[deliverable/linux.git] / drivers / mfd / twl4030-power.c

/*
 * linux/drivers/i2c/chips/twl4030-power.c
 *
 * Handle TWL4030 Power initialization
 *
 * Copyright (C) 2008 Nokia Corporation
 * Copyright (C) 2006 Texas Instruments, Inc
 *
 * Written by 	Kalle Jokiniemi
 *		Peter De Schrijver <peter.de-schrijver@nokia.com>
 * Several fixes by Amit Kucheria <amit.kucheria@verdurent.com>
 *
 * This file is subject to the terms and conditions of the GNU General
 * Public License. See the file "COPYING" in the main directory of this
 * archive for more details.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <linux/module.h>
#include <linux/pm.h>
#include <linux/i2c/twl4030.h>
#include <linux/platform_device.h>

#include <asm/mach-types.h>

static u8 twl4030_start_script_address = 0x2b;

#define PWR_P1_SW_EVENTS	0x10
#define PWR_DEVOFF	(1<<0)

#define PHY_TO_OFF_PM_MASTER(p)		(p - 0x36)
#define PHY_TO_OFF_PM_RECEIVER(p)	(p - 0x5b)

/* resource - hfclk */
#define R_HFCLKOUT_DEV_GRP 	PHY_TO_OFF_PM_RECEIVER(0xe6)

/* PM events */
#define R_P1_SW_EVENTS		PHY_TO_OFF_PM_MASTER(0x46)
#define R_P2_SW_EVENTS		PHY_TO_OFF_PM_MASTER(0x47)
#define R_P3_SW_EVENTS		PHY_TO_OFF_PM_MASTER(0x48)
#define R_CFG_P1_TRANSITION	PHY_TO_OFF_PM_MASTER(0x36)
#define R_CFG_P2_TRANSITION	PHY_TO_OFF_PM_MASTER(0x37)
#define R_CFG_P3_TRANSITION	PHY_TO_OFF_PM_MASTER(0x38)

#define LVL_WAKEUP	0x08

#define ENABLE_WARMRESET (1<<4)

#define END_OF_SCRIPT		0x3f

#define R_SEQ_ADD_A2S		PHY_TO_OFF_PM_MASTER(0x55)
#define R_SEQ_ADD_S2A12		PHY_TO_OFF_PM_MASTER(0x56)
#define	R_SEQ_ADD_S2A3		PHY_TO_OFF_PM_MASTER(0x57)
#define	R_SEQ_ADD_WARM		PHY_TO_OFF_PM_MASTER(0x58)
#define R_MEMORY_ADDRESS	PHY_TO_OFF_PM_MASTER(0x59)
#define R_MEMORY_DATA		PHY_TO_OFF_PM_MASTER(0x5a)

#define R_PROTECT_KEY		0x0E
#define R_KEY_1			0xC0
#define R_KEY_2			0x0C

/* resource configuration registers
   <RESOURCE>_DEV_GRP   at address 'n+0'
   <RESOURCE>_TYPE      at address 'n+1'
   <RESOURCE>_REMAP     at address 'n+2'
   <RESOURCE>_DEDICATED at address 'n+3'
*/
#define DEV_GRP_OFFSET		0
#define TYPE_OFFSET		1

/* Bit positions in the registers */

/* <RESOURCE>_DEV_GRP */
#define DEV_GRP_SHIFT		5
#define DEV_GRP_MASK		(7 << DEV_GRP_SHIFT)

/* <RESOURCE>_TYPE */
#define TYPE_SHIFT		0
#define TYPE_MASK		(7 << TYPE_SHIFT)
#define TYPE2_SHIFT		3
#define TYPE2_MASK		(3 << TYPE2_SHIFT)

static u8 res_config_addrs[] = {
	[RES_VAUX1]	= 0x17,
	[RES_VAUX2]	= 0x1b,
	[RES_VAUX3]	= 0x1f,
	[RES_VAUX4]	= 0x23,
	[RES_VMMC1]	= 0x27,
	[RES_VMMC2]	= 0x2b,
	[RES_VPLL1]	= 0x2f,
	[RES_VPLL2]	= 0x33,
	[RES_VSIM]	= 0x37,
	[RES_VDAC]	= 0x3b,
	[RES_VINTANA1]	= 0x3f,
	[RES_VINTANA2]	= 0x43,
	[RES_VINTDIG]	= 0x47,
	[RES_VIO]	= 0x4b,
	[RES_VDD1]	= 0x55,
	[RES_VDD2]	= 0x63,
	[RES_VUSB_1V5]	= 0x71,
	[RES_VUSB_1V8]	= 0x74,
	[RES_VUSB_3V1]	= 0x77,
	[RES_VUSBCP]	= 0x7a,
	[RES_REGEN]	= 0x7f,
	[RES_NRES_PWRON] = 0x82,
	[RES_CLKEN]	= 0x85,
	[RES_SYSEN]	= 0x88,
	[RES_HFCLKOUT]	= 0x8b,
	[RES_32KCLKOUT]	= 0x8e,
	[RES_RESET]	= 0x91,
	[RES_Main_Ref]	= 0x94,
};

static int __init twl4030_write_script_byte(u8 address, u8 byte)
{
	int err;

	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address,
				R_MEMORY_ADDRESS);
	if (err)
		goto out;
	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, byte,
				R_MEMORY_DATA);
out:
	return err;
}

static int __init twl4030_write_script_ins(u8 address, u16 pmb_message,
					   u8 delay, u8 next)
{
	int err;

	address *= 4;
	err = twl4030_write_script_byte(address++, pmb_message >> 8);
	if (err)
		goto out;
	err = twl4030_write_script_byte(address++, pmb_message & 0xff);
	if (err)
		goto out;
	err = twl4030_write_script_byte(address++, delay);
	if (err)
		goto out;
	err = twl4030_write_script_byte(address++, next);
out:
	return err;
}

static int __init twl4030_write_script(u8 address, struct twl4030_ins *script,
				       int len)
{
	int err;

	for (; len; len--, address++, script++) {
		if (len == 1) {
			err = twl4030_write_script_ins(address,
						script->pmb_message,
						script->delay,
						END_OF_SCRIPT);
			if (err)
				break;
		} else {
			err = twl4030_write_script_ins(address,
						script->pmb_message,
						script->delay,
						address + 1);
			if (err)
				break;
		}
	}
	return err;
}

static int __init twl4030_config_wakeup3_sequence(u8 address)
{
	int err;
	u8 data;

	/* Set SLEEP to ACTIVE SEQ address for P3 */
	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address,
				R_SEQ_ADD_S2A3);
	if (err)
		goto out;

	/* P3 LVL_WAKEUP should be on LEVEL */
	err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &data,
				R_P3_SW_EVENTS);
	if (err)
		goto out;
	data |= LVL_WAKEUP;
	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, data,
				R_P3_SW_EVENTS);
out:
	if (err)
		pr_err("TWL4030 wakeup sequence for P3 config error\n");
	return err;
}

static int __init twl4030_config_wakeup12_sequence(u8 address)
{
	int err = 0;
	u8 data;

	/* Set SLEEP to ACTIVE SEQ address for P1 and P2 */
	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address,
				R_SEQ_ADD_S2A12);
	if (err)
		goto out;

	/* P1/P2 LVL_WAKEUP should be on LEVEL */
	err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &data,
				R_P1_SW_EVENTS);
	if (err)
		goto out;

	data |= LVL_WAKEUP;
	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, data,
				R_P1_SW_EVENTS);
	if (err)
		goto out;

	err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &data,
				R_P2_SW_EVENTS);
	if (err)
		goto out;

	data |= LVL_WAKEUP;
	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, data,
				R_P2_SW_EVENTS);
	if (err)
		goto out;

	if (machine_is_omap_3430sdp() || machine_is_omap_ldp()) {
		/* Disabling AC charger effect on sleep-active transitions */
		err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &data,
					R_CFG_P1_TRANSITION);
		if (err)
			goto out;
		data &= ~(1<<1);
		err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, data ,
					R_CFG_P1_TRANSITION);
		if (err)
			goto out;
	}

out:
	if (err)
		pr_err("TWL4030 wakeup sequence for P1 and P2" \
			"config error\n");
	return err;
}

static int __init twl4030_config_sleep_sequence(u8 address)
{
	int err;

	/* Set ACTIVE to SLEEP SEQ address in T2 memory*/
	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address,
				R_SEQ_ADD_A2S);

	if (err)
		pr_err("TWL4030 sleep sequence config error\n");

	return err;
}

static int __init twl4030_config_warmreset_sequence(u8 address)
{
	int err;
	u8 rd_data;

	/* Set WARM RESET SEQ address for P1 */
	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address,
				R_SEQ_ADD_WARM);
	if (err)
		goto out;

	/* P1/P2/P3 enable WARMRESET */
	err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &rd_data,
				R_P1_SW_EVENTS);
	if (err)
		goto out;

	rd_data |= ENABLE_WARMRESET;
	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, rd_data,
				R_P1_SW_EVENTS);
	if (err)
		goto out;

	err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &rd_data,
				R_P2_SW_EVENTS);
	if (err)
		goto out;

	rd_data |= ENABLE_WARMRESET;
	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, rd_data,
				R_P2_SW_EVENTS);
	if (err)
		goto out;

	err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &rd_data,
				R_P3_SW_EVENTS);
	if (err)
		goto out;

	rd_data |= ENABLE_WARMRESET;
	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, rd_data,
				R_P3_SW_EVENTS);
out:
	if (err)
		pr_err("TWL4030 warmreset seq config error\n");
	return err;
}

static int __init twl4030_configure_resource(struct twl4030_resconfig *rconfig)
{
	int rconfig_addr;
	int err;
	u8 type;
	u8 grp;

	if (rconfig->resource > TOTAL_RESOURCES) {
		pr_err("TWL4030 Resource %d does not exist\n",
			rconfig->resource);
		return -EINVAL;
	}

	rconfig_addr = res_config_addrs[rconfig->resource];

	/* Set resource group */
	err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_RECEIVER, &grp,
				rconfig_addr + DEV_GRP_OFFSET);
	if (err) {
		pr_err("TWL4030 Resource %d group could not be read\n",
			rconfig->resource);
		return err;
	}

	if (rconfig->devgroup >= 0) {
		grp &= ~DEV_GRP_MASK;
		grp |= rconfig->devgroup << DEV_GRP_SHIFT;
		err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
					grp, rconfig_addr + DEV_GRP_OFFSET);
		if (err < 0) {
			pr_err("TWL4030 failed to program devgroup\n");
			return err;
		}
	}

	/* Set resource types */
	err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_RECEIVER, &type,
				rconfig_addr + TYPE_OFFSET);
	if (err < 0) {
		pr_err("TWL4030 Resource %d type could not be read\n",
			rconfig->resource);
		return err;
	}

	if (rconfig->type >= 0) {
		type &= ~TYPE_MASK;
		type |= rconfig->type << TYPE_SHIFT;
	}

	if (rconfig->type2 >= 0) {
		type &= ~TYPE2_MASK;
		type |= rconfig->type2 << TYPE2_SHIFT;
	}

	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
				type, rconfig_addr + TYPE_OFFSET);
	if (err < 0) {
		pr_err("TWL4030 failed to program resource type\n");
		return err;
	}

	return 0;
}

static int __init load_twl4030_script(struct twl4030_script *tscript,
	       u8 address)
{
	int err;
	static int order;

	/* Make sure the script isn't going beyond last valid address (0x3f) */
	if ((address + tscript->size) > END_OF_SCRIPT) {
		pr_err("TWL4030 scripts too big error\n");
		return -EINVAL;
	}

	err = twl4030_write_script(address, tscript->script, tscript->size);
	if (err)
		goto out;

	if (tscript->flags & TWL4030_WRST_SCRIPT) {
		err = twl4030_config_warmreset_sequence(address);
		if (err)
			goto out;
	}
	if (tscript->flags & TWL4030_WAKEUP12_SCRIPT) {
		err = twl4030_config_wakeup12_sequence(address);
		if (err)
			goto out;
		order = 1;
	}
	if (tscript->flags & TWL4030_WAKEUP3_SCRIPT) {
		err = twl4030_config_wakeup3_sequence(address);
		if (err)
			goto out;
	}
	if (tscript->flags & TWL4030_SLEEP_SCRIPT)
		if (order)
			pr_warning("TWL4030: Bad order of scripts (sleep "\
					"script before wakeup) Leads to boot"\
					"failure on some boards\n");
		err = twl4030_config_sleep_sequence(address);
out:
	return err;
}

void __init twl4030_power_init(struct twl4030_power_data *twl4030_scripts)
{
	int err = 0;
	int i;
	struct twl4030_resconfig *resconfig;
	u8 address = twl4030_start_script_address;

	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, R_KEY_1,
				R_PROTECT_KEY);
	if (err)
		goto unlock;

	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, R_KEY_2,
				R_PROTECT_KEY);
	if (err)
		goto unlock;

	for (i = 0; i < twl4030_scripts->num; i++) {
		err = load_twl4030_script(twl4030_scripts->scripts[i], address);
		if (err)
			goto load;
		address += twl4030_scripts->scripts[i]->size;
	}

	resconfig = twl4030_scripts->resource_config;
	if (resconfig) {
		while (resconfig->resource) {
			err = twl4030_configure_resource(resconfig);
			if (err)
				goto resource;
			resconfig++;

		}
	}

	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0, R_PROTECT_KEY);
	if (err)
		pr_err("TWL4030 Unable to relock registers\n");
	return;

unlock:
	if (err)
		pr_err("TWL4030 Unable to unlock registers\n");
	return;
load:
	if (err)
		pr_err("TWL4030 failed to load scripts\n");
	return;
resource:
	if (err)
		pr_err("TWL4030 failed to configure resource\n");
	return;
}
Commit	Line	Data
ebf0bd36 AK	1	/*
	2	* linux/drivers/i2c/chips/twl4030-power.c
	3	*
	4	* Handle TWL4030 Power initialization
	5	*
	6	* Copyright (C) 2008 Nokia Corporation
	7	* Copyright (C) 2006 Texas Instruments, Inc
	8	*
	9	* Written by Kalle Jokiniemi
	10	* Peter De Schrijver <peter.de-schrijver@nokia.com>
	11	* Several fixes by Amit Kucheria <amit.kucheria@verdurent.com>
	12	*
	13	* This file is subject to the terms and conditions of the GNU General
	14	* Public License. See the file "COPYING" in the main directory of this
	15	* archive for more details.
	16	*
	17	* This program is distributed in the hope that it will be useful,
	18	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	20	* GNU General Public License for more details.
	21	*
	22	* You should have received a copy of the GNU General Public License
	23	* along with this program; if not, write to the Free Software
	24	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	25	*/
	26
	27	#include <linux/module.h>
	28	#include <linux/pm.h>
	29	#include <linux/i2c/twl4030.h>
	30	#include <linux/platform_device.h>
	31
	32	#include <asm/mach-types.h>
	33
	34	static u8 twl4030_start_script_address = 0x2b;
	35
	36	#define PWR_P1_SW_EVENTS 0x10
	37	#define PWR_DEVOFF (1<<0)
	38
	39	#define PHY_TO_OFF_PM_MASTER(p) (p - 0x36)
	40	#define PHY_TO_OFF_PM_RECEIVER(p) (p - 0x5b)
	41
	42	/* resource - hfclk */
	43	#define R_HFCLKOUT_DEV_GRP PHY_TO_OFF_PM_RECEIVER(0xe6)
	44
	45	/* PM events */
	46	#define R_P1_SW_EVENTS PHY_TO_OFF_PM_MASTER(0x46)
	47	#define R_P2_SW_EVENTS PHY_TO_OFF_PM_MASTER(0x47)
	48	#define R_P3_SW_EVENTS PHY_TO_OFF_PM_MASTER(0x48)
	49	#define R_CFG_P1_TRANSITION PHY_TO_OFF_PM_MASTER(0x36)
	50	#define R_CFG_P2_TRANSITION PHY_TO_OFF_PM_MASTER(0x37)
	51	#define R_CFG_P3_TRANSITION PHY_TO_OFF_PM_MASTER(0x38)
	52
	53	#define LVL_WAKEUP 0x08
	54
	55	#define ENABLE_WARMRESET (1<<4)
	56
	57	#define END_OF_SCRIPT 0x3f
	58
	59	#define R_SEQ_ADD_A2S PHY_TO_OFF_PM_MASTER(0x55)
	60	#define R_SEQ_ADD_S2A12 PHY_TO_OFF_PM_MASTER(0x56)
	61	#define R_SEQ_ADD_S2A3 PHY_TO_OFF_PM_MASTER(0x57)
	62	#define R_SEQ_ADD_WARM PHY_TO_OFF_PM_MASTER(0x58)
	63	#define R_MEMORY_ADDRESS PHY_TO_OFF_PM_MASTER(0x59)
	64	#define R_MEMORY_DATA PHY_TO_OFF_PM_MASTER(0x5a)
65
66	#define R_PROTECT_KEY 0x0E
c8269331 SO	67	#define R_KEY_1 0xC0
c8269331 SO	68	#define R_KEY_2 0x0C
ebf0bd36	69
890463f0 AK	70	/* resource configuration registers
	71	<RESOURCE>_DEV_GRP at address 'n+0'
	72	<RESOURCE>_TYPE at address 'n+1'
	73	<RESOURCE>_REMAP at address 'n+2'
	74	<RESOURCE>_DEDICATED at address 'n+3'
	75	*/
e97d1546	76	#define DEV_GRP_OFFSET 0
ebf0bd36 AK	77	#define TYPE_OFFSET 1
ebf0bd36 AK	78
e97d1546	79	/* Bit positions in the registers */
890463f0 AK	80
890463f0 AK	81	/* <RESOURCE>_DEV_GRP */
e97d1546 AK	82	#define DEV_GRP_SHIFT 5
e97d1546 AK	83	#define DEV_GRP_MASK (7 << DEV_GRP_SHIFT)
890463f0 AK	84
890463f0 AK	85	/* <RESOURCE>_TYPE */
ebf0bd36 AK	86	#define TYPE_SHIFT 0
	87	#define TYPE_MASK (7 << TYPE_SHIFT)
	88	#define TYPE2_SHIFT 3
	89	#define TYPE2_MASK (3 << TYPE2_SHIFT)
	90
	91	static u8 res_config_addrs[] = {
	92	[RES_VAUX1] = 0x17,
	93	[RES_VAUX2] = 0x1b,
	94	[RES_VAUX3] = 0x1f,
	95	[RES_VAUX4] = 0x23,
	96	[RES_VMMC1] = 0x27,
	97	[RES_VMMC2] = 0x2b,
	98	[RES_VPLL1] = 0x2f,
	99	[RES_VPLL2] = 0x33,
	100	[RES_VSIM] = 0x37,
	101	[RES_VDAC] = 0x3b,
	102	[RES_VINTANA1] = 0x3f,
	103	[RES_VINTANA2] = 0x43,
	104	[RES_VINTDIG] = 0x47,
	105	[RES_VIO] = 0x4b,
	106	[RES_VDD1] = 0x55,
	107	[RES_VDD2] = 0x63,
	108	[RES_VUSB_1V5] = 0x71,
	109	[RES_VUSB_1V8] = 0x74,
	110	[RES_VUSB_3V1] = 0x77,
	111	[RES_VUSBCP] = 0x7a,
	112	[RES_REGEN] = 0x7f,
	113	[RES_NRES_PWRON] = 0x82,
	114	[RES_CLKEN] = 0x85,
	115	[RES_SYSEN] = 0x88,
	116	[RES_HFCLKOUT] = 0x8b,
	117	[RES_32KCLKOUT] = 0x8e,
	118	[RES_RESET] = 0x91,
	119	[RES_Main_Ref] = 0x94,
	120	};
	121
	122	static int __init twl4030_write_script_byte(u8 address, u8 byte)
	123	{
	124	int err;
	125
	126	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address,
	127	R_MEMORY_ADDRESS);
	128	if (err)
	129	goto out;
	130	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, byte,
	131	R_MEMORY_DATA);
	132	out:
	133	return err;
	134	}
	135
	136	static int __init twl4030_write_script_ins(u8 address, u16 pmb_message,
	137	u8 delay, u8 next)
	138	{
	139	int err;
	140
	141	address *= 4;
	142	err = twl4030_write_script_byte(address++, pmb_message >> 8);
	143	if (err)
	144	goto out;
	145	err = twl4030_write_script_byte(address++, pmb_message & 0xff);
	146	if (err)
	147	goto out;
	148	err = twl4030_write_script_byte(address++, delay);
	149	if (err)
150	goto out;
151	err = twl4030_write_script_byte(address++, next);
152	out:
153	return err;
154	}
155
156	static int __init twl4030_write_script(u8 address, struct twl4030_ins *script,
157	int len)
158	{
159	int err;
160
161	for (; len; len--, address++, script++) {
162	if (len == 1) {
163	err = twl4030_write_script_ins(address,
164	script->pmb_message,
165	script->delay,
166	END_OF_SCRIPT);
167	if (err)
168	break;
169	} else {
170	err = twl4030_write_script_ins(address,
171	script->pmb_message,
172	script->delay,
173	address + 1);
174	if (err)
175	break;
176	}
177	}
178	return err;
179	}
180
181	static int __init twl4030_config_wakeup3_sequence(u8 address)
182	{
183	int err;
184	u8 data;
185
186	/* Set SLEEP to ACTIVE SEQ address for P3 */
187	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address,
188	R_SEQ_ADD_S2A3);
189	if (err)
190	goto out;
191
192	/* P3 LVL_WAKEUP should be on LEVEL */
193	err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &data,
194	R_P3_SW_EVENTS);
195	if (err)
196	goto out;
197	data \|= LVL_WAKEUP;
198	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, data,
199	R_P3_SW_EVENTS);
200	out:
201	if (err)
202	pr_err("TWL4030 wakeup sequence for P3 config error\n");
203	return err;
204	}
205
206	static int __init twl4030_config_wakeup12_sequence(u8 address)
207	{
208	int err = 0;
209	u8 data;
210
211	/* Set SLEEP to ACTIVE SEQ address for P1 and P2 */
212	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address,
213	R_SEQ_ADD_S2A12);
214	if (err)
215	goto out;
216
217	/* P1/P2 LVL_WAKEUP should be on LEVEL */
218	err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &data,
219	R_P1_SW_EVENTS);
220	if (err)
221	goto out;
222
223	data \|= LVL_WAKEUP;
224	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, data,
225	R_P1_SW_EVENTS);
226	if (err)
227	goto out;
228
229	err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &data,
230	R_P2_SW_EVENTS);
231	if (err)
232	goto out;
233
234	data \|= LVL_WAKEUP;
235	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, data,
236	R_P2_SW_EVENTS);
237	if (err)
238	goto out;
239
240	if (machine_is_omap_3430sdp() \|\| machine_is_omap_ldp()) {
241	/* Disabling AC charger effect on sleep-active transitions */
242	err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &data,
243	R_CFG_P1_TRANSITION);
244	if (err)
245	goto out;
246	data &= ~(1<<1);
247	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, data ,
248	R_CFG_P1_TRANSITION);
249	if (err)
250	goto out;
251	}
252
253	out:
254	if (err)
255	pr_err("TWL4030 wakeup sequence for P1 and P2" \
256	"config error\n");
257	return err;
258	}
259
260	static int __init twl4030_config_sleep_sequence(u8 address)
261	{
262	int err;
263
264	/* Set ACTIVE to SLEEP SEQ address in T2 memory*/
265	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address,
266	R_SEQ_ADD_A2S);
267
268	if (err)
269	pr_err("TWL4030 sleep sequence config error\n");
270
271	return err;
272	}
273
274	static int __init twl4030_config_warmreset_sequence(u8 address)
275	{
276	int err;
277	u8 rd_data;
278
279	/* Set WARM RESET SEQ address for P1 */
280	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address,
281	R_SEQ_ADD_WARM);
282	if (err)
283	goto out;
284
285	/* P1/P2/P3 enable WARMRESET */
286	err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &rd_data,
287	R_P1_SW_EVENTS);
288	if (err)
289	goto out;
290
291	rd_data \|= ENABLE_WARMRESET;
292	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, rd_data,
293	R_P1_SW_EVENTS);
294	if (err)
295	goto out;
296
297	err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &rd_data,
298	R_P2_SW_EVENTS);
299	if (err)
300	goto out;
301
302	rd_data \|= ENABLE_WARMRESET;
303	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, rd_data,
304	R_P2_SW_EVENTS);
305	if (err)
306	goto out;
307
308	err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &rd_data,
309	R_P3_SW_EVENTS);
310	if (err)
311	goto out;
312
313	rd_data \|= ENABLE_WARMRESET;
314	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, rd_data,
315	R_P3_SW_EVENTS);
316	out:
317	if (err)
318	pr_err("TWL4030 warmreset seq config error\n");
319	return err;
320	}
321
322	static int __init twl4030_configure_resource(struct twl4030_resconfig *rconfig)
323	{
324	int rconfig_addr;
325	int err;
326	u8 type;
327	u8 grp;
328
329	if (rconfig->resource > TOTAL_RESOURCES) {
330	pr_err("TWL4030 Resource %d does not exist\n",
331	rconfig->resource);
332	return -EINVAL;
333	}
334
335	rconfig_addr = res_config_addrs[rconfig->resource];
336
337	/* Set resource group */
338	err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_RECEIVER, &grp,
e97d1546	339	rconfig_addr + DEV_GRP_OFFSET);
ebf0bd36 AK	340	if (err) {
	341	pr_err("TWL4030 Resource %d group could not be read\n",
	342	rconfig->resource);
	343	return err;
	344	}
	345
	346	if (rconfig->devgroup >= 0) {
e97d1546 AK	347	grp &= ~DEV_GRP_MASK;
e97d1546 AK	348	grp \|= rconfig->devgroup << DEV_GRP_SHIFT;
ebf0bd36	349	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
e97d1546	350	grp, rconfig_addr + DEV_GRP_OFFSET);
ebf0bd36 AK	351	if (err < 0) {
	352	pr_err("TWL4030 failed to program devgroup\n");
	353	return err;
	354	}
	355	}
	356
	357	/* Set resource types */
	358	err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_RECEIVER, &type,
	359	rconfig_addr + TYPE_OFFSET);
	360	if (err < 0) {
	361	pr_err("TWL4030 Resource %d type could not be read\n",
	362	rconfig->resource);
	363	return err;
	364	}
	365
	366	if (rconfig->type >= 0) {
	367	type &= ~TYPE_MASK;
	368	type \|= rconfig->type << TYPE_SHIFT;
	369	}
	370
	371	if (rconfig->type2 >= 0) {
	372	type &= ~TYPE2_MASK;
	373	type \|= rconfig->type2 << TYPE2_SHIFT;
	374	}
	375
	376	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
	377	type, rconfig_addr + TYPE_OFFSET);
	378	if (err < 0) {
	379	pr_err("TWL4030 failed to program resource type\n");
	380	return err;
	381	}
	382
	383	return 0;
	384	}
	385
	386	static int __init load_twl4030_script(struct twl4030_script *tscript,
	387	u8 address)
	388	{
	389	int err;
75a74565	390	static int order;
ebf0bd36 AK	391
	392	/* Make sure the script isn't going beyond last valid address (0x3f) */
	393	if ((address + tscript->size) > END_OF_SCRIPT) {
	394	pr_err("TWL4030 scripts too big error\n");
	395	return -EINVAL;
	396	}
	397
	398	err = twl4030_write_script(address, tscript->script, tscript->size);
	399	if (err)
	400	goto out;
	401
	402	if (tscript->flags & TWL4030_WRST_SCRIPT) {
	403	err = twl4030_config_warmreset_sequence(address);
	404	if (err)
	405	goto out;
	406	}
	407	if (tscript->flags & TWL4030_WAKEUP12_SCRIPT) {
	408	err = twl4030_config_wakeup12_sequence(address);
	409	if (err)
	410	goto out;
75a74565	411	order = 1;
ebf0bd36 AK	412	}
	413	if (tscript->flags & TWL4030_WAKEUP3_SCRIPT) {
	414	err = twl4030_config_wakeup3_sequence(address);
	415	if (err)
	416	goto out;
	417	}
	418	if (tscript->flags & TWL4030_SLEEP_SCRIPT)
75a74565 AK	419	if (order)
	420	pr_warning("TWL4030: Bad order of scripts (sleep "\
	421	"script before wakeup) Leads to boot"\
	422	"failure on some boards\n");
ebf0bd36 AK	423	err = twl4030_config_sleep_sequence(address);
	424	out:
	425	return err;
	426	}
	427
	428	void __init twl4030_power_init(struct twl4030_power_data *twl4030_scripts)
	429	{
	430	int err = 0;
	431	int i;
	432	struct twl4030_resconfig *resconfig;
	433	u8 address = twl4030_start_script_address;
	434
c8269331	435	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, R_KEY_1,
ebf0bd36 AK	436	R_PROTECT_KEY);
	437	if (err)
	438	goto unlock;
	439
c8269331	440	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, R_KEY_2,
ebf0bd36 AK	441	R_PROTECT_KEY);
	442	if (err)
	443	goto unlock;
	444
	445	for (i = 0; i < twl4030_scripts->num; i++) {
	446	err = load_twl4030_script(twl4030_scripts->scripts[i], address);
	447	if (err)
	448	goto load;
	449	address += twl4030_scripts->scripts[i]->size;
	450	}
	451
	452	resconfig = twl4030_scripts->resource_config;
	453	if (resconfig) {
	454	while (resconfig->resource) {
	455	err = twl4030_configure_resource(resconfig);
	456	if (err)
	457	goto resource;
	458	resconfig++;
	459
	460	}
	461	}
	462
	463	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0, R_PROTECT_KEY);
	464	if (err)
	465	pr_err("TWL4030 Unable to relock registers\n");
	466	return;
	467
	468	unlock:
	469	if (err)
	470	pr_err("TWL4030 Unable to unlock registers\n");
	471	return;
	472	load:
	473	if (err)
	474	pr_err("TWL4030 failed to load scripts\n");
	475	return;
	476	resource:
	477	if (err)
	478	pr_err("TWL4030 failed to configure resource\n");
	479	return;
	480	}