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- /* SPDX-License-Identifier: GPL-2.0-only */
- /*
- * Interface the pinconfig portions of the pinctrl subsystem
- *
- * Copyright (C) 2011 ST-Ericsson SA
- * Written on behalf of Linaro for ST-Ericsson
- * This interface is used in the core to keep track of pins.
- *
- * Author: Linus Walleij <[email protected]>
- */
- #ifndef __LINUX_PINCTRL_PINCONF_H
- #define __LINUX_PINCTRL_PINCONF_H
- #include <linux/types.h>
- struct pinctrl_dev;
- struct seq_file;
- /**
- * struct pinconf_ops - pin config operations, to be implemented by
- * pin configuration capable drivers.
- * @is_generic: for pin controllers that want to use the generic interface,
- * this flag tells the framework that it's generic.
- * @pin_config_get: get the config of a certain pin, if the requested config
- * is not available on this controller this should return -ENOTSUPP
- * and if it is available but disabled it should return -EINVAL
- * @pin_config_set: configure an individual pin
- * @pin_config_group_get: get configurations for an entire pin group; should
- * return -ENOTSUPP and -EINVAL using the same rules as pin_config_get.
- * @pin_config_group_set: configure all pins in a group
- * @pin_config_dbg_show: optional debugfs display hook that will provide
- * per-device info for a certain pin in debugfs
- * @pin_config_group_dbg_show: optional debugfs display hook that will provide
- * per-device info for a certain group in debugfs
- * @pin_config_config_dbg_show: optional debugfs display hook that will decode
- * and display a driver's pin configuration parameter
- */
- struct pinconf_ops {
- #ifdef CONFIG_GENERIC_PINCONF
- bool is_generic;
- #endif
- int (*pin_config_get) (struct pinctrl_dev *pctldev,
- unsigned pin,
- unsigned long *config);
- int (*pin_config_set) (struct pinctrl_dev *pctldev,
- unsigned pin,
- unsigned long *configs,
- unsigned num_configs);
- int (*pin_config_group_get) (struct pinctrl_dev *pctldev,
- unsigned selector,
- unsigned long *config);
- int (*pin_config_group_set) (struct pinctrl_dev *pctldev,
- unsigned selector,
- unsigned long *configs,
- unsigned num_configs);
- void (*pin_config_dbg_show) (struct pinctrl_dev *pctldev,
- struct seq_file *s,
- unsigned offset);
- void (*pin_config_group_dbg_show) (struct pinctrl_dev *pctldev,
- struct seq_file *s,
- unsigned selector);
- void (*pin_config_config_dbg_show) (struct pinctrl_dev *pctldev,
- struct seq_file *s,
- unsigned long config);
- };
- #endif /* __LINUX_PINCTRL_PINCONF_H */
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