diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2018-06-05 13:21:26 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2018-07-23 15:22:39 +1000 |
| commit | d5e838275c80aeb96d4c0b81442a851dfef2e948 (patch) | |
| tree | e315e83e62b5eab99f716f9cf20dd6813dd5256c /include | |
| parent | d5e748ff2b996d83489ac76c072e8b99f9ecef13 (diff) | |
devres: Add devm_of_iomap()
There are still quite a few cases where a device might want
to get to a different node of the device-tree, obtain the
resources and map them.
We have of_iomap() and of_io_request_and_map() but they both
have shortcomings, such as not returning the size of the
resource found (which can be useful) and not being "managed".
This adds a devm_of_iomap() that provides all of these and
should probably replace uses of the above in most drivers.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/device.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/device.h b/include/linux/device.h index 055a69dbcd18..6aa8d51eabe9 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -696,6 +696,10 @@ extern void devm_free_pages(struct device *dev, unsigned long addr); void __iomem *devm_ioremap_resource(struct device *dev, struct resource *res); +void __iomem *devm_of_iomap(struct device *dev, + struct device_node *node, int index, + resource_size_t *size); + /* allows to add/remove a custom action to devres stack */ int devm_add_action(struct device *dev, void (*action)(void *), void *data); void devm_remove_action(struct device *dev, void (*action)(void *), void *data); |