From: Thierry Reding treding@nvidia.com
Similarly to what can be done for device drivers, allow driver-specific data to be attached to a master. This is necessary for masters whose device is already bound to by a different driver and therefore cannot be used to store the driver-specific data.
Signed-off-by: Thierry Reding treding@nvidia.com --- drivers/base/component.c | 13 +++++++++++++ include/linux/component.h | 3 +++ 2 files changed, 16 insertions(+)
diff --git a/drivers/base/component.c b/drivers/base/component.c index 14fe81bf5ed2..e3693c6d552f 100644 --- a/drivers/base/component.c +++ b/drivers/base/component.c @@ -25,6 +25,8 @@ struct master {
const struct component_master_ops *ops; struct device *dev; + + void *drvdata; };
struct component { @@ -53,6 +55,17 @@ static struct master *__master_find(struct device *dev, return NULL; }
+void master_set_drvdata(struct master *master, void *data) +{ + if (master) + master->drvdata = data; +} + +void *master_get_drvdata(struct master *master) +{ + return master ? master->drvdata : NULL; +} + /* Attach an unattached component to a master. */ static void component_attach_master(struct master *master, struct component *c) { diff --git a/include/linux/component.h b/include/linux/component.h index 89fe8bb35053..9c2ec9fe48d6 100644 --- a/include/linux/component.h +++ b/include/linux/component.h @@ -25,6 +25,9 @@ int component_master_add(struct device *, const struct component_master_ops *); void component_master_del(struct device *, const struct component_master_ops *);
+void master_set_drvdata(struct master *, void *); +void *master_get_drvdata(struct master *); + int component_master_add_child(struct master *master, int (*compare)(struct device *, void *), void *compare_data);