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regulator: Enable the ab8500 for Device Tree

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Here we setup the ab8500 regulator driver for DT. We first do
this in the normal way, by providing a match structure during
initialisation, but then we provide information so that
whilst probing we can use existing data structures to do DT
look-ups.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Lee Jones 2012-05-17 14:45:16 +01:00 committed by Mark Brown
parent a7ac1d9e4e
commit 3a8334b948
1 changed files with 54 additions and 0 deletions
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54
drivers/regulator/ab8500.c
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@ -18,9 +18,12 @@
#include <linux/platform_device.h>
#include <linux/mfd/abx500.h>
#include <linux/mfd/abx500/ab8500.h>
#include <linux/of.h>
#include <linux/regulator/of_regulator.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/ab8500.h>
#include <linux/slab.h>
/**
* struct ab8500_regulator_info - ab8500 regulator information
@ -790,12 +793,57 @@ static __devinit int ab8500_regulator_register(struct platform_device *pdev,
return 0;
}
static struct of_regulator_match ab8500_regulator_matches[] = {
{ .name = "LDO-AUX1", .driver_data = (void *) AB8500_LDO_AUX1, },
{ .name = "LDO-AUX2", .driver_data = (void *) AB8500_LDO_AUX2, },
{ .name = "LDO-AUX3", .driver_data = (void *) AB8500_LDO_AUX3, },
{ .name = "LDO-INTCORE", .driver_data = (void *) AB8500_LDO_INTCORE, },
{ .name = "LDO-TVOUT", .driver_data = (void *) AB8500_LDO_TVOUT, },
{ .name = "LDO-USB", .driver_data = (void *) AB8500_LDO_USB, },
{ .name = "LDO-AUDIO", .driver_data = (void *) AB8500_LDO_AUDIO, },
{ .name = "LDO-ANAMIC1", .driver_data = (void *) AB8500_LDO_ANAMIC1, },
{ .name = "LDO-ANAMIC2", .driver_data = (void *) AB8500_LDO_ANAMIC2, },
{ .name = "LDO-DMIC", .driver_data = (void *) AB8500_LDO_DMIC, },
{ .name = "LDO-ANA", .driver_data = (void *) AB8500_LDO_ANA, },
};
static __devinit int
ab8500_regulator_of_probe(struct platform_device *pdev, struct device_node *np)
{
int err, i;
for (i = 0; i < ARRAY_SIZE(ab8500_regulator_info); i++) {
err = ab8500_regulator_register(
pdev, ab8500_regulator_matches[i].init_data,
i, ab8500_regulator_matches[i].of_node);
if (err)
return err;
}
return 0;
}
static __devinit int ab8500_regulator_probe(struct platform_device *pdev)
{
struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);
struct ab8500_platform_data *pdata;
struct device_node *np = pdev->dev.of_node;
int i, err;
if (np) {
err = of_regulator_match(&pdev->dev, np,
ab8500_regulator_matches,
ARRAY_SIZE(ab8500_regulator_matches));
if (err < 0) {
dev_err(&pdev->dev,
"Error parsing regulator init data: %d\n", err);
return err;
}
err = ab8500_regulator_of_probe(pdev, np);
return err;
}
if (!ab8500) {
dev_err(&pdev->dev, "null mfd parent\n");
return -EINVAL;
@ -858,12 +906,18 @@ static __devexit int ab8500_regulator_remove(struct platform_device *pdev)
return 0;
}
static const struct of_device_id ab8500_regulator_match[] = {
{ .compatible = "stericsson,ab8500-regulator", },
{}
};
static struct platform_driver ab8500_regulator_driver = {
.probe = ab8500_regulator_probe,
.remove = __devexit_p(ab8500_regulator_remove),
.driver = {
.name = "ab8500-regulator",
.owner = THIS_MODULE,
.of_match_table = ab8500_regulator_match,
},
};