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authorAmjad Ouled-Ameur <aouledameur@baylibre.com>2020-11-13 00:00:43 +0100
committerPhilipp Zabel <p.zabel@pengutronix.de>2020-11-16 17:05:28 +0100
commit557acb3d2cd9c82de19f944f6cc967a347735385 (patch)
tree3109b1a54995d97e6ae021da6cba94c0557e03c8 /include/linux/reset.h
parent3650b228f83adda7e5ee532e2b90429c03f7b9ec (diff)
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reset: make shared pulsed reset controls re-triggerable
The current reset framework API does not allow to release what is done by reset_control_reset(), IOW decrement triggered_count. Add the new reset_control_rearm() call to do so. When reset_control_reset() has been called once, the counter triggered_count, in the reset framework, is incremented i.e the resource under the reset is in-use and the reset should not be done again. reset_control_rearm() would be the way to state that the resource is no longer used and, that from the caller's perspective, the reset can be fired again if necessary. Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com> Reported-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Diffstat (limited to 'include/linux/reset.h')
-rw-r--r--include/linux/reset.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/reset.h b/include/linux/reset.h
index 05aa9f440f48..439fec7112a9 100644
--- a/include/linux/reset.h
+++ b/include/linux/reset.h
@@ -13,6 +13,7 @@ struct reset_control;
#ifdef CONFIG_RESET_CONTROLLER
int reset_control_reset(struct reset_control *rstc);
+int reset_control_rearm(struct reset_control *rstc);
int reset_control_assert(struct reset_control *rstc);
int reset_control_deassert(struct reset_control *rstc);
int reset_control_status(struct reset_control *rstc);