Messages in this thread Patch in this message | | | From | Naresh Solanki <> | Subject | [PATCH] drivers/regulator: Notify sysfs about status changes | Date | Thu, 5 Oct 2023 15:30:58 +0200 |
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From: Patrick Rudolph <patrick.rudolph@9elements.com>
Notify sysfs for state, status & microvolts.
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Signed-off-by: Naresh Solanki <naresh.solanki@9elements.com> --- drivers/regulator/core.c | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-)
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 3137e40fcd3e..ef5fa70ae2f1 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -98,6 +98,10 @@ static struct regulator *create_regulator(struct regulator_dev *rdev, static void destroy_regulator(struct regulator *regulator); static void _regulator_put(struct regulator *regulator); +static struct device_attribute dev_attr_status; +static struct device_attribute dev_attr_microvolts; +static struct device_attribute dev_attr_state; + const char *rdev_get_name(struct regulator_dev *rdev) { if (rdev->constraints && rdev->constraints->name) @@ -2798,6 +2802,8 @@ static int _regulator_do_enable(struct regulator_dev *rdev) _regulator_delay_helper(delay); } + sysfs_notify(&rdev->dev.kobj, NULL, dev_attr_state.attr.name); + trace_regulator_enable_complete(rdev_get_name(rdev)); return 0; @@ -2980,6 +2986,8 @@ static int _regulator_do_disable(struct regulator_dev *rdev) if (rdev->desc->off_on_delay) rdev->last_off = ktime_get_boottime(); + sysfs_notify(&rdev->dev.kobj, NULL, dev_attr_state.attr.name); + trace_regulator_disable_complete(rdev_get_name(rdev)); return 0; @@ -4848,8 +4856,21 @@ EXPORT_SYMBOL_GPL(regulator_unregister_notifier); static int _notifier_call_chain(struct regulator_dev *rdev, unsigned long event, void *data) { + const char *name; + int ret; + /* call rdev chain first */ - return blocking_notifier_call_chain(&rdev->notifier, event, data); + ret = blocking_notifier_call_chain(&rdev->notifier, event, data); + + if (event & REGULATOR_EVENT_VOLTAGE_CHANGE) { + name = dev_attr_microvolts.attr.name; + sysfs_notify(&rdev->dev.kobj, NULL, name); + } else { + name = dev_attr_status.attr.name; + sysfs_notify(&rdev->dev.kobj, NULL, name); + } + + return ret; } int _regulator_bulk_get(struct device *dev, int num_consumers, base-commit: f9a1d31874c383f58bb4f89bfe79b764682cd026 -- 2.41.0
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