[PATCH 2/2] of_device_is_stdout_path: split off options and support aliases
Sascha Hauer
s.hauer at pengutronix.de
Wed Jun 14 06:27:32 PDT 2017
On Wed, Jun 14, 2017 at 01:31:10PM +0200, Uwe Kleine-König wrote:
> Several device trees use something like:
>
> stdout-path = "serial0:115200n8";
>
> Currently of_device_is_stdout_path fails to do the right thing here
> because it expects an absolute node path and no options. So split off
> options (everything after the colon) and resolve aliases.
>
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig at pengutronix.de>
> ---
> drivers/of/base.c | 12 +++++++++++-
> 1 file changed, 11 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/of/base.c b/drivers/of/base.c
> index 592ebb015a73..e401c11a878f 100644
> --- a/drivers/of/base.c
> +++ b/drivers/of/base.c
> @@ -1999,6 +1999,7 @@ int of_device_is_stdout_path(struct device_d *dev)
> {
> struct device_node *dn;
> const char *name;
> + char *q;
>
> if (!dev->device_node)
> return 0;
> @@ -2010,7 +2011,16 @@ int of_device_is_stdout_path(struct device_d *dev)
> if (!name)
> return 0;
>
> - dn = of_find_node_by_path(name);
> + /* This could make use of strchrnul it it were available */
s/it it/if it/
> + q = strchr(name, ':');
This results in:
drivers/of/base.c:2017:4: warning: assignment discards 'const' qualifier from pointer target type
Sascha
--
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