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authorDinh Nguyen <dinguyen@opensource.altera.com>2014-10-10 10:21:14 -0500
committerPhilipp Zabel <p.zabel@pengutronix.de>2014-10-20 10:11:29 +0200
commit729de41baf63e2172b9d61de61bbd53f231095ca (patch)
tree8c04f97eb59f6cd90977f87b5476ec6711546730 /include/linux/reset.h
parentf114040e3ea6e07372334ade75d1ee0775c355e1 (diff)
reset: add reset_control_status helper function
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>
Diffstat (limited to 'include/linux/reset.h')
-rw-r--r--include/linux/reset.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/reset.h b/include/linux/reset.h
index 349f150ae12c..da5602bd77d7 100644
--- a/include/linux/reset.h
+++ b/include/linux/reset.h
@@ -10,6 +10,7 @@ struct reset_control;
int reset_control_reset(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);
struct reset_control *reset_control_get(struct device *dev, const char *id);
void reset_control_put(struct reset_control *rstc);
@@ -57,6 +58,12 @@ static inline int reset_control_deassert(struct reset_control *rstc)
return 0;
}
+static inline int reset_control_status(struct reset_control *rstc)
+{
+ WARN_ON(1);
+ return 0;
+}
+
static inline void reset_control_put(struct reset_control *rstc)
{
WARN_ON(1);