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Subject[PATCH V4 07/10] regulator: da9121: Update registration to support multiple buck variants
Add function which iterates the regulator descriptors for the confirmed
variant ID and registers each buck.

Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com>
---
drivers/regulator/da9121-regulator.c | 44 +++++++++++++++++++++++++-----------
1 file changed, 31 insertions(+), 13 deletions(-)

diff --git a/drivers/regulator/da9121-regulator.c b/drivers/regulator/da9121-regulator.c
index 1f74371..6c82441 100644
--- a/drivers/regulator/da9121-regulator.c
+++ b/drivers/regulator/da9121-regulator.c
@@ -31,6 +31,7 @@ struct da9121 {
struct device *dev;
struct da9121_pdata *pdata;
struct regmap *regmap;
+ struct regulator_dev *rdev[DA9121_IDX_MAX];
int variant_id;
};

@@ -291,6 +292,35 @@ static int da9121_of_parse_cb(struct device_node *np,
[DA9121_TYPE_DA9217] = { &da9217_reg, NULL },
};

+static int da9121_set_regulator_config(struct da9121 *chip)
+{
+ struct regulator_config config = { };
+ unsigned int max_matches = variant_parameters[chip->variant_id].num_bucks;
+ int ret = 0;
+ int i;
+
+ for (i = 0; i < max_matches; i++) {
+ const struct regulator_desc *regl_desc =
+ local_da9121_regulators[chip->variant_id][i];
+
+ config.dev = chip->dev;
+ config.driver_data = chip;
+ config.regmap = chip->regmap;
+
+ chip->rdev[i] = devm_regulator_register(chip->dev,
+ regl_desc, &config);
+ if (IS_ERR(chip->rdev[i])) {
+ dev_err(chip->dev, "Failed to register regulator %s, %d/%d\n",
+ regl_desc->name, (i+1), max_matches);
+ ret = PTR_ERR(chip->rdev[i]);
+ goto error;
+ }
+ }
+
+error:
+ return ret;
+}
+
/* DA9121 chip register model */
static const struct regmap_range da9121_1ch_readable_ranges[] = {
regmap_reg_range(DA9121_REG_SYS_STATUS_0, DA9121_REG_SYS_MASK_3),
@@ -522,9 +552,6 @@ static int da9121_i2c_probe(struct i2c_client *i2c,
{
struct da9121 *chip;
int ret = 0;
- struct device *dev = &i2c->dev;
- struct regulator_config config = {};
- struct regulator_dev *rdev;

chip = devm_kzalloc(&i2c->dev, sizeof(struct da9121), GFP_KERNEL);
if (!chip) {
@@ -539,16 +566,7 @@ static int da9121_i2c_probe(struct i2c_client *i2c,
if (ret < 0)
goto error;

- config.dev = &i2c->dev;
- config.driver_data = chip;
- config.of_node = dev->of_node;
- config.regmap = chip->regmap;
-
- rdev = devm_regulator_register(&i2c->dev, &da9121_reg, &config);
- if (IS_ERR(rdev)) {
- dev_err(&i2c->dev, "Failed to register da9121 regulator\n");
- return PTR_ERR(rdev);
- }
+ ret = da9121_set_regulator_config(chip);

error:
return ret;
--
1.9.1
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