diff options
Diffstat (limited to 'drivers/power/max8925_power.c')
| -rw-r--r-- | drivers/power/max8925_power.c | 67 |
1 files changed, 58 insertions, 9 deletions
diff --git a/drivers/power/max8925_power.c b/drivers/power/max8925_power.c index daa333bd7eb..b4513f284bb 100644 --- a/drivers/power/max8925_power.c +++ b/drivers/power/max8925_power.c @@ -12,6 +12,7 @@ #include <linux/module.h> #include <linux/err.h> #include <linux/slab.h> +#include <linux/of.h> #include <linux/i2c.h> #include <linux/interrupt.h> #include <linux/platform_device.h> @@ -356,7 +357,7 @@ do { \ _irq, ret); \ } while (0) -static __devinit int max8925_init_charger(struct max8925_chip *chip, +static int max8925_init_charger(struct max8925_chip *chip, struct max8925_power_info *info) { int ret; @@ -414,7 +415,7 @@ static __devinit int max8925_init_charger(struct max8925_chip *chip, return 0; } -static __devexit int max8925_deinit_charger(struct max8925_power_info *info) +static int max8925_deinit_charger(struct max8925_power_info *info) { struct max8925_chip *chip = info->chip; int irq; @@ -426,21 +427,71 @@ static __devexit int max8925_deinit_charger(struct max8925_power_info *info) return 0; } -static __devinit int max8925_power_probe(struct platform_device *pdev) +#ifdef CONFIG_OF +static struct max8925_power_pdata * +max8925_power_dt_init(struct platform_device *pdev) +{ + struct device_node *nproot = pdev->dev.parent->of_node; + struct device_node *np; + int batt_detect; + int topoff_threshold; + int fast_charge; + int no_temp_support; + int no_insert_detect; + struct max8925_power_pdata *pdata; + + if (!nproot) + return pdev->dev.platform_data; + + np = of_find_node_by_name(nproot, "charger"); + if (!np) { + dev_err(&pdev->dev, "failed to find charger node\n"); + return NULL; + } + + pdata = devm_kzalloc(&pdev->dev, + sizeof(struct max8925_power_pdata), + GFP_KERNEL); + + of_property_read_u32(np, "topoff-threshold", &topoff_threshold); + of_property_read_u32(np, "batt-detect", &batt_detect); + of_property_read_u32(np, "fast-charge", &fast_charge); + of_property_read_u32(np, "no-insert-detect", &no_insert_detect); + of_property_read_u32(np, "no-temp-support", &no_temp_support); + of_node_put(np); + + pdata->batt_detect = batt_detect; + pdata->fast_charge = fast_charge; + pdata->topoff_threshold = topoff_threshold; + pdata->no_insert_detect = no_insert_detect; + pdata->no_temp_support = no_temp_support; + + return pdata; +} +#else +static struct max8925_power_pdata * +max8925_power_dt_init(struct platform_device *pdev) +{ + return pdev->dev.platform_data; +} +#endif + +static int max8925_power_probe(struct platform_device *pdev) { struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent); struct max8925_power_pdata *pdata = NULL; struct max8925_power_info *info; int ret; - pdata = pdev->dev.platform_data; + pdata = max8925_power_dt_init(pdev); if (!pdata) { dev_err(&pdev->dev, "platform data isn't assigned to " "power supply\n"); return -EINVAL; } - info = kzalloc(sizeof(struct max8925_power_info), GFP_KERNEL); + info = devm_kzalloc(&pdev->dev, sizeof(struct max8925_power_info), + GFP_KERNEL); if (!info) return -ENOMEM; info->chip = chip; @@ -497,11 +548,10 @@ out_battery: out_usb: power_supply_unregister(&info->ac); out: - kfree(info); return ret; } -static __devexit int max8925_power_remove(struct platform_device *pdev) +static int max8925_power_remove(struct platform_device *pdev) { struct max8925_power_info *info = platform_get_drvdata(pdev); @@ -510,14 +560,13 @@ static __devexit int max8925_power_remove(struct platform_device *pdev) power_supply_unregister(&info->usb); power_supply_unregister(&info->battery); max8925_deinit_charger(info); - kfree(info); } return 0; } static struct platform_driver max8925_power_driver = { .probe = max8925_power_probe, - .remove = __devexit_p(max8925_power_remove), + .remove = max8925_power_remove, .driver = { .name = "max8925-power", }, |