regulator: mc13892: add device tree probe support
It adds device tree probe support for mc13892-regulator driver.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c
index 2824804..46bfa4a 100644
--- a/drivers/regulator/mc13892-regulator.c
+++ b/drivers/regulator/mc13892-regulator.c
@@ -527,18 +527,27 @@
struct mc13xxx *mc13892 = dev_get_drvdata(pdev->dev.parent);
struct mc13xxx_regulator_platform_data *pdata =
dev_get_platdata(&pdev->dev);
- struct mc13xxx_regulator_init_data *init_data;
+ struct mc13xxx_regulator_init_data *mc13xxx_data;
int i, ret;
+ int num_regulators = 0;
u32 val;
+ num_regulators = mc13xxx_get_num_regulators_dt(pdev);
+ if (num_regulators <= 0 && pdata)
+ num_regulators = pdata->num_regulators;
+ if (num_regulators <= 0)
+ return -EINVAL;
+
priv = kzalloc(sizeof(*priv) +
- pdata->num_regulators * sizeof(priv->regulators[0]),
+ num_regulators * sizeof(priv->regulators[0]),
GFP_KERNEL);
if (!priv)
return -ENOMEM;
+ priv->num_regulators = num_regulators;
priv->mc13xxx_regulators = mc13892_regulators;
priv->mc13xxx = mc13892;
+ platform_set_drvdata(pdev, priv);
mc13xxx_lock(mc13892);
ret = mc13xxx_reg_read(mc13892, MC13892_REVISION, &val);
@@ -569,11 +578,27 @@
= mc13892_vcam_set_mode;
mc13892_regulators[MC13892_VCAM].desc.ops->get_mode
= mc13892_vcam_get_mode;
- for (i = 0; i < pdata->num_regulators; i++) {
- init_data = &pdata->regulators[i];
+
+ mc13xxx_data = mc13xxx_parse_regulators_dt(pdev, mc13892_regulators,
+ ARRAY_SIZE(mc13892_regulators));
+ for (i = 0; i < num_regulators; i++) {
+ struct regulator_init_data *init_data;
+ struct regulator_desc *desc;
+ struct device_node *node = NULL;
+ int id;
+
+ if (mc13xxx_data) {
+ id = mc13xxx_data[i].id;
+ init_data = mc13xxx_data[i].init_data;
+ node = mc13xxx_data[i].node;
+ } else {
+ id = pdata->regulators[i].id;
+ init_data = pdata->regulators[i].init_data;
+ }
+ desc = &mc13892_regulators[id].desc;
+
priv->regulators[i] = regulator_register(
- &mc13892_regulators[init_data->id].desc,
- &pdev->dev, init_data->init_data, priv, NULL);
+ desc, &pdev->dev, init_data, priv, node);
if (IS_ERR(priv->regulators[i])) {
dev_err(&pdev->dev, "failed to register regulator %s\n",
@@ -583,8 +608,6 @@
}
}
- platform_set_drvdata(pdev, priv);
-
return 0;
err:
while (--i >= 0)
@@ -600,13 +623,11 @@
static int __devexit mc13892_regulator_remove(struct platform_device *pdev)
{
struct mc13xxx_regulator_priv *priv = platform_get_drvdata(pdev);
- struct mc13xxx_regulator_platform_data *pdata =
- dev_get_platdata(&pdev->dev);
int i;
platform_set_drvdata(pdev, NULL);
- for (i = 0; i < pdata->num_regulators; i++)
+ for (i = 0; i < priv->num_regulators; i++)
regulator_unregister(priv->regulators[i]);
kfree(priv);