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authorLinus Torvalds <torvalds@linux-foundation.org>2011-11-30 16:24:24 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-11-30 16:24:24 -0800
commitd6e92d360c21494ed4ce3bcfa7c84b90cb075bba (patch)
treec438e085b6b21b93b3caface078e7990cc6992d4
parentcd5b49bce361caeb7488f5fa801326bcd799f6f2 (diff)
parentba305e31e88ea5c2f598ff9fbc5424711a429e30 (diff)
downloadlinux-linaro-stable-d6e92d360c21494ed4ce3bcfa7c84b90cb075bba.tar.gz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: regulator: twl: fix twl4030 support for smps regulators regulator: fix use after free bug regulator: aat2870: Fix the logic of checking if no id is matched in aat2870_get_regulator
-rw-r--r--drivers/regulator/aat2870-regulator.c2
-rw-r--r--drivers/regulator/core.c2
-rw-r--r--drivers/regulator/twl-regulator.c46
3 files changed, 46 insertions, 4 deletions
diff --git a/drivers/regulator/aat2870-regulator.c b/drivers/regulator/aat2870-regulator.c
index 5abeb3ac3e8d..298c6c6a2795 100644
--- a/drivers/regulator/aat2870-regulator.c
+++ b/drivers/regulator/aat2870-regulator.c
@@ -160,7 +160,7 @@ static struct aat2870_regulator *aat2870_get_regulator(int id)
break;
}
- if (!ri)
+ if (i == ARRAY_SIZE(aat2870_regulators))
return NULL;
ri->enable_addr = AAT2870_LDO_EN;
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 669d02160221..938398f3e869 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2799,8 +2799,8 @@ void regulator_unregister(struct regulator_dev *rdev)
list_del(&rdev->list);
if (rdev->supply)
regulator_put(rdev->supply);
- device_unregister(&rdev->dev);
kfree(rdev->constraints);
+ device_unregister(&rdev->dev);
mutex_unlock(&regulator_list_mutex);
}
EXPORT_SYMBOL_GPL(regulator_unregister);
diff --git a/drivers/regulator/twl-regulator.c b/drivers/regulator/twl-regulator.c
index ee8747f4fa08..11cc308d66e9 100644
--- a/drivers/regulator/twl-regulator.c
+++ b/drivers/regulator/twl-regulator.c
@@ -71,6 +71,7 @@ struct twlreg_info {
#define VREG_TYPE 1
#define VREG_REMAP 2
#define VREG_DEDICATED 3 /* LDO control */
+#define VREG_VOLTAGE_SMPS_4030 9
/* TWL6030 register offsets */
#define VREG_TRANS 1
#define VREG_STATE 2
@@ -514,6 +515,32 @@ static struct regulator_ops twl4030ldo_ops = {
.get_status = twl4030reg_get_status,
};
+static int
+twl4030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
+ unsigned *selector)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int vsel = DIV_ROUND_UP(min_uV - 600000, 12500);
+
+ twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS_4030,
+ vsel);
+ return 0;
+}
+
+static int twl4030smps_get_voltage(struct regulator_dev *rdev)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER,
+ VREG_VOLTAGE_SMPS_4030);
+
+ return vsel * 12500 + 600000;
+}
+
+static struct regulator_ops twl4030smps_ops = {
+ .set_voltage = twl4030smps_set_voltage,
+ .get_voltage = twl4030smps_get_voltage,
+};
+
static int twl6030ldo_list_voltage(struct regulator_dev *rdev, unsigned index)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
@@ -856,6 +883,21 @@ static struct regulator_ops twlsmps_ops = {
}, \
}
+#define TWL4030_ADJUSTABLE_SMPS(label, offset, num, turnon_delay, remap_conf) \
+ { \
+ .base = offset, \
+ .id = num, \
+ .delay = turnon_delay, \
+ .remap = remap_conf, \
+ .desc = { \
+ .name = #label, \
+ .id = TWL4030_REG_##label, \
+ .ops = &twl4030smps_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ }, \
+ }
+
#define TWL6030_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) { \
.base = offset, \
.min_mV = min_mVolts, \
@@ -947,8 +989,8 @@ static struct twlreg_info twl_regs[] = {
TWL4030_ADJUSTABLE_LDO(VINTANA2, 0x43, 12, 100, 0x08),
TWL4030_FIXED_LDO(VINTDIG, 0x47, 1500, 13, 100, 0x08),
TWL4030_ADJUSTABLE_LDO(VIO, 0x4b, 14, 1000, 0x08),
- TWL4030_ADJUSTABLE_LDO(VDD1, 0x55, 15, 1000, 0x08),
- TWL4030_ADJUSTABLE_LDO(VDD2, 0x63, 16, 1000, 0x08),
+ TWL4030_ADJUSTABLE_SMPS(VDD1, 0x55, 15, 1000, 0x08),
+ TWL4030_ADJUSTABLE_SMPS(VDD2, 0x63, 16, 1000, 0x08),
TWL4030_FIXED_LDO(VUSB1V5, 0x71, 1500, 17, 100, 0x08),
TWL4030_FIXED_LDO(VUSB1V8, 0x74, 1800, 18, 100, 0x08),
TWL4030_FIXED_LDO(VUSB3V1, 0x77, 3100, 19, 150, 0x08),