On 1/24/19 12:08 PM, Florian Fainelli wrote:
> Since c32569e358ad ("regulator: Use of_node_name_eq for node name
> comparisons") Vivien reported the mc13892-regulator complaining about
> not being able to find regulators.
>
> This is because prior to that commit we used of_node_cmp() to compare
> the regulator array passed from mc13892_regulators down to
> mc13xxx_parse_regulators_dt() and they are all defined in uppercase
> letters by the MC13892_*_DEFINE* macros, whereas they are defined as
> lowercase in the DTS.
>
> Fix this by use strncasecmp() since that makes sure the comparison is
> case insensitive like what of_node_cmp() did.
>
> Reported-by: Vivien Didelot <[email protected]>
> Fixes: c32569e358ad ("regulator: Use of_node_name_eq for node name
> comparisons")
> Signed-off-by: Florian Fainelli <[email protected]>
> ---
> drivers/of/base.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/of/base.c b/drivers/of/base.c
> index 5226e898476e..ff47c86277cb 100644
> --- a/drivers/of/base.c
> +++ b/drivers/of/base.c
> @@ -66,7 +66,8 @@ bool of_node_name_eq(const struct device_node *np, const
> char *name)
> node_name = kbasename(np->full_name);
> len = strchrnul(node_name, '@') - node_name;
>
> - return (strlen(name) == len) && (strncmp(node_name, name, len) == 0);
> + return (strlen(name) == len) &&
> + (strncasecmp(node_name, name, len) == 0);
> }
> EXPORT_SYMBOL(of_node_name_eq);
>
>
Node names are case sensitive. Please fix mc13xxx_parse_regulators_dt() to
properly handle case instead of changing of_node_name_eq().
-Frank
