On Thu, 2019-01-24 at 12:08 -0800, 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 <vivien.didelot@xxxxxxxxx> > Fixes: c32569e358ad ("regulator: Use of_node_name_eq for node name comparisons") > Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx> Then likely of_node_name_prefix should also use case insensitive matching. --- diff --git a/drivers/of/base.c b/drivers/of/base.c index 5226e898476e..87a0bd7ef45e 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -75,7 +75,8 @@ bool of_node_name_prefix(const struct device_node *np, const char *prefix) if (!np) return false; - return strncmp(kbasename(np->full_name), prefix, strlen(prefix)) == 0; + return strncasecmp(kbasename(np->full_name), + prefix, strlen(prefix)) == 0; } EXPORT_SYMBOL(of_node_name_prefix);