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| author | Axel Lin <axel.lin@ingics.com> | 2014-06-17 23:12:08 +0800 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2014-08-04 07:01:34 -0700 |
| commit | b3aabd6db3700dfa6ab334c96cbf16c04929b8a2 (patch) | |
| tree | b4702123521bf151ba716ad260961aa2987aa104 /drivers/hwmon/wm8350-hwmon.c | |
| parent | 9a70c97b218f5b78b3a265c3ba797b18fa36bd02 (diff) | |
| download | lwn-b3aabd6db3700dfa6ab334c96cbf16c04929b8a2.tar.gz lwn-b3aabd6db3700dfa6ab334c96cbf16c04929b8a2.zip | |
hwmon: (wm8350) Convert to devm_hwmon_device_register_with_groups
Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to
simplify the code a bit.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon/wm8350-hwmon.c')
| -rw-r--r-- | drivers/hwmon/wm8350-hwmon.c | 50 |
1 files changed, 7 insertions, 43 deletions
diff --git a/drivers/hwmon/wm8350-hwmon.c b/drivers/hwmon/wm8350-hwmon.c index 64bf75c9442b..90e3d918e597 100644 --- a/drivers/hwmon/wm8350-hwmon.c +++ b/drivers/hwmon/wm8350-hwmon.c @@ -28,19 +28,12 @@ #include <linux/mfd/wm8350/core.h> #include <linux/mfd/wm8350/comparator.h> -static ssize_t show_name(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "wm8350\n"); -} - static const char * const input_names[] = { [WM8350_AUXADC_USB] = "USB", [WM8350_AUXADC_LINE] = "Line", [WM8350_AUXADC_BATT] = "Battery", }; - static ssize_t show_voltage(struct device *dev, struct device_attribute *attr, char *buf) { @@ -68,15 +61,11 @@ static ssize_t show_label(struct device *dev, static SENSOR_DEVICE_ATTR(in##id##_label, S_IRUGO, show_label, \ NULL, name) -static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); - WM8350_NAMED_VOLTAGE(0, WM8350_AUXADC_USB); WM8350_NAMED_VOLTAGE(1, WM8350_AUXADC_BATT); WM8350_NAMED_VOLTAGE(2, WM8350_AUXADC_LINE); -static struct attribute *wm8350_attributes[] = { - &dev_attr_name.attr, - +static struct attribute *wm8350_attrs[] = { &sensor_dev_attr_in0_input.dev_attr.attr, &sensor_dev_attr_in0_label.dev_attr.attr, &sensor_dev_attr_in1_input.dev_attr.attr, @@ -87,46 +76,21 @@ static struct attribute *wm8350_attributes[] = { NULL, }; -static const struct attribute_group wm8350_attr_group = { - .attrs = wm8350_attributes, -}; +ATTRIBUTE_GROUPS(wm8350); static int wm8350_hwmon_probe(struct platform_device *pdev) { struct wm8350 *wm8350 = platform_get_drvdata(pdev); - int ret; - - ret = sysfs_create_group(&pdev->dev.kobj, &wm8350_attr_group); - if (ret) - goto err; - - wm8350->hwmon.classdev = hwmon_device_register(&pdev->dev); - if (IS_ERR(wm8350->hwmon.classdev)) { - ret = PTR_ERR(wm8350->hwmon.classdev); - goto err_group; - } - - return 0; - -err_group: - sysfs_remove_group(&pdev->dev.kobj, &wm8350_attr_group); -err: - return ret; -} - -static int wm8350_hwmon_remove(struct platform_device *pdev) -{ - struct wm8350 *wm8350 = platform_get_drvdata(pdev); - - hwmon_device_unregister(wm8350->hwmon.classdev); - sysfs_remove_group(&pdev->dev.kobj, &wm8350_attr_group); + struct device *hwmon_dev; - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(&pdev->dev, "wm8350", + wm8350, + wm8350_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static struct platform_driver wm8350_hwmon_driver = { .probe = wm8350_hwmon_probe, - .remove = wm8350_hwmon_remove, .driver = { .name = "wm8350-hwmon", .owner = THIS_MODULE, |