mfd: tps65086: Add driver for the TPS65086 PMIC

Add support for the TPS65912 device. It provides communication
through I2C and contains the following components:

 - Regulators
 - Load switches
 - GPO controller

Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

include/linux/mfd/tps65086.h

@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
+ *	Andrew F. Davis <afd@ti.com>
+ *
+ * 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 "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether expressed or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License version 2 for more details.
+ *
+ * Based on the TPS65912 driver
+ */
+
+#ifndef __LINUX_MFD_TPS65086_H
+#define __LINUX_MFD_TPS65086_H
+
+#include <linux/device.h>
+#include <linux/regmap.h>
+
+/* List of registers for TPS65086 */
+#define TPS65086_DEVICEID		0x01
+#define TPS65086_IRQ			0x02
+#define TPS65086_IRQ_MASK		0x03
+#define TPS65086_PMICSTAT		0x04
+#define TPS65086_SHUTDNSRC		0x05
+#define TPS65086_BUCK1CTRL		0x20
+#define TPS65086_BUCK2CTRL		0x21
+#define TPS65086_BUCK3DECAY		0x22
+#define TPS65086_BUCK3VID		0x23
+#define TPS65086_BUCK3SLPCTRL		0x24
+#define TPS65086_BUCK4CTRL		0x25
+#define TPS65086_BUCK5CTRL		0x26
+#define TPS65086_BUCK6CTRL		0x27
+#define TPS65086_LDOA2CTRL		0x28
+#define TPS65086_LDOA3CTRL		0x29
+#define TPS65086_DISCHCTRL1		0x40
+#define TPS65086_DISCHCTRL2		0x41
+#define TPS65086_DISCHCTRL3		0x42
+#define TPS65086_PG_DELAY1		0x43
+#define TPS65086_FORCESHUTDN		0x91
+#define TPS65086_BUCK1SLPCTRL		0x92
+#define TPS65086_BUCK2SLPCTRL		0x93
+#define TPS65086_BUCK4VID		0x94
+#define TPS65086_BUCK4SLPVID		0x95
+#define TPS65086_BUCK5VID		0x96
+#define TPS65086_BUCK5SLPVID		0x97
+#define TPS65086_BUCK6VID		0x98
+#define TPS65086_BUCK6SLPVID		0x99
+#define TPS65086_LDOA2VID		0x9A
+#define TPS65086_LDOA3VID		0x9B
+#define TPS65086_BUCK123CTRL		0x9C
+#define TPS65086_PG_DELAY2		0x9D
+#define TPS65086_PIN_EN_MASK1		0x9E
+#define TPS65086_PIN_EN_MASK2		0x9F
+#define TPS65086_SWVTT_EN		0x9F
+#define TPS65086_PIN_EN_OVR1		0xA0
+#define TPS65086_PIN_EN_OVR2		0xA1
+#define TPS65086_GPOCTRL		0xA1
+#define TPS65086_PWR_FAULT_MASK1	0xA2
+#define TPS65086_PWR_FAULT_MASK2	0xA3
+#define TPS65086_GPO1PG_CTRL1		0xA4
+#define TPS65086_GPO1PG_CTRL2		0xA5
+#define TPS65086_GPO4PG_CTRL1		0xA6
+#define TPS65086_GPO4PG_CTRL2		0xA7
+#define TPS65086_GPO2PG_CTRL1		0xA8
+#define TPS65086_GPO2PG_CTRL2		0xA9
+#define TPS65086_GPO3PG_CTRL1		0xAA
+#define TPS65086_GPO3PG_CTRL2		0xAB
+#define TPS65086_LDOA1CTRL		0xAE
+#define TPS65086_PG_STATUS1		0xB0
+#define TPS65086_PG_STATUS2		0xB1
+#define TPS65086_PWR_FAULT_STATUS1	0xB2
+#define TPS65086_PWR_FAULT_STATUS2	0xB3
+#define TPS65086_TEMPCRIT		0xB4
+#define TPS65086_TEMPHOT		0xB5
+#define TPS65086_OC_STATUS		0xB6
+
+/* IRQ Register field definitions */
+#define TPS65086_IRQ_DIETEMP_MASK	BIT(0)
+#define TPS65086_IRQ_SHUTDN_MASK	BIT(3)
+#define TPS65086_IRQ_FAULT_MASK		BIT(7)
+
+/* DEVICEID Register field definitions */
+#define TPS65086_DEVICEID_PART_MASK	GENMASK(3, 0)
+#define TPS65086_DEVICEID_OTP_MASK	GENMASK(5, 4)
+#define TPS65086_DEVICEID_REV_MASK	GENMASK(7, 6)
+
+/* VID Masks */
+#define BUCK_VID_MASK			GENMASK(7, 1)
+#define VDOA1_VID_MASK			GENMASK(4, 1)
+#define VDOA23_VID_MASK			GENMASK(3, 0)
+
+/* Define the TPS65086 IRQ numbers */
+enum tps65086_irqs {
+	TPS65086_IRQ_DIETEMP,
+	TPS65086_IRQ_SHUTDN,
+	TPS65086_IRQ_FAULT,
+};
+
+/**
+ * struct tps65086 - state holder for the tps65086 driver
+ *
+ * Device data may be used to access the TPS65086 chip
+ */
+struct tps65086 {
+	struct device *dev;
+	struct regmap *regmap;
+
+	/* IRQ Data */
+	int irq;
+	struct regmap_irq_chip_data *irq_data;
+};
+
+#endif /* __LINUX_MFD_TPS65086_H */