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mfd: 88pm860x: Avoid to check resource for preg regulator 

Since PREG regulator is the only one regulator in 88PM8606, and other
regulators are in 88PM8607. Checking resource as identifying regulator
is not a good way. We can use NULL resource to indentify PREG regulator.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Haojian Zhuang 2012-09-17 12:19:07 +08:00 committed by Samuel Ortiz
parent e7a7810ae0
commit ff13e9e256
2 changed files with 20 additions and 20 deletions
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8
drivers/mfd/88pm860x-core.c
View File

@ -150,10 +150,6 @@ static struct resource charger_resources[] __devinitdata = {
{PM8607_IRQ_VCHG, PM8607_IRQ_VCHG, "vchg voltage", IORESOURCE_IRQ,},
};
static struct resource preg_resources[] __devinitdata = {
{PM8606_ID_PREG, PM8606_ID_PREG, "preg", IORESOURCE_REG,},
};
static struct resource rtc_resources[] __devinitdata = {
{PM8607_IRQ_RTC, PM8607_IRQ_RTC, "rtc", IORESOURCE_IRQ,},
};
@ -960,10 +956,8 @@ static void __devinit device_power_init(struct pm860x_chip *chip,
power_devs[2].platform_data = &preg_init_data;
power_devs[2].pdata_size = sizeof(struct regulator_init_data);
power_devs[2].num_resources = ARRAY_SIZE(preg_resources);
power_devs[2].resources = &preg_resources[0],
ret = mfd_add_devices(chip->dev, 0, &power_devs[2], 1,
&preg_resources[0], chip->irq_base, NULL);
NULL, chip->irq_base, NULL);
if (ret < 0)
dev_err(chip->dev, "Failed to add preg subdev\n");
}

32
drivers/regulator/88pm8607.c
View File

@ -358,7 +358,9 @@ static struct pm8607_regulator_info pm8607_regulator_info[] = {
PM8607_LDO(12, LDO12, 0, SUPPLIES_EN12, 5),
PM8607_LDO(13, VIBRATOR_SET, 1, VIBRATOR_SET, 0),
PM8607_LDO(14, LDO14, 0, SUPPLIES_EN12, 6),
};
static struct pm8607_regulator_info pm8606_regulator_info[] = {
PM8606_PREG(PREREGULATORB, 5),
};
@ -372,19 +374,23 @@ static int __devinit pm8607_regulator_probe(struct platform_device *pdev)
int i;
res = platform_get_resource(pdev, IORESOURCE_REG, 0);
if (res == NULL) {
dev_err(&pdev->dev, "No REG resource!\n");
return -EINVAL;
}
for (i = 0; i < ARRAY_SIZE(pm8607_regulator_info); i++) {
info = &pm8607_regulator_info[i];
if (info->desc.vsel_reg == res->start)
break;
}
if (i == ARRAY_SIZE(pm8607_regulator_info)) {
dev_err(&pdev->dev, "Failed to find regulator %llu\n",
(unsigned long long)res->start);
return -EINVAL;
if (res) {
/* There're resources in 88PM8607 regulator driver */
for (i = 0; i < ARRAY_SIZE(pm8607_regulator_info); i++) {
info = &pm8607_regulator_info[i];
if (info->desc.vsel_reg == res->start)
break;
}
if (i == ARRAY_SIZE(pm8607_regulator_info)) {
dev_err(&pdev->dev, "Failed to find regulator %llu\n",
(unsigned long long)res->start);
return -EINVAL;
}
} else {
/* There's no resource in 88PM8606 PREG regulator driver */
info = &pm8606_regulator_info[0];
/* i is used to check regulator ID */
i = -1;
}
info->i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
info->i2c_8606 = (chip->id == CHIP_PM8607) ? chip->companion :