From f46b24d4df096465dac18f58889dade473bddf3e Mon Sep 17 00:00:00 2001 From: Guodong Xu Date: Thu, 15 Aug 2013 16:50:36 +0800 Subject: mfd: Support HiSilicon Hi6421 PMIC Add support of HiSilicon Hi6421 in mfd. Hi6421 is a power management and codec IC from HiSilicon Inc., which includes regulators, codec, ADCs, Coulomb counter, etc. The way to communitcate with Hi6421 is through memory mapped I/O ports. Signed-off-by: Guodong Xu Signed-off-by: Haojian Zhuang --- include/linux/mfd/hi6421-pmic.h | 84 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 84 insertions(+) create mode 100644 include/linux/mfd/hi6421-pmic.h (limited to 'include') diff --git a/include/linux/mfd/hi6421-pmic.h b/include/linux/mfd/hi6421-pmic.h new file mode 100644 index 000000000000..2f875cf52ae9 --- /dev/null +++ b/include/linux/mfd/hi6421-pmic.h @@ -0,0 +1,84 @@ +/* + * Header file for device driver Hi6421 PMIC + * + * Copyright (c) 2013 Linaro Ltd. + * Copyright (C) 2011 Hisilicon. + * + * Guodong Xu + * + * 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. + * + * 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. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef __HI6421_PMIC_H +#define __HI6421_PMIC_H + +#include + +#define OCP_DEB_CTRL_REG (0x51) +#define OCP_DEB_SEL_MASK (0x0C) +#define OCP_DEB_SEL_8MS (0x00) +#define OCP_DEB_SEL_16MS (0x04) +#define OCP_DEB_SEL_32MS (0x08) +#define OCP_DEB_SEL_64MS (0x0C) +#define OCP_EN_DEBOUNCE_MASK (0x02) +#define OCP_EN_DEBOUNCE_ENABLE (0x02) +#define OCP_AUTO_STOP_MASK (0x01) +#define OCP_AUTO_STOP_ENABLE (0x01) +#define HI6421_REGS_ENA_PROTECT_TIME (100) /* in microseconds */ +#define HI6421_ECO_MODE_ENABLE (1) +#define HI6421_ECO_MODE_DISABLE (0) + +#define HI6421_NR_IRQ 24 +#define HI6421_MASK_FIELD 0xFF +#define HI6421_BITS 8 + +#define HI6421_IRQ_ALARM 0 /* RTC Alarm */ +#define HI6421_IRQ_OTMP 1 /* Temperature too high */ +#define HI6421_IRQ_OCP 2 /* BUCK/LDO overload */ +#define HI6421_IRQ_RESET_IN 3 /* RESETIN_N signal */ +#define HI6421_IRQ_ONKEY_10S 4 /* PWRON key hold for 10s */ +#define HI6421_IRQ_ONKEY_1S 5 /* PWRON key hold for 1s */ +#define HI6421_IRQ_ONKEY_UP 6 /* PWRON key released */ +#define HI6421_IRQ_ONKEY_DOWN 7 /* PWRON key pressed */ +#define HI6421_IRQ_HEADSET_OUT 8 /* Headset plugged out */ +#define HI6421_IRQ_HEADSET_IN 9 /* Headset plugged in */ +#define HI6421_IRQ_COULOMB 10 /* Coulomb Counter */ +#define HI6421_IRQ_VBUS_UP 11 /* VBUS rising */ +#define HI6421_IRQ_VBUS_DOWN 12 /* VBUS falling */ +#define HI6421_IRQ_VBAT_LOW 13 /* VBattery too low */ +#define HI6421_IRQ_VBAT_HIGH 14 /* VBattery overvoltage */ +#define HI6421_IRQ_CHARGE_IN1 15 /* Charger plugged in */ +#define HI6421_IRQ_CHARGE_IN3 16 /* Charger plugged in */ +#define HI6421_IRQ_CHARGE_IN2 17 /* Charger plugged in */ +#define HI6421_IRQ_HS_BTN_DOWN 18 /* Headset button pressed */ +#define HI6421_IRQ_HS_BTN_UP 19 /* Headset button released */ +#define HI6421_IRQ_BATTERY_ON 20 /* Battery inserted */ +#define HI6421_IRQ_RESET 21 /* Reset */ + +struct hi6421_pmic { + struct resource *res; + struct device *dev; + void __iomem *regs; + spinlock_t lock; + struct irq_domain *domain; + int irq; + int gpio; +}; + +/* Register Access Helpers */ +u32 hi6421_pmic_read(struct hi6421_pmic *pmic, int reg); +void hi6421_pmic_write(struct hi6421_pmic *pmic, int reg, u32 val); +void hi6421_pmic_rmw(struct hi6421_pmic *pmic, int reg, u32 mask, u32 bits); + +#endif /* __HI6421_PMIC_H */ -- cgit v1.2.3