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author | David S. Miller <davem@davemloft.net> | 2011-08-07 23:20:26 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2011-08-07 23:20:26 -0700 |
commit | 19fd61785a580c60cba900c5171bfadb57dd5056 (patch) | |
tree | 1e491fb014be0dc03f4b6755bb94e73afd38c455 /arch/arm/mach-msm/include/mach/msm_gpiomux.h | |
parent | 57569d0e12eaf31717e295960cd2a26f626c8e5b (diff) | |
parent | 8028837d71ba9904b17281b40f94b93e947fbe38 (diff) | |
download | linux-19fd61785a580c60cba900c5171bfadb57dd5056.tar.gz |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'arch/arm/mach-msm/include/mach/msm_gpiomux.h')
-rw-r--r-- | arch/arm/mach-msm/include/mach/msm_gpiomux.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/arm/mach-msm/include/mach/msm_gpiomux.h b/arch/arm/mach-msm/include/mach/msm_gpiomux.h new file mode 100644 index 000000000000..0c7d3936e02f --- /dev/null +++ b/arch/arm/mach-msm/include/mach/msm_gpiomux.h @@ -0,0 +1,38 @@ +/* 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 */ |