@@ -9,6 +9,7 @@
*/
#include <linux/component.h>
#include <linux/device.h>
+#include <linux/idr.h>
#include <linux/kref.h>
#include <linux/list.h>
#include <linux/mutex.h>
@@ -64,7 +65,10 @@ struct master {
const struct component_master_ops *ops;
struct device *parent;
+ struct device dev;
struct component_match *match;
+
+ int id;
};
struct component {
@@ -80,6 +84,7 @@ struct component {
static DEFINE_MUTEX(component_mutex);
static LIST_HEAD(component_list);
static LIST_HEAD(masters);
+static DEFINE_IDA(aggregate_ida);
#ifdef CONFIG_DEBUG_FS
@@ -440,6 +445,7 @@ static void free_master(struct master *master)
}
}
+ ida_free(&aggregate_ida, master->id);
kfree(master);
}
@@ -460,7 +466,7 @@ int component_master_add_with_match(struct device *parent,
struct component_match *match)
{
struct master *master;
- int ret;
+ int ret, id;
/* Reallocate the match array for its true size */
ret = component_match_realloc(match, match->num);
@@ -471,9 +477,17 @@ int component_master_add_with_match(struct device *parent,
if (!master)
return -ENOMEM;
+ id = ida_alloc(&aggregate_ida, GFP_KERNEL);
+ if (id < 0) {
+ kfree(master);
+ return id;
+ }
+
+ master->id = id;
master->parent = parent;
master->ops = ops;
master->match = match;
+ dev_set_name(&master->dev, "aggregate%d", id);
component_master_debugfs_add(master);
/* Add to the list of available masters. */
Replace 'struct master' with 'struct aggregate_device' and then rename 'master' to 'adev' everywhere in the code. While we're here, put a struct device inside the aggregate device so that we can register it with a bus_type in the next patch. The diff is large but that's because this is mostly a rename, where sometimes 'master' is replaced with 'adev' and other times it is replaced with 'parent' to indicate that the struct device that was being used is actually the parent of the aggregate device and driver. Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Rob Clark <robdclark@gmail.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Saravana Kannan <saravanak@google.com> Signed-off-by: Stephen Boyd <swboyd@chromium.org> --- drivers/base/component.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-)