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authorLinus Walleij <linus.walleij@linaro.org>2020-05-18 09:40:50 +0200
committerLinus Walleij <linus.walleij@linaro.org>2020-05-18 09:40:50 +0200
commite75dfba311f478f1c2bf928284e1949c20594336 (patch)
tree058eebede54716f81be6642f1fc26b6d9844fe6c /drivers/gpio/gpiolib.c
parentb9bbe6ed63b2b9f2c9ee5cbd0f2c946a2723f4ce (diff)
parent9fefca775c8ddbbbcd97f2860218188b8641819d (diff)
downloadlinux-e75dfba311f478f1c2bf928284e1949c20594336.tar.bz2
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.c15
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);