diff options
| -rw-r--r-- | Documentation/devicetree/bindings/vendor-prefixes.txt | 3 | ||||
| -rw-r--r-- | drivers/of/base.c | 95 |
2 files changed, 76 insertions, 22 deletions
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 902b1b1f568e..4519dff3f506 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -14,6 +14,7 @@ bosch Bosch Sensortec GmbH brcm Broadcom Corporation cavium Cavium, Inc. chrp Common Hardware Reference Platform +cirrus Cirrus Logic, Inc. cortina Cortina Systems, Inc. dallas Maxim Integrated Products (formerly Dallas Semiconductor) denx Denx Software Engineering @@ -42,6 +43,7 @@ powervr PowerVR (deprecated, use img) qcom Qualcomm, Inc. ramtron Ramtron International realtek Realtek Semiconductor Corp. +renesas Renesas Electronics Corporation samsung Samsung Semiconductor sbs Smart Battery System schindler Schindler @@ -52,6 +54,7 @@ snps Synopsys, Inc. st STMicroelectronics stericsson ST-Ericsson ti Texas Instruments +toshiba Toshiba Corporation via VIA Technologies, Inc. wlf Wolfson Microelectronics wm Wondermedia Technologies, Inc. diff --git a/drivers/of/base.c b/drivers/of/base.c index d1bb50719ed7..8b9fa83dc77b 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -147,16 +147,14 @@ void of_node_put(struct device_node *node) EXPORT_SYMBOL(of_node_put); #endif /* CONFIG_OF_DYNAMIC */ -struct property *of_find_property(const struct device_node *np, - const char *name, - int *lenp) +static struct property *__of_find_property(const struct device_node *np, + const char *name, int *lenp) { struct property *pp; if (!np) return NULL; - read_lock(&devtree_lock); for (pp = np->properties; pp; pp = pp->next) { if (of_prop_cmp(pp->name, name) == 0) { if (lenp) @@ -164,6 +162,18 @@ struct property *of_find_property(const struct device_node *np, break; } } + + return pp; +} + +struct property *of_find_property(const struct device_node *np, + const char *name, + int *lenp) +{ + struct property *pp; + + read_lock(&devtree_lock); + pp = __of_find_property(np, name, lenp); read_unlock(&devtree_lock); return pp; @@ -197,8 +207,20 @@ EXPORT_SYMBOL(of_find_all_nodes); * Find a property with a given name for a given node * and return the value. */ +static const void *__of_get_property(const struct device_node *np, + const char *name, int *lenp) +{ + struct property *pp = __of_find_property(np, name, lenp); + + return pp ? pp->value : NULL; +} + +/* + * Find a property with a given name for a given node + * and return the value. + */ const void *of_get_property(const struct device_node *np, const char *name, - int *lenp) + int *lenp) { struct property *pp = of_find_property(np, name, lenp); @@ -209,13 +231,13 @@ EXPORT_SYMBOL(of_get_property); /** Checks if the given "compat" string matches one of the strings in * the device's "compatible" property */ -int of_device_is_compatible(const struct device_node *device, - const char *compat) +static int __of_device_is_compatible(const struct device_node *device, + const char *compat) { const char* cp; int cplen, l; - cp = of_get_property(device, "compatible", &cplen); + cp = __of_get_property(device, "compatible", &cplen); if (cp == NULL) return 0; while (cplen > 0) { @@ -228,6 +250,20 @@ int of_device_is_compatible(const struct device_node *device, return 0; } + +/** Checks if the given "compat" string matches one of the strings in + * the device's "compatible" property + */ +int of_device_is_compatible(const struct device_node *device, + const char *compat) +{ + int res; + + read_lock(&devtree_lock); + res = __of_device_is_compatible(device, compat); + read_unlock(&devtree_lock); + return res; +} EXPORT_SYMBOL(of_device_is_compatible); /** @@ -501,7 +537,8 @@ struct device_node *of_find_compatible_node(struct device_node *from, if (type && !(np->type && (of_node_cmp(np->type, type) == 0))) continue; - if (of_device_is_compatible(np, compatible) && of_node_get(np)) + if (__of_device_is_compatible(np, compatible) && + of_node_get(np)) break; } of_node_put(from); @@ -545,15 +582,9 @@ out: } EXPORT_SYMBOL(of_find_node_with_property); -/** - * of_match_node - Tell if an device_node has a matching of_match structure - * @matches: array of of device match structures to search in - * @node: the of device structure to match against - * - * Low level utility function used by device matching. - */ -const struct of_device_id *of_match_node(const struct of_device_id *matches, - const struct device_node *node) +static +const struct of_device_id *__of_match_node(const struct of_device_id *matches, + const struct device_node *node) { if (!matches) return NULL; @@ -567,14 +598,32 @@ const struct of_device_id *of_match_node(const struct of_device_id *matches, match &= node->type && !strcmp(matches->type, node->type); if (matches->compatible[0]) - match &= of_device_is_compatible(node, - matches->compatible); + match &= __of_device_is_compatible(node, + matches->compatible); if (match) return matches; matches++; } return NULL; } + +/** + * of_match_node - Tell if an device_node has a matching of_match structure + * @matches: array of of device match structures to search in + * @node: the of device structure to match against + * + * Low level utility function used by device matching. + */ +const struct of_device_id *of_match_node(const struct of_device_id *matches, + const struct device_node *node) +{ + const struct of_device_id *match; + + read_lock(&devtree_lock); + match = __of_match_node(matches, node); + read_unlock(&devtree_lock); + return match; +} EXPORT_SYMBOL(of_match_node); /** @@ -595,6 +644,7 @@ struct device_node *of_find_matching_node_and_match(struct device_node *from, const struct of_device_id **match) { struct device_node *np; + const struct of_device_id *m; if (match) *match = NULL; @@ -602,9 +652,10 @@ struct device_node *of_find_matching_node_and_match(struct device_node *from, read_lock(&devtree_lock); np = from ? from->allnext : of_allnodes; for (; np; np = np->allnext) { - if (of_match_node(matches, np) && of_node_get(np)) { + m = __of_match_node(matches, np); + if (m && of_node_get(np)) { if (match) - *match = matches; + *match = m; break; } } |