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reset: add reset_control_status helper function

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There are cases where a system will want to read a reset status bit before
doing any other toggling. Add a reset_control_status helper function to the
reset controller API.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This commit is contained in:
Dinh Nguyen
2014-10-10 10:21:14 -05:00
committed by Philipp Zabel
parent f114040e3e
commit 729de41baf
3 changed files with 24 additions and 0 deletions
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2
include/linux/reset-controller.h
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@@ -12,11 +12,13 @@ struct reset_controller_dev;
* things to reset the device
* @assert: manually assert the reset line, if supported
* @deassert: manually deassert the reset line, if supported
* @status: return the status of the reset line, if supported
*/
struct reset_control_ops {
int (*reset)(struct reset_controller_dev *rcdev, unsigned long id);
int (*assert)(struct reset_controller_dev *rcdev, unsigned long id);
int (*deassert)(struct reset_controller_dev *rcdev, unsigned long id);
int (*status)(struct reset_controller_dev *rcdev, unsigned long id);
};
struct module;