aboutsummaryrefslogtreecommitdiffstats
path: root/net/tipc/socket.c
diff options
context:
space:
mode:
authorArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2008-07-16 10:40:22 -0400
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2008-07-24 06:34:45 -0400
commitc8566350a3229ca505b84313c65d1403b4d0cbfc (patch)
tree156309b71de9779948fdab03a2831b41fe6ca159 /net/tipc/socket.c
parent85c6e6e28259e9b58b8984db536c45bc3161f40c (diff)
UBI: fix and re-work debugging stuff
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'net/tipc/socket.c')
0 files changed, 0 insertions, 0 deletions
n258'>258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498
/*
 * Regulators driver for Dialog Semiconductor DA903x
 *
 * Copyright (C) 2006-2008 Marvell International Ltd.
 * Copyright (C) 2008 Compulab Ltd.
 *
 * 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/kernel.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/da903x.h>

/* DA9030 Registers */
#define DA9030_INVAL		(-1)
#define DA9030_LDO1011		(0x10)
#define DA9030_LDO15		(0x11)
#define DA9030_LDO1416		(0x12)
#define DA9030_LDO1819		(0x13)
#define DA9030_LDO17		(0x14)
#define DA9030_BUCK2DVM1	(0x15)
#define DA9030_BUCK2DVM2	(0x16)
#define DA9030_RCTL11		(0x17)
#define DA9030_RCTL21		(0x18)
#define DA9030_LDO1		(0x90)
#define DA9030_LDO23		(0x91)
#define DA9030_LDO45		(0x92)
#define DA9030_LDO6		(0x93)
#define DA9030_LDO78		(0x94)
#define DA9030_LDO912		(0x95)
#define DA9030_BUCK		(0x96)
#define DA9030_RCTL12		(0x97)
#define DA9030_RCTL22		(0x98)
#define DA9030_LDO_UNLOCK	(0xa0)
#define DA9030_LDO_UNLOCK_MASK	(0xe0)
#define DA9034_OVER1		(0x10)

/* DA9034 Registers */
#define DA9034_INVAL		(-1)
#define DA9034_OVER2		(0x11)
#define DA9034_OVER3		(0x12)
#define DA9034_LDO643		(0x13)
#define DA9034_LDO987		(0x14)
#define DA9034_LDO1110		(0x15)
#define DA9034_LDO1312		(0x16)
#define DA9034_LDO1514		(0x17)
#define DA9034_VCC1		(0x20)
#define DA9034_ADTV1		(0x23)
#define DA9034_ADTV2		(0x24)
#define DA9034_AVRC		(0x25)
#define DA9034_CDTV1		(0x26)
#define DA9034_CDTV2		(0x27)
#define DA9034_CVRC		(0x28)
#define DA9034_SDTV1		(0x29)
#define DA9034_SDTV2		(0x2a)
#define DA9034_SVRC		(0x2b)
#define DA9034_MDTV1		(0x32)
#define DA9034_MDTV2		(0x33)
#define DA9034_MVRC		(0x34)

/* DA9035 Registers. DA9034 Registers are comptabile to DA9035. */
#define DA9035_OVER3		(0x12)
#define DA9035_VCC2		(0x1f)
#define DA9035_3DTV1		(0x2c)
#define DA9035_3DTV2		(0x2d)
#define DA9035_3VRC		(0x2e)
#define DA9035_AUTOSKIP		(0x2f)

struct da903x_regulator_info {
	struct regulator_desc desc;

	int	max_uV;
	int	vol_reg;
	int	vol_shift;
	int	vol_nbits;
	int	update_reg;
	int	update_bit;
	int	enable_reg;
	int	enable_bit;
};

static inline struct device *to_da903x_dev(struct regulator_dev *rdev)
{
	return rdev_get_dev(rdev)->parent->parent;
}

static inline int check_range(struct da903x_regulator_info *info,
				int min_uV, int max_uV)
{
	if (min_uV < info->desc.min_uV || min_uV > info->max_uV)
		return -EINVAL;

	return 0;
}

/* DA9030/DA9034 common operations */
static int da903x_set_voltage_sel(struct regulator_dev *rdev, unsigned selector)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	struct device *da9034_dev = to_da903x_dev(rdev);
	uint8_t val, mask;

	if (rdev->desc->n_voltages == 1)
		return -EINVAL;

	val = selector << info->vol_shift;
	mask = ((1 << info->vol_nbits) - 1)  << info->vol_shift;

	return da903x_update(da9034_dev, info->vol_reg, val, mask);
}

static int da903x_get_voltage_sel(struct regulator_dev *rdev)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	struct device *da9034_dev = to_da903x_dev(rdev);
	uint8_t val, mask;
	int ret;

	if (rdev->desc->n_voltages == 1)
		return 0;

	ret = da903x_read(da9034_dev, info->vol_reg, &val);
	if (ret)
		return ret;

	mask = ((1 << info->vol_nbits) - 1)  << info->vol_shift;
	val = (val & mask) >> info->vol_shift;

	return val;
}

static int da903x_enable(struct regulator_dev *rdev)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	struct device *da9034_dev = to_da903x_dev(rdev);

	return da903x_set_bits(da9034_dev, info->enable_reg,
					1 << info->enable_bit);
}

static int da903x_disable(struct regulator_dev *rdev)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	struct device *da9034_dev = to_da903x_dev(rdev);

	return da903x_clr_bits(da9034_dev, info->enable_reg,
					1 << info->enable_bit);
}

static int da903x_is_enabled(struct regulator_dev *rdev)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	struct device *da9034_dev = to_da903x_dev(rdev);
	uint8_t reg_val;
	int ret;

	ret = da903x_read(da9034_dev, info->enable_reg, &reg_val);
	if (ret)
		return ret;

	return !!(reg_val & (1 << info->enable_bit));
}

/* DA9030 specific operations */
static int da9030_set_ldo1_15_voltage_sel(struct regulator_dev *rdev,
					  unsigned selector)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	struct device *da903x_dev = to_da903x_dev(rdev);
	uint8_t val, mask;
	int ret;

	val = selector << info->vol_shift;
	mask = ((1 << info->vol_nbits) - 1)  << info->vol_shift;
	val |= DA9030_LDO_UNLOCK; /* have to set UNLOCK bits */
	mask |= DA9030_LDO_UNLOCK_MASK;

	/* write twice */
	ret = da903x_update(da903x_dev, info->vol_reg, val, mask);
	if (ret)
		return ret;

	return da903x_update(da903x_dev, info->vol_reg, val, mask);
}

static int da9030_map_ldo14_voltage(struct regulator_dev *rdev,
				    int min_uV, int max_uV)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	int thresh, sel;

	if (check_range(info, min_uV, max_uV)) {
		pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
		return -EINVAL;
	}

	thresh = (info->max_uV + info->desc.min_uV) / 2;
	if (min_uV < thresh) {
		sel = DIV_ROUND_UP(thresh - min_uV, info->desc.uV_step);
		sel |= 0x4;
	} else {
		sel = DIV_ROUND_UP(min_uV - thresh, info->desc.uV_step);
	}

	return sel;
}

static int da9030_list_ldo14_voltage(struct regulator_dev *rdev,
				     unsigned selector)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	int volt;

	if (selector & 0x4)
		volt = rdev->desc->min_uV +
		       rdev->desc->uV_step * (3 - (selector & ~0x4));
	else
		volt = (info->max_uV + rdev->desc->min_uV) / 2 +
		       rdev->desc->uV_step * (selector & ~0x4);

	if (volt > info->max_uV)
		return -EINVAL;

	return volt;
}

/* DA9034 specific operations */
static int da9034_set_dvc_voltage_sel(struct regulator_dev *rdev,
				      unsigned selector)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	struct device *da9034_dev = to_da903x_dev(rdev);
	uint8_t val, mask;
	int ret;

	val = selector << info->vol_shift;
	mask = ((1 << info->vol_nbits) - 1)  << info->vol_shift;

	ret = da903x_update(da9034_dev, info->vol_reg, val, mask);
	if (ret)
		return ret;

	ret = da903x_set_bits(da9034_dev, info->update_reg,
					1 << info->update_bit);
	return ret;
}

static const struct regulator_linear_range da9034_ldo12_ranges[] = {
	REGULATOR_LINEAR_RANGE(1700000, 0, 7, 50000),
	REGULATOR_LINEAR_RANGE(2700000, 8, 15, 50000),
};

static const struct regulator_ops da903x_regulator_ldo_ops = {
	.set_voltage_sel = da903x_set_voltage_sel,
	.get_voltage_sel = da903x_get_voltage_sel,
	.list_voltage	= regulator_list_voltage_linear,
	.map_voltage	= regulator_map_voltage_linear,
	.enable		= da903x_enable,
	.disable	= da903x_disable,
	.is_enabled	= da903x_is_enabled,
};

/* NOTE: this is dedicated for the insane DA9030 LDO14 */
static const struct regulator_ops da9030_regulator_ldo14_ops = {
	.set_voltage_sel = da903x_set_voltage_sel,
	.get_voltage_sel = da903x_get_voltage_sel,
	.list_voltage	= da9030_list_ldo14_voltage,
	.map_voltage	= da9030_map_ldo14_voltage,
	.enable		= da903x_enable,
	.disable	= da903x_disable,
	.is_enabled	= da903x_is_enabled,
};

/* NOTE: this is dedicated for the DA9030 LDO1 and LDO15 that have locks  */
static const struct regulator_ops da9030_regulator_ldo1_15_ops = {
	.set_voltage_sel = da9030_set_ldo1_15_voltage_sel,
	.get_voltage_sel = da903x_get_voltage_sel,
	.list_voltage	= regulator_list_voltage_linear,
	.map_voltage	= regulator_map_voltage_linear,
	.enable		= da903x_enable,
	.disable	= da903x_disable,
	.is_enabled	= da903x_is_enabled,
};

static const struct regulator_ops da9034_regulator_dvc_ops = {
	.set_voltage_sel = da9034_set_dvc_voltage_sel,
	.get_voltage_sel = da903x_get_voltage_sel,
	.list_voltage	= regulator_list_voltage_linear,
	.map_voltage	= regulator_map_voltage_linear,
	.enable		= da903x_enable,
	.disable	= da903x_disable,
	.is_enabled	= da903x_is_enabled,
};

/* NOTE: this is dedicated for the insane LDO12 */
static const struct regulator_ops da9034_regulator_ldo12_ops = {
	.set_voltage_sel = da903x_set_voltage_sel,
	.get_voltage_sel = da903x_get_voltage_sel,
	.list_voltage	= regulator_list_voltage_linear_range,
	.map_voltage	= regulator_map_voltage_linear_range,
	.enable		= da903x_enable,
	.disable	= da903x_disable,
	.is_enabled	= da903x_is_enabled,
};

#define DA903x_LDO(_pmic, _id, min, max, step, vreg, shift, nbits, ereg, ebit)	\
{									\
	.desc	= {							\
		.name	= "LDO" #_id,					\
		.ops	= &da903x_regulator_ldo_ops,			\
		.type	= REGULATOR_VOLTAGE,				\
		.id	= _pmic##_ID_LDO##_id,				\
		.n_voltages = (step) ? ((max - min) / step + 1) : 1,	\
		.owner	= THIS_MODULE,					\
		.min_uV	 = (min) * 1000,				\
		.uV_step = (step) * 1000,				\
	},								\
	.max_uV		= (max) * 1000,					\
	.vol_reg	= _pmic##_##vreg,				\
	.vol_shift	= (shift),					\
	.vol_nbits	= (nbits),					\
	.enable_reg	= _pmic##_##ereg,				\
	.enable_bit	= (ebit),					\
}

#define DA903x_DVC(_pmic, _id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
{									\
	.desc	= {							\
		.name	= #_id,						\
		.ops	= &da9034_regulator_dvc_ops,			\
		.type	= REGULATOR_VOLTAGE,				\
		.id	= _pmic##_ID_##_id,				\
		.n_voltages = (step) ? ((max - min) / step + 1) : 1,	\
		.owner	= THIS_MODULE,					\
		.min_uV = (min) * 1000,					\
		.uV_step = (step) * 1000,				\
	},								\
	.max_uV		= (max) * 1000,					\
	.vol_reg	= _pmic##_##vreg,				\
	.vol_shift	= (0),						\
	.vol_nbits	= (nbits),					\
	.update_reg	= _pmic##_##ureg,				\
	.update_bit	= (ubit),					\
	.enable_reg	= _pmic##_##ereg,				\
	.enable_bit	= (ebit),					\
}

#define DA9034_LDO(_id, min, max, step, vreg, shift, nbits, ereg, ebit)	\
	DA903x_LDO(DA9034, _id, min, max, step, vreg, shift, nbits, ereg, ebit)

#define DA9030_LDO(_id, min, max, step, vreg, shift, nbits, ereg, ebit)	\
	DA903x_LDO(DA9030, _id, min, max, step, vreg, shift, nbits, ereg, ebit)

#define DA9030_DVC(_id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
	DA903x_DVC(DA9030, _id, min, max, step, vreg, nbits, ureg, ubit, \
		   ereg, ebit)

#define DA9034_DVC(_id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
	DA903x_DVC(DA9034, _id, min, max, step, vreg, nbits, ureg, ubit, \
		   ereg, ebit)

#define DA9035_DVC(_id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
	DA903x_DVC(DA9035, _id, min, max, step, vreg, nbits, ureg, ubit, \
		   ereg, ebit)

static struct da903x_regulator_info da903x_regulator_info[] = {
	/* DA9030 */
	DA9030_DVC(BUCK2, 850, 1625, 25, BUCK2DVM1, 5, BUCK2DVM1, 7, RCTL11, 0),

	DA9030_LDO( 1, 1200, 3200, 100,    LDO1, 0, 5, RCTL12, 1),
	DA9030_LDO( 2, 1800, 3200, 100,   LDO23, 0, 4, RCTL12, 2),
	DA9030_LDO( 3, 1800, 3200, 100,   LDO23, 4, 4, RCTL12, 3),
	DA9030_LDO( 4, 1800, 3200, 100,   LDO45, 0, 4, RCTL12, 4),
	DA9030_LDO( 5, 1800, 3200, 100,   LDO45, 4, 4, RCTL12, 5),
	DA9030_LDO( 6, 1800, 3200, 100,    LDO6, 0, 4, RCTL12, 6),
	DA9030_LDO( 7, 1800, 3200, 100,   LDO78, 0, 4, RCTL12, 7),
	DA9030_LDO( 8, 1800, 3200, 100,   LDO78, 4, 4, RCTL22, 0),
	DA9030_LDO( 9, 1800, 3200, 100,  LDO912, 0, 4, RCTL22, 1),
	DA9030_LDO(10, 1800, 3200, 100, LDO1011, 0, 4, RCTL22, 2),