MFD: TPS65910: Add support for TPS65911 device

The TPS65911 is the next generation of the TPS65910 family of
PMIC chips. It adds a few features:

- Watchdog Timer
- PWM & LED generators
- Comparators for system control status

It also adds a set of Interrupts and GPIOs, among other things.

The driver exports a function to identify between different
versions of the tps65910 family, allowing other modules to
identify the capabilities of the current chip.

Signed-off-by: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>

2 files changed, 49 insertions, 1 deletions

diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c
index e31824870b9f..2229e66d80db 100644
--- a/drivers/mfd/tps65910.c
+++ b/drivers/mfd/tps65910.c
@@ -157,6 +157,7 @@ static int tps65910_i2c_probe(struct i2c_client *i2c,
         i2c_set_clientdata(i2c, tps65910);
         tps65910->dev = &i2c->dev;
         tps65910->i2c_client = i2c;
+        tps65910->id = id->driver_data;
         tps65910->read = tps65910_i2c_read;
         tps65910->write = tps65910_i2c_write;
         mutex_init(&tps65910->io_mutex);
@@ -192,7 +193,8 @@ static int tps65910_i2c_remove(struct i2c_client *i2c)
 }
 
 static const struct i2c_device_id tps65910_i2c_id[] = {
-       { "tps65910", 0 },
+       { "tps65910", TPS65910 },
+       { "tps65911", TPS65911 },
        { }
 };
 MODULE_DEVICE_TABLE(i2c, tps65910_i2c_id);
diff --git a/include/linux/mfd/tps65910.h b/include/linux/mfd/tps65910.h
index be08a0c7e7de..6ceea0dab8d7 100644
--- a/include/linux/mfd/tps65910.h
+++ b/include/linux/mfd/tps65910.h
@@ -17,6 +17,14 @@
 #ifndef __LINUX_MFD_TPS65910_H
 #define __LINUX_MFD_TPS65910_H
 
+/* TPS chip id list */
+#define TPS65910                        0
+#define TPS65911                        1
+
+/* TPS regulator type list */
+#define REGULATOR_LDO                   0
+#define REGULATOR_DCDC                  1
+
 /*
  * List of registers for component TPS65910
  *
@@ -97,6 +105,21 @@
 #define TPS65910_MAX_REGISTER                           0x80
 
 /*
+ * List of registers specific to TPS65911
+ */
+#define TPS65911_VDDCTRL                                0x27
+#define TPS65911_VDDCTRL_OP                             0x28
+#define TPS65911_VDDCTRL_SR                             0x29
+#define TPS65911_LDO1                                   0x30
+#define TPS65911_LDO2                                   0x31
+#define TPS65911_LDO5                                   0x32
+#define TPS65911_LDO8                                   0x33
+#define TPS65911_LDO7                                   0x34
+#define TPS65911_LDO6                                   0x35
+#define TPS65911_LDO4                                   0x36
+#define TPS65911_LDO3                                   0x37
+
+/*
  * List of register bitfields for component TPS65910
  *
  */
@@ -702,6 +725,23 @@
 #define JTAGVERNUM_VERNUM_SHIFT                         0
 
 
+/* Register VDDCTRL (0x27) bit definitions */
+#define VDDCTRL_ST_MASK                                  0x03
+#define VDDCTRL_ST_SHIFT                                 0
+
+
+/*Register VDDCTRL_OP  (0x28) bit definitios */
+#define VDDCTRL_OP_CMD_MASK                              0x80
+#define VDDCTRL_OP_CMD_SHIFT                             7
+#define VDDCTRL_OP_SEL_MASK                              0x7F
+#define VDDCTRL_OP_SEL_SHIFT                             0
+
+
+/*Register VDDCTRL_SR  (0x29) bit definitions */
+#define VDDCTRL_SR_SEL_MASK                              0x7F
+#define VDDCTRL_SR_SEL_SHIFT                             0
+
+
 /* IRQ Definitions */
 #define TPS65910_IRQ_VBAT_VMBDCH                        0
 #define TPS65910_IRQ_VBAT_VMHI                          1
@@ -742,6 +782,7 @@ struct tps65910 {
         struct device *dev;
         struct i2c_client *i2c_client;
         struct mutex io_mutex;
+        unsigned int id;
         int (*read)(struct tps65910 *tps65910, u8 reg, int size, void *dest);
         int (*write)(struct tps65910 *tps65910, u8 reg, int size, void *src);
 
@@ -771,4 +812,9 @@ void tps65910_gpio_init(struct tps65910 *tps65910, int gpio_base);
 int tps65910_irq_init(struct tps65910 *tps65910, int irq,
                 struct tps65910_platform_data *pdata);
 
+static inline int tps65910_chip_id(struct tps65910 *tps65910)
+{
+        return tps65910->id;
+}
+
 #endif /*  __LINUX_MFD_TPS65910_H */