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w1: core: match sub-nodes of bus masters in devicetree

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Once a new slave device is detected, match it against all sub-nodes of the
master bus controller. If a match is found, set the slave device's of_node
pointer.

Signed-off-by: Daniel Mack <[email protected]>
Signed-off-by: Sebastian Reichel <[email protected]>
This commit is contained in:
Daniel Mack 2018-07-06 07:35:50 +02:00 • committed by Sebastian Reichel
commit fae68031f7
2 changed files with 5 additions and 0 deletions
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3
drivers/w1/w1.c
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@ -26,6 +26,7 @@
#include <linux/kthread.h>
#include <linux/freezer.h>
#include <linux/hwmon.h>
#include <linux/of.h>
#include <linux/atomic.h>
@ -686,6 +687,8 @@ static int __w1_attach_slave_device(struct w1_slave *sl)
sl->dev.bus = &w1_bus_type;
sl->dev.release = &w1_slave_release;
sl->dev.groups = w1_slave_groups;
sl->dev.of_node = of_find_matching_node(sl->master->dev.of_node,
sl->family->of_match_table);
dev_set_name(&sl->dev, "%02x-%012llx",
(unsigned int) sl->reg_num.family,