regulator: add buck3 in da903x driver

BUCK3 is the new component in DA9035. So there're three BUCKs in DA9035.
And there're two BUCKs in DA9034.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>

2 files changed, 35 insertions, 1 deletions

diff --git a/drivers/regulator/da903x.c b/drivers/regulator/da903x.c
index b8b89ef10a84..33dfeeb9407c 100644
--- a/drivers/regulator/da903x.c
+++ b/drivers/regulator/da903x.c
@@ -64,6 +64,14 @@
 #define DA9034_MDTV2            (0x33)
 #define DA9034_MVRC             (0x34)
 
+/* DA9035 Registers. DA9034 Registers are comptabile to DA9035. */
+#define DA9035_OVER3            (0x12)
+#define DA9035_VCC2             (0x1f)
+#define DA9035_3DTV1            (0x2c)
+#define DA9035_3DTV2            (0x2d)
+#define DA9035_3VRC             (0x2e)
+#define DA9035_AUTOSKIP         (0x2f)
+
 struct da903x_regulator_info {
         struct regulator_desc desc;
 
@@ -388,6 +396,27 @@ static struct regulator_ops da9034_regulator_ldo12_ops = {
         .enable_bit     = (ebit),                                       \
 }
 
+#define DA9035_DVC(_id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
+{                                                                       \
+        .desc   = {                                                     \
+                .name   = #_id,                                         \
+                .ops    = &da9034_regulator_dvc_ops,                    \
+                .type   = REGULATOR_VOLTAGE,                            \
+                .id     = DA9035_ID_##_id,                              \
+                .owner  = THIS_MODULE,                                  \
+        },                                                              \
+        .min_uV         = (min) * 1000,                                 \
+        .max_uV         = (max) * 1000,                                 \
+        .step_uV        = (step) * 1000,                                \
+        .vol_reg        = DA9035_##vreg,                                \
+        .vol_shift      = (0),                                          \
+        .vol_nbits      = (nbits),                                      \
+        .update_reg     = DA9035_##ureg,                                \
+        .update_bit     = (ubit),                                       \
+        .enable_reg     = DA9035_##ereg,                                \
+        .enable_bit     = (ebit),                                       \
+}
+
 #define DA9034_LDO(_id, min, max, step, vreg, shift, nbits, ereg, ebit) \
         DA903x_LDO(DA9034, _id, min, max, step, vreg, shift, nbits, ereg, ebit)
 
@@ -435,6 +464,9 @@ static struct da903x_regulator_info da903x_regulator_info[] = {
         DA9034_LDO(14, 1800, 3300, 100, LDO1514, 0, 4, OVER3, 0),
         DA9034_LDO(15, 1800, 3300, 100, LDO1514, 4, 4, OVER3, 1),
         DA9034_LDO(5, 3100, 3100, 0, INVAL, 0, 0, OVER3, 7), /* fixed @3.1V */
+
+        /* DA9035 */
+        DA9035_DVC(BUCK3, 1800, 2200, 100, 3DTV1, 3, VCC2, 0, OVER3, 3),
 };
 
 static inline struct da903x_regulator_info *find_regulator_info(int id)
diff --git a/include/linux/mfd/da903x.h b/include/linux/mfd/da903x.h
index 115dbe965082..c63b65c94429 100644
--- a/include/linux/mfd/da903x.h
+++ b/include/linux/mfd/da903x.h
@@ -1,7 +1,7 @@
 #ifndef __LINUX_PMIC_DA903X_H
 #define __LINUX_PMIC_DA903X_H
 
-/* Unified sub device IDs for DA9030/DA9034 */
+/* Unified sub device IDs for DA9030/DA9034/DA9035 */
 enum {
         DA9030_ID_LED_1,
         DA9030_ID_LED_2,
@@ -57,6 +57,8 @@ enum {
         DA9034_ID_LDO13,
         DA9034_ID_LDO14,
         DA9034_ID_LDO15,
+
+        DA9035_ID_BUCK3,
 };
 
 /*