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The of_args field of struct reset_controller_dev was introduced to allow the reset-gpio driver to pass the phandle arguments back to reset core. The thing is: it doesn't even have to do it. The core sets the platform data of the auxiliary device *AND* has access to it later on during the lookup. This means the field is unneeded and all can happen entirely in reset core. Remove the field from the public header and don't set it in reset-gpio.c. Retrieve the platform data in reset core when needed instead. Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
82 lines
2.6 KiB
C
82 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_RESET_CONTROLLER_H_
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#define _LINUX_RESET_CONTROLLER_H_
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#include <linux/list.h>
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struct reset_controller_dev;
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/**
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* struct reset_control_ops - reset controller driver callbacks
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*
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* @reset: for self-deasserting resets, does all necessary
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* things to reset the device
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* @assert: manually assert the reset line, if supported
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* @deassert: manually deassert the reset line, if supported
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* @status: return the status of the reset line, if supported
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*/
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struct reset_control_ops {
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int (*reset)(struct reset_controller_dev *rcdev, unsigned long id);
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int (*assert)(struct reset_controller_dev *rcdev, unsigned long id);
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int (*deassert)(struct reset_controller_dev *rcdev, unsigned long id);
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int (*status)(struct reset_controller_dev *rcdev, unsigned long id);
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};
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struct module;
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struct device_node;
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struct of_phandle_args;
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/**
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* struct reset_controller_dev - reset controller entity that might
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* provide multiple reset controls
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* @ops: a pointer to device specific struct reset_control_ops
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* @owner: kernel module of the reset controller driver
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* @list: internal list of reset controller devices
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* @reset_control_head: head of internal list of requested reset controls
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* @dev: corresponding driver model device struct
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* @of_node: corresponding device tree node as phandle target
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* @of_reset_n_cells: number of cells in reset line specifiers
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* @of_xlate: translation function to translate from specifier as found in the
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* device tree to id as given to the reset control ops, defaults
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* to :c:func:`of_reset_simple_xlate`.
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* @nr_resets: number of reset controls in this reset controller device
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*/
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struct reset_controller_dev {
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const struct reset_control_ops *ops;
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struct module *owner;
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struct list_head list;
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struct list_head reset_control_head;
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struct device *dev;
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struct device_node *of_node;
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int of_reset_n_cells;
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int (*of_xlate)(struct reset_controller_dev *rcdev,
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const struct of_phandle_args *reset_spec);
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unsigned int nr_resets;
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};
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#if IS_ENABLED(CONFIG_RESET_CONTROLLER)
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int reset_controller_register(struct reset_controller_dev *rcdev);
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void reset_controller_unregister(struct reset_controller_dev *rcdev);
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struct device;
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int devm_reset_controller_register(struct device *dev,
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struct reset_controller_dev *rcdev);
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#else
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static inline int reset_controller_register(struct reset_controller_dev *rcdev)
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{
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return 0;
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}
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static inline void reset_controller_unregister(struct reset_controller_dev *rcdev)
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{
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}
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static inline int devm_reset_controller_register(struct device *dev,
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struct reset_controller_dev *rcdev)
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{
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return 0;
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}
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#endif
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#endif
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