regulator: da9063: Convert to use regulator_set/get_current_limit_regmap

Use regulator_set/get_current_limit_regmap helpers to save some code.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Steve Twiss <stwiss@opensource.diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/regulator/da9063-regulator.c b/drivers/regulator/da9063-regulator.c
index d7bdb95..c5d1ae5 100644 (file)
--- a/drivers/regulator/da9063-regulator.c
+++ b/drivers/regulator/da9063-regulator.c
@@ -38,17 +38,12 @@
 struct da9063_regulator_info {
        struct regulator_desc desc;
 
-       /* Current limiting */
-       unsigned        n_current_limits;
-       const int       *current_limits;
-
        /* DA9063 main register fields */
        struct reg_field mode;          /* buck mode of operation */
        struct reg_field suspend;
        struct reg_field sleep;
        struct reg_field suspend_sleep;
        unsigned int suspend_vsel_reg;
-       struct reg_field ilimit;
 
        /* DA9063 event detection bit */
        struct reg_field oc_event;
@@ -73,15 +68,18 @@ struct da9063_regulator_info {
        .suspend_vsel_reg = DA9063_REG_V##regl_name##_B
 
 /* Macros for voltage DC/DC converters (BUCKs) */
-#define DA9063_BUCK(chip, regl_name, min_mV, step_mV, max_mV, limits_array) \
+#define DA9063_BUCK(chip, regl_name, min_mV, step_mV, max_mV, limits_array, \
+                   creg, cmask) \
        .desc.id = chip##_ID_##regl_name, \
        .desc.name = __stringify(chip##_##regl_name), \
        .desc.ops = &da9063_buck_ops, \
        .desc.min_uV = (min_mV) * 1000, \
        .desc.uV_step = (step_mV) * 1000, \
        .desc.n_voltages = ((max_mV) - (min_mV))/(step_mV) + 1, \
-       .current_limits = limits_array, \
-       .n_current_limits = ARRAY_SIZE(limits_array)
+       .desc.csel_reg = (creg), \
+       .desc.csel_mask = (cmask), \
+       .desc.curr_table = limits_array, \
+       .desc.n_current_limits = ARRAY_SIZE(limits_array)
 
 #define DA9063_BUCK_COMMON_FIELDS(regl_name) \
        .desc.enable_reg = DA9063_REG_##regl_name##_CONT, \
@@ -112,7 +110,6 @@ struct da9063_regulator {
        struct regmap_field                     *suspend;
        struct regmap_field                     *sleep;
        struct regmap_field                     *suspend_sleep;
-       struct regmap_field                     *ilimit;
 };
 
 /* Encapsulates all information for the regulators driver */
@@ -134,65 +131,32 @@ enum {
 
 /* Current limits array (in uA) for BCORE1, BCORE2, BPRO.
    Entry indexes corresponds to register values. */
-static const int da9063_buck_a_limits[] = {
+static const unsigned int da9063_buck_a_limits[] = {
         500000,  600000,  700000,  800000,  900000, 1000000, 1100000, 1200000,
        1300000, 1400000, 1500000, 1600000, 1700000, 1800000, 1900000, 2000000
 };
 
 /* Current limits array (in uA) for BMEM, BIO, BPERI.
    Entry indexes corresponds to register values. */
-static const int da9063_buck_b_limits[] = {
+static const unsigned int da9063_buck_b_limits[] = {
        1500000, 1600000, 1700000, 1800000, 1900000, 2000000, 2100000, 2200000,
        2300000, 2400000, 2500000, 2600000, 2700000, 2800000, 2900000, 3000000
 };
 
 /* Current limits array (in uA) for merged BCORE1 and BCORE2.
    Entry indexes corresponds to register values. */
-static const int da9063_bcores_merged_limits[] = {
+static const unsigned int da9063_bcores_merged_limits[] = {
        1000000, 1200000, 1400000, 1600000, 1800000, 2000000, 2200000, 2400000,
        2600000, 2800000, 3000000, 3200000, 3400000, 3600000, 3800000, 4000000
 };
 
 /* Current limits array (in uA) for merged BMEM and BIO.
    Entry indexes corresponds to register values. */
-static const int da9063_bmem_bio_merged_limits[] = {
+static const unsigned int da9063_bmem_bio_merged_limits[] = {
        3000000, 3200000, 3400000, 3600000, 3800000, 4000000, 4200000, 4400000,
        4600000, 4800000, 5000000, 5200000, 5400000, 5600000, 5800000, 6000000
 };
 
-static int da9063_set_current_limit(struct regulator_dev *rdev,
-                                                       int min_uA, int max_uA)
-{
-       struct da9063_regulator *regl = rdev_get_drvdata(rdev);
-       const struct da9063_regulator_info *rinfo = regl->info;
-       int n, tval;
-
-       for (n = rinfo->n_current_limits - 1; n >= 0; n--) {
-               tval = rinfo->current_limits[n];
-               if (tval >= min_uA && tval <= max_uA)
-                       return regmap_field_write(regl->ilimit, n);
-       }
-
-       return -EINVAL;
-}
-
-static int da9063_get_current_limit(struct regulator_dev *rdev)
-{
-       struct da9063_regulator *regl = rdev_get_drvdata(rdev);
-       const struct da9063_regulator_info *rinfo = regl->info;
-       unsigned int sel;
-       int ret;
-
-       ret = regmap_field_read(regl->ilimit, &sel);
-       if (ret < 0)
-               return ret;
-
-       if (sel >= rinfo->n_current_limits)
-               sel = rinfo->n_current_limits - 1;
-
-       return rinfo->current_limits[sel];
-}
-
 static int da9063_buck_set_mode(struct regulator_dev *rdev, unsigned mode)
 {
        struct da9063_regulator *regl = rdev_get_drvdata(rdev);
@@ -434,8 +398,8 @@ static const struct regulator_ops da9063_buck_ops = {
        .get_voltage_sel        = regulator_get_voltage_sel_regmap,
        .set_voltage_sel        = regulator_set_voltage_sel_regmap,
        .list_voltage           = regulator_list_voltage_linear,
-       .set_current_limit      = da9063_set_current_limit,
-       .get_current_limit      = da9063_get_current_limit,
+       .set_current_limit      = regulator_set_current_limit_regmap,
+       .get_current_limit      = regulator_get_current_limit_regmap,
        .set_mode               = da9063_buck_set_mode,
        .get_mode               = da9063_buck_get_mode,
        .get_status             = da9063_buck_get_status,
@@ -465,69 +429,61 @@ static const struct regulator_ops da9063_ldo_ops = {
 static const struct da9063_regulator_info da9063_regulator_info[] = {
        {
                DA9063_BUCK(DA9063, BCORE1, 300, 10, 1570,
-                           da9063_buck_a_limits),
+                           da9063_buck_a_limits,
+                           DA9063_REG_BUCK_ILIM_C, DA9063_BCORE1_ILIM_MASK),
                DA9063_BUCK_COMMON_FIELDS(BCORE1),
                .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBCORE1_SEL),
-               .ilimit = BFIELD(DA9063_REG_BUCK_ILIM_C,
-                                DA9063_BCORE1_ILIM_MASK),
        },
        {
                DA9063_BUCK(DA9063, BCORE2, 300, 10, 1570,
-                           da9063_buck_a_limits),
+                           da9063_buck_a_limits,
+                           DA9063_REG_BUCK_ILIM_C, DA9063_BCORE2_ILIM_MASK),
                DA9063_BUCK_COMMON_FIELDS(BCORE2),
                .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBCORE2_SEL),
-               .ilimit = BFIELD(DA9063_REG_BUCK_ILIM_C,
-                                DA9063_BCORE2_ILIM_MASK),
        },
        {
                DA9063_BUCK(DA9063, BPRO, 530, 10, 1800,
-                           da9063_buck_a_limits),
+                           da9063_buck_a_limits,
+                           DA9063_REG_BUCK_ILIM_B, DA9063_BPRO_ILIM_MASK),
                DA9063_BUCK_COMMON_FIELDS(BPRO),
                .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBPRO_SEL),
-               .ilimit = BFIELD(DA9063_REG_BUCK_ILIM_B,
-                                DA9063_BPRO_ILIM_MASK),
        },
        {
                DA9063_BUCK(DA9063, BMEM, 800, 20, 3340,
-                           da9063_buck_b_limits),
+                           da9063_buck_b_limits,
+                           DA9063_REG_BUCK_ILIM_A, DA9063_BMEM_ILIM_MASK),
                DA9063_BUCK_COMMON_FIELDS(BMEM),
                .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBMEM_SEL),
-               .ilimit = BFIELD(DA9063_REG_BUCK_ILIM_A,
-                                DA9063_BMEM_ILIM_MASK),
        },
        {
                DA9063_BUCK(DA9063, BIO, 800, 20, 3340,
-                           da9063_buck_b_limits),
+                           da9063_buck_b_limits,
+                           DA9063_REG_BUCK_ILIM_A, DA9063_BIO_ILIM_MASK),
                DA9063_BUCK_COMMON_FIELDS(BIO),
                .suspend = BFIELD(DA9063_REG_DVC_2, DA9063_VBIO_SEL),
-               .ilimit = BFIELD(DA9063_REG_BUCK_ILIM_A,
-                                DA9063_BIO_ILIM_MASK),
        },
        {
                DA9063_BUCK(DA9063, BPERI, 800, 20, 3340,
-                           da9063_buck_b_limits),
+                           da9063_buck_b_limits,
+                           DA9063_REG_BUCK_ILIM_B, DA9063_BPERI_ILIM_MASK),
                DA9063_BUCK_COMMON_FIELDS(BPERI),
                .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBPERI_SEL),
-               .ilimit = BFIELD(DA9063_REG_BUCK_ILIM_B,
-                                DA9063_BPERI_ILIM_MASK),
        },
        {
                DA9063_BUCK(DA9063, BCORES_MERGED, 300, 10, 1570,
-                           da9063_bcores_merged_limits),
+                           da9063_bcores_merged_limits,
+                           DA9063_REG_BUCK_ILIM_C, DA9063_BCORE1_ILIM_MASK),
                /* BCORES_MERGED uses the same register fields as BCORE1 */
                DA9063_BUCK_COMMON_FIELDS(BCORE1),
                .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBCORE1_SEL),
-               .ilimit = BFIELD(DA9063_REG_BUCK_ILIM_C,
-                                DA9063_BCORE1_ILIM_MASK),
        },
        {
                DA9063_BUCK(DA9063, BMEM_BIO_MERGED, 800, 20, 3340,
-                           da9063_bmem_bio_merged_limits),
+                           da9063_bmem_bio_merged_limits,
+                           DA9063_REG_BUCK_ILIM_A, DA9063_BMEM_ILIM_MASK),
                /* BMEM_BIO_MERGED uses the same register fields as BMEM */
                DA9063_BUCK_COMMON_FIELDS(BMEM),
                .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBMEM_SEL),
-               .ilimit = BFIELD(DA9063_REG_BUCK_ILIM_A,
-                                DA9063_BMEM_ILIM_MASK),
        },
        {
                DA9063_LDO(DA9063, LDO3, 900, 20, 3440),
@@ -864,13 +820,6 @@ static int da9063_regulator_probe(struct platform_device *pdev)
                                return PTR_ERR(regl->suspend_sleep);
                }
 
-               if (regl->info->ilimit.reg) {
-                       regl->ilimit = devm_regmap_field_alloc(&pdev->dev,
-                                       da9063->regmap, regl->info->ilimit);
-                       if (IS_ERR(regl->ilimit))
-                               return PTR_ERR(regl->ilimit);
-               }
-
                /* Register regulator */
                memset(&config, 0, sizeof(config));
                config.dev = &pdev->dev;