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reset: add reset_request()

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This is needed in error path to assert previously deasserted
reset by using a saved reset_ctl reference.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Patrice Chotard 2017-07-18 11:57:05 +02:00 committed by Marek Vasut
parent f56db163ad
commit 9bd5cdf6b6
2 changed files with 18 additions and 0 deletions
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9
drivers/reset/reset-uclass.c
View File

@ -97,6 +97,15 @@ int reset_get_by_name(struct udevice *dev, const char *name,
return reset_get_by_index(dev, index, reset_ctl);
}
int reset_request(struct reset_ctl *reset_ctl)
{
struct reset_ops *ops = reset_dev_ops(reset_ctl->dev);
debug("%s(reset_ctl=%p)\n", __func__, reset_ctl);
return ops->request(reset_ctl);
}
int reset_free(struct reset_ctl *reset_ctl)
{
struct reset_ops *ops = reset_dev_ops(reset_ctl->dev);

9
include/reset.h
View File

@ -99,6 +99,15 @@ int reset_get_by_index(struct udevice *dev, int index,
int reset_get_by_name(struct udevice *dev, const char *name,
struct reset_ctl *reset_ctl);
/**
* reset_request - Request a reset signal.
*
* @reset_ctl: A reset control struct.
*
* @return 0 if OK, or a negative error code.
*/
int reset_request(struct reset_ctl *reset_ctl);
/**
* reset_free - Free a previously requested reset signal.
*