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authorJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>2009-04-08 00:34:16 +0400
committerJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>2009-04-08 00:34:16 +0400
commit38f4b8c0da01ae7cd9b93386842ce272d6fde9ab (patch)
tree3c8c52201aac038094bfea7efdd0984a8f62045e /drivers/regulator/wm8350-regulator.c
parenta811454027352c762e0d5bba1b1d8f7d26bf96ae (diff)
parent8e2c4f2844c0e8dcdfe312e5f2204854ca8532c6 (diff)
downloadlinux-38f4b8c0da01ae7cd9b93386842ce272d6fde9ab.tar.xz
Merge commit 'origin/master' into for-linus/xen/master
* commit 'origin/master': (4825 commits) Fix build errors due to CONFIG_BRANCH_TRACER=y parport: Use the PCI IRQ if offered tty: jsm cleanups Adjust path to gpio headers KGDB_SERIAL_CONSOLE check for module Change KCONFIG name tty: Blackin CTS/RTS Change hardware flow control from poll to interrupt driven Add support for the MAX3100 SPI UART. lanana: assign a device name and numbering for MAX3100 serqt: initial clean up pass for tty side tty: Use the generic RS485 ioctl on CRIS tty: Correct inline types for tty_driver_kref_get() splice: fix deadlock in splicing to file nilfs2: support nanosecond timestamp nilfs2: introduce secondary super block nilfs2: simplify handling of active state of segments nilfs2: mark minor flag for checkpoint created by internal operation nilfs2: clean up sketch file nilfs2: super block operations fix endian bug ... Conflicts: arch/x86/include/asm/thread_info.h arch/x86/lguest/boot.c drivers/xen/manage.c
Diffstat (limited to 'drivers/regulator/wm8350-regulator.c')
-rw-r--r--drivers/regulator/wm8350-regulator.c57
1 files changed, 50 insertions, 7 deletions
diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c
index 5056e23e4414..771eca1066b5 100644
--- a/drivers/regulator/wm8350-regulator.c
+++ b/drivers/regulator/wm8350-regulator.c
@@ -24,6 +24,9 @@
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
+/* Maximum value possible for VSEL */
+#define WM8350_DCDC_MAX_VSEL 0x66
+
/* Microamps */
static const int isink_cur[] = {
4,
@@ -385,6 +388,14 @@ static int wm8350_dcdc_get_voltage(struct regulator_dev *rdev)
return wm8350_dcdc_val_to_mvolts(val) * 1000;
}
+static int wm8350_dcdc_list_voltage(struct regulator_dev *rdev,
+ unsigned selector)
+{
+ if (selector > WM8350_DCDC_MAX_VSEL)
+ return -EINVAL;
+ return wm8350_dcdc_val_to_mvolts(selector) * 1000;
+}
+
static int wm8350_dcdc_set_suspend_voltage(struct regulator_dev *rdev, int uV)
{
struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
@@ -775,6 +786,14 @@ static int wm8350_ldo_get_voltage(struct regulator_dev *rdev)
return wm8350_ldo_val_to_mvolts(val) * 1000;
}
+static int wm8350_ldo_list_voltage(struct regulator_dev *rdev,
+ unsigned selector)
+{
+ if (selector > WM8350_LDO1_VSEL_MASK)
+ return -EINVAL;
+ return wm8350_ldo_val_to_mvolts(selector) * 1000;
+}
+
int wm8350_dcdc_set_slot(struct wm8350 *wm8350, int dcdc, u16 start,
u16 stop, u16 fault)
{
@@ -1031,18 +1050,30 @@ static unsigned int wm8350_dcdc_get_mode(struct regulator_dev *rdev)
int dcdc = rdev_get_id(rdev);
u16 mask, sleep, active, force;
int mode = REGULATOR_MODE_NORMAL;
+ int reg;
- if (dcdc < WM8350_DCDC_1 || dcdc > WM8350_DCDC_6)
- return -EINVAL;
-
- if (dcdc == WM8350_DCDC_2 || dcdc == WM8350_DCDC_5)
+ switch (dcdc) {
+ case WM8350_DCDC_1:
+ reg = WM8350_DCDC1_FORCE_PWM;
+ break;
+ case WM8350_DCDC_3:
+ reg = WM8350_DCDC3_FORCE_PWM;
+ break;
+ case WM8350_DCDC_4:
+ reg = WM8350_DCDC4_FORCE_PWM;
+ break;
+ case WM8350_DCDC_6:
+ reg = WM8350_DCDC6_FORCE_PWM;
+ break;
+ default:
return -EINVAL;
+ }
mask = 1 << (dcdc - WM8350_DCDC_1);
active = wm8350_reg_read(wm8350, WM8350_DCDC_ACTIVE_OPTIONS) & mask;
+ force = wm8350_reg_read(wm8350, reg) & WM8350_DCDC1_FORCE_PWM_ENA;
sleep = wm8350_reg_read(wm8350, WM8350_DCDC_SLEEP_OPTIONS) & mask;
- force = wm8350_reg_read(wm8350, WM8350_DCDC1_FORCE_PWM)
- & WM8350_DCDC1_FORCE_PWM_ENA;
+
dev_dbg(wm8350->dev, "mask %x active %x sleep %x force %x",
mask, active, sleep, force);
@@ -1150,6 +1181,7 @@ static int wm8350_ldo_is_enabled(struct regulator_dev *rdev)
static struct regulator_ops wm8350_dcdc_ops = {
.set_voltage = wm8350_dcdc_set_voltage,
.get_voltage = wm8350_dcdc_get_voltage,
+ .list_voltage = wm8350_dcdc_list_voltage,
.enable = wm8350_dcdc_enable,
.disable = wm8350_dcdc_disable,
.get_mode = wm8350_dcdc_get_mode,
@@ -1173,6 +1205,7 @@ static struct regulator_ops wm8350_dcdc2_5_ops = {
static struct regulator_ops wm8350_ldo_ops = {
.set_voltage = wm8350_ldo_set_voltage,
.get_voltage = wm8350_ldo_get_voltage,
+ .list_voltage = wm8350_ldo_list_voltage,
.enable = wm8350_ldo_enable,
.disable = wm8350_ldo_disable,
.is_enabled = wm8350_ldo_is_enabled,
@@ -1197,6 +1230,7 @@ static struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = {
.ops = &wm8350_dcdc_ops,
.irq = WM8350_IRQ_UV_DC1,
.type = REGULATOR_VOLTAGE,
+ .n_voltages = WM8350_DCDC_MAX_VSEL + 1,
.owner = THIS_MODULE,
},
{
@@ -1213,6 +1247,7 @@ static struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = {
.ops = &wm8350_dcdc_ops,
.irq = WM8350_IRQ_UV_DC3,
.type = REGULATOR_VOLTAGE,
+ .n_voltages = WM8350_DCDC_MAX_VSEL + 1,
.owner = THIS_MODULE,
},
{
@@ -1221,6 +1256,7 @@ static struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = {
.ops = &wm8350_dcdc_ops,
.irq = WM8350_IRQ_UV_DC4,
.type = REGULATOR_VOLTAGE,
+ .n_voltages = WM8350_DCDC_MAX_VSEL + 1,
.owner = THIS_MODULE,
},
{
@@ -1237,6 +1273,7 @@ static struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = {
.ops = &wm8350_dcdc_ops,
.irq = WM8350_IRQ_UV_DC6,
.type = REGULATOR_VOLTAGE,
+ .n_voltages = WM8350_DCDC_MAX_VSEL + 1,
.owner = THIS_MODULE,
},
{
@@ -1245,6 +1282,7 @@ static struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = {
.ops = &wm8350_ldo_ops,
.irq = WM8350_IRQ_UV_LDO1,
.type = REGULATOR_VOLTAGE,
+ .n_voltages = WM8350_LDO1_VSEL_MASK + 1,
.owner = THIS_MODULE,
},
{
@@ -1253,6 +1291,7 @@ static struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = {
.ops = &wm8350_ldo_ops,
.irq = WM8350_IRQ_UV_LDO2,
.type = REGULATOR_VOLTAGE,
+ .n_voltages = WM8350_LDO2_VSEL_MASK + 1,
.owner = THIS_MODULE,
},
{
@@ -1261,6 +1300,7 @@ static struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = {
.ops = &wm8350_ldo_ops,
.irq = WM8350_IRQ_UV_LDO3,
.type = REGULATOR_VOLTAGE,
+ .n_voltages = WM8350_LDO3_VSEL_MASK + 1,
.owner = THIS_MODULE,
},
{
@@ -1269,6 +1309,7 @@ static struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = {
.ops = &wm8350_ldo_ops,
.irq = WM8350_IRQ_UV_LDO4,
.type = REGULATOR_VOLTAGE,
+ .n_voltages = WM8350_LDO4_VSEL_MASK + 1,
.owner = THIS_MODULE,
},
{
@@ -1293,6 +1334,7 @@ static void pmic_uv_handler(struct wm8350 *wm8350, int irq, void *data)
{
struct regulator_dev *rdev = (struct regulator_dev *)data;
+ mutex_lock(&rdev->mutex);
if (irq == WM8350_IRQ_CS1 || irq == WM8350_IRQ_CS2)
regulator_notifier_call_chain(rdev,
REGULATOR_EVENT_REGULATION_OUT,
@@ -1301,6 +1343,7 @@ static void pmic_uv_handler(struct wm8350 *wm8350, int irq, void *data)
regulator_notifier_call_chain(rdev,
REGULATOR_EVENT_UNDER_VOLTAGE,
wm8350);
+ mutex_unlock(&rdev->mutex);
}
static int wm8350_regulator_probe(struct platform_device *pdev)
@@ -1333,9 +1376,9 @@ static int wm8350_regulator_probe(struct platform_device *pdev)
break;
}
-
/* register regulator */
rdev = regulator_register(&wm8350_reg[pdev->id], &pdev->dev,
+ pdev->dev.platform_data,
dev_get_drvdata(&pdev->dev));
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "failed to register %s\n",