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| author | Linus Walleij <linus.walleij@linaro.org> | 2020-05-18 09:40:50 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2020-05-18 09:40:50 +0200 |
| commit | e75dfba311f478f1c2bf928284e1949c20594336 (patch) | |
| tree | 058eebede54716f81be6642f1fc26b6d9844fe6c /drivers/gpio/gpiolib.c | |
| parent | Linux 5.7-rc6 (diff) | |
| parent | gpiolib: notify user-space about line status changes after flags are set (diff) | |
| download | linux-e75dfba311f478f1c2bf928284e1949c20594336.tar.xz linux-e75dfba311f478f1c2bf928284e1949c20594336.zip | |
Merge tag 'gpio-fixes-for-v5.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into fixes
gpio fixes for v5.7-rc6
- fix probing for chips without PWM in gpio-mvebu
- fix ida_simple_get() error path in gpio-exar
- fix user-space notifications for line state changes
Diffstat (limited to 'drivers/gpio/gpiolib.c')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 182136d98b97..b4b5792fe2ff 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -729,6 +729,10 @@ static int linehandle_create(struct gpio_device *gdev, void __user *ip) if (ret) goto out_free_descs; } + + atomic_notifier_call_chain(&desc->gdev->notifier, + GPIOLINE_CHANGED_REQUESTED, desc); + dev_dbg(&gdev->dev, "registered chardev handle for line %d\n", offset); } @@ -1083,6 +1087,9 @@ static int lineevent_create(struct gpio_device *gdev, void __user *ip) if (ret) goto out_free_desc; + atomic_notifier_call_chain(&desc->gdev->notifier, + GPIOLINE_CHANGED_REQUESTED, desc); + le->irq = gpiod_to_irq(desc); if (le->irq <= 0) { ret = -ENODEV; @@ -2998,8 +3005,6 @@ static int gpiod_request_commit(struct gpio_desc *desc, const char *label) } done: spin_unlock_irqrestore(&gpio_lock, flags); - atomic_notifier_call_chain(&desc->gdev->notifier, - GPIOLINE_CHANGED_REQUESTED, desc); return ret; } @@ -4961,6 +4966,9 @@ struct gpio_desc *__must_check gpiod_get_index(struct device *dev, return ERR_PTR(ret); } + atomic_notifier_call_chain(&desc->gdev->notifier, + GPIOLINE_CHANGED_REQUESTED, desc); + return desc; } EXPORT_SYMBOL_GPL(gpiod_get_index); @@ -5026,6 +5034,9 @@ struct gpio_desc *fwnode_get_named_gpiod(struct fwnode_handle *fwnode, return ERR_PTR(ret); } + atomic_notifier_call_chain(&desc->gdev->notifier, + GPIOLINE_CHANGED_REQUESTED, desc); + return desc; } EXPORT_SYMBOL_GPL(fwnode_get_named_gpiod); |