[PATCH v4 01/17] regulator: Convert drivers to use struct regulator_desc

[Andrey Smirnov <andrew.smirnov@xxxxxxxxx>]

To simplify porting kernel code, port a very basic struct
regulator_desc and convert all of the code to use it.

Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
---
 drivers/regulator/bcm2835.c | 6 ++++--
 drivers/regulator/core.c    | 8 ++++----
 drivers/regulator/fixed.c   | 6 ++++--
 include/regulator.h         | 6 +++++-
 4 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/drivers/regulator/bcm2835.c b/drivers/regulator/bcm2835.c
index 0ada05db16..ea7cf7fe1e 100644
--- a/drivers/regulator/bcm2835.c
+++ b/drivers/regulator/bcm2835.c
@@ -24,6 +24,7 @@ static struct regulator_bcm2835 {
 
 	struct device_d *dev;
 	struct regulator_dev rdev;
+	struct regulator_desc rdesc;
 } regs[] = {
 	REG_DEV(BCM2835_MBOX_POWER_DEVID_SDHCI, "bcm2835_mci0"),
 	REG_DEV(BCM2835_MBOX_POWER_DEVID_UART0, "uart0-pl0110"),
@@ -108,7 +109,7 @@ static int regulator_bcm2835_is_enabled(struct regulator_dev *rdev)
 	return msg_pwr->get_power_state.body.resp.state;
 }
 
-static struct regulator_ops bcm2835_ops = {
+const static struct regulator_ops bcm2835_ops = {
 	.enable = regulator_bcm2835_enable,
 	.disable = regulator_bcm2835_disable,
 	.is_enabled = regulator_bcm2835_is_enabled,
@@ -122,7 +123,8 @@ static int regulator_bcm2835_probe(struct device_d *dev)
 	for (i = 0; i < ARRAY_SIZE(regs); i++) {
 		rb = &regs[i];
 
-		rb->rdev.ops = &bcm2835_ops;
+		rb->rdesc.ops = &bcm2835_ops;
+		rb->rdev.desc = &rb->rdesc;
 		rb->dev = dev;
 
 		ret = dev_regulator_register(&rb->rdev, rb->devname, NULL);
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 39df980dcb..bcfbda62e3 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -52,10 +52,10 @@ static int regulator_enable_internal(struct regulator_internal *ri)
 		return 0;
 	}
 
-	if (!ri->rdev->ops->enable)
+	if (!ri->rdev->desc->ops->enable)
 		return -ENOSYS;
 
-	ret = ri->rdev->ops->enable(ri->rdev);
+	ret = ri->rdev->desc->ops->enable(ri->rdev);
 	if (ret)
 		return ret;
 
@@ -74,10 +74,10 @@ static int regulator_disable_internal(struct regulator_internal *ri)
 	if (!ri->enable_count)
 		return -EINVAL;
 
-	if (!ri->rdev->ops->disable)
+	if (!ri->rdev->desc->ops->disable)
 		return -ENOSYS;
 
-	ret = ri->rdev->ops->disable(ri->rdev);
+	ret = ri->rdev->desc->ops->disable(ri->rdev);
 	if (ret)
 		return ret;
 
diff --git a/drivers/regulator/fixed.c b/drivers/regulator/fixed.c
index 87554d22e3..cb5d785817 100644
--- a/drivers/regulator/fixed.c
+++ b/drivers/regulator/fixed.c
@@ -29,6 +29,7 @@ struct regulator_fixed {
 	int active_low;
 	int always_on;
 	struct regulator_dev rdev;
+	struct regulator_desc rdesc;
 };
 
 static int regulator_fixed_enable(struct regulator_dev *rdev)
@@ -54,7 +55,7 @@ static int regulator_fixed_disable(struct regulator_dev *rdev)
 	return gpio_direction_output(fix->gpio, fix->active_low);
 }
 
-static struct regulator_ops fixed_ops = {
+const static struct regulator_ops fixed_ops = {
 	.enable = regulator_fixed_enable,
 	.disable = regulator_fixed_disable,
 };
@@ -82,7 +83,8 @@ static int regulator_fixed_probe(struct device_d *dev)
 			fix->active_low = 1;
 	}
 
-	fix->rdev.ops = &fixed_ops;
+	fix->rdesc.ops = &fixed_ops;
+	fix->rdev.desc = &fix->rdesc;
 
 	if (of_find_property(dev->device_node, "regulator-always-on", NULL)) {
 		fix->always_on = 1;
diff --git a/include/regulator.h b/include/regulator.h
index 367e13f05b..907073607f 100644
--- a/include/regulator.h
+++ b/include/regulator.h
@@ -4,8 +4,12 @@
 /* struct regulator is an opaque object for consumers */
 struct regulator;
 
+struct regulator_desc {
+	const struct regulator_ops *ops;
+};
+
 struct regulator_dev {
-	struct regulator_ops *ops;
+	const struct regulator_desc *desc;
 	int boot_on;
 };
 
-- 
2.20.1


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