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Reset controller fixes for v4.11

Browse Source 
Fix optional reset_control_get_stubs to return NULL and remove warnings
 from reset_control_* stubs.
 This fixes commit bb475230b8e5 ("reset: make optional  functions really
 optional"), which was merged in reset-for-4.11, and would cause consumer
 drivers depending on the new behaviour of optional resets to fail probing
 if RESET_CONTROLLER Kconfig option is disabled.
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Merge tag 'reset-fixes-for-4.11' of git://git.pengutronix.de/git/pza/linux into fixes

Reset controller fixes for v4.11

Fix optional reset_control_get_stubs to return NULL and remove warnings
from reset_control_* stubs.
This fixes commit bb475230b8e5 ("reset: make optional  functions really
optional"), which was merged in reset-for-4.11, and would cause consumer
drivers depending on the new behaviour of optional resets to fail probing
if RESET_CONTROLLER Kconfig option is disabled.

* tag 'reset-fixes-for-4.11' of git://git.pengutronix.de/git/pza/linux:
  reset: fix optional reset_control_get stubs to return NULL

Signed-off-by: Olof Johansson <olof@lixom.net>
This commit is contained in:
Olof Johansson 2017-03-21 17:30:51 -07:00
commit 6014ce8559
1 changed files with 2 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
include/linux/reset.h
View File

@ -31,31 +31,26 @@ static inline int device_reset_optional(struct device *dev)
static inline int reset_control_reset(struct reset_control *rstc)
{
WARN_ON(1);
return 0;
}
static inline int reset_control_assert(struct reset_control *rstc)
{
WARN_ON(1);
return 0;
}
static inline int reset_control_deassert(struct reset_control *rstc)
{
WARN_ON(1);
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);
}
static inline int __must_check device_reset(struct device *dev)
@ -74,14 +69,14 @@ static inline struct reset_control *__of_reset_control_get(
const char *id, int index, bool shared,
bool optional)
{
return ERR_PTR(-ENOTSUPP);
return optional ? NULL : ERR_PTR(-ENOTSUPP);
}
static inline struct reset_control *__devm_reset_control_get(
struct device *dev, const char *id,
int index, bool shared, bool optional)
{
return ERR_PTR(-ENOTSUPP);
return optional ? NULL : ERR_PTR(-ENOTSUPP);
}
#endif /* CONFIG_RESET_CONTROLLER */