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| author |   Dmitry Osipenko <digetx@gmail.com> | 2021-01-23 19:34:45 +0300 |
|---|---|---|
| committer |   Philipp Zabel <p.zabel@pengutronix.de> | 2021-01-25 17:32:10 +0100 |
| commit | d17655759b3fc660ea49bd7be665c193030c77c0 (patch) | |
| tree | 90313be1c5d19d349460dc592d3f1bea86d10963 /include/linux/reset.h | |
| parent | reset: core: fix a kernel-doc markup (diff) | |
| download | linux-dev-d17655759b3fc660ea49bd7be665c193030c77c0.tar.xz linux-dev-d17655759b3fc660ea49bd7be665c193030c77c0.zip | |
reset: Add devm_reset_control_get_optional_exclusive_released()
NVIDIA Tegra DRM and media drivers will need a resource-managed-optional
variant of reset_control_get_exclusive_released() in order to switch away
from a legacy Tegra-specific PD API to a GENPD API without much hassle.
Add the new reset helper to the reset API.
Tested-by: Peter Geis <pgwipeout@gmail.com> # Ouya T30
Tested-by: Nicolas Chauvet <kwizart@gmail.com> # PAZ00 T20
Tested-by: Matt Merhar <mattmerhar@protonmail.com> # Ouya T30
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Diffstat (limited to 'include/linux/reset.h')
| -rw-r--r-- | include/linux/reset.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/reset.h b/include/linux/reset.h index 439fec7112a9..b9109efa2a5c 100644 --- a/include/linux/reset.h +++ b/include/linux/reset.h @@ -363,6 +363,25 @@ __must_check devm_reset_control_get_exclusive_released(struct device *dev, } /** + * devm_reset_control_get_optional_exclusive_released - resource managed + * reset_control_get_optional_exclusive_released() + * @dev: device to be reset by the controller + * @id: reset line name + * + * Managed-and-optional variant of reset_control_get_exclusive_released(). For + * reset controllers returned from this function, reset_control_put() is called + * automatically on driver detach. + * + * See reset_control_get_exclusive_released() for more information. + */ +static inline struct reset_control * +__must_check devm_reset_control_get_optional_exclusive_released(struct device *dev, + const char *id) +{ + return __devm_reset_control_get(dev, id, 0, false, true, false); +} + +/** * devm_reset_control_get_shared - resource managed reset_control_get_shared() * @dev: device to be reset by the controller * @id: reset line name |