Re: [PATCH] of: add of_find_child_by_name implementation
On 09/16/2012 05:24 PM, Karicheri, Muralidharan wrote: >>> -Original Message- >>> From: Karicheri, Muralidharan >>> Sent: Thursday, August 30, 2012 11:42 AM >>> To: grant.lik...@secretlab.ca; rob.herr...@calxeda.com; devicetree- >>> disc...@lists.ozlabs.org; linux-kernel@vger.kernel.org >>> Cc: Karicheri, Muralidharan; Chemparathy, Cyril >>> Subject: [PATCH] of: add of_find_child_by_name implementation >>> >>> This patch adds a helper to find a child node by name. >>> >>> Signed-off-by: Cyril Chemparathy >>> Signed-off-by: Murali Karicheri >>> --- >>> drivers/of/base.c | 20 >>> include/linux/of.h |2 ++ >>> 2 files changed, 22 insertions(+) >>> >>> diff --git a/drivers/of/base.c b/drivers/of/base.c >>> index d4a1c9a..bbdd0d4 100644 >>> --- a/drivers/of/base.c >>> +++ b/drivers/of/base.c >>> @@ -441,6 +441,26 @@ struct device_node *of_find_node_by_name(struct >>> device_node *from, >>> EXPORT_SYMBOL(of_find_node_by_name); >>> >>> /** >>> + * of_find_child_by_name - Find a child node by its "name" property >>> + * @parent:The parent node to search from >>> + * @name: The name string to match against >>> + * >>> + * Returns a node pointer with refcount incremented, use >>> + * of_node_put() on it when done. >>> + */ >>> +struct device_node *of_find_child_by_name(struct device_node *parent, >>> + const char *name) >>> +{ >>> + struct device_node *child; >>> + >>> + for_each_child_of_node(parent, child) >>> + if (child->name && of_node_cmp(child->name, name) == 0) >>> + break; >>> + return child; >>> +} >>> +EXPORT_SYMBOL(of_find_child_by_name); >>> + >>> +/** >>> * of_find_node_by_type - Find a node by its "device_type" property >>> * @from: The node to start searching from, or NULL to start searching >>> * the entire device tree. The node you pass will not be >>> diff --git a/include/linux/of.h b/include/linux/of.h >>> index 1b11632..a4cc8e7 100644 >>> --- a/include/linux/of.h >>> +++ b/include/linux/of.h >>> @@ -193,6 +193,8 @@ extern struct device_node *of_get_next_child(const >>> struct >>> device_node *node, >>> extern struct device_node *of_get_next_available_child( >>> const struct device_node *node, struct device_node *prev); >>> >>> +struct device_node *of_find_child_by_name(struct device_node *parent, >>> + const char *name); >>> #define for_each_child_of_node(parent, child) \ >>> for (child = of_get_next_child(parent, NULL); child != NULL; \ >>> child = of_get_next_child(parent, child)) >>> -- >>> 1.7.9.5 > > Can someone review this? If this is okay, can this be merged to the next > branch please? > This one does the same thing: http://www.mail-archive.com/devicetree-discuss@lists.ozlabs.org/msg18585.html Yours came first, but this one also converts several places to use it. So I plan to merge it once subsystem maintainers ack the conversions. Do you have something for 3.7 dependent on this? Rob -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
RE: [PATCH] of: add of_find_child_by_name implementation
>> -Original Message- >> From: Karicheri, Muralidharan >> Sent: Thursday, August 30, 2012 11:42 AM >> To: grant.lik...@secretlab.ca; rob.herr...@calxeda.com; devicetree- >> disc...@lists.ozlabs.org; linux-kernel@vger.kernel.org >> Cc: Karicheri, Muralidharan; Chemparathy, Cyril >> Subject: [PATCH] of: add of_find_child_by_name implementation >> >> This patch adds a helper to find a child node by name. >> >> Signed-off-by: Cyril Chemparathy >> Signed-off-by: Murali Karicheri >> --- >> drivers/of/base.c | 20 >> include/linux/of.h |2 ++ >> 2 files changed, 22 insertions(+) >> >> diff --git a/drivers/of/base.c b/drivers/of/base.c >> index d4a1c9a..bbdd0d4 100644 >> --- a/drivers/of/base.c >> +++ b/drivers/of/base.c >> @@ -441,6 +441,26 @@ struct device_node *of_find_node_by_name(struct >> device_node *from, >> EXPORT_SYMBOL(of_find_node_by_name); >> >> /** >> + * of_find_child_by_name - Find a child node by its "name" property >> + * @parent:The parent node to search from >> + * @name: The name string to match against >> + * >> + * Returns a node pointer with refcount incremented, use >> + * of_node_put() on it when done. >> + */ >> +struct device_node *of_find_child_by_name(struct device_node *parent, >> + const char *name) >> +{ >> +struct device_node *child; >> + >> +for_each_child_of_node(parent, child) >> +if (child->name && of_node_cmp(child->name, name) == 0) >> +break; >> +return child; >> +} >> +EXPORT_SYMBOL(of_find_child_by_name); >> + >> +/** >> * of_find_node_by_type - Find a node by its "device_type" property >> * @from: The node to start searching from, or NULL to start searching >> * the entire device tree. The node you pass will not be >> diff --git a/include/linux/of.h b/include/linux/of.h >> index 1b11632..a4cc8e7 100644 >> --- a/include/linux/of.h >> +++ b/include/linux/of.h >> @@ -193,6 +193,8 @@ extern struct device_node *of_get_next_child(const struct >> device_node *node, >> extern struct device_node *of_get_next_available_child( >> const struct device_node *node, struct device_node *prev); >> >> +struct device_node *of_find_child_by_name(struct device_node *parent, >> + const char *name); >> #define for_each_child_of_node(parent, child) \ >> for (child = of_get_next_child(parent, NULL); child != NULL; \ >> child = of_get_next_child(parent, child)) >> -- >> 1.7.9.5 Can someone review this? If this is okay, can this be merged to the next branch please? Murali -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
RE: [PATCH] of: add of_find_child_by_name implementation
-Original Message- From: Karicheri, Muralidharan Sent: Thursday, August 30, 2012 11:42 AM To: grant.lik...@secretlab.ca; rob.herr...@calxeda.com; devicetree- disc...@lists.ozlabs.org; linux-kernel@vger.kernel.org Cc: Karicheri, Muralidharan; Chemparathy, Cyril Subject: [PATCH] of: add of_find_child_by_name implementation This patch adds a helper to find a child node by name. Signed-off-by: Cyril Chemparathy cy...@ti.com Signed-off-by: Murali Karicheri m-kariche...@ti.com --- drivers/of/base.c | 20 include/linux/of.h |2 ++ 2 files changed, 22 insertions(+) diff --git a/drivers/of/base.c b/drivers/of/base.c index d4a1c9a..bbdd0d4 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -441,6 +441,26 @@ struct device_node *of_find_node_by_name(struct device_node *from, EXPORT_SYMBOL(of_find_node_by_name); /** + * of_find_child_by_name - Find a child node by its name property + * @parent:The parent node to search from + * @name: The name string to match against + * + * Returns a node pointer with refcount incremented, use + * of_node_put() on it when done. + */ +struct device_node *of_find_child_by_name(struct device_node *parent, + const char *name) +{ +struct device_node *child; + +for_each_child_of_node(parent, child) +if (child-name of_node_cmp(child-name, name) == 0) +break; +return child; +} +EXPORT_SYMBOL(of_find_child_by_name); + +/** * of_find_node_by_type - Find a node by its device_type property * @from: The node to start searching from, or NULL to start searching * the entire device tree. The node you pass will not be diff --git a/include/linux/of.h b/include/linux/of.h index 1b11632..a4cc8e7 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -193,6 +193,8 @@ extern struct device_node *of_get_next_child(const struct device_node *node, extern struct device_node *of_get_next_available_child( const struct device_node *node, struct device_node *prev); +struct device_node *of_find_child_by_name(struct device_node *parent, + const char *name); #define for_each_child_of_node(parent, child) \ for (child = of_get_next_child(parent, NULL); child != NULL; \ child = of_get_next_child(parent, child)) -- 1.7.9.5 Can someone review this? If this is okay, can this be merged to the next branch please? Murali -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] of: add of_find_child_by_name implementation
On 09/16/2012 05:24 PM, Karicheri, Muralidharan wrote: -Original Message- From: Karicheri, Muralidharan Sent: Thursday, August 30, 2012 11:42 AM To: grant.lik...@secretlab.ca; rob.herr...@calxeda.com; devicetree- disc...@lists.ozlabs.org; linux-kernel@vger.kernel.org Cc: Karicheri, Muralidharan; Chemparathy, Cyril Subject: [PATCH] of: add of_find_child_by_name implementation This patch adds a helper to find a child node by name. Signed-off-by: Cyril Chemparathy cy...@ti.com Signed-off-by: Murali Karicheri m-kariche...@ti.com --- drivers/of/base.c | 20 include/linux/of.h |2 ++ 2 files changed, 22 insertions(+) diff --git a/drivers/of/base.c b/drivers/of/base.c index d4a1c9a..bbdd0d4 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -441,6 +441,26 @@ struct device_node *of_find_node_by_name(struct device_node *from, EXPORT_SYMBOL(of_find_node_by_name); /** + * of_find_child_by_name - Find a child node by its name property + * @parent:The parent node to search from + * @name: The name string to match against + * + * Returns a node pointer with refcount incremented, use + * of_node_put() on it when done. + */ +struct device_node *of_find_child_by_name(struct device_node *parent, + const char *name) +{ + struct device_node *child; + + for_each_child_of_node(parent, child) + if (child-name of_node_cmp(child-name, name) == 0) + break; + return child; +} +EXPORT_SYMBOL(of_find_child_by_name); + +/** * of_find_node_by_type - Find a node by its device_type property * @from: The node to start searching from, or NULL to start searching * the entire device tree. The node you pass will not be diff --git a/include/linux/of.h b/include/linux/of.h index 1b11632..a4cc8e7 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -193,6 +193,8 @@ extern struct device_node *of_get_next_child(const struct device_node *node, extern struct device_node *of_get_next_available_child( const struct device_node *node, struct device_node *prev); +struct device_node *of_find_child_by_name(struct device_node *parent, + const char *name); #define for_each_child_of_node(parent, child) \ for (child = of_get_next_child(parent, NULL); child != NULL; \ child = of_get_next_child(parent, child)) -- 1.7.9.5 Can someone review this? If this is okay, can this be merged to the next branch please? This one does the same thing: http://www.mail-archive.com/devicetree-discuss@lists.ozlabs.org/msg18585.html Yours came first, but this one also converts several places to use it. So I plan to merge it once subsystem maintainers ack the conversions. Do you have something for 3.7 dependent on this? Rob -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/