FRAC 8
	32	#define SI514_REG_M_INT 9
	33	#define SI514_REG_HS_DIV 10
	34	#define SI514_REG_LS_HS_DIV 11
	35	#define SI514_REG_OE_STATE 14
	36	#define SI514_REG_RESET 128
	37	#define SI514_REG_CONTROL 132
	38
	39	/* Register values */
	40	#define SI514_RESET_RST BIT(7)
	41
	42	#define SI514_CONTROL_FCAL BIT(0)
	43	#define SI514_CONTROL_OE BIT(2)
	44
	45	#define SI514_MIN_FREQ 100000U
	46	#define SI514_MAX_FREQ 250000000U
	47
	48	#define FXO 31980000U
	49
	50	#define FVCO_MIN 2080000000U
	51	#define FVCO_MAX 2500000000U
	52
	53	#define HS_DIV_MAX 1022
	54
	55	struct clk_si514 {
	56	struct clk_hw hw;
	57	struct regmap *regmap;
	58	struct i2c_client *i2c_client;
	59	};
	60	#define to_clk_si514(_hw) container_of(_hw, struct clk_si514, hw)
	61
	62	/* Multiplier/divider settings */
	63	struct clk_si514_muldiv {
	64	u32 m_frac; /* 29-bit Fractional part of multiplier M */
65	u8 m_int; /* Integer part of multiplier M, 65..78 */
66	u8 ls_div_bits; /* 2nd divider, as 2^x */
67	u16 hs_div; /* 1st divider, must be even and 10<=x<=1022 */
68	};
69
70	/* Enables or disables the output driver */
71	static int si514_enable_output(struct clk_si514 *data, bool enable)
72	{
73	return regmap_update_bits(data->regmap, SI514_REG_CONTROL,
74	SI514_CONTROL_OE, enable ? SI514_CONTROL_OE : 0);
75	}
76
77	/* Retrieve clock multiplier and dividers from hardware */
78	static int si514_get_muldiv(struct clk_si514 *data,
79	struct clk_si514_muldiv *settings)
80	{
81	int err;
82	u8 reg[7];
83
84	err = regmap_bulk_read(data->regmap, SI514_REG_M_FRAC1,
85	reg, ARRAY_SIZE(reg));
86	if (err)
87	return err;
88
89	settings->m_frac = reg[0] \| reg[1] << 8 \| reg[2] << 16 \|
90	(reg[3] & 0x1F) << 24;
91	settings->m_int = (reg[4] & 0x3f) << 3 \| reg[3] >> 5;
92	settings->ls_div_bits = (reg[6] >> 4) & 0x07;
93	settings->hs_div = (reg[6] & 0x03) << 8 \| reg[5];
94	return 0;
95	}
96
97	static int si514_set_muldiv(struct clk_si514 *data,
98	struct clk_si514_muldiv *settings)
99	{
100	u8 lp;
101	u8 reg[7];
102	int err;
103
104	/* Calculate LP1/LP2 according to table 13 in the datasheet */
105	/* 65.259980246 */
106	if (settings->m_int < 65 \|\|
107	(settings->m_int == 65 && settings->m_frac <= 139575831))
108	lp = 0x22;
109	/* 67.859763463 */
110	else if (settings->m_int < 67 \|\|
111	(settings->m_int == 67 && settings->m_frac <= 461581994))
112	lp = 0x23;
113	/* 72.937624981 */
114	else if (settings->m_int < 72 \|\|
115	(settings->m_int == 72 && settings->m_frac <= 503383578))
116	lp = 0x33;
117	/* 75.843265046 */
118	else if (settings->m_int < 75 \|\|
119	(settings->m_int == 75 && settings->m_frac <= 452724474))
120	lp = 0x34;
121	else
122	lp = 0x44;
123
124	err = regmap_write(data->regmap, SI514_REG_LP, lp);
125	if (err < 0)
126	return err;
127
128	reg[0] = settings->m_frac;
129	reg[1] = settings->m_frac >> 8;
130	reg[2] = settings->m_frac >> 16;
131	reg[3] = settings->m_frac >> 24 \| settings->m_int << 5;
132	reg[4] = settings->m_int >> 3;
133	reg[5] = settings->hs_div;
134	reg[6] = (settings->hs_div >> 8) \| (settings->ls_div_bits << 4);
135
136	err = regmap_bulk_write(data->regmap, SI514_REG_HS_DIV, reg + 5, 2);
137	if (err < 0)
138	return err;
139	/*
140	* Writing to SI514_REG_M_INT_FRAC triggers the clock change, so that
141	* must be written last
142	*/
143	return regmap_bulk_write(data->regmap, SI514_REG_M_FRAC1, reg, 5);
144	}
145
146	/* Calculate divider settings for a given frequency */
147	static int si514_calc_muldiv(struct clk_si514_muldiv *settings,
148	unsigned long frequency)
149	{
150	u64 m;
151	u32 ls_freq;
152	u32 tmp;
153	u8 res;
154
155	if ((frequency < SI514_MIN_FREQ) \|\| (frequency > SI514_MAX_FREQ))
156	return -EINVAL;
157
158	/* Determine the minimum value of LS_DIV and resulting target freq. */
159	ls_freq = frequency;
160	if (frequency >= (FVCO_MIN / HS_DIV_MAX))
161	settings->ls_div_bits = 0;
162	else {
163	res = 1;
164	tmp = 2 * HS_DIV_MAX;
165	while (tmp <= (HS_DIV_MAX * 32)) {
166	if ((frequency * tmp) >= FVCO_MIN)
167	break;
168	++res;
169	tmp <<= 1;
170	}
171	settings->ls_div_bits = res;
172	ls_freq = frequency << res;
173	}
174
175	/* Determine minimum HS_DIV, round up to even number */
176	settings->hs_div = DIV_ROUND_UP(FVCO_MIN >> 1, ls_freq) << 1;
177
178	/* M = LS_DIV x HS_DIV x frequency / F_XO (in fixed-point) */
179	m = ((u64)(ls_freq * settings->hs_div) << 29) + (FXO / 2);
180	do_div(m, FXO);
181	settings->m_frac = (u32)m & (BIT(29) - 1);
182	settings->m_int = (u32)(m >> 29);
183
184	return 0;
185	}
186
187	/* Calculate resulting frequency given the register settings */
188	static unsigned long si514_calc_rate(struct clk_si514_muldiv *settings)
189	{
190	u64 m = settings->m_frac \| ((u64)settings->m_int << 29);
191	u32 d = settings->hs_div * BIT(settings->ls_div_bits);
192
193	return ((u32)(((m * FXO) + (FXO / 2)) >> 29)) / d;
194	}
195
196	static unsigned long si514_recalc_rate(struct clk_hw *hw,
197	unsigned long parent_rate)
198	{
199	struct clk_si514 *data = to_clk_si514(hw);
200	struct clk_si514_muldiv settings;
201	int err;
202
203	err = si514_get_muldiv(data, &settings);
204	if (err) {
205	dev_err(&data->i2c_client->dev, "unable to retrieve settings\n");
206	return 0;
207	}
208
209	return si514_calc_rate(&settings);
210	}
211
212	static long si514_round_rate(struct clk_hw *hw, unsigned long rate,
213	unsigned long *parent_rate)
214	{
215	struct clk_si514_muldiv settings;
216	int err;
217
218	if (!rate)
219	return 0;
220
221	err = si514_calc_muldiv(&settings, rate);
222	if (err)
223	return err;
224
225	return si514_calc_rate(&settings);
226	}
227
228	/*
229	* Update output frequency for big frequency changes (> 1000 ppm).
230	* The chip supports <1000ppm changes "on the fly", we haven't implemented
231	* that here.
232	*/
233	static int si514_set_rate(struct clk_hw *hw, unsigned long rate,
234	unsigned long parent_rate)
235	{
236	struct clk_si514 *data = to_clk_si514(hw);
237	struct clk_si514_muldiv settings;
238	int err;
239
240	err = si514_calc_muldiv(&settings, rate);
241	if (err)
242	return err;
243
244	si514_enable_output(data, false);
245
246	err = si514_set_muldiv(data, &settings);
247	if (err < 0)
248	return err; /* Undefined state now, best to leave disabled */
249
250	/* Trigger calibration */
251	err = regmap_write(data->regmap, SI514_REG_CONTROL, SI514_CONTROL_FCAL);
252	if (err < 0)
253	return err;
254
255	/* Applying a new frequency can take up to 10ms */
256	usleep_range(10000, 12000);
257
258	si514_enable_output(data, true);
259
260	return err;
261	}
262
263	static const struct clk_ops si514_clk_ops = {
264	.recalc_rate = si514_recalc_rate,
265	.round_rate = si514_round_rate,
266	.set_rate = si514_set_rate,
267	};
268
269	static bool si514_regmap_is_volatile(struct device *dev, unsigned int reg)
270	{
271	switch (reg) {
272	case SI514_REG_CONTROL:
273	case SI514_REG_RESET:
274	return true;
275	default:
276	return false;
277	}
278	}
279
280	static bool si514_regmap_is_writeable(struct device *dev, unsigned int reg)
281	{
282	switch (reg) {
283	case SI514_REG_LP:
284	case SI514_REG_M_FRAC1 ... SI514_REG_LS_HS_DIV:
285	case SI514_REG_OE_STATE:
286	case SI514_REG_RESET:
287	case SI514_REG_CONTROL:
288	return true;
289	default:
290	return false;
291	}
292	}
293
294	static const struct regmap_config si514_regmap_config = {
295	.reg_bits = 8,
296	.val_bits = 8,
297	.cache_type = REGCACHE_RBTREE,
298	.max_register = SI514_REG_CONTROL,
299	.writeable_reg = si514_regmap_is_writeable,
300	.volatile_reg = si514_regmap_is_volatile,
301	};
302
303	static int si514_probe(struct i2c_client *client,
304	const struct i2c_device_id *id)
305	{
306	struct clk_si514 *data;
307	struct clk_init_data init;
308	struct clk *clk;
309	int err;
310
311	data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
312	if (!data)
313	return -ENOMEM;
314
315	init.ops = &si514_clk_ops;
803c4331	316	init.flags = 0;
8ce20e66 ML	317	init.num_parents = 0;
	318	data->hw.init = &init;
	319	data->i2c_client = client;
	320
	321	if (of_property_read_string(client->dev.of_node, "clock-output-names",
	322	&init.name))
	323	init.name = client->dev.of_node->name;
	324
	325	data->regmap = devm_regmap_init_i2c(client, &si514_regmap_config);
	326	if (IS_ERR(data->regmap)) {
	327	dev_err(&client->dev, "failed to allocate register map\n");
	328	return PTR_ERR(data->regmap);
	329	}
	330
	331	i2c_set_clientdata(client, data);
	332
	333	clk = devm_clk_register(&client->dev, &data->hw);
	334	if (IS_ERR(clk)) {
	335	dev_err(&client->dev, "clock registration failed\n");
	336	return PTR_ERR(clk);
	337	}
	338	err = of_clk_add_provider(client->dev.of_node, of_clk_src_simple_get,
	339	clk);
	340	if (err) {
	341	dev_err(&client->dev, "unable to add clk provider\n");
	342	return err;
	343	}
	344
	345	return 0;
	346	}
	347
	348	static int si514_remove(struct i2c_client *client)
	349	{
	350	of_clk_del_provider(client->dev.of_node);
	351	return 0;
	352	}
	353
	354	static const struct i2c_device_id si514_id[] = {
	355	{ "si514", 0 },
	356	{ }
	357	};
	358	MODULE_DEVICE_TABLE(i2c, si514_id);
	359
	360	static const struct of_device_id clk_si514_of_match[] = {
	361	{ .compatible = "silabs,si514" },
	362	{ },
	363	};
	364	MODULE_DEVICE_TABLE(of, clk_si514_of_match);
	365
	366	static struct i2c_driver si514_driver = {
	367	.driver = {
	368	.name = "si514",
	369	.of_match_table = clk_si514_of_match,
	370	},
	371	.probe = si514_probe,
	372	.remove = si514_remove,
	373	.id_table = si514_id,
	374	};
	375	module_i2c_driver(si514_driver);
	376
	377	MODULE_AUTHOR("Mike Looijmans <[email protected]>");
	378	MODULE_DESCRIPTION("Si514 driver");
	379	MODULE_LICENSE("GPL");