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| author |   Guodong Xu <guodong.xu@linaro.org> | 2014-09-01 16:28:34 +0800 |
|---|---|---|
| committer |   Lee Jones <lee.jones@linaro.org> | 2014-09-26 08:23:43 +0100 |
| commit | 8bdf87b400271ebc7fbf71e117c299d19a97ebb4 (patch) | |
| tree | 236c32fe5eaf83e13a949cf95a8068afd92f9a68 /include/linux/mfd/hi6421-pmic.h | |
| parent | mfd: dt-bindings: Add Device Tree bindings for HI6421 (diff) | |
| download | linux-dev-8bdf87b400271ebc7fbf71e117c299d19a97ebb4.tar.xz linux-dev-8bdf87b400271ebc7fbf71e117c299d19a97ebb4.zip | |
mfd: Add HI6421 PMIC Core driver
This adds driver to support HiSilicon Hi6421 PMIC. Hi6421 includes multi-
functions, such as regulators, codec, ADCs, Coulomb counter, etc.
This driver includes core APIs _only_.
Drivers for individul components, like voltage regulators, are
implemented in corresponding driver directories and files.
Registers in Hi6421 are memory mapped, so using regmap-mmio API.
Signed-off-by: Guodong Xu <guodong.xu@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'include/linux/mfd/hi6421-pmic.h')
| -rw-r--r-- | include/linux/mfd/hi6421-pmic.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/include/linux/mfd/hi6421-pmic.h b/include/linux/mfd/hi6421-pmic.h new file mode 100644 index 000000000000..587273e35acf --- /dev/null +++ b/include/linux/mfd/hi6421-pmic.h @@ -0,0 +1,41 @@ +/* + * Header file for device driver Hi6421 PMIC + * + * Copyright (c) <2011-2014> HiSilicon Technologies Co., Ltd. + * http://www.hisilicon.com + * Copyright (c) <2013-2014> Linaro Ltd. + * http://www.linaro.org + * + * Author: Guodong Xu <guodong.xu@linaro.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __HI6421_PMIC_H +#define __HI6421_PMIC_H + +/* Hi6421 registers are mapped to memory bus in 4 bytes stride */ +#define HI6421_REG_TO_BUS_ADDR(x) (x << 2) + +/* Hi6421 maximum register number */ +#define HI6421_REG_MAX 0xFF + +/* Hi6421 OCP (over current protection) and DEB (debounce) control register */ +#define HI6421_OCP_DEB_CTRL_REG HI6421_REG_TO_BUS_ADDR(0x51) +#define HI6421_OCP_DEB_SEL_MASK 0x0C +#define HI6421_OCP_DEB_SEL_8MS 0x00 +#define HI6421_OCP_DEB_SEL_16MS 0x04 +#define HI6421_OCP_DEB_SEL_32MS 0x08 +#define HI6421_OCP_DEB_SEL_64MS 0x0C +#define HI6421_OCP_EN_DEBOUNCE_MASK 0x02 +#define HI6421_OCP_EN_DEBOUNCE_ENABLE 0x02 +#define HI6421_OCP_AUTO_STOP_MASK 0x01 +#define HI6421_OCP_AUTO_STOP_ENABLE 0x01 + +struct hi6421_pmic { + struct regmap *regmap; +}; + +#endif /* __HI6421_PMIC_H */ |