reset: Share struct reset_control between reset_control_get calls
Now that struct reset_control no longer stores the device pointer for
the device calling reset_control_get we can share a single struct
reset_control when multiple calls to reset_control_get are made for
the same reset line (same id / index).
This is a preparation patch for adding support for shared reset lines.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
diff --git a/include/linux/reset-controller.h b/include/linux/reset-controller.h
index a3a5bcd..b91ba93 100644
--- a/include/linux/reset-controller.h
+++ b/include/linux/reset-controller.h
@@ -31,6 +31,7 @@
* @ops: a pointer to device specific struct reset_control_ops
* @owner: kernel module of the reset controller driver
* @list: internal list of reset controller devices
+ * @reset_control_head: head of internal list of requested reset controls
* @of_node: corresponding device tree node as phandle target
* @of_reset_n_cells: number of cells in reset line specifiers
* @of_xlate: translation function to translate from specifier as found in the
@@ -41,6 +42,7 @@
const struct reset_control_ops *ops;
struct module *owner;
struct list_head list;
+ struct list_head reset_control_head;
struct device_node *of_node;
int of_reset_n_cells;
int (*of_xlate)(struct reset_controller_dev *rcdev,