xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

reset: modify the way reset lookup works for board files

Browse Source 
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>
This commit is contained in:
Bartosz Golaszewski
2018-03-23 14:04:48 +01:00
committed by Philipp Zabel
parent 6691dffab0
commit e2749bb998
2 changed files with 39 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
include/linux/reset-controller.h
View File

@@ -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