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authorMark Brown <broonie@kernel.org>2023-08-25 01:48:22 +0300
committerMark Brown <broonie@kernel.org>2023-08-25 01:58:34 +0300
commitb96c22476ff4bc3459933f87ba52cbb7910ffc6b (patch)
tree355cf5209c0e5a6feaf66dd1a6a5fc794a6ca67b /drivers/regulator
parent21cc7f816c670423a9dae06ad7de5fbc40da97c7 (diff)
downloadlinux-b96c22476ff4bc3459933f87ba52cbb7910ffc6b.tar.xz
regulator: userspace-consumer: Drop event support for this cycle
Drop commit 22475bcc2083 ("regulator: userspace-consumer: Add regulator event support") since Zev Weiss points out that it leaks the constants we use for notifications out as ABI which isn't ideal, we should have something more abstracted there. There's a definite need for this feature but it needs some more work on the interface. Signed-off-by: Mark Brown <broonie@kernel.org Link: https://lore.kernel.org/r/20230824-regulator-remove-status-sysfs-v1-1-554956e8c1ca@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org
Diffstat (limited to 'drivers/regulator')
-rw-r--r--drivers/regulator/userspace-consumer.c52
1 files changed, 1 insertions, 51 deletions
diff --git a/drivers/regulator/userspace-consumer.c b/drivers/regulator/userspace-consumer.c
index a0b980022993..97f075ed68c9 100644
--- a/drivers/regulator/userspace-consumer.c
+++ b/drivers/regulator/userspace-consumer.c
@@ -29,10 +29,6 @@ struct userspace_consumer_data {
int num_supplies;
struct regulator_bulk_data *supplies;
-
- struct kobject *kobj;
- struct notifier_block nb;
- unsigned long events;
};
static ssize_t name_show(struct device *dev,
@@ -93,30 +89,12 @@ static ssize_t state_store(struct device *dev, struct device_attribute *attr,
return count;
}
-static DEFINE_MUTEX(events_lock);
-
-static ssize_t events_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct userspace_consumer_data *data = dev_get_drvdata(dev);
- unsigned long e;
-
- mutex_lock(&events_lock);
- e = data->events;
- data->events = 0;
- mutex_unlock(&events_lock);
-
- return sprintf(buf, "0x%lx\n", e);
-}
-
static DEVICE_ATTR_RO(name);
static DEVICE_ATTR_RW(state);
-static DEVICE_ATTR_RO(events);
static struct attribute *attributes[] = {
&dev_attr_name.attr,
&dev_attr_state.attr,
- &dev_attr_events.attr,
NULL,
};
@@ -137,28 +115,12 @@ static const struct attribute_group attr_group = {
.is_visible = attr_visible,
};
-static int regulator_userspace_notify(struct notifier_block *nb,
- unsigned long event,
- void *ignored)
-{
- struct userspace_consumer_data *data =
- container_of(nb, struct userspace_consumer_data, nb);
-
- mutex_lock(&events_lock);
- data->events |= event;
- mutex_unlock(&events_lock);
-
- sysfs_notify(data->kobj, NULL, dev_attr_events.attr.name);
-
- return NOTIFY_OK;
-}
-
static int regulator_userspace_consumer_probe(struct platform_device *pdev)
{
struct regulator_userspace_consumer_data tmpdata;
struct regulator_userspace_consumer_data *pdata;
struct userspace_consumer_data *drvdata;
- int i, ret;
+ int ret;
pdata = dev_get_platdata(&pdev->dev);
if (!pdata) {
@@ -191,7 +153,6 @@ static int regulator_userspace_consumer_probe(struct platform_device *pdev)
drvdata->num_supplies = pdata->num_supplies;
drvdata->supplies = pdata->supplies;
drvdata->no_autoswitch = pdata->no_autoswitch;
- drvdata->kobj = &pdev->dev.kobj;
mutex_init(&drvdata->lock);
@@ -225,13 +186,6 @@ static int regulator_userspace_consumer_probe(struct platform_device *pdev)
}
drvdata->enabled = !!ret;
- drvdata->nb.notifier_call = regulator_userspace_notify;
- for (i = 0; i < drvdata->num_supplies; i++) {
- ret = devm_regulator_register_notifier(drvdata->supplies[i].consumer, &drvdata->nb);
- if (ret)
- goto err_enable;
- }
-
return 0;
err_enable:
@@ -243,10 +197,6 @@ err_enable:
static int regulator_userspace_consumer_remove(struct platform_device *pdev)
{
struct userspace_consumer_data *data = platform_get_drvdata(pdev);
- int i;
-
- for (i = 0; i < data->num_supplies; i++)
- devm_regulator_unregister_notifier(data->supplies[i].consumer, &data->nb);
sysfs_remove_group(&pdev->dev.kobj, &attr_group);