| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Standard pin control state definitions |
| */ |
| |
| #ifndef __LINUX_PINCTRL_PINCTRL_STATE_H |
| #define __LINUX_PINCTRL_PINCTRL_STATE_H |
| |
| /** |
| * @PINCTRL_STATE_DEFAULT: the state the pinctrl handle shall be put |
| * into as default, usually this means the pins are up and ready to |
| * be used by the device driver. This state is commonly used by |
| * hogs to configure muxing and pins at boot, and also as a state |
| * to go into when returning from sleep and idle in |
| * .pm_runtime_resume() or ordinary .resume() for example. |
| * @PINCTRL_STATE_INIT: normally the pinctrl will be set to "default" |
| * before the driver's probe() function is called. There are some |
| * drivers where that is not appropriate becausing doing so would |
| * glitch the pins. In those cases you can add an "init" pinctrl |
| * which is the state of the pins before drive probe. After probe |
| * if the pins are still in "init" state they'll be moved to |
| * "default". |
| * @PINCTRL_STATE_IDLE: the state the pinctrl handle shall be put into |
| * when the pins are idle. This is a state where the system is relaxed |
| * but not fully sleeping - some power may be on but clocks gated for |
| * example. Could typically be set from a pm_runtime_suspend() or |
| * pm_runtime_idle() operation. |
| * @PINCTRL_STATE_SLEEP: the state the pinctrl handle shall be put into |
| * when the pins are sleeping. This is a state where the system is in |
| * its lowest sleep state. Could typically be set from an |
| * ordinary .suspend() function. |
| */ |
| #define PINCTRL_STATE_DEFAULT "default" |
| #define PINCTRL_STATE_INIT "init" |
| #define PINCTRL_STATE_IDLE "idle" |
| #define PINCTRL_STATE_SLEEP "sleep" |
| |
| #endif /* __LINUX_PINCTRL_PINCTRL_STATE_H */ |
