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authorBartosz Golaszewski <bgolaszewski@baylibre.com>2018-03-23 16:04:48 +0300
committerPhilipp Zabel <p.zabel@pengutronix.de>2018-03-27 11:39:47 +0300
commite2749bb998701e21cdb8b34486b82fc1c051ab41 (patch)
treec556d6f584df155e4ab6f56f88f4a4f928f4e836 /include/linux/reset-controller.h
parent6691dffab0ab6301bb7b489b1dcf9f5efdef202f (diff)
downloadlinux-e2749bb998701e21cdb8b34486b82fc1c051ab41.tar.xz
reset: modify the way reset lookup works for board files
Commit 7af1bb19f1d7 ("reset: add support for non-DT systems") introduced reset control lookup mechanism for boards that still use board files. The routine used to register lookup entries takes the corresponding reset_controlled_dev structure as argument. It's been determined however that for the first user of this new interface - davinci psc driver - it will be easier to register the lookup entries using the reset controller device name. This patch changes the way lookup entries are added. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> [p.zabel@pengutronix.de: added missing ERR_PTR] Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Diffstat (limited to 'include/linux/reset-controller.h')
-rw-r--r--include/linux/reset-controller.h14
1 files changed, 8 insertions, 6 deletions
diff --git a/include/linux/reset-controller.h b/include/linux/reset-controller.h
index 25698f6c1fae..9326d671b6e6 100644
--- a/include/linux/reset-controller.h
+++ b/include/linux/reset-controller.h
@@ -30,24 +30,25 @@ struct of_phandle_args;
* struct reset_control_lookup - represents a single lookup entry
*
* @list: internal list of all reset lookup entries
- * @rcdev: reset controller device controlling this reset line
+ * @provider: name of the reset controller device controlling this reset line
* @index: ID of the reset controller in the reset controller device
* @dev_id: name of the device associated with this reset line
* @con_id name of the reset line (can be NULL)
*/
struct reset_control_lookup {
struct list_head list;
- struct reset_controller_dev *rcdev;
+ const char *provider;
unsigned int index;
const char *dev_id;
const char *con_id;
};
-#define RESET_LOOKUP(_dev_id, _con_id, _index) \
+#define RESET_LOOKUP(_provider, _index, _dev_id, _con_id) \
{ \
+ .provider = _provider, \
+ .index = _index, \
.dev_id = _dev_id, \
.con_id = _con_id, \
- .index = _index, \
}
/**
@@ -57,6 +58,7 @@ struct reset_control_lookup {
* @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
+ * @dev: corresponding driver model device struct
* @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
@@ -68,6 +70,7 @@ struct reset_controller_dev {
struct module *owner;
struct list_head list;
struct list_head reset_control_head;
+ struct device *dev;
struct device_node *of_node;
int of_reset_n_cells;
int (*of_xlate)(struct reset_controller_dev *rcdev,
@@ -82,8 +85,7 @@ struct device;
int devm_reset_controller_register(struct device *dev,
struct reset_controller_dev *rcdev);
-void reset_controller_add_lookup(struct reset_controller_dev *rcdev,
- struct reset_control_lookup *lookup,
+void reset_controller_add_lookup(struct reset_control_lookup *lookup,
unsigned int num_entries);
#endif