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https://github.com/edk2-porting/linux-next.git
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befe5bdfbb
This moves the per-devices struct pinctrl handles and device map over from the pinmux part of the subsystem to the core pinctrl part. This makes the device handles core infrastructure with the goal of using these handles also for pin configuration, so that device drivers (or boards etc) will need one and only one handle to the pin control core. Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
103 lines
2.4 KiB
C
103 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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void pinmux_init_device_debugfs(struct dentry *devroot,
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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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p->func_selector = UINT_MAX;
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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_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 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 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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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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