On 24-02-19, Sascha Hauer wrote:
> We have a relation between the bootsource and the corresponding
> device_node. Add a function to get the device_node we booted from.
> This is already open coded in of_fixup_bootargs_bootsource(),
> use the newly created function for it.
>
> Signed-off-by: Sascha Hauer <s.ha...@pengutronix.de>
> ---
> common/bootsource.c | 14 ++++++++++++++
> common/oftree.c | 7 +------
> include/bootsource.h | 1 +
> 3 files changed, 16 insertions(+), 6 deletions(-)
>
> diff --git a/common/bootsource.c b/common/bootsource.c
> index da528a5b9b..5666d8d30d 100644
> --- a/common/bootsource.c
> +++ b/common/bootsource.c
> @@ -108,6 +108,20 @@ char *bootsource_get_alias_name(void)
> return basprintf("%s%d", stem, bootsource_instance);
> }
>
> +struct device_node *bootsource_of_node_get(struct device_node *root)
> +{
> + struct device_node *np;
> + char *alias_name;
> +
> + alias_name = bootsource_get_alias_name();
if (!alias_name) {
pr_warn("No alias found for bootsource\n");
return 0;
}
Regards,
Marco
> +
> + np = of_find_node_by_alias(root, alias_name);
> +
> + free(alias_name);
> +
> + return np;
> +}
> +
> void bootsource_set_alias_name(const char *name)
> {
> bootsource_alias_name = name;
> diff --git a/common/oftree.c b/common/oftree.c
> index 51eebd36bd..c12b3cfb16 100644
> --- a/common/oftree.c
> +++ b/common/oftree.c
> @@ -124,14 +124,10 @@ void of_print_cmdline(struct device_node *root)
> static int of_fixup_bootargs_bootsource(struct device_node *root,
> struct device_node *chosen)
> {
> - char *alias_name = bootsource_get_alias_name();
> struct device_node *bootsource;
> int ret = 0;
>
> - if (!alias_name)
> - return 0;
> -
> - bootsource = of_find_node_by_alias(root, alias_name);
> + bootsource = bootsource_of_node_get(root);
> /*
> * If kernel DTB doesn't have the appropriate alias set up,
> * give up and exit early. No error is reported.
> @@ -140,7 +136,6 @@ static int of_fixup_bootargs_bootsource(struct
> device_node *root,
> ret = of_set_property(chosen, "bootsource",
> bootsource->full_name,
> strlen(bootsource->full_name) + 1, true);
>
> - free(alias_name);
> return ret;
> }
>
> diff --git a/include/bootsource.h b/include/bootsource.h
> index f2ab3a2ad4..33ad269460 100644
> --- a/include/bootsource.h
> +++ b/include/bootsource.h
> @@ -33,6 +33,7 @@ char *bootsource_get_alias_name(void);
> const char *bootsource_to_string(enum bootsource src);
> const char *bootsource_get_alias_stem(enum bootsource bs);
> int bootsource_of_alias_xlate(enum bootsource bs, int instance);
> +struct device_node *bootsource_of_node_get(struct device_node *root);
>
> /**
> * bootsource_set - set bootsource with optional DT mapping table
> --
> 2.39.2
>
>
>
