[mirror_ubuntu-zesty-kernel.git] / drivers / clk / clk-s2mps11.c

/*
 * clk-s2mps11.c - Clock driver for S2MPS11.
 *
 * Copyright (C) 2013,2014 Samsung Electornics
 *
 * 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/module.h>
#include <linux/err.h>
#include <linux/of.h>
#include <linux/clkdev.h>
#include <linux/regmap.h>
#include <linux/clk-provider.h>
#include <linux/platform_device.h>
#include <linux/mfd/samsung/s2mps11.h>
#include <linux/mfd/samsung/s2mps14.h>
#include <linux/mfd/samsung/s5m8767.h>
#include <linux/mfd/samsung/core.h>

#define s2mps11_name(a) (a->hw.init->name)

static struct clk **clk_table;
static struct clk_onecell_data clk_data;

enum {
	S2MPS11_CLK_AP = 0,
	S2MPS11_CLK_CP,
	S2MPS11_CLK_BT,
	S2MPS11_CLKS_NUM,
};

struct s2mps11_clk {
	struct sec_pmic_dev *iodev;
	struct device_node *clk_np;
	struct clk_hw hw;
	struct clk *clk;
	struct clk_lookup *lookup;
	u32 mask;
	bool enabled;
	unsigned int reg;
};

static struct s2mps11_clk *to_s2mps11_clk(struct clk_hw *hw)
{
	return container_of(hw, struct s2mps11_clk, hw);
}

static int s2mps11_clk_prepare(struct clk_hw *hw)
{
	struct s2mps11_clk *s2mps11 = to_s2mps11_clk(hw);
	int ret;

	ret = regmap_update_bits(s2mps11->iodev->regmap_pmic,
				 s2mps11->reg,
				 s2mps11->mask, s2mps11->mask);
	if (!ret)
		s2mps11->enabled = true;

	return ret;
}

static void s2mps11_clk_unprepare(struct clk_hw *hw)
{
	struct s2mps11_clk *s2mps11 = to_s2mps11_clk(hw);
	int ret;

	ret = regmap_update_bits(s2mps11->iodev->regmap_pmic, s2mps11->reg,
			   s2mps11->mask, ~s2mps11->mask);

	if (!ret)
		s2mps11->enabled = false;
}

static int s2mps11_clk_is_enabled(struct clk_hw *hw)
{
	struct s2mps11_clk *s2mps11 = to_s2mps11_clk(hw);

	return s2mps11->enabled;
}

static unsigned long s2mps11_clk_recalc_rate(struct clk_hw *hw,
					     unsigned long parent_rate)
{
	struct s2mps11_clk *s2mps11 = to_s2mps11_clk(hw);
	if (s2mps11->enabled)
		return 32768;
	else
		return 0;
}

static struct clk_ops s2mps11_clk_ops = {
	.prepare	= s2mps11_clk_prepare,
	.unprepare	= s2mps11_clk_unprepare,
	.is_enabled	= s2mps11_clk_is_enabled,
	.recalc_rate	= s2mps11_clk_recalc_rate,
};

static struct clk_init_data s2mps11_clks_init[S2MPS11_CLKS_NUM] = {
	[S2MPS11_CLK_AP] = {
		.name = "s2mps11_ap",
		.ops = &s2mps11_clk_ops,
		.flags = CLK_IS_ROOT,
	},
	[S2MPS11_CLK_CP] = {
		.name = "s2mps11_cp",
		.ops = &s2mps11_clk_ops,
		.flags = CLK_IS_ROOT,
	},
	[S2MPS11_CLK_BT] = {
		.name = "s2mps11_bt",
		.ops = &s2mps11_clk_ops,
		.flags = CLK_IS_ROOT,
	},
};

static struct clk_init_data s2mps14_clks_init[S2MPS11_CLKS_NUM] = {
	[S2MPS11_CLK_AP] = {
		.name = "s2mps14_ap",
		.ops = &s2mps11_clk_ops,
		.flags = CLK_IS_ROOT,
	},
	[S2MPS11_CLK_BT] = {
		.name = "s2mps14_bt",
		.ops = &s2mps11_clk_ops,
		.flags = CLK_IS_ROOT,
	},
};

static struct device_node *s2mps11_clk_parse_dt(struct platform_device *pdev,
		struct clk_init_data *clks_init)
{
	struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
	struct device_node *clk_np;
	int i;

	if (!iodev->dev->of_node)
		return ERR_PTR(-EINVAL);

	clk_np = of_get_child_by_name(iodev->dev->of_node, "clocks");
	if (!clk_np) {
		dev_err(&pdev->dev, "could not find clock sub-node\n");
		return ERR_PTR(-EINVAL);
	}

	for (i = 0; i < S2MPS11_CLKS_NUM; i++) {
		if (!clks_init[i].name)
			continue; /* Skip clocks not present in some devices */
		of_property_read_string_index(clk_np, "clock-output-names", i,
				&clks_init[i].name);
	}

	return clk_np;
}

static int s2mps11_clk_probe(struct platform_device *pdev)
{
	struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
	struct s2mps11_clk *s2mps11_clks, *s2mps11_clk;
	unsigned int s2mps11_reg;
	struct clk_init_data *clks_init;
	int i, ret = 0;
	u32 val;

	s2mps11_clks = devm_kzalloc(&pdev->dev, sizeof(*s2mps11_clk) *
					S2MPS11_CLKS_NUM, GFP_KERNEL);
	if (!s2mps11_clks)
		return -ENOMEM;

	s2mps11_clk = s2mps11_clks;

	clk_table = devm_kzalloc(&pdev->dev, sizeof(struct clk *) *
				 S2MPS11_CLKS_NUM, GFP_KERNEL);
	if (!clk_table)
		return -ENOMEM;

	switch(platform_get_device_id(pdev)->driver_data) {
	case S2MPS11X:
		s2mps11_reg = S2MPS11_REG_RTC_CTRL;
		clks_init = s2mps11_clks_init;
		break;
	case S2MPS14X:
		s2mps11_reg = S2MPS14_REG_RTCCTRL;
		clks_init = s2mps14_clks_init;
		break;
	case S5M8767X:
		s2mps11_reg = S5M8767_REG_CTRL1;
		clks_init = s2mps11_clks_init;
		break;
	default:
		dev_err(&pdev->dev, "Invalid device type\n");
		return -EINVAL;
	};

	/* Store clocks of_node in first element of s2mps11_clks array */
	s2mps11_clks->clk_np = s2mps11_clk_parse_dt(pdev, clks_init);
	if (IS_ERR(s2mps11_clks->clk_np))
		return PTR_ERR(s2mps11_clks->clk_np);

	for (i = 0; i < S2MPS11_CLKS_NUM; i++, s2mps11_clk++) {
		if (!clks_init[i].name)
			continue; /* Skip clocks not present in some devices */
		s2mps11_clk->iodev = iodev;
		s2mps11_clk->hw.init = &clks_init[i];
		s2mps11_clk->mask = 1 << i;
		s2mps11_clk->reg = s2mps11_reg;

		ret = regmap_read(s2mps11_clk->iodev->regmap_pmic,
				  s2mps11_clk->reg, &val);
		if (ret < 0)
			goto err_reg;

		s2mps11_clk->enabled = val & s2mps11_clk->mask;

		s2mps11_clk->clk = devm_clk_register(&pdev->dev,
							&s2mps11_clk->hw);
		if (IS_ERR(s2mps11_clk->clk)) {
			dev_err(&pdev->dev, "Fail to register : %s\n",
						s2mps11_name(s2mps11_clk));
			ret = PTR_ERR(s2mps11_clk->clk);
			goto err_reg;
		}

		s2mps11_clk->lookup = devm_kzalloc(&pdev->dev,
					sizeof(struct clk_lookup), GFP_KERNEL);
		if (!s2mps11_clk->lookup) {
			ret = -ENOMEM;
			goto err_lup;
		}

		s2mps11_clk->lookup->con_id = s2mps11_name(s2mps11_clk);
		s2mps11_clk->lookup->clk = s2mps11_clk->clk;

		clkdev_add(s2mps11_clk->lookup);
	}

	for (i = 0; i < S2MPS11_CLKS_NUM; i++) {
		/* Skip clocks not present on S2MPS14 */
		if (!clks_init[i].name)
			continue;
		clk_table[i] = s2mps11_clks[i].clk;
	}

	clk_data.clks = clk_table;
	clk_data.clk_num = S2MPS11_CLKS_NUM;
	of_clk_add_provider(s2mps11_clks->clk_np, of_clk_src_onecell_get,
			&clk_data);

	platform_set_drvdata(pdev, s2mps11_clks);

	return ret;
err_lup:
	devm_clk_unregister(&pdev->dev, s2mps11_clk->clk);
err_reg:
	while (s2mps11_clk > s2mps11_clks) {
		if (s2mps11_clk->lookup) {
			clkdev_drop(s2mps11_clk->lookup);
			devm_clk_unregister(&pdev->dev, s2mps11_clk->clk);
		}
		s2mps11_clk--;
	}

	return ret;
}

static int s2mps11_clk_remove(struct platform_device *pdev)
{
	struct s2mps11_clk *s2mps11_clks = platform_get_drvdata(pdev);
	int i;

	of_clk_del_provider(s2mps11_clks[0].clk_np);
	/* Drop the reference obtained in s2mps11_clk_parse_dt */
	of_node_put(s2mps11_clks[0].clk_np);

	for (i = 0; i < S2MPS11_CLKS_NUM; i++) {
		/* Skip clocks not present on S2MPS14 */
		if (!s2mps11_clks[i].lookup)
			continue;
		clkdev_drop(s2mps11_clks[i].lookup);
	}

	return 0;
}

static const struct platform_device_id s2mps11_clk_id[] = {
	{ "s2mps11-clk", S2MPS11X},
	{ "s2mps14-clk", S2MPS14X},
	{ "s5m8767-clk", S5M8767X},
	{ },
};
MODULE_DEVICE_TABLE(platform, s2mps11_clk_id);

static struct platform_driver s2mps11_clk_driver = {
	.driver = {
		.name  = "s2mps11-clk",
		.owner = THIS_MODULE,
	},
	.probe = s2mps11_clk_probe,
	.remove = s2mps11_clk_remove,
	.id_table = s2mps11_clk_id,
};

static int __init s2mps11_clk_init(void)
{
	return platform_driver_register(&s2mps11_clk_driver);
}
subsys_initcall(s2mps11_clk_init);

static void __init s2mps11_clk_cleanup(void)
{
	platform_driver_unregister(&s2mps11_clk_driver);
}
module_exit(s2mps11_clk_cleanup);

MODULE_DESCRIPTION("S2MPS11 Clock Driver");
MODULE_AUTHOR("Yadwinder Singh Brar <yadi.brar@samsung.com>");
MODULE_LICENSE("GPL");
Commit	Line	Data
7cc560de YSB	1	/*
	2	* clk-s2mps11.c - Clock driver for S2MPS11.
	3	*
e8b60a45	4	* Copyright (C) 2013,2014 Samsung Electornics
7cc560de YSB	5	*
	6	* This program is free software; you can redistribute it and/or modify it
	7	* under the terms of the GNU General Public License as published by the
	8	* Free Software Foundation; either version 2 of the License, or (at your
	9	* option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
7cc560de YSB	16	*/
	17
	18	#include <linux/module.h>
	19	#include <linux/err.h>
	20	#include <linux/of.h>
	21	#include <linux/clkdev.h>
	22	#include <linux/regmap.h>
	23	#include <linux/clk-provider.h>
	24	#include <linux/platform_device.h>
	25	#include <linux/mfd/samsung/s2mps11.h>
e8b60a45	26	#include <linux/mfd/samsung/s2mps14.h>
e8e6b840	27	#include <linux/mfd/samsung/s5m8767.h>
7cc560de YSB	28	#include <linux/mfd/samsung/core.h>
	29
	30	#define s2mps11_name(a) (a->hw.init->name)
	31
	32	static struct clk **clk_table;
	33	static struct clk_onecell_data clk_data;
	34
	35	enum {
	36	S2MPS11_CLK_AP = 0,
	37	S2MPS11_CLK_CP,
	38	S2MPS11_CLK_BT,
	39	S2MPS11_CLKS_NUM,
	40	};
	41
	42	struct s2mps11_clk {
	43	struct sec_pmic_dev *iodev;
bf416bd4	44	struct device_node *clk_np;
7cc560de YSB	45	struct clk_hw hw;
	46	struct clk *clk;
	47	struct clk_lookup *lookup;
	48	u32 mask;
	49	bool enabled;
64d64c35	50	unsigned int reg;
7cc560de YSB	51	};
	52
	53	static struct s2mps11_clk to_s2mps11_clk(struct clk_hw hw)
	54	{
	55	return container_of(hw, struct s2mps11_clk, hw);
	56	}
	57
	58	static int s2mps11_clk_prepare(struct clk_hw *hw)
	59	{
	60	struct s2mps11_clk *s2mps11 = to_s2mps11_clk(hw);
	61	int ret;
	62
1b1ccee1	63	ret = regmap_update_bits(s2mps11->iodev->regmap_pmic,
64d64c35	64	s2mps11->reg,
7cc560de YSB	65	s2mps11->mask, s2mps11->mask);
	66	if (!ret)
	67	s2mps11->enabled = true;
	68
	69	return ret;
	70	}
	71
	72	static void s2mps11_clk_unprepare(struct clk_hw *hw)
	73	{
	74	struct s2mps11_clk *s2mps11 = to_s2mps11_clk(hw);
	75	int ret;
	76
64d64c35	77	ret = regmap_update_bits(s2mps11->iodev->regmap_pmic, s2mps11->reg,
7cc560de YSB	78	s2mps11->mask, ~s2mps11->mask);
	79
	80	if (!ret)
	81	s2mps11->enabled = false;
	82	}
	83
	84	static int s2mps11_clk_is_enabled(struct clk_hw *hw)
	85	{
	86	struct s2mps11_clk *s2mps11 = to_s2mps11_clk(hw);
	87
	88	return s2mps11->enabled;
	89	}
	90
	91	static unsigned long s2mps11_clk_recalc_rate(struct clk_hw *hw,
	92	unsigned long parent_rate)
	93	{
	94	struct s2mps11_clk *s2mps11 = to_s2mps11_clk(hw);
	95	if (s2mps11->enabled)
	96	return 32768;
	97	else
	98	return 0;
	99	}
	100
	101	static struct clk_ops s2mps11_clk_ops = {
	102	.prepare = s2mps11_clk_prepare,
	103	.unprepare = s2mps11_clk_unprepare,
	104	.is_enabled = s2mps11_clk_is_enabled,
	105	.recalc_rate = s2mps11_clk_recalc_rate,
	106	};
	107
	108	static struct clk_init_data s2mps11_clks_init[S2MPS11_CLKS_NUM] = {
	109	[S2MPS11_CLK_AP] = {
	110	.name = "s2mps11_ap",
	111	.ops = &s2mps11_clk_ops,
	112	.flags = CLK_IS_ROOT,
	113	},
	114	[S2MPS11_CLK_CP] = {
	115	.name = "s2mps11_cp",
	116	.ops = &s2mps11_clk_ops,
	117	.flags = CLK_IS_ROOT,
	118	},
	119	[S2MPS11_CLK_BT] = {
	120	.name = "s2mps11_bt",
	121	.ops = &s2mps11_clk_ops,
	122	.flags = CLK_IS_ROOT,
	123	},
	124	};
	125
e8b60a45 KK	126	static struct clk_init_data s2mps14_clks_init[S2MPS11_CLKS_NUM] = {
	127	[S2MPS11_CLK_AP] = {
	128	.name = "s2mps14_ap",
	129	.ops = &s2mps11_clk_ops,
	130	.flags = CLK_IS_ROOT,
	131	},
	132	[S2MPS11_CLK_BT] = {
	133	.name = "s2mps14_bt",
	134	.ops = &s2mps11_clk_ops,
	135	.flags = CLK_IS_ROOT,
	136	},
	137	};
	138
	139	static struct device_node s2mps11_clk_parse_dt(struct platform_device pdev,
	140	struct clk_init_data *clks_init)
7cc560de YSB	141	{
	142	struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
	143	struct device_node *clk_np;
	144	int i;
	145
	146	if (!iodev->dev->of_node)
238e1405	147	return ERR_PTR(-EINVAL);
7cc560de	148
afbd1a0c	149	clk_np = of_get_child_by_name(iodev->dev->of_node, "clocks");
7cc560de YSB	150	if (!clk_np) {
	151	dev_err(&pdev->dev, "could not find clock sub-node\n");
	152	return ERR_PTR(-EINVAL);
	153	}
	154
e8b60a45 KK	155	for (i = 0; i < S2MPS11_CLKS_NUM; i++) {
	156	if (!clks_init[i].name)
	157	continue; /* Skip clocks not present in some devices */
7cc560de	158	of_property_read_string_index(clk_np, "clock-output-names", i,
e8b60a45 KK	159	&clks_init[i].name);
e8b60a45 KK	160	}
7cc560de YSB	161
	162	return clk_np;
	163	}
	164
	165	static int s2mps11_clk_probe(struct platform_device *pdev)
	166	{
	167	struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
	168	struct s2mps11_clk s2mps11_clks, s2mps11_clk;
64d64c35	169	unsigned int s2mps11_reg;
e8b60a45	170	struct clk_init_data *clks_init;
7cc560de YSB	171	int i, ret = 0;
	172	u32 val;
	173
	174	s2mps11_clks = devm_kzalloc(&pdev->dev, sizeof(s2mps11_clk)
	175	S2MPS11_CLKS_NUM, GFP_KERNEL);
	176	if (!s2mps11_clks)
	177	return -ENOMEM;
	178
	179	s2mps11_clk = s2mps11_clks;
	180
7002483c KK	181	clk_table = devm_kzalloc(&pdev->dev, sizeof(struct clk )
	182	S2MPS11_CLKS_NUM, GFP_KERNEL);
	183	if (!clk_table)
	184	return -ENOMEM;
	185
64d64c35 TB	186	switch(platform_get_device_id(pdev)->driver_data) {
	187	case S2MPS11X:
	188	s2mps11_reg = S2MPS11_REG_RTC_CTRL;
e8b60a45 KK	189	clks_init = s2mps11_clks_init;
	190	break;
	191	case S2MPS14X:
	192	s2mps11_reg = S2MPS14_REG_RTCCTRL;
	193	clks_init = s2mps14_clks_init;
64d64c35	194	break;
e8e6b840 TB	195	case S5M8767X:
e8e6b840 TB	196	s2mps11_reg = S5M8767_REG_CTRL1;
e8b60a45	197	clks_init = s2mps11_clks_init;
e8e6b840	198	break;
64d64c35 TB	199	default:
	200	dev_err(&pdev->dev, "Invalid device type\n");
	201	return -EINVAL;
	202	};
	203
e8b60a45 KK	204	/* Store clocks of_node in first element of s2mps11_clks array */
	205	s2mps11_clks->clk_np = s2mps11_clk_parse_dt(pdev, clks_init);
	206	if (IS_ERR(s2mps11_clks->clk_np))
	207	return PTR_ERR(s2mps11_clks->clk_np);
	208
7cc560de	209	for (i = 0; i < S2MPS11_CLKS_NUM; i++, s2mps11_clk++) {
e8b60a45 KK	210	if (!clks_init[i].name)
e8b60a45 KK	211	continue; /* Skip clocks not present in some devices */
7cc560de	212	s2mps11_clk->iodev = iodev;
e8b60a45	213	s2mps11_clk->hw.init = &clks_init[i];
7cc560de	214	s2mps11_clk->mask = 1 << i;
64d64c35	215	s2mps11_clk->reg = s2mps11_reg;
7cc560de	216
1b1ccee1	217	ret = regmap_read(s2mps11_clk->iodev->regmap_pmic,
64d64c35	218	s2mps11_clk->reg, &val);
7cc560de YSB	219	if (ret < 0)
	220	goto err_reg;
	221
	222	s2mps11_clk->enabled = val & s2mps11_clk->mask;
	223
	224	s2mps11_clk->clk = devm_clk_register(&pdev->dev,
	225	&s2mps11_clk->hw);
	226	if (IS_ERR(s2mps11_clk->clk)) {
	227	dev_err(&pdev->dev, "Fail to register : %s\n",
	228	s2mps11_name(s2mps11_clk));
	229	ret = PTR_ERR(s2mps11_clk->clk);
	230	goto err_reg;
	231	}
	232
	233	s2mps11_clk->lookup = devm_kzalloc(&pdev->dev,
	234	sizeof(struct clk_lookup), GFP_KERNEL);
	235	if (!s2mps11_clk->lookup) {
	236	ret = -ENOMEM;
	237	goto err_lup;
	238	}
	239
	240	s2mps11_clk->lookup->con_id = s2mps11_name(s2mps11_clk);
	241	s2mps11_clk->lookup->clk = s2mps11_clk->clk;
	242
	243	clkdev_add(s2mps11_clk->lookup);
	244	}
	245
e8b60a45 KK	246	for (i = 0; i < S2MPS11_CLKS_NUM; i++) {
	247	/* Skip clocks not present on S2MPS14 */
	248	if (!clks_init[i].name)
	249	continue;
7002483c	250	clk_table[i] = s2mps11_clks[i].clk;
e8b60a45	251	}
7cc560de	252
7002483c KK	253	clk_data.clks = clk_table;
	254	clk_data.clk_num = S2MPS11_CLKS_NUM;
	255	of_clk_add_provider(s2mps11_clks->clk_np, of_clk_src_onecell_get,
	256	&clk_data);
7cc560de YSB	257
	258	platform_set_drvdata(pdev, s2mps11_clks);
	259
	260	return ret;
	261	err_lup:
	262	devm_clk_unregister(&pdev->dev, s2mps11_clk->clk);
	263	err_reg:
	264	while (s2mps11_clk > s2mps11_clks) {
	265	if (s2mps11_clk->lookup) {
	266	clkdev_drop(s2mps11_clk->lookup);
	267	devm_clk_unregister(&pdev->dev, s2mps11_clk->clk);
	268	}
	269	s2mps11_clk--;
	270	}
	271
	272	return ret;
	273	}
	274
	275	static int s2mps11_clk_remove(struct platform_device *pdev)
	276	{
	277	struct s2mps11_clk *s2mps11_clks = platform_get_drvdata(pdev);
	278	int i;
	279
bf416bd4 KK	280	of_clk_del_provider(s2mps11_clks[0].clk_np);
	281	/* Drop the reference obtained in s2mps11_clk_parse_dt */
	282	of_node_put(s2mps11_clks[0].clk_np);
	283
e8b60a45 KK	284	for (i = 0; i < S2MPS11_CLKS_NUM; i++) {
	285	/* Skip clocks not present on S2MPS14 */
	286	if (!s2mps11_clks[i].lookup)
	287	continue;
7cc560de	288	clkdev_drop(s2mps11_clks[i].lookup);
e8b60a45	289	}
7cc560de YSB	290
	291	return 0;
	292	}
	293
	294	static const struct platform_device_id s2mps11_clk_id[] = {
64d64c35	295	{ "s2mps11-clk", S2MPS11X},
e8b60a45	296	{ "s2mps14-clk", S2MPS14X},
e8e6b840	297	{ "s5m8767-clk", S5M8767X},
7cc560de YSB	298	{ },
	299	};
	300	MODULE_DEVICE_TABLE(platform, s2mps11_clk_id);
	301
	302	static struct platform_driver s2mps11_clk_driver = {
	303	.driver = {
	304	.name = "s2mps11-clk",
	305	.owner = THIS_MODULE,
	306	},
	307	.probe = s2mps11_clk_probe,
	308	.remove = s2mps11_clk_remove,
	309	.id_table = s2mps11_clk_id,
	310	};
	311
	312	static int __init s2mps11_clk_init(void)
	313	{
	314	return platform_driver_register(&s2mps11_clk_driver);
	315	}
	316	subsys_initcall(s2mps11_clk_init);
	317
	318	static void __init s2mps11_clk_cleanup(void)
	319	{
	320	platform_driver_unregister(&s2mps11_clk_driver);
	321	}
	322	module_exit(s2mps11_clk_cleanup);
	323
	324	MODULE_DESCRIPTION("S2MPS11 Clock Driver");
	325	MODULE_AUTHOR("Yadwinder Singh Brar <yadi.brar@samsung.com>");
	326	MODULE_LICENSE("GPL");