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regulator: ab8500-ext: Register as a device in its own right 

Some platforms don't support the AB8500 external regulators, so instead
of having a list of is_<platform>() calls prior to calling
ab8500_ext_regulator_init() from ab8500_regulator_probe(), we can only
register as a platform device on platforms which require them. It means
we also have more control over them when booting with Device Tree.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonielinaro.org>
This commit is contained in:
Lee Jones 2013-06-07 17:11:26 +01:00 committed by Mark Brown
parent 33fb880249
commit 5a49b4a527
3 changed files with 32 additions and 22 deletions
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33
drivers/regulator/ab8500-ext.c
View File

@ -333,7 +333,7 @@ static struct ab8500_ext_regulator_info
},
};
int ab8500_ext_regulator_init(struct platform_device *pdev)
int ab8500_ext_regulator_probe(struct platform_device *pdev)
{
struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);
struct ab8500_platform_data *ppdata;
@ -409,7 +409,7 @@ int ab8500_ext_regulator_init(struct platform_device *pdev)
return 0;
}
void ab8500_ext_regulator_exit(struct platform_device *pdev)
int ab8500_ext_regulator_remove(struct platform_device *pdev)
{
int i;
@ -422,8 +422,37 @@ void ab8500_ext_regulator_exit(struct platform_device *pdev)
regulator_unregister(info->rdev);
}
return 0;
}
static struct platform_driver ab8500_ext_regulator_driver = {
.probe = ab8500_ext_regulator_probe,
.remove = ab8500_ext_regulator_remove,
.driver = {
.name = "ab8500-ext-regulator",
.owner = THIS_MODULE,
},
};
static int __init ab8500_ext_regulator_init(void)
{
int ret;
ret = platform_driver_register(&ab8500_ext_regulator_driver);
if (ret)
pr_err("Failed to register ab8500 ext regulator: %d\n", ret);
return ret;
}
subsys_initcall(ab8500_ext_regulator_init);
static void __exit ab8500_ext_regulator_exit(void)
{
platform_driver_unregister(&ab8500_ext_regulator_driver);
}
module_exit(ab8500_ext_regulator_exit);
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Bengt Jonsson <bengt.g.jonsson@stericsson.com>");
MODULE_DESCRIPTION("AB8500 external regulator driver");

17
drivers/regulator/ab8500.c
View File

@ -3156,23 +3156,13 @@ static int ab8500_regulator_probe(struct platform_device *pdev)
return err;
}
if (!is_ab8505(ab8500)) {
/* register external regulators (before Vaux1, 2 and 3) */
err = ab8500_ext_regulator_init(pdev);
if (err)
return err;
}
/* register all regulators */
for (i = 0; i < abx500_regulator.info_size; i++) {
err = ab8500_regulator_register(pdev, &pdata->regulator[i],
i, NULL);
if (err < 0) {
if (!is_ab8505(ab8500))
ab8500_ext_regulator_exit(pdev);
if (err < 0)
return err;
}
}
return 0;
}
@ -3180,7 +3170,6 @@ static int ab8500_regulator_probe(struct platform_device *pdev)
static int ab8500_regulator_remove(struct platform_device *pdev)
{
int i, err;
struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);
for (i = 0; i < abx500_regulator.info_size; i++) {
struct ab8500_regulator_info *info = NULL;
@ -3192,10 +3181,6 @@ static int ab8500_regulator_remove(struct platform_device *pdev)
regulator_unregister(info->regulator);
}
/* remove external regulators (after Vaux1, 2 and 3) */
if (!is_ab8505(ab8500))
ab8500_ext_regulator_exit(pdev);
/* remove regulator debug */
err = ab8500_regulator_debug_exit(pdev);
if (err)

4
include/linux/regulator/ab8500.h
View File

@ -336,8 +336,4 @@ static inline int ab8500_regulator_debug_exit(struct platform_device *pdev)
}
#endif
/* AB8500 external regulator functions. */
int ab8500_ext_regulator_init(struct platform_device *pdev);
void ab8500_ext_regulator_exit(struct platform_device *pdev);
#endif