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regulator: tps6507x: Convert to regulator core's simplified DT parsing code

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Use regulator core's simplified DT parsing code to simply the driver
implementation.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Axel Lin 2019-03-28 20:02:25 +08:00 committed by Mark Brown
parent 69c57b97db
commit f979c08f76
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GPG Key ID: 24D68B725D5487D0
1 changed files with 19 additions and 88 deletions
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107
drivers/regulator/tps6507x-regulator.c
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@ -358,66 +358,20 @@ static const struct regulator_ops tps6507x_pmic_ops = {
.map_voltage = regulator_map_voltage_ascend,
};
static struct of_regulator_match tps6507x_matches[] = {
{ .name = "VDCDC1"},
{ .name = "VDCDC2"},
{ .name = "VDCDC3"},
{ .name = "LDO1"},
{ .name = "LDO2"},
};
static struct tps6507x_board *tps6507x_parse_dt_reg_data(
struct platform_device *pdev,
struct of_regulator_match **tps6507x_reg_matches)
static int tps6507x_pmic_of_parse_cb(struct device_node *np,
const struct regulator_desc *desc,
struct regulator_config *config)
{
struct tps6507x_board *tps_board;
struct device_node *np = pdev->dev.parent->of_node;
struct device_node *regulators;
struct of_regulator_match *matches;
struct regulator_init_data *reg_data;
int idx = 0, count, ret;
struct tps6507x_pmic *tps = config->driver_data;
struct tps_info *info = tps->info[desc->id];
u32 prop;
int ret;
tps_board = devm_kzalloc(&pdev->dev, sizeof(*tps_board),
GFP_KERNEL);
if (!tps_board)
return NULL;
ret = of_property_read_u32(np, "ti,defdcdc_default", &prop);
if (!ret)
info->defdcdc_default = prop;
regulators = of_get_child_by_name(np, "regulators");
if (!regulators) {
dev_err(&pdev->dev, "regulator node not found\n");
return NULL;
}
count = ARRAY_SIZE(tps6507x_matches);
matches = tps6507x_matches;
ret = of_regulator_match(&pdev->dev, regulators, matches, count);
of_node_put(regulators);
if (ret < 0) {
dev_err(&pdev->dev, "Error parsing regulator init data: %d\n",
ret);
return NULL;
}
*tps6507x_reg_matches = matches;
reg_data = devm_kzalloc(&pdev->dev, (sizeof(struct regulator_init_data)
* TPS6507X_NUM_REGULATOR), GFP_KERNEL);
if (!reg_data)
return NULL;
tps_board->tps6507x_pmic_init_data = reg_data;
for (idx = 0; idx < count; idx++) {
if (!matches[idx].init_data || !matches[idx].of_node)
continue;
memcpy(&reg_data[idx], matches[idx].init_data,
sizeof(struct regulator_init_data));
}
return tps_board;
return 0;
}
static int tps6507x_pmic_probe(struct platform_device *pdev)
@ -425,14 +379,11 @@ static int tps6507x_pmic_probe(struct platform_device *pdev)
struct tps6507x_dev *tps6507x_dev = dev_get_drvdata(pdev->dev.parent);
struct tps_info *info = &tps6507x_pmic_regs[0];
struct regulator_config config = { };
struct regulator_init_data *init_data;
struct regulator_init_data *init_data = NULL;
struct regulator_dev *rdev;
struct tps6507x_pmic *tps;
struct tps6507x_board *tps_board;
struct of_regulator_match *tps6507x_reg_matches = NULL;
int i;
int error;
unsigned int prop;
/**
* tps_board points to pmic related constants
@ -440,20 +391,8 @@ static int tps6507x_pmic_probe(struct platform_device *pdev)
*/
tps_board = dev_get_platdata(tps6507x_dev->dev);
if (IS_ENABLED(CONFIG_OF) && !tps_board &&
tps6507x_dev->dev->of_node)
tps_board = tps6507x_parse_dt_reg_data(pdev,
&tps6507x_reg_matches);
if (!tps_board)
return -EINVAL;
/**
* init_data points to array of regulator_init structures
* coming from the board-evm file.
*/
init_data = tps_board->tps6507x_pmic_init_data;
if (!init_data)
return -EINVAL;
if (tps_board)
init_data = tps_board->tps6507x_pmic_init_data;
tps = devm_kzalloc(&pdev->dev, sizeof(*tps), GFP_KERNEL);
if (!tps)
@ -467,13 +406,16 @@ static int tps6507x_pmic_probe(struct platform_device *pdev)
for (i = 0; i < TPS6507X_NUM_REGULATOR; i++, info++, init_data++) {
/* Register the regulators */
tps->info[i] = info;
if (init_data->driver_data) {
if (init_data && init_data->driver_data) {
struct tps6507x_reg_platform_data *data =
init_data->driver_data;
tps->info[i]->defdcdc_default = data->defdcdc_default;
info->defdcdc_default = data->defdcdc_default;
}
tps->desc[i].name = info->name;
tps->desc[i].of_match = of_match_ptr(info->name);
tps->desc[i].regulators_node = of_match_ptr("regulators");
tps->desc[i].of_parse_cb = tps6507x_pmic_of_parse_cb;
tps->desc[i].id = i;
tps->desc[i].n_voltages = info->table_len;
tps->desc[i].volt_table = info->table;
@ -485,17 +427,6 @@ static int tps6507x_pmic_probe(struct platform_device *pdev)
config.init_data = init_data;
config.driver_data = tps;
if (tps6507x_reg_matches) {
error = of_property_read_u32(
tps6507x_reg_matches[i].of_node,
"ti,defdcdc_default", &prop);
if (!error)
tps->info[i]->defdcdc_default = prop;
config.of_node = tps6507x_reg_matches[i].of_node;
}
rdev = devm_regulator_register(&pdev->dev, &tps->desc[i],
&config);
if (IS_ERR(rdev)) {