Hi Ivan, Am Donnerstag, den 10.10.2013, 12:14 +0300 schrieb Ivan T. Ivanov: > From: "Ivan T. Ivanov" <iiva...@mm-sol.com> > > Make sure client drivers will still build on systems > without reset control support.
the stubs should at least return errors, but then this turns a compile time error into a runtime error for devices that don't work without being properly reset. Please also refer to this thread: http://lists.infradead.org/pipermail/linux-arm-kernel/2013-June/174758.html regards Philipp > Signed-off-by: Ivan T. Ivanov <iiva...@mm-sol.com> > Cc: Pavel Machek <pa...@ucw.cz> > Cc: Stephen Warren <swar...@nvidia.com> > Cc: Shawn Guo <shawn....@linaro.org> > Cc: Marek Vasut <ma...@denx.de> > --- > include/linux/reset.h | 44 ++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 44 insertions(+) > > diff --git a/include/linux/reset.h b/include/linux/reset.h > index 6082247..0df3e30 100644 > --- a/include/linux/reset.h > +++ b/include/linux/reset.h > @@ -4,6 +4,8 @@ > struct device; > struct reset_control; > > +#if defined(CONFIG_RESET_CONTROLLER) > + > int reset_control_reset(struct reset_control *rstc); > int reset_control_assert(struct reset_control *rstc); > int reset_control_deassert(struct reset_control *rstc); > @@ -14,4 +16,46 @@ struct reset_control *devm_reset_control_get(struct device > *dev, const char *id) > > int device_reset(struct device *dev); > > +#else /* !CONFIG_RESET_CONTROLLER */ > + > +/* > + * Make sure client drivers will still build on systems without > + * reset control support. > + */ > +static inline int reset_control_reset(struct reset_control *rstc) > +{ > + return 0; > +} > + > +static inline int reset_control_assert(struct reset_control *rstc) > +{ > + return 0; > +} > + > +static inline int reset_control_deassert(struct reset_control *rstc) > +{ > + return 0; > +} > + > +static inline struct reset_control * > +reset_control_get(struct device *dev, const char *id) > +{ > + return 0; > +} > + > +static inline void reset_control_put(struct reset_control *rstc){} > + > +static inline struct reset_control * > +devm_reset_control_get(struct device *dev, const char *id) > +{ > + return NULL; > +} > + > +static inline int device_reset(struct device *dev) > +{ > + return 0; > +} > + > +#endif > + > #endif -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
