aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorMark Brown <broonie@sirena.org.uk>2013-04-28 02:13:50 +0100
committerMark Brown <broonie@sirena.org.uk>2013-04-28 02:13:50 +0100
commitbee546581424b5514ec6a034fb83fd4e95b804da (patch)
treea7ea259aaedb63025eb7e7db8789c21ef53d9f36
parentbcd5d1d978c70841d68c7a3725269df9d5a4abf8 (diff)
parent3ea9389656ddf8beb1b5b52b8db6333fa4a7c00e (diff)
downloadlinux-linaro-stable-bee546581424b5514ec6a034fb83fd4e95b804da.tar.gz
Merge remote-tracking branch 'regulator/topic/wm8994' into v3.9-rc8
-rw-r--r--drivers/regulator/wm8994-regulator.c61
1 files changed, 42 insertions, 19 deletions
diff --git a/drivers/regulator/wm8994-regulator.c b/drivers/regulator/wm8994-regulator.c
index 6ff872342648..a612c356a697 100644
--- a/drivers/regulator/wm8994-regulator.c
+++ b/drivers/regulator/wm8994-regulator.c
@@ -18,6 +18,7 @@
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
#include <linux/gpio.h>
#include <linux/slab.h>
@@ -28,6 +29,8 @@
struct wm8994_ldo {
struct regulator_dev *regulator;
struct wm8994 *wm8994;
+ struct regulator_consumer_supply supply;
+ struct regulator_init_data init_data;
};
#define WM8994_LDO1_MAX_SELECTOR 0x7
@@ -99,6 +102,26 @@ static const struct regulator_desc wm8994_ldo_desc[] = {
},
};
+static const struct regulator_consumer_supply wm8994_ldo_consumer[] = {
+ { .supply = "AVDD1" },
+ { .supply = "DCVDD" },
+};
+
+static const struct regulator_init_data wm8994_ldo_default[] = {
+ {
+ .constraints = {
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+ },
+ .num_consumer_supplies = 1,
+ },
+ {
+ .constraints = {
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+ },
+ .num_consumer_supplies = 1,
+ },
+};
+
static int wm8994_ldo_probe(struct platform_device *pdev)
{
struct wm8994 *wm8994 = dev_get_drvdata(pdev->dev.parent);
@@ -117,13 +140,29 @@ static int wm8994_ldo_probe(struct platform_device *pdev)
}
ldo->wm8994 = wm8994;
+ ldo->supply = wm8994_ldo_consumer[id];
+ ldo->supply.dev_name = dev_name(wm8994->dev);
config.dev = wm8994->dev;
config.driver_data = ldo;
config.regmap = wm8994->regmap;
- if (pdata) {
- config.init_data = pdata->ldo[id].init_data;
+ config.init_data = &ldo->init_data;
+ if (pdata)
config.ena_gpio = pdata->ldo[id].enable;
+ else if (wm8994->dev->of_node)
+ config.ena_gpio = wm8994->pdata.ldo[id].enable;
+
+ /* Use default constraints if none set up */
+ if (!pdata || !pdata->ldo[id].init_data || wm8994->dev->of_node) {
+ dev_dbg(wm8994->dev, "Using default init data, supply %s %s\n",
+ ldo->supply.dev_name, ldo->supply.supply);
+
+ ldo->init_data = wm8994_ldo_default[id];
+ ldo->init_data.consumer_supplies = &ldo->supply;
+ if (!config.ena_gpio)
+ ldo->init_data.constraints.valid_ops_mask = 0;
+ } else {
+ ldo->init_data = *pdata->ldo[id].init_data;
}
ldo->regulator = regulator_register(&wm8994_ldo_desc[id], &config);
@@ -162,23 +201,7 @@ static struct platform_driver wm8994_ldo_driver = {
},
};
-static int __init wm8994_ldo_init(void)
-{
- int ret;
-
- ret = platform_driver_register(&wm8994_ldo_driver);
- if (ret != 0)
- pr_err("Failed to register Wm8994 GP LDO driver: %d\n", ret);
-
- return ret;
-}
-subsys_initcall(wm8994_ldo_init);
-
-static void __exit wm8994_ldo_exit(void)
-{
- platform_driver_unregister(&wm8994_ldo_driver);
-}
-module_exit(wm8994_ldo_exit);
+module_platform_driver(wm8994_ldo_driver);
/* Module information */
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");