diff options
Diffstat (limited to 'drivers/regulator/s2mps11.c')
| -rw-r--r-- | drivers/regulator/s2mps11.c | 75 |
1 files changed, 62 insertions, 13 deletions
diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c index 189038aecbf5..ca66fc56fa58 100644 --- a/drivers/regulator/s2mps11.c +++ b/drivers/regulator/s2mps11.c @@ -25,9 +25,8 @@ #include <linux/mfd/samsung/core.h> #include <linux/mfd/samsung/s2mps11.h> -#define S2MPS11_REGULATOR_CNT ARRAY_SIZE(regulators) - struct s2mps11_info { + unsigned int rdev_num; int ramp_delay2; int ramp_delay34; int ramp_delay5; @@ -343,7 +342,7 @@ static struct regulator_ops s2mps11_buck_ops = { .enable_mask = S2MPS11_ENABLE_MASK \ } -static const struct regulator_desc regulators[] = { +static const struct regulator_desc s2mps11_regulators[] __initconst = { regulator_desc_ldo2(1), regulator_desc_ldo1(2), regulator_desc_ldo1(3), @@ -394,21 +393,62 @@ static const struct regulator_desc regulators[] = { regulator_desc_buck10, }; +/* + * Allocates memory under 'regulators' pointer and copies there array + * of regulator_desc for given device. + * + * Returns number of regulators or negative ERRNO on error. + */ +static int __init +s2mps11_pmic_init_regulators_desc(struct platform_device *pdev, + struct regulator_desc **regulators) +{ + const struct regulator_desc *regulators_init; + enum sec_device_type dev_type; + int rdev_num; + + dev_type = platform_get_device_id(pdev)->driver_data; + switch (dev_type) { + case S2MPS11X: + rdev_num = ARRAY_SIZE(s2mps11_regulators); + regulators_init = s2mps11_regulators; + break; + default: + dev_err(&pdev->dev, "Invalid device type: %u\n", dev_type); + return -EINVAL; + }; + + *regulators = devm_kzalloc(&pdev->dev, + sizeof(**regulators) * rdev_num, GFP_KERNEL); + if (!*regulators) + return -ENOMEM; + + memcpy(*regulators, regulators_init, sizeof(**regulators) * rdev_num); + + return rdev_num; +} + static int s2mps11_pmic_probe(struct platform_device *pdev) { struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent); - struct sec_platform_data *pdata = dev_get_platdata(iodev->dev); - struct of_regulator_match rdata[S2MPS11_REGULATOR_MAX]; + struct sec_platform_data *pdata = iodev->pdata; + struct of_regulator_match *rdata = NULL; struct device_node *reg_np = NULL; struct regulator_config config = { }; struct s2mps11_info *s2mps11; - int i, ret; + int i, ret = 0; + struct regulator_desc *regulators = NULL; + int rdev_num; s2mps11 = devm_kzalloc(&pdev->dev, sizeof(struct s2mps11_info), GFP_KERNEL); if (!s2mps11) return -ENOMEM; + rdev_num = s2mps11_pmic_init_regulators_desc(pdev, ®ulators); + if (rdev_num < 0) + return rdev_num; + if (!iodev->dev->of_node) { if (pdata) { goto common_reg; @@ -419,24 +459,30 @@ static int s2mps11_pmic_probe(struct platform_device *pdev) } } - for (i = 0; i < S2MPS11_REGULATOR_CNT; i++) + rdata = kzalloc(sizeof(*rdata) * rdev_num, GFP_KERNEL); + if (!rdata) + return -ENOMEM; + + for (i = 0; i < rdev_num; i++) rdata[i].name = regulators[i].name; reg_np = of_find_node_by_name(iodev->dev->of_node, "regulators"); if (!reg_np) { dev_err(&pdev->dev, "could not find regulators sub-node\n"); - return -EINVAL; + ret = -EINVAL; + goto out; } - of_regulator_match(&pdev->dev, reg_np, rdata, S2MPS11_REGULATOR_MAX); + of_regulator_match(&pdev->dev, reg_np, rdata, rdev_num); common_reg: platform_set_drvdata(pdev, s2mps11); + s2mps11->rdev_num = rdev_num; config.dev = &pdev->dev; config.regmap = iodev->regmap_pmic; config.driver_data = s2mps11; - for (i = 0; i < S2MPS11_REGULATOR_MAX; i++) { + for (i = 0; i < rdev_num; i++) { struct regulator_dev *regulator; if (!reg_np) { @@ -453,15 +499,18 @@ common_reg: ret = PTR_ERR(regulator); dev_err(&pdev->dev, "regulator init failed for %d\n", i); - return ret; + goto out; } } - return 0; +out: + kfree(rdata); + + return ret; } static const struct platform_device_id s2mps11_pmic_id[] = { - { "s2mps11-pmic", 0}, + { "s2mps11-pmic", S2MPS11X}, { }, }; MODULE_DEVICE_TABLE(platform, s2mps11_pmic_id); |