[PATCH v2 2/4] environment: implement of_env_get_alias_by_path helper

[Sascha Hauer]

On Fri, Nov 15, 2024 at 01:38:03PM +0100, Ahmad Fatoum wrote:
> On 15.11.24 13:16, Ahmad Fatoum wrote:
> > For use by board-code that wants to get the alias pointing at the
> > backing device of an environment node add a simple
> > of_env_get_alias_by_path() helper, so board code doesn't need to worry
> > about property name and whether the binding uses a phandle or string path.
> > 
> > Signed-off-by: Ahmad Fatoum <a.fatoum at pengutronix.de>
> 
> Thinking about it, of_env_get_device_alias_by_path may be a bit verbose,
> but is a better name.
> 
> I'll wait for more feedback before sending v3 though.

LGTM otherwise.

Sascha

> 
> Cheers,
> Ahmad
> 
> > ---
> > v1 -> v2:
> >   - no change
> > ---
> >  drivers/of/barebox.c |  5 +++++
> >  include/envfs.h      | 10 ++++++++++
> >  2 files changed, 15 insertions(+)
> > 
> > diff --git a/drivers/of/barebox.c b/drivers/of/barebox.c
> > index ed5d171e43a8..7d433e280ba5 100644
> > --- a/drivers/of/barebox.c
> > +++ b/drivers/of/barebox.c
> > @@ -15,6 +15,11 @@
> >  
> >  #define ENV_MNT_DIR "/boot"	/* If env on filesystem, where to mount */
> >  
> > +const char *of_env_get_alias_by_path(const char *of_path)
> > +{
> > +	return of_property_get_alias(of_path, "device-path");
> > +}
> > +
> >  /* If dev describes a file on a fs, mount the fs and return a pointer
> >   * to the file's path.  Otherwise return an error code or NULL if the
> >   * device path should be used.
> > diff --git a/include/envfs.h b/include/envfs.h
> > index 767b34c943de..8bfc83b6b008 100644
> > --- a/include/envfs.h
> > +++ b/include/envfs.h
> > @@ -118,6 +118,16 @@ static inline const char *default_environment_path_get(void)
> >  }
> >  #endif
> >  
> > +#ifdef CONFIG_OF_BAREBOX_DRIVERS
> > +const char *of_env_get_alias_by_path(const char *of_path);
> > +#else
> > +static inline const char *of_env_get_alias_by_path(const char *of_path)
> > +{
> > +	return NULL;
> > +}
> > +#endif
> > +
> > +
> >  #ifdef CONFIG_DEFAULT_ENVIRONMENT
> >  void defaultenv_append(void *buf, unsigned int size, const char *name);
> >  int defaultenv_load(const char *dir, unsigned flags);
> 
> 
> -- 
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> 
> 

-- 
Pengutronix e.K.                           |                             |
Steuerwalder Str. 21                       | http://www.pengutronix.de/  |
31137 Hildesheim, Germany                  | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |