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regulator: da9055: Add DT support

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Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Adam Thomson 2014-02-06 18:03:13 +00:00 committed by Mark Brown
parent 38dbfb59d1
commit 8b61a28d61
1 changed files with 65 additions and 4 deletions
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69
drivers/regulator/da9055-regulator.c
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@ -19,6 +19,8 @@
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/of.h>
#include <linux/regulator/of_regulator.h>
#include <linux/mfd/da9055/core.h>
#include <linux/mfd/da9055/reg.h>
@ -446,6 +448,9 @@ static int da9055_gpio_init(struct da9055_regulator *regulator,
struct da9055_regulator_info *info = regulator->info;
int ret = 0;
if (!pdata)
return 0;
if (pdata->gpio_ren && pdata->gpio_ren[id]) {
char name[18];
int gpio_mux = pdata->gpio_ren[id];
@ -530,6 +535,59 @@ static inline struct da9055_regulator_info *find_regulator_info(int id)
return NULL;
}
#ifdef CONFIG_OF
static struct of_regulator_match da9055_reg_matches[] = {
{ .name = "BUCK1", },
{ .name = "BUCK2", },
{ .name = "LDO1", },
{ .name = "LDO2", },
{ .name = "LDO3", },
{ .name = "LDO4", },
{ .name = "LDO5", },
{ .name = "LDO6", },
};
static int da9055_regulator_dt_init(struct platform_device *pdev,
struct da9055_regulator *regulator,
struct regulator_config *config,
int regid)
{
struct device_node *nproot, *np;
int ret;
nproot = of_node_get(pdev->dev.parent->of_node);
if (!nproot)
return -ENODEV;
np = of_find_node_by_name(nproot, "regulators");
if (!np)
return -ENODEV;
ret = of_regulator_match(&pdev->dev, np, &da9055_reg_matches[regid], 1);
of_node_put(nproot);
if (ret < 0) {
dev_err(&pdev->dev, "Error matching regulator: %d\n", ret);
return -ENODEV;
}
config->init_data = da9055_reg_matches[regid].init_data;
config->of_node = da9055_reg_matches[regid].of_node;
if (!config->of_node)
return -ENODEV;
return 0;
}
#else
static inline da9055_regulator_dt_init(struct platform_device *pdev,
struct da9055_regulator *regulator,
struct regulator_config *config,
int regid)
{
return -ENODEV;
}
#endif /* CONFIG_OF */
static int da9055_regulator_probe(struct platform_device *pdev)
{
struct regulator_config config = { };
@ -538,9 +596,6 @@ static int da9055_regulator_probe(struct platform_device *pdev)
struct da9055_pdata *pdata = dev_get_platdata(da9055->dev);
int ret, irq;
if (pdata == NULL || pdata->regulators[pdev->id] == NULL)
return -ENODEV;
regulator = devm_kzalloc(&pdev->dev, sizeof(struct da9055_regulator),
GFP_KERNEL);
if (!regulator)
@ -557,8 +612,14 @@ static int da9055_regulator_probe(struct platform_device *pdev)
config.driver_data = regulator;
config.regmap = da9055->regmap;
if (pdata && pdata->regulators)
if (pdata && pdata->regulators) {
config.init_data = pdata->regulators[pdev->id];
} else {
ret = da9055_regulator_dt_init(pdev, regulator, &config,
pdev->id);
if (ret < 0)
return ret;
}
ret = da9055_gpio_init(regulator, &config, pdata, pdev->id);
if (ret < 0)