| /* Copyright (c) 2011, Code Aurora Forum. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #ifndef _LINUX_MSM_GPIOMUX_H |
| #define _LINUX_MSM_GPIOMUX_H |
| |
| #ifdef CONFIG_MSM_GPIOMUX |
| |
| /* Increment a gpio's reference count, possibly activating the line. */ |
| int __must_check msm_gpiomux_get(unsigned gpio); |
| |
| /* Decrement a gpio's reference count, possibly suspending the line. */ |
| int msm_gpiomux_put(unsigned gpio); |
| |
| #else |
| |
| static inline int __must_check msm_gpiomux_get(unsigned gpio) |
| { |
| return -ENOSYS; |
| } |
| |
| static inline int msm_gpiomux_put(unsigned gpio) |
| { |
| return -ENOSYS; |
| } |
| |
| #endif |
| |
| #endif /* _LINUX_MSM_GPIOMUX_H */ |
