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13e80244ca
Add an API to get the pinctrl pins if it was initialized before driver probed. This API will be used in I2C core to get the device pinctrl information for recovery state change. Signed-off-by: Hanna Hawa <hhhawa@amazon.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Wolfram Sang <wsa@kernel.org>
77 lines
1.7 KiB
C
77 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Per-device information from the pin control system.
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* This is the stuff that get included into the device
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* core.
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*
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* Copyright (C) 2012 ST-Ericsson SA
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* Written on behalf of Linaro for ST-Ericsson
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* This interface is used in the core to keep track of pins.
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*
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* Author: Linus Walleij <linus.walleij@linaro.org>
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*/
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#ifndef PINCTRL_DEVINFO_H
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#define PINCTRL_DEVINFO_H
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struct device;
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#ifdef CONFIG_PINCTRL
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#include <linux/device.h>
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/* The device core acts as a consumer toward pinctrl */
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#include <linux/pinctrl/consumer.h>
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struct pinctrl;
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/**
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* struct dev_pin_info - pin state container for devices
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* @p: pinctrl handle for the containing device
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* @default_state: the default state for the handle, if found
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* @init_state: the state at probe time, if found
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* @sleep_state: the state at suspend time, if found
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* @idle_state: the state at idle (runtime suspend) time, if found
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*/
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struct dev_pin_info {
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struct pinctrl *p;
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struct pinctrl_state *default_state;
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struct pinctrl_state *init_state;
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#ifdef CONFIG_PM
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struct pinctrl_state *sleep_state;
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struct pinctrl_state *idle_state;
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#endif
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};
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extern int pinctrl_bind_pins(struct device *dev);
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extern int pinctrl_init_done(struct device *dev);
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static inline struct pinctrl *dev_pinctrl(struct device *dev)
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{
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if (!dev->pins)
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return NULL;
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return dev->pins->p;
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}
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#else
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/* Stubs if we're not using pinctrl */
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static inline int pinctrl_bind_pins(struct device *dev)
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{
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return 0;
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}
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static inline int pinctrl_init_done(struct device *dev)
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{
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return 0;
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}
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static inline struct pinctrl *dev_pinctrl(struct device *dev)
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{
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return NULL;
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}
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#endif /* CONFIG_PINCTRL */
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#endif /* PINCTRL_DEVINFO_H */
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