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authorKrzysztof Kozlowski <k.kozlowski@samsung.com>2015-01-05 12:48:42 +0100
committerMark Brown <broonie@kernel.org>2015-01-08 20:15:45 +0000
commitbfa21a0dfe6915dc85953b5d40ea9dae5fdf205f (patch)
treea65674f6cf409a546fc2a62c74e3ab25261a4f4d /drivers/regulator
parent1b3de223385d6bf2ab9bf2e9e80aebb26fedd426 (diff)
downloadop-kernel-dev-bfa21a0dfe6915dc85953b5d40ea9dae5fdf205f.zip
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regulator: Allow parsing custom properties when using simplified DT parsing
When drivers use simplified DT parsing method (they provide 'regulator_desc.of_match') they still may want to parse custom properties for some of the regulators. For example some of the regulators support GPIO enable control. Add a driver-supplied callback for such case. This way the regulator core parses common bindings offloading a lot of code from drivers and still custom properties may be used. The callback, called for each parsed regulator, may modify the 'regulator_config' initially passed to regulator_register(). Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/regulator')
-rw-r--r--drivers/regulator/core.c2
-rw-r--r--drivers/regulator/internal.h2
-rw-r--r--drivers/regulator/of_regulator.c11
3 files changed, 14 insertions, 1 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index c13b557..5fae8ca 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -3635,7 +3635,7 @@ regulator_register(const struct regulator_desc *regulator_desc,
return ERR_PTR(-ENOMEM);
}
- init_data = regulator_of_get_init_data(dev, regulator_desc,
+ init_data = regulator_of_get_init_data(dev, regulator_desc, config,
&rdev->dev.of_node);
if (!init_data) {
init_data = config->init_data;
diff --git a/drivers/regulator/internal.h b/drivers/regulator/internal.h
index 80ba2a3..c74ac87 100644
--- a/drivers/regulator/internal.h
+++ b/drivers/regulator/internal.h
@@ -38,11 +38,13 @@ struct regulator {
#ifdef CONFIG_OF
struct regulator_init_data *regulator_of_get_init_data(struct device *dev,
const struct regulator_desc *desc,
+ struct regulator_config *config,
struct device_node **node);
#else
static inline struct regulator_init_data *
regulator_of_get_init_data(struct device *dev,
const struct regulator_desc *desc,
+ struct regulator_config *config,
struct device_node **node)
{
return NULL;
diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c
index 91eaaf0..24e812c 100644
--- a/drivers/regulator/of_regulator.c
+++ b/drivers/regulator/of_regulator.c
@@ -270,6 +270,7 @@ EXPORT_SYMBOL_GPL(of_regulator_match);
struct regulator_init_data *regulator_of_get_init_data(struct device *dev,
const struct regulator_desc *desc,
+ struct regulator_config *config,
struct device_node **node)
{
struct device_node *search, *child;
@@ -307,6 +308,16 @@ struct regulator_init_data *regulator_of_get_init_data(struct device *dev,
break;
}
+ if (desc->of_parse_cb) {
+ if (desc->of_parse_cb(child, desc, config)) {
+ dev_err(dev,
+ "driver callback failed to parse DT for regulator %s\n",
+ child->name);
+ init_data = NULL;
+ break;
+ }
+ }
+
of_node_get(child);
*node = child;
break;
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