mfd: da9063: Add Dialog DA9063 core driver

This is MFD module providing access to registers and interrupts of DA906x
series PMIC. It is used by other functional modules, registered as MFD cells.
Driver uses regmap with paging to access extended register list. Register map
is divided into two pages, where the second page is used during initialisation.

This module provides support to following functional cells:
 - Regulators
 - RTC
 - HWMON
 - OnKey (power key misc input device)
 - Vibration (force-feedback input device)
 - Watchdog
 - LEDs

Signed-off-by: Krystian Garbaciak <krystian.garbaciak@diasemi.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

2 files changed, 166 insertions, 0 deletions

diff --git a/include/linux/mfd/da9063/core.h b/include/linux/mfd/da9063/core.h
new file mode 100644
index 000000000000..ec2fd2aa24ae
--- /dev/null
+++ b/include/linux/mfd/da9063/core.h
@@ -0,0 +1,55 @@
+/*
+ * Definitions for DA9063 MFD driver
+ *
+ * Copyright 2012 Dialog Semiconductor Ltd.
+ *
+ * Author: Michal Hajduk <michal.hajduk@diasemi.com>
+ *         Krystian Garbaciak <krystian.garbaciak@diasemi.com>
+ *
+ *  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 __MFD_DA9063_CORE_H__
+#define __MFD_DA9063_CORE_H__
+
+#include <linux/interrupt.h>
+#include <linux/mfd/da9063/registers.h>
+
+/* DA9063 modules */
+#define DA9063_DRVNAME_CORE             "da9063-core"
+#define DA9063_DRVNAME_REGULATORS       "da9063-regulators"
+#define DA9063_DRVNAME_LEDS             "da9063-leds"
+#define DA9063_DRVNAME_WATCHDOG         "da9063-watchdog"
+#define DA9063_DRVNAME_HWMON            "da9063-hwmon"
+#define DA9063_DRVNAME_ONKEY            "da9063-onkey"
+#define DA9063_DRVNAME_RTC              "da9063-rtc"
+#define DA9063_DRVNAME_VIBRATION        "da9063-vibration"
+
+enum da9063_models {
+        PMIC_DA9063 = 0x61,
+};
+
+struct da9063 {
+        /* Device */
+        struct device   *dev;
+        unsigned short  model;
+        unsigned short  revision;
+        unsigned int    flags;
+
+        /* Control interface */
+        struct regmap   *regmap;
+
+        /* Interrupts */
+        int             chip_irq;
+        unsigned int    irq_base;
+};
+
+int da9063_device_init(struct da9063 *da9063, unsigned int irq);
+
+void da9063_device_exit(struct da9063 *da9063);
+
+#endif /* __MFD_DA9063_CORE_H__ */
diff --git a/include/linux/mfd/da9063/pdata.h b/include/linux/mfd/da9063/pdata.h
new file mode 100644
index 000000000000..95c8742215a7
--- /dev/null
+++ b/include/linux/mfd/da9063/pdata.h
@@ -0,0 +1,111 @@
+/*
+ * Platform configuration options for DA9063
+ *
+ * Copyright 2012 Dialog Semiconductor Ltd.
+ *
+ * Author: Michal Hajduk <michal.hajduk@diasemi.com>
+ * Author: Krystian Garbaciak <krystian.garbaciak@diasemi.com>
+ *
+ *  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 __MFD_DA9063_PDATA_H__
+#define __MFD_DA9063_PDATA_H__
+
+#include <linux/regulator/machine.h>
+
+/*
+ * Regulator configuration
+ */
+/* DA9063 regulator IDs */
+enum {
+        /* BUCKs */
+        DA9063_ID_BCORE1,
+        DA9063_ID_BCORE2,
+        DA9063_ID_BPRO,
+        DA9063_ID_BMEM,
+        DA9063_ID_BIO,
+        DA9063_ID_BPERI,
+
+        /* BCORE1 and BCORE2 in merged mode */
+        DA9063_ID_BCORES_MERGED,
+        /* BMEM and BIO in merged mode */
+        DA9063_ID_BMEM_BIO_MERGED,
+        /* When two BUCKs are merged, they cannot be reused separately */
+
+        /* LDOs */
+        DA9063_ID_LDO1,
+        DA9063_ID_LDO2,
+        DA9063_ID_LDO3,
+        DA9063_ID_LDO4,
+        DA9063_ID_LDO5,
+        DA9063_ID_LDO6,
+        DA9063_ID_LDO7,
+        DA9063_ID_LDO8,
+        DA9063_ID_LDO9,
+        DA9063_ID_LDO10,
+        DA9063_ID_LDO11,
+};
+
+/* Regulators platform data */
+struct da9063_regulator_data {
+        int                             id;
+        struct regulator_init_data      *initdata;
+};
+
+struct da9063_regulators_pdata {
+        unsigned                        n_regulators;
+        struct da9063_regulator_data    *regulator_data;
+};
+
+
+/*
+ * RGB LED configuration
+ */
+/* LED IDs for flags in struct led_info. */
+enum {
+        DA9063_GPIO11_LED,
+        DA9063_GPIO14_LED,
+        DA9063_GPIO15_LED,
+
+        DA9063_LED_NUM
+};
+#define DA9063_LED_ID_MASK              0x3
+
+/* LED polarity for flags in struct led_info. */
+#define DA9063_LED_HIGH_LEVEL_ACTIVE    0x0
+#define DA9063_LED_LOW_LEVEL_ACTIVE     0x4
+
+
+/*
+ * General PMIC configuration
+ */
+/* HWMON ADC channels configuration */
+#define DA9063_FLG_FORCE_IN0_MANUAL_MODE        0x0010
+#define DA9063_FLG_FORCE_IN0_AUTO_MODE          0x0020
+#define DA9063_FLG_FORCE_IN1_MANUAL_MODE        0x0040
+#define DA9063_FLG_FORCE_IN1_AUTO_MODE          0x0080
+#define DA9063_FLG_FORCE_IN2_MANUAL_MODE        0x0100
+#define DA9063_FLG_FORCE_IN2_AUTO_MODE          0x0200
+#define DA9063_FLG_FORCE_IN3_MANUAL_MODE        0x0400
+#define DA9063_FLG_FORCE_IN3_AUTO_MODE          0x0800
+
+/* Disable register caching. */
+#define DA9063_FLG_NO_CACHE                     0x0008
+
+struct da9063;
+
+/* DA9063 platform data */
+struct da9063_pdata {
+        int                             (*init)(struct da9063 *da9063);
+        int                             irq_base;
+        unsigned                        flags;
+        struct da9063_regulators_pdata  *regulators_pdata;
+        struct led_platform_data        *leds_pdata;
+};
+
+#endif  /* __MFD_DA9063_PDATA_H__ */