devinfo.h 1.4 KB

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  1. /* SPDX-License-Identifier: GPL-2.0-only */
  2. /*
  3. * Per-device information from the pin control system.
  4. * This is the stuff that get included into the device
  5. * core.
  6. *
  7. * Copyright (C) 2012 ST-Ericsson SA
  8. * Written on behalf of Linaro for ST-Ericsson
  9. * This interface is used in the core to keep track of pins.
  10. *
  11. * Author: Linus Walleij <[email protected]>
  12. */
  13. #ifndef PINCTRL_DEVINFO_H
  14. #define PINCTRL_DEVINFO_H
  15. #ifdef CONFIG_PINCTRL
  16. /* The device core acts as a consumer toward pinctrl */
  17. #include <linux/pinctrl/consumer.h>
  18. /**
  19. * struct dev_pin_info - pin state container for devices
  20. * @p: pinctrl handle for the containing device
  21. * @default_state: the default state for the handle, if found
  22. * @init_state: the state at probe time, if found
  23. * @sleep_state: the state at suspend time, if found
  24. * @idle_state: the state at idle (runtime suspend) time, if found
  25. */
  26. struct dev_pin_info {
  27. struct pinctrl *p;
  28. struct pinctrl_state *default_state;
  29. struct pinctrl_state *init_state;
  30. #ifdef CONFIG_PM
  31. struct pinctrl_state *sleep_state;
  32. struct pinctrl_state *idle_state;
  33. #endif
  34. };
  35. extern int pinctrl_bind_pins(struct device *dev);
  36. extern int pinctrl_init_done(struct device *dev);
  37. #else
  38. struct device;
  39. /* Stubs if we're not using pinctrl */
  40. static inline int pinctrl_bind_pins(struct device *dev)
  41. {
  42. return 0;
  43. }
  44. static inline int pinctrl_init_done(struct device *dev)
  45. {
  46. return 0;
  47. }
  48. #endif /* CONFIG_PINCTRL */
  49. #endif /* PINCTRL_DEVINFO_H */