Esempio n. 1
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/*!
 * This function returns the PMIC version in system.
 *
 * @param 	ver	pointer to the pmic_version_t structure
 *
 * @return       This function returns PMIC version.
 */
void pmic_get_revision(pmic_version_t * ver)
{
	int rev_id = 0;
	int rev1 = 0;
	int rev2 = 0;
	int finid = 0;
	int icid = 0;

	ver->id = PMIC_MC13783;
	pmic_read(REG_REVISION, &rev_id);

	rev1 = (rev_id & 0x018) >> 3;
	rev2 = (rev_id & 0x007);
	icid = (rev_id & 0x01C0) >> 6;
	finid = (rev_id & 0x01E00) >> 9;

	/* Ver 0.2 is actually 3.2a.  Report as 3.2 */
	if ((rev1 == 0) && (rev2 == 2)) {
		rev1 = 3;
	}

	if (rev1 == 0 || icid != 2) {
		ver->revision = -1;
		printk(KERN_NOTICE
		       "mc13783: Not detected.\tAccess failed\t!!!\n");
	} else {
		ver->revision = ((rev1 * 10) + rev2);
		printk(KERN_INFO "mc13783 Rev %d.%d FinVer %x detected\n", rev1,
		       rev2, finid);
	}

	return;

}
Esempio n. 2
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/* Test PMIC I/O */
static int dm_test_power_pmic_io(struct unit_test_state *uts)
{
	const char *name = "sandbox_pmic";
	uint8_t out_buffer, in_buffer;
	struct udevice *dev;
	int reg_count, i;

	ut_assertok(pmic_get(name, &dev));

	reg_count = pmic_reg_count(dev);
	ut_asserteq(reg_count, SANDBOX_PMIC_REG_COUNT);

	/*
	 * Test PMIC I/O - write and read a loop counter.
	 * usually we can't write to all PMIC's registers in the real hardware,
	 * but we can to the sandbox pmic.
	 */
	for (i = 0; i < reg_count; i++) {
		out_buffer = i;
		ut_assertok(pmic_write(dev, i, &out_buffer, 1));
		ut_assertok(pmic_read(dev, i, &in_buffer, 1));
		ut_asserteq(out_buffer, in_buffer);
	}

	return 0;
}
Esempio n. 3
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static ssize_t mc13892_store(struct device *dev,
			     struct device_attribute *attr, const char *buf,
			     size_t count)
{
	int reg, value, ret;
	char *p;

	reg = simple_strtoul(buf, NULL, 10);

	p = NULL;
	p = memchr(buf, ' ', count);

	if (p == NULL) {
		pmic_read(reg, &value);
		pr_debug("reg%02d: %06x\n", reg, value);
		return count;
	}

	p += 1;

	value = simple_strtoul(p, NULL, 16);

	ret = pmic_write(reg, value);
	if (ret == 0)
		pr_debug("write reg%02d: %06x\n", reg, value);
	else
		pr_debug("register update failed\n");

	return count;
}
Esempio n. 4
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unsigned int pmic_get_active_events(unsigned int *active_events)
{
	unsigned int count = 0;
	unsigned int faults;
	int bit_set;

	/* Check for any relevant PMIC faults */
	pmic_read(REG_MC34704_FAULTS, &faults);
	faults &= events_enabled;

	/*
	 * Mask all active events, because there is no way to acknowledge
	 * or dismiss them in the PMIC -- they're sticky.
	 */
	events_enabled &= ~faults;

	/* Account for all unmasked faults */
	while (faults) {
		bit_set = ffs(faults) - 1;
		*(active_events + count) = bit_set;
		count++;
		faults ^= (1 << bit_set);
	}
	return count;
}
Esempio n. 5
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static int s2mps11_buck_mode(struct udevice *dev, int op, int *opmode)
{
	unsigned int addr, mode;
	unsigned char val;
	int buck, ret;

	buck = dev->driver_data;
	if (buck < 1 || buck > S2MPS11_BUCK_NUM) {
		pr_err("Wrong buck number: %d\n", buck);
		return -EINVAL;
	}

	addr = s2mps11_buck_ctrl[buck];

	ret = pmic_read(dev->parent, addr, &val, 1);
	if (ret)
		return ret;

	if (op == PMIC_OP_GET) {
		val &= (S2MPS11_BUCK_MODE_MASK << S2MPS11_BUCK_MODE_SHIFT);
		switch (val) {
		case S2MPS11_BUCK_MODE_OFF:
			*opmode = OP_OFF;
			break;
		case S2MPS11_BUCK_MODE_STANDBY:
			*opmode = OP_STANDBY;
			break;
		case S2MPS11_BUCK_MODE_ON:
			*opmode = OP_ON;
			break;
		default:
			return -EINVAL;
		}
		return 0;
	}

	switch (*opmode) {
	case OP_OFF:
		mode = S2MPS11_BUCK_MODE_OFF;
		break;
	case OP_STANDBY:
		mode = S2MPS11_BUCK_MODE_STANDBY;
		break;
	case OP_ON:
		mode = S2MPS11_BUCK_MODE_ON;
		break;
	default:
		pr_err("Wrong mode: %d for buck: %d\n", *opmode, buck);
		return -EINVAL;
	}

	val &= ~(S2MPS11_BUCK_MODE_MASK << S2MPS11_BUCK_MODE_SHIFT);
	val |= mode;
	ret = pmic_write(dev->parent, addr, &val, 1);

	return ret;
}
Esempio n. 6
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static ssize_t pmic_show(struct device *dev,
			    struct device_attribute *attr, char *buf)
{
	int i, value;
	int offset = (REG_TEST4 + 1) / 4;

	for (i = 0; i < offset; i++) {
		pmic_read(i, &value);
		pr_info("reg%02d: %06x\t\t", i, value);
		pmic_read(i + offset, &value);
		pr_info("reg%02d: %06x\t\t", i + offset, value);
		pmic_read(i + offset * 2, &value);
		pr_info("reg%02d: %06x\t\t", i + offset * 2, value);
		pmic_read(i + offset * 3, &value);
		pr_info("reg%02d: %06x\n", i + offset * 3, value);
	}

	return 0;
}
Esempio n. 7
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/*!
 * Get the current version of the Altas part
 */
int get_pmic_revision(void)
{
	int rev_id = 0;
	int finid = 0;

	pmic_read(REG_IDENTIFICATION, &rev_id);
	finid = (rev_id & 0x01E00) >> 9;

	return finid;
}
Esempio n. 8
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static int axp192_usb_online(void)
{
	int ret;
	uint8_t val;
	struct pmic_charger *charger = &pmic_charger;

	ret = pmic_read(charger->master, AXP192_POWER_STATE, &val);
	if (ret < 0)
		return ret;

	return (val >> 5) & 0x01;
}
Esempio n. 9
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static int max77686_buck_val(struct udevice *dev, int op, int *uV)
{
	unsigned int hex, ret, mask, adr;
	unsigned char val;
	int buck;

	buck = dev->driver_data;
	if (buck < 1 || buck > MAX77686_BUCK_NUM) {
		error("Wrong buck number: %d", buck);
		return -EINVAL;
	}

	if (op == PMIC_OP_GET)
		*uV = 0;

	/* &buck_out = ctrl + 1 */
	adr = max77686_buck_addr[buck] + 1;

	/* mask */
	switch (buck) {
	case 2:
	case 3:
	case 4:
		/* Those use voltage scallers - will support in the future */
		mask = MAX77686_BUCK234_VOLT_MASK;
		return -ENOSYS;
	default:
		mask = MAX77686_BUCK_VOLT_MASK;
	}

	ret = pmic_read(dev->parent, adr, &val, 1);
	if (ret)
		return ret;

	if (op == PMIC_OP_GET) {
		val &= mask;
		ret = max77686_buck_hex2volt(buck, val);
		if (ret < 0)
			return ret;
		*uV = ret;
		return 0;
	}

	hex = max77686_buck_volt2hex(buck, *uV);
	if (hex < 0)
		return hex;

	val &= ~mask;
	val |= hex;
	ret = pmic_write(dev->parent, adr, &val, 1);

	return ret;
}
Esempio n. 10
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static int s2mps11_buck_val(struct udevice *dev, int op, int *uV)
{
	int hex, buck, ret;
	u32 mask, addr;
	u8 val;

	buck = dev->driver_data;
	if (buck < 1 || buck > S2MPS11_BUCK_NUM) {
		pr_err("Wrong buck number: %d\n", buck);
		return -EINVAL;
	}

	if (op == PMIC_OP_GET)
		*uV = 0;

	addr = s2mps11_buck_out[buck];

	switch (buck) {
	case 9:
		mask = S2MPS11_BUCK9_VOLT_MASK;
		break;
	default:
		mask = S2MPS11_BUCK_VOLT_MASK;
		break;
	}

	ret = pmic_read(dev->parent, addr, &val, 1);
	if (ret)
		return ret;

	if (op == PMIC_OP_GET) {
		val &= mask;
		ret = s2mps11_buck_hex2volt(buck, val);
		if (ret < 0)
			return ret;
		*uV = ret;
		return 0;
	}

	hex = s2mps11_buck_volt2hex(buck, *uV);
	if (hex < 0)
		return hex;

	val &= ~mask;
	val |= hex;
	ret = pmic_write(dev->parent, addr, &val, 1);

	return ret;
}
Esempio n. 11
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/*!
 * This function is called by PMIC clients to read a register on PMIC.
 *
 * @param        reg        number of register
 * @param        reg_value  return value of register
 * @param        reg_mask   Bitmap mask indicating which bits to modify
 *
 * @return       This function returns PMIC_SUCCESS if successful.
 */
PMIC_STATUS pmic_read_reg(int reg, unsigned int *reg_value,
			  unsigned int reg_mask)
{
	int ret = 0;
	unsigned int temp = 0;

	ret = pmic_read(reg, &temp);
	if (ret != PMIC_SUCCESS) {
		return PMIC_ERROR;
	}
	*reg_value = (temp & reg_mask);

	pr_debug("Read REG[ %d ] = 0x%x\n", reg, *reg_value);

	return ret;
}
Esempio n. 12
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/*!
 * This function returns the PMIC version in system.
 *
 * @param 	ver	pointer to the pmic_version_t structure
 *
 * @return       This function returns PMIC version.
 */
void mc13892_get_revision(pmic_version_t *ver)
{
	int rev_id = 0;
	int rev1 = 0;
	int rev2 = 0;
	int finid = 0;
	int icid = 0;

	ver->id = PMIC_MC13892;
	pmic_read(REG_IDENTIFICATION, &rev_id);

	rev1 = (rev_id & 0x018) >> 3;
	rev2 = (rev_id & 0x007);
	icid = (rev_id & 0x01C0) >> 6;
	finid = (rev_id & 0x01E00) >> 9;

	ver->revision = ((rev1 * 10) + rev2);
	printk(KERN_INFO "mc13892 Rev %d.%d FinVer %x detected\n", rev1,
	       rev2, finid);
}
Esempio n. 13
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static int max77686_ldo_val(struct udevice *dev, int op, int *uV)
{
	unsigned int ret, hex, adr;
	unsigned char val;
	int ldo;

	if (op == PMIC_OP_GET)
		*uV = 0;

	ldo = dev->driver_data;
	if (ldo < 1 || ldo > MAX77686_LDO_NUM) {
		error("Wrong ldo number: %d", ldo);
		return -EINVAL;
	}

	adr = MAX77686_REG_PMIC_LDO1CTRL1 + ldo - 1;

	ret = pmic_read(dev->parent, adr, &val, 1);
	if (ret)
		return ret;

	if (op == PMIC_OP_GET) {
		val &= MAX77686_LDO_VOLT_MASK;
		ret = max77686_ldo_hex2volt(ldo, val);
		if (ret < 0)
			return ret;
		*uV = ret;
		return 0;
	}

	hex = max77686_ldo_volt2hex(ldo, *uV);
	if (hex < 0)
		return hex;

	val &= ~MAX77686_LDO_VOLT_MASK;
	val |= hex;
	ret = pmic_write(dev->parent, adr, &val, 1);

	return ret;
}
Esempio n. 14
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static int max77686_buck_mode(struct udevice *dev, int op, int *opmode)
{
	unsigned int ret, mask, adr, mode, mode_shift;
	unsigned char val;
	int buck;

	buck = dev->driver_data;
	if (buck < 1 || buck > MAX77686_BUCK_NUM) {
		error("Wrong buck number: %d", buck);
		return -EINVAL;
	}

	adr = max77686_buck_addr[buck];

	/* mask */
	switch (buck) {
	case 2:
	case 3:
	case 4:
		mode_shift = MAX77686_BUCK_MODE_SHIFT_2;
		break;
	default:
		mode_shift = MAX77686_BUCK_MODE_SHIFT_1;
	}

	mask = MAX77686_BUCK_MODE_MASK << mode_shift;

	ret = pmic_read(dev->parent, adr, &val, 1);
	if (ret)
		return ret;

	if (op == PMIC_OP_GET) {
		val &= mask;
		val >>= mode_shift;
		ret = max77686_buck_hex2mode(buck, val);
		if (ret < 0)
			return ret;
		*opmode = ret;
		return 0;
	}
Esempio n. 15
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static int s2mps11_ldo_val(struct udevice *dev, int op, int *uV)
{
	unsigned int addr;
	unsigned char val;
	int hex, ldo, ret;

	ldo = dev->driver_data;
	if (ldo < 1 || ldo > S2MPS11_LDO_NUM) {
		pr_err("Wrong ldo number: %d\n", ldo);
		return -EINVAL;
	}

	addr = S2MPS11_REG_L1CTRL + ldo - 1;

	ret = pmic_read(dev->parent, addr, &val, 1);
	if (ret)
		return ret;

	if (op == PMIC_OP_GET) {
		*uV = 0;
		val &= S2MPS11_LDO_VOLT_MASK;
		ret = s2mps11_ldo_hex2volt(ldo, val);
		if (ret < 0)
			return ret;

		*uV = ret;
		return 0;
	}

	hex = s2mps11_ldo_volt2hex(ldo, *uV);
	if (hex < 0)
		return hex;

	val &= ~S2MPS11_LDO_VOLT_MASK;
	val |= hex;
	ret = pmic_write(dev->parent, addr, &val, 1);

	return ret;
}
Esempio n. 16
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/*!
 * This function is called by PMIC clients to write a register on PMIC.
 *
 * @param        reg        number of register
 * @param        reg_value  New value of register
 * @param        reg_mask   Bitmap mask indicating which bits to modify
 *
 * @return       This function returns PMIC_SUCCESS if successful.
 */
PMIC_STATUS pmic_write_reg(int reg, unsigned int reg_value,
			   unsigned int reg_mask)
{
	int ret = 0;
	unsigned int temp = 0;

	ret = pmic_read(reg, &temp);
	if (ret != PMIC_SUCCESS) {
		return PMIC_ERROR;
	}
	temp = (temp & (~reg_mask)) | reg_value;
#ifdef CONFIG_MXC_PMIC_MC13783
	if (reg == REG_POWER_MISCELLANEOUS)
		temp &= 0xFFFE7FFF;
#endif
	ret = pmic_write(reg, temp);
	if (ret != PMIC_SUCCESS) {
		return PMIC_ERROR;
	}

	pr_debug("Write REG[ %d ] = 0x%x\n", reg, reg_value);

	return ret;
}
Esempio n. 17
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static int s2mps11_ldo_mode(struct udevice *dev, int op, int *opmode)
{
	unsigned int addr, mode;
	unsigned char val;
	int ldo, ret;

	ldo = dev->driver_data;
	if (ldo < 1 || ldo > S2MPS11_LDO_NUM) {
		pr_err("Wrong ldo number: %d\n", ldo);
		return -EINVAL;
	}
	addr = S2MPS11_REG_L1CTRL + ldo - 1;

	ret = pmic_read(dev->parent, addr, &val, 1);
	if (ret)
		return ret;

	if (op == PMIC_OP_GET) {
		val &= (S2MPS11_LDO_MODE_MASK << S2MPS11_LDO_MODE_SHIFT);
		switch (val) {
		case S2MPS11_LDO_MODE_OFF:
			*opmode = OP_OFF;
			break;
		case S2MPS11_LDO_MODE_STANDBY:
			*opmode = OP_STANDBY;
			break;
		case S2MPS11_LDO_MODE_STANDBY_LPM:
			*opmode = OP_STANDBY_LPM;
			break;
		case S2MPS11_LDO_MODE_ON:
			*opmode = OP_ON;
			break;
		default:
			return -EINVAL;
		}
		return 0;
	}

	switch (*opmode) {
	case OP_OFF:
		mode = S2MPS11_LDO_MODE_OFF;
		break;
	case OP_STANDBY:
		mode = S2MPS11_LDO_MODE_STANDBY;
		break;
	case OP_STANDBY_LPM:
		mode = S2MPS11_LDO_MODE_STANDBY_LPM;
		break;
	case OP_ON:
		mode = S2MPS11_LDO_MODE_ON;
		break;
	default:
		pr_err("Wrong mode: %d for ldo: %d\n", *opmode, ldo);
		return -EINVAL;
	}

	val &= ~(S2MPS11_LDO_MODE_MASK << S2MPS11_LDO_MODE_SHIFT);
	val |= mode;
	ret = pmic_write(dev->parent, addr, &val, 1);

	return ret;
}
Esempio n. 18
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static int max77686_ldo_mode(struct udevice *dev, int op, int *opmode)
{
	unsigned int ret, adr, mode;
	unsigned char val;
	int ldo;

	if (op == PMIC_OP_GET)
		*opmode = -EINVAL;

	ldo = dev->driver_data;
	if (ldo < 1 || ldo > MAX77686_LDO_NUM) {
		error("Wrong ldo number: %d", ldo);
		return -EINVAL;
	}

	adr = MAX77686_REG_PMIC_LDO1CTRL1 + ldo - 1;

	ret = pmic_read(dev->parent, adr, &val, 1);
	if (ret)
		return ret;

	if (op == PMIC_OP_GET) {
		val &= MAX77686_LDO_MODE_MASK;
		ret = max77686_ldo_hex2mode(ldo, val);
		if (ret < 0)
			return ret;
		*opmode = ret;
		return 0;
	}

	/* mode */
	switch (*opmode) {
	case OPMODE_OFF:
		mode = MAX77686_LDO_MODE_OFF;
		break;
	case OPMODE_LPM:
		switch (ldo) {
		case 2:
		case 6:
		case 7:
		case 8:
		case 10:
		case 11:
		case 12:
		case 14:
		case 15:
		case 16:
			return -EINVAL;
		default:
			mode = MAX77686_LDO_MODE_LPM;
		}
		break;
	case OPMODE_STANDBY:
		switch (ldo) {
		case 2:
		case 6:
		case 7:
		case 8:
		case 10:
		case 11:
		case 12:
		case 14:
		case 15:
		case 16:
			mode = MAX77686_LDO_MODE_STANDBY;
			break;
		default:
			return -EINVAL;
		}
		break;
	case OPMODE_STANDBY_LPM:
		mode = MAX77686_LDO_MODE_STANDBY_LPM;
		break;
	case OPMODE_ON:
		mode = MAX77686_LDO_MODE_ON;
		break;
	default:
		mode = 0xff;
	}

	if (mode == 0xff) {
		error("Wrong mode: %d for ldo%d", *opmode, ldo);
		return -EINVAL;
	}

	val &= ~MAX77686_LDO_MODE_MASK;
	val |= mode;
	ret = pmic_write(dev->parent, adr, &val, 1);

	return ret;
}