forked from Minki/linux
d4e3198736
At present, pinctrl_get() assumes that all matching mapping table entries have the same "function" value, albeit potentially applied to different pins/groups. This change removes this restriction; pinctrl_get() can now handle a set of mapping tables where different functions are applied to the various pins/groups. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
102 lines
2.4 KiB
C
102 lines
2.4 KiB
C
/*
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* Internal interface between the core pin control system and the
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* pinmux portions
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*
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* Copyright (C) 2011 ST-Ericsson SA
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* Written on behalf of Linaro for ST-Ericsson
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* Based on bits of regulator core, gpio core and clk core
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*
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* Author: Linus Walleij <linus.walleij@linaro.org>
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*
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* License terms: GNU General Public License (GPL) version 2
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*/
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#ifdef CONFIG_PINMUX
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int pinmux_check_ops(struct pinctrl_dev *pctldev);
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int pinmux_request_gpio(struct pinctrl_dev *pctldev,
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struct pinctrl_gpio_range *range,
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unsigned pin, unsigned gpio);
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void pinmux_free_gpio(struct pinctrl_dev *pctldev, unsigned pin,
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struct pinctrl_gpio_range *range);
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int pinmux_gpio_direction(struct pinctrl_dev *pctldev,
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struct pinctrl_gpio_range *range,
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unsigned pin, bool input);
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static inline void pinmux_init_pinctrl_handle(struct pinctrl *p)
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{
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INIT_LIST_HEAD(&p->groups);
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}
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int pinmux_apply_muxmap(struct pinctrl_dev *pctldev,
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struct pinctrl *p,
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struct device *dev,
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const char *devname,
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struct pinctrl_map const *map);
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void pinmux_put(struct pinctrl *p);
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int pinmux_enable(struct pinctrl *p);
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void pinmux_disable(struct pinctrl *p);
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void pinmux_init_device_debugfs(struct dentry *devroot,
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struct pinctrl_dev *pctldev);
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void pinmux_dbg_show(struct seq_file *s, struct pinctrl *p);
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#else
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static inline int pinmux_check_ops(struct pinctrl_dev *pctldev)
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{
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return 0;
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}
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static inline int pinmux_request_gpio(struct pinctrl_dev *pctldev,
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struct pinctrl_gpio_range *range,
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unsigned pin, unsigned gpio)
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{
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return 0;
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}
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static inline void pinmux_free_gpio(struct pinctrl_dev *pctldev,
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unsigned pin,
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struct pinctrl_gpio_range *range)
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{
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}
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static inline int pinmux_gpio_direction(struct pinctrl_dev *pctldev,
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struct pinctrl_gpio_range *range,
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unsigned pin, bool input)
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{
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return 0;
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}
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static inline void pinmux_init_pinctrl_handle(struct pinctrl *p)
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{
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}
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static inline int pinmux_apply_muxmap(struct pinctrl_dev *pctldev,
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struct pinctrl *p,
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struct device *dev,
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const char *devname,
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struct pinctrl_map const *map)
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{
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return 0;
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}
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static inline void pinmux_put(struct pinctrl *p)
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{
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}
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static inline int pinmux_enable(struct pinctrl *p)
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{
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}
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static inline void pinmux_disable(struct pinctrl *p)
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{
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}
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static inline void pinmux_init_device_debugfs(struct dentry *devroot,
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struct pinctrl_dev *pctldev)
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{
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}
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static inline void pinmux_dbg_show(struct seq_file *s, struct pinctrl *p)
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{
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}
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#endif
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