diff options
| author | Guodong Xu <guodong.xu@linaro.org> | 2013-08-16 16:28:51 +0800 |
|---|---|---|
| committer | Andrey Konovalov <andrey.konovalov@linaro.org> | 2014-04-16 23:52:21 +0400 |
| commit | e11ce040a1fc556e00425a722de3b6c900e2450b (patch) | |
| tree | ef09d8b40ac7f80a3b56db7115e6b502a9b66394 /include/linux | |
| parent | 37e4edee5186248344363c4ec30c8538dfaa8e24 (diff) | |
regulator: hi6421: Add support to hi6421 regulators
Add support to hi6421 regulators. Hi6421 is a multi-functional PMIC
manufactured by HiSilicon Inc.
Signed-off-by: Guodong Xu <guodong.xu@linaro.org>
Acked-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mfd/hi6421-pmic.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/mfd/hi6421-pmic.h b/include/linux/mfd/hi6421-pmic.h index 2f875cf52ae..0b60a9b2a66 100644 --- a/include/linux/mfd/hi6421-pmic.h +++ b/include/linux/mfd/hi6421-pmic.h @@ -24,6 +24,8 @@ #define __HI6421_PMIC_H #include <linux/irqdomain.h> +#include <linux/mutex.h> +#include <linux/time.h> #define OCP_DEB_CTRL_REG (0x51) #define OCP_DEB_SEL_MASK (0x0C) @@ -66,6 +68,17 @@ #define HI6421_IRQ_BATTERY_ON 20 /* Battery inserted */ #define HI6421_IRQ_RESET 21 /* Reset */ +/** + * struct hi6421_pmic - Hi6421 PMIC chip-level data structure. + * + * This struct describes Hi6421 PMIC chip-level data. + * + * @enable_mutex: Used by regulators, to make sure that only one regulator is + * in the turning-on phase at any time. See also @last_enabled + * and hi6421_regulator_enable(). + * @last_enabled: Used by regulators, to make sure enough distance in time + * between enabling of any of two regulators. + */ struct hi6421_pmic { struct resource *res; struct device *dev; @@ -74,6 +87,8 @@ struct hi6421_pmic { struct irq_domain *domain; int irq; int gpio; + struct mutex enable_mutex; + struct timeval last_enabled; }; /* Register Access Helpers */ |