On 06/13/2014 08:38 PM, Axel Lin wrote:
Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to
simplify the code a bit.
Signed-off-by: Axel Lin <axel.lin@xxxxxxxxxx>
---
Hi,
I don't have the h/w to test, I'd appreciate if someone can review and test this
patch.
Thanks,
Axel
drivers/hwmon/twl4030-madc-hwmon.c | 37 +++++--------------------------------
1 file changed, 5 insertions(+), 32 deletions(-)
diff --git a/drivers/hwmon/twl4030-madc-hwmon.c b/drivers/hwmon/twl4030-madc-hwmon.c
index 6c6d440..9904f3d 100644
--- a/drivers/hwmon/twl4030-madc-hwmon.c
+++ b/drivers/hwmon/twl4030-madc-hwmon.c
@@ -74,7 +74,7 @@ static SENSOR_DEVICE_ATTR(in11_input, S_IRUGO, madc_read, NULL, 11);
static SENSOR_DEVICE_ATTR(in12_input, S_IRUGO, madc_read, NULL, 12);
static SENSOR_DEVICE_ATTR(in15_input, S_IRUGO, madc_read, NULL, 15);
-static struct attribute *twl4030_madc_attributes[] = {
+static struct attribute *twl4030_madc_attrs[] = {
&sensor_dev_attr_in0_input.dev_attr.attr,
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_in2_input.dev_attr.attr,
@@ -91,46 +91,19 @@ static struct attribute *twl4030_madc_attributes[] = {
&sensor_dev_attr_in15_input.dev_attr.attr,
NULL
};
-
-static const struct attribute_group twl4030_madc_group = {
- .attrs = twl4030_madc_attributes,
-};
+ATTRIBUTE_GROUPS(twl4030_madc);
static int twl4030_madc_hwmon_probe(struct platform_device *pdev)
{
- int ret;
struct device *hwmon;
- ret = sysfs_create_group(&pdev->dev.kobj, &twl4030_madc_group);
- if (ret)
- goto err_sysfs;
- hwmon = hwmon_device_register(&pdev->dev);
- if (IS_ERR(hwmon)) {
- dev_err(&pdev->dev, "hwmon_device_register failed.\n");
- ret = PTR_ERR(hwmon);
- goto err_reg;
- }
-
- return 0;
-
-err_reg:
- sysfs_remove_group(&pdev->dev.kobj, &twl4030_madc_group);
-err_sysfs:
-
- return ret;
-}
-
-static int twl4030_madc_hwmon_remove(struct platform_device *pdev)
-{
- hwmon_device_unregister(&pdev->dev);
- sysfs_remove_group(&pdev->dev.kobj, &twl4030_madc_group);
-
- return 0;
+ hwmon = devm_hwmon_device_register_with_groups(&pdev->dev, NULL, NULL,
Hi Axel,
You'll need to pass a name here. Hmmm... that wasn't there before either,
meaning the 'sensors' command never worked with this driver. I must
have had a bad day when I reviewed it, especially since
hwmon_device_unregister() takes the hwmon device as argument,
not the platform device.
I would suggest to use "twl4030_madc" as name string for simplicity.
Guenter
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