MFD: DA9052/53 MFD core module

The DA9052/53 is a highly integrated PMIC subsystem with supply domain
flexibility to support wide range of high performance application.

It provides voltage regulators, GPIO controller, Touch Screen, RTC, Battery
control and other functionality.

This patch is functionally tested on Samsung SMDKV6410.

Signed-off-by: David Dajun Chen <dchen@diasemi.com>
Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 129 insertions, 0 deletions

diff --git a/include/linux/mfd/da9052/da9052.h b/include/linux/mfd/da9052/da9052.h
new file mode 100644
index 000000000000..c8899ab20549
--- /dev/null
+++ b/include/linux/mfd/da9052/da9052.h
@@ -0,0 +1,129 @@
+/*
+ * da9052 declarations for DA9052 PMICs.
+ *
+ * Copyright(c) 2011 Dialog Semiconductor Ltd.
+ *
+ * Author: David Dajun Chen <dchen@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.
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#ifndef __MFD_DA9052_DA9052_H
+#define __MFD_DA9052_DA9052_H
+
+#include <linux/interrupt.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/completion.h>
+#include <linux/list.h>
+#include <linux/mfd/core.h>
+
+#include <linux/mfd/da9052/reg.h>
+
+#define DA9052_IRQ_DCIN	0
+#define DA9052_IRQ_VBUS	1
+#define DA9052_IRQ_DCINREM	2
+#define DA9052_IRQ_VBUSREM	3
+#define DA9052_IRQ_VDDLOW	4
+#define DA9052_IRQ_ALARM	5
+#define DA9052_IRQ_SEQRDY	6
+#define DA9052_IRQ_COMP1V2	7
+#define DA9052_IRQ_NONKEY	8
+#define DA9052_IRQ_IDFLOAT	9
+#define DA9052_IRQ_IDGND	10
+#define DA9052_IRQ_CHGEND	11
+#define DA9052_IRQ_TBAT	12
+#define DA9052_IRQ_ADC_EOM	13
+#define DA9052_IRQ_PENDOWN	14
+#define DA9052_IRQ_TSIREADY	15
+#define DA9052_IRQ_GPI0	16
+#define DA9052_IRQ_GPI1	17
+#define DA9052_IRQ_GPI2	18
+#define DA9052_IRQ_GPI3	19
+#define DA9052_IRQ_GPI4	20
+#define DA9052_IRQ_GPI5	21
+#define DA9052_IRQ_GPI6	22
+#define DA9052_IRQ_GPI7	23
+#define DA9052_IRQ_GPI8	24
+#define DA9052_IRQ_GPI9	25
+#define DA9052_IRQ_GPI10	26
+#define DA9052_IRQ_GPI11	27
+#define DA9052_IRQ_GPI12	28
+#define DA9052_IRQ_GPI13	29
+#define DA9052_IRQ_GPI14	30
+#define DA9052_IRQ_GPI15	31
+
+enum da9052_chip_id {
+	DA9052,
+	DA9053_AA,
+	DA9053_BA,
+	DA9053_BB,
+};
+
+struct da9052_pdata;
+
+struct da9052 {
+	struct mutex io_lock;
+
+	struct device *dev;
+	struct regmap *regmap;
+
+	int irq_base;
+	u8 chip_id;
+
+	int chip_irq;
+};
+
+/* Device I/O API */
+static inline int da9052_reg_read(struct da9052 *da9052, unsigned char reg)
+{
+	int val, ret;
+
+	ret = regmap_read(da9052->regmap, reg, &val);
+	if (ret < 0)
+		return ret;
+	return val;
+}
+
+static inline int da9052_reg_write(struct da9052 *da9052, unsigned char reg,
+				    unsigned char val)
+{
+	return regmap_write(da9052->regmap, reg, val);
+}
+
+static inline int da9052_group_read(struct da9052 *da9052, unsigned char reg,
+				     unsigned reg_cnt, unsigned char *val)
+{
+	return regmap_bulk_read(da9052->regmap, reg, val, reg_cnt);
+}
+
+static inline int da9052_group_write(struct da9052 *da9052, unsigned char reg,
+				      unsigned reg_cnt, unsigned char *val)
+{
+	return regmap_raw_write(da9052->regmap, reg, val, reg_cnt);
+}
+
+static inline int da9052_reg_update(struct da9052 *da9052, unsigned char reg,
+				     unsigned char bit_mask,
+				     unsigned char reg_val)
+{
+	return regmap_update_bits(da9052->regmap, reg, bit_mask, reg_val);
+}
+
+int da9052_device_init(struct da9052 *da9052, u8 chip_id);
+void da9052_device_exit(struct da9052 *da9052);
+
+#endif /* __MFD_DA9052_DA9052_H */