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| author | Dong Aisheng <dong.aisheng@linaro.org> | 2012-09-05 10:57:13 +0800 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2012-09-17 15:24:14 +0200 |
| commit | 87d687301f380729ec320619f100f3ba39f3693d (patch) | |
| tree | 3f6f274a01552da3b5f7af4dc1eaaad04a11c1b4 /include/linux/mfd/syscon.h | |
| parent | a435ae1d51e2f18414f2a87219fdbe068231e692 (diff) | |
| download | op-kernel-dev-87d687301f380729ec320619f100f3ba39f3693d.zip op-kernel-dev-87d687301f380729ec320619f100f3ba39f3693d.tar.gz | |
mfd: Add syscon driver based on regmap
Add regmap based syscon driver.
This is usually used for access misc bits in registers which does not belong
to a specific module, for example, IMX IOMUXC GPR and ANATOP.
With this driver, client can use generic regmap API to access registers
which are registered into syscon.
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'include/linux/mfd/syscon.h')
| -rw-r--r-- | include/linux/mfd/syscon.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/include/linux/mfd/syscon.h b/include/linux/mfd/syscon.h new file mode 100644 index 0000000..6aeb6b8 --- /dev/null +++ b/include/linux/mfd/syscon.h @@ -0,0 +1,23 @@ +/* + * System Control Driver + * + * Copyright (C) 2012 Freescale Semiconductor, Inc. + * Copyright (C) 2012 Linaro Ltd. + * + * Author: Dong Aisheng <dong.aisheng@linaro.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef __LINUX_MFD_SYSCON_H__ +#define __LINUX_MFD_SYSCON_H__ + +extern struct regmap *syscon_node_to_regmap(struct device_node *np); +extern struct regmap *syscon_regmap_lookup_by_compatible(const char *s); +extern struct regmap *syscon_regmap_lookup_by_phandle( + struct device_node *np, + const char *property); +#endif /* __LINUX_MFD_SYSCON_H__ */ |
