2 files changed, 61 insertions, 9 deletions

diff --git a/drivers/regulator/tps65217-regulator.c b/drivers/regulator/tps65217-regulator.c
index adbe4fc5cf07..2d12b9af3540 100644
--- a/drivers/regulator/tps65217-regulator.c
+++ b/drivers/regulator/tps65217-regulator.c
@@ -28,7 +28,7 @@
 #include <linux/mfd/tps65217.h>
 
 #define TPS65217_REGULATOR(_name, _id, _of_match, _ops, _n, _vr, _vm, _em, \
-                           _t, _lr, _nlr) \
+                           _t, _lr, _nlr,  _sr, _sm)    \
         {                                               \
                 .name           = _name,                \
                 .id             = _id,                  \
@@ -45,6 +45,8 @@
                 .volt_table     = _t,                   \
                 .linear_ranges  = _lr,                  \
                 .n_linear_ranges = _nlr,                \
+                .bypass_reg     = _sr,                  \
+                .bypass_mask    = _sm,                  \
         }                                               \
 
 static const unsigned int LDO1_VSEL_table[] = {
@@ -118,6 +120,35 @@ static int tps65217_pmic_set_voltage_sel(struct regulator_dev *dev,
         return ret;
 }
 
+static int tps65217_pmic_set_suspend_enable(struct regulator_dev *dev)
+{
+        struct tps65217 *tps = rdev_get_drvdata(dev);
+        unsigned int rid = rdev_get_id(dev);
+
+        if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
+                return -EINVAL;
+
+        return tps65217_clear_bits(tps, dev->desc->bypass_reg,
+                                   dev->desc->bypass_mask,
+                                   TPS65217_PROTECT_L1);
+}
+
+static int tps65217_pmic_set_suspend_disable(struct regulator_dev *dev)
+{
+        struct tps65217 *tps = rdev_get_drvdata(dev);
+        unsigned int rid = rdev_get_id(dev);
+
+        if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
+                return -EINVAL;
+
+        if (!tps->strobes[rid])
+                return -EINVAL;
+
+        return tps65217_set_bits(tps, dev->desc->bypass_reg,
+                                 dev->desc->bypass_mask,
+                                 tps->strobes[rid], TPS65217_PROTECT_L1);
+}
+
 /* Operations permitted on DCDCx, LDO2, LDO3 and LDO4 */
 static struct regulator_ops tps65217_pmic_ops = {
         .is_enabled             = regulator_is_enabled_regmap,
@@ -127,6 +158,8 @@ static struct regulator_ops tps65217_pmic_ops = {
         .set_voltage_sel        = tps65217_pmic_set_voltage_sel,
         .list_voltage           = regulator_list_voltage_linear_range,
         .map_voltage            = regulator_map_voltage_linear_range,
+        .set_suspend_enable     = tps65217_pmic_set_suspend_enable,
+        .set_suspend_disable    = tps65217_pmic_set_suspend_disable,
 };
 
 /* Operations permitted on LDO1 */
@@ -138,41 +171,50 @@ static struct regulator_ops tps65217_pmic_ldo1_ops = {
         .set_voltage_sel        = tps65217_pmic_set_voltage_sel,
         .list_voltage           = regulator_list_voltage_table,
         .map_voltage            = regulator_map_voltage_ascend,
+        .set_suspend_enable     = tps65217_pmic_set_suspend_enable,
+        .set_suspend_disable    = tps65217_pmic_set_suspend_disable,
 };
 
 static const struct regulator_desc regulators[] = {
         TPS65217_REGULATOR("DCDC1", TPS65217_DCDC_1, "dcdc1",
                            tps65217_pmic_ops, 64, TPS65217_REG_DEFDCDC1,
                            TPS65217_DEFDCDCX_DCDC_MASK, TPS65217_ENABLE_DC1_EN,
-                           NULL, tps65217_uv1_ranges, 2),
+                           NULL, tps65217_uv1_ranges, 2, TPS65217_REG_SEQ1,
+                           TPS65217_SEQ1_DC1_SEQ_MASK),
         TPS65217_REGULATOR("DCDC2", TPS65217_DCDC_2, "dcdc2",
                            tps65217_pmic_ops, 64, TPS65217_REG_DEFDCDC2,
                            TPS65217_DEFDCDCX_DCDC_MASK, TPS65217_ENABLE_DC2_EN,
                            NULL, tps65217_uv1_ranges,
-                           ARRAY_SIZE(tps65217_uv1_ranges)),
+                           ARRAY_SIZE(tps65217_uv1_ranges), TPS65217_REG_SEQ1,
+                           TPS65217_SEQ1_DC2_SEQ_MASK),
         TPS65217_REGULATOR("DCDC3", TPS65217_DCDC_3, "dcdc3",
                            tps65217_pmic_ops, 64, TPS65217_REG_DEFDCDC3,
                            TPS65217_DEFDCDCX_DCDC_MASK, TPS65217_ENABLE_DC3_EN,
-                           NULL, tps65217_uv1_ranges, 1),
+                           NULL, tps65217_uv1_ranges, 1, TPS65217_REG_SEQ2,
+                           TPS65217_SEQ2_DC3_SEQ_MASK),
         TPS65217_REGULATOR("LDO1", TPS65217_LDO_1, "ldo1",
                            tps65217_pmic_ldo1_ops, 16, TPS65217_REG_DEFLDO1,
                            TPS65217_DEFLDO1_LDO1_MASK, TPS65217_ENABLE_LDO1_EN,
-                           LDO1_VSEL_table, NULL, 0),
+                           LDO1_VSEL_table, NULL, 0, TPS65217_REG_SEQ2,
+                           TPS65217_SEQ2_LDO1_SEQ_MASK),
         TPS65217_REGULATOR("LDO2", TPS65217_LDO_2, "ldo2", tps65217_pmic_ops,
                            64, TPS65217_REG_DEFLDO2,
                            TPS65217_DEFLDO2_LDO2_MASK, TPS65217_ENABLE_LDO2_EN,
                            NULL, tps65217_uv1_ranges,
-                           ARRAY_SIZE(tps65217_uv1_ranges)),
+                           ARRAY_SIZE(tps65217_uv1_ranges), TPS65217_REG_SEQ3,
+                           TPS65217_SEQ3_LDO2_SEQ_MASK),
         TPS65217_REGULATOR("LDO3", TPS65217_LDO_3, "ldo3", tps65217_pmic_ops,
                            32, TPS65217_REG_DEFLS1, TPS65217_DEFLDO3_LDO3_MASK,
                            TPS65217_ENABLE_LS1_EN | TPS65217_DEFLDO3_LDO3_EN,
                            NULL, tps65217_uv2_ranges,
-                           ARRAY_SIZE(tps65217_uv2_ranges)),
+                           ARRAY_SIZE(tps65217_uv2_ranges), TPS65217_REG_SEQ3,
+                           TPS65217_SEQ3_LDO3_SEQ_MASK),
         TPS65217_REGULATOR("LDO4", TPS65217_LDO_4, "ldo4", tps65217_pmic_ops,
                            32, TPS65217_REG_DEFLS2, TPS65217_DEFLDO4_LDO4_MASK,
                            TPS65217_ENABLE_LS2_EN | TPS65217_DEFLDO4_LDO4_EN,
                            NULL, tps65217_uv2_ranges,
-                           ARRAY_SIZE(tps65217_uv2_ranges)),
+                           ARRAY_SIZE(tps65217_uv2_ranges), TPS65217_REG_SEQ4,
+                           TPS65217_SEQ4_LDO4_SEQ_MASK),
 };
 
 static int tps65217_regulator_probe(struct platform_device *pdev)
@@ -181,13 +223,18 @@ static int tps65217_regulator_probe(struct platform_device *pdev)
         struct tps65217_board *pdata = dev_get_platdata(tps->dev);
         struct regulator_dev *rdev;
         struct regulator_config config = { };
-        int i;
+        int i, ret;
+        unsigned int val;
 
         if (tps65217_chip_id(tps) != TPS65217) {
                 dev_err(&pdev->dev, "Invalid tps chip version\n");
                 return -ENODEV;
         }
 
+        /* Allocate memory for strobes */
+        tps->strobes = devm_kzalloc(&pdev->dev, sizeof(u8) *
+                                    TPS65217_NUM_REGULATOR, GFP_KERNEL);
+
         platform_set_drvdata(pdev, tps);
 
         for (i = 0; i < TPS65217_NUM_REGULATOR; i++) {
@@ -205,6 +252,10 @@ static int tps65217_regulator_probe(struct platform_device *pdev)
                                 pdev->name);
                         return PTR_ERR(rdev);
                 }
+
+                /* Store default strobe info */
+                ret = tps65217_reg_read(tps, regulators[i].bypass_reg, &val);
+                tps->strobes[i] = val & regulators[i].bypass_mask;
         }
 
         return 0;
diff --git a/include/linux/mfd/tps65217.h b/include/linux/mfd/tps65217.h
index ac7fba44d7e4..1c88231496d3 100644
--- a/include/linux/mfd/tps65217.h
+++ b/include/linux/mfd/tps65217.h
@@ -257,6 +257,7 @@ struct tps65217 {
         unsigned long id;
         struct regulator_desc desc[TPS65217_NUM_REGULATOR];
         struct regmap *regmap;
+        u8 *strobes;
 };
 
 static inline struct tps65217 *dev_to_tps65217(struct device *dev)