4.9-stable review patch. If anyone has any objections, please let me know.
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From: Masahiro Yamada yamada.masahiro@socionext.com
commit 1554bbd4ad401b7f0f916c0891874111c10befe5 upstream.
Commit bb475230b8e5 ("reset: make optional functions really optional") converted *_get_optional* functions, but device_reset_optional() was left behind. Convert it in the same way.
Signed-off-by: Masahiro Yamada yamada.masahiro@socionext.com Signed-off-by: Philipp Zabel p.zabel@pengutronix.de Cc: Dinh Nguyen dinguyen@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/reset/core.c | 9 +++++---- include/linux/reset.h | 28 +++++++++++++--------------- 2 files changed, 18 insertions(+), 19 deletions(-)
--- a/drivers/reset/core.c +++ b/drivers/reset/core.c @@ -410,17 +410,18 @@ EXPORT_SYMBOL_GPL(__devm_reset_control_g * device_reset - find reset controller associated with the device * and perform reset * @dev: device to be reset by the controller + * @optional: whether it is optional to reset the device * - * Convenience wrapper for reset_control_get() and reset_control_reset(). + * Convenience wrapper for __reset_control_get() and reset_control_reset(). * This is useful for the common case of devices with single, dedicated reset * lines. */ -int device_reset(struct device *dev) +int __device_reset(struct device *dev, bool optional) { struct reset_control *rstc; int ret;
- rstc = reset_control_get(dev, NULL); + rstc = __reset_control_get(dev, NULL, 0, 0, optional); if (IS_ERR(rstc)) return PTR_ERR(rstc);
@@ -430,4 +431,4 @@ int device_reset(struct device *dev)
return ret; } -EXPORT_SYMBOL_GPL(device_reset); +EXPORT_SYMBOL_GPL(__device_reset); --- a/include/linux/reset.h +++ b/include/linux/reset.h @@ -19,17 +19,11 @@ struct reset_control *__reset_control_ge int index, bool shared, bool optional); void reset_control_put(struct reset_control *rstc); +int __device_reset(struct device *dev, bool optional); struct reset_control *__devm_reset_control_get(struct device *dev, const char *id, int index, bool shared, bool optional);
-int __must_check device_reset(struct device *dev); - -static inline int device_reset_optional(struct device *dev) -{ - return device_reset(dev); -} - #else
static inline int reset_control_reset(struct reset_control *rstc) @@ -56,15 +50,9 @@ static inline void reset_control_put(str { }
-static inline int __must_check device_reset(struct device *dev) -{ - WARN_ON(1); - return -ENOTSUPP; -} - -static inline int device_reset_optional(struct device *dev) +static inline int __device_reset(struct device *dev, bool optional) { - return -ENOTSUPP; + return optional ? 0 : -ENOTSUPP; }
static inline struct reset_control *__of_reset_control_get( @@ -91,6 +79,16 @@ static inline struct reset_control *__de
#endif /* CONFIG_RESET_CONTROLLER */
+static inline int __must_check device_reset(struct device *dev) +{ + return __device_reset(dev, false); +} + +static inline int device_reset_optional(struct device *dev) +{ + return __device_reset(dev, true); +} + /** * reset_control_get_exclusive - Lookup and obtain an exclusive reference * to a reset controller.