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path: root/drivers/regulator/ab8500.c
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Diffstat (limited to 'drivers/regulator/ab8500.c')
-rw-r--r--drivers/regulator/ab8500.c446
1 files changed, 370 insertions, 76 deletions
diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c
index c9b92531ae6..ffef433f167 100644
--- a/drivers/regulator/ab8500.c
+++ b/drivers/regulator/ab8500.c
@@ -21,43 +21,54 @@
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/ab8500.h>
+#include <linux/mfd/abx500/ab8500-gpio.h> /* for sysclkreq pins */
/**
* struct ab8500_regulator_info - ab8500 regulator information
* @dev: device pointer
* @desc: regulator description
* @regulator_dev: regulator device
+ * @is_enabled: status of regulator (on/off)
* @max_uV: maximum voltage (for variable voltage supplies)
* @min_uV: minimum voltage (for variable voltage supplies)
* @fixed_uV: typical voltage (for fixed voltage supplies)
+ * @load_lp_uA: maximum load in idle (low power) mode
* @update_bank: bank to control on/off
* @update_reg: register to control on/off
- * @update_mask: mask to enable/disable regulator
- * @update_val_enable: bits to enable the regulator in normal (high power) mode
+ * @update_mask: mask to enable/disable and set mode of regulator
+ * @update_val: bits holding the regulator current mode
+ * @update_val_idle: bits to enable the regulator in idle (low power) mode
+ * @update_val_normal: bits to enable the regulator in normal (high power) mode
* @voltage_bank: bank to control regulator voltage
* @voltage_reg: register to control regulator voltage
* @voltage_mask: mask to control regulator voltage
* @voltages: supported voltage table
* @voltages_len: number of supported voltages for the regulator
* @delay: startup/set voltage delay in us
+ * @gpio_pin: ab8500 gpio pin offset number (for sysclkreq regulator only)
*/
struct ab8500_regulator_info {
struct device *dev;
struct regulator_desc desc;
struct regulator_dev *regulator;
+ bool is_enabled;
int max_uV;
int min_uV;
int fixed_uV;
+ int load_lp_uA;
u8 update_bank;
u8 update_reg;
u8 update_mask;
- u8 update_val_enable;
+ u8 update_val;
+ u8 update_val_idle;
+ u8 update_val_normal;
u8 voltage_bank;
u8 voltage_reg;
u8 voltage_mask;
int const *voltages;
int voltages_len;
unsigned int delay;
+ enum ab8500_pin gpio_pin;
};
/* voltage tables for the vauxn/vintcore supplies */
@@ -113,15 +124,17 @@ static int ab8500_regulator_enable(struct regulator_dev *rdev)
ret = abx500_mask_and_set_register_interruptible(info->dev,
info->update_bank, info->update_reg,
- info->update_mask, info->update_val_enable);
+ info->update_mask, info->update_val);
if (ret < 0)
dev_err(rdev_get_dev(rdev),
"couldn't set enable bits for regulator\n");
+ info->is_enabled = true;
+
dev_vdbg(rdev_get_dev(rdev),
"%s-enable (bank, reg, mask, value): 0x%x, 0x%x, 0x%x, 0x%x\n",
info->desc.name, info->update_bank, info->update_reg,
- info->update_mask, info->update_val_enable);
+ info->update_mask, info->update_val);
return ret;
}
@@ -143,6 +156,8 @@ static int ab8500_regulator_disable(struct regulator_dev *rdev)
dev_err(rdev_get_dev(rdev),
"couldn't set disable bits for regulator\n");
+ info->is_enabled = false;
+
dev_vdbg(rdev_get_dev(rdev),
"%s-disable (bank, reg, mask, value): 0x%x, 0x%x, 0x%x, 0x%x\n",
info->desc.name, info->update_bank, info->update_reg,
@@ -151,6 +166,88 @@ static int ab8500_regulator_disable(struct regulator_dev *rdev)
return ret;
}
+static unsigned int ab8500_regulator_get_optimum_mode(
+ struct regulator_dev *rdev, int input_uV,
+ int output_uV, int load_uA)
+{
+ unsigned int mode;
+
+ struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
+
+ if (info == NULL) {
+ dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
+ return -EINVAL;
+ }
+
+ if (load_uA <= info->load_lp_uA)
+ mode = REGULATOR_MODE_IDLE;
+ else
+ mode = REGULATOR_MODE_NORMAL;
+
+ return mode;
+}
+
+static int ab8500_regulator_set_mode(struct regulator_dev *rdev,
+ unsigned int mode)
+{
+ int ret = 0;
+
+ struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
+
+ if (info == NULL) {
+ dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
+ return -EINVAL;
+ }
+
+ switch (mode) {
+ case REGULATOR_MODE_NORMAL:
+ info->update_val = info->update_val_normal;
+ break;
+ case REGULATOR_MODE_IDLE:
+ info->update_val = info->update_val_idle;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (info->is_enabled) {
+ ret = abx500_mask_and_set_register_interruptible(info->dev,
+ info->update_bank, info->update_reg,
+ info->update_mask, info->update_val);
+ if (ret < 0)
+ dev_err(rdev_get_dev(rdev),
+ "couldn't set regulator mode\n");
+
+ dev_vdbg(rdev_get_dev(rdev),
+ "%s-set_mode (bank, reg, mask, value): "
+ "0x%x, 0x%x, 0x%x, 0x%x\n",
+ info->desc.name, info->update_bank, info->update_reg,
+ info->update_mask, info->update_val);
+ }
+
+ return ret;
+}
+
+static unsigned int ab8500_regulator_get_mode(struct regulator_dev *rdev)
+{
+ struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
+ int ret;
+
+ if (info == NULL) {
+ dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
+ return -EINVAL;
+ }
+
+ if (info->update_val == info->update_val_normal)
+ ret = REGULATOR_MODE_NORMAL;
+ else if (info->update_val == info->update_val_idle)
+ ret = REGULATOR_MODE_IDLE;
+ else
+ ret = -EINVAL;
+
+ return ret;
+}
+
static int ab8500_regulator_is_enabled(struct regulator_dev *rdev)
{
int ret;
@@ -177,9 +274,11 @@ static int ab8500_regulator_is_enabled(struct regulator_dev *rdev)
info->update_mask, regval);
if (regval & info->update_mask)
- return true;
+ info->is_enabled = true;
else
- return false;
+ info->is_enabled = false;
+
+ return info->is_enabled;
}
static int ab8500_list_voltage(struct regulator_dev *rdev, unsigned selector)
@@ -275,8 +374,13 @@ static int ab8500_regulator_set_voltage(struct regulator_dev *rdev,
*selector = ret;
+ /* vintcore register has a different layout */
+ if (info->desc.id == AB8500_LDO_INTCORE)
+ regval = ((u8)ret) << 3;
+ else
+ regval = (u8)ret;
+
/* set the registers for the request */
- regval = (u8)ret;
ret = abx500_mask_and_set_register_interruptible(info->dev,
info->voltage_bank, info->voltage_reg,
info->voltage_mask, regval);
@@ -316,9 +420,12 @@ static int ab8500_regulator_set_voltage_time_sel(struct regulator_dev *rdev,
return info->delay;
}
-static struct regulator_ops ab8500_regulator_ops = {
+static struct regulator_ops ab8500_regulator_volt_mode_ops = {
.enable = ab8500_regulator_enable,
.disable = ab8500_regulator_disable,
+ .get_optimum_mode = ab8500_regulator_get_optimum_mode,
+ .set_mode = ab8500_regulator_set_mode,
+ .get_mode = ab8500_regulator_get_mode,
.is_enabled = ab8500_regulator_is_enabled,
.get_voltage = ab8500_regulator_get_voltage,
.set_voltage = ab8500_regulator_set_voltage,
@@ -339,16 +446,115 @@ static int ab8500_fixed_get_voltage(struct regulator_dev *rdev)
return info->fixed_uV;
}
-static struct regulator_ops ab8500_regulator_fixed_ops = {
+static struct regulator_ops ab8500_regulator_mode_ops = {
.enable = ab8500_regulator_enable,
.disable = ab8500_regulator_disable,
.is_enabled = ab8500_regulator_is_enabled,
+ .get_optimum_mode = ab8500_regulator_get_optimum_mode,
+ .set_mode = ab8500_regulator_set_mode,
+ .get_mode = ab8500_regulator_get_mode,
.get_voltage = ab8500_fixed_get_voltage,
.list_voltage = ab8500_list_voltage,
.enable_time = ab8500_regulator_enable_time,
.set_voltage_time_sel = ab8500_regulator_set_voltage_time_sel,
};
+static struct regulator_ops ab8500_regulator_ops = {
+ .enable = ab8500_regulator_enable,
+ .disable = ab8500_regulator_disable,
+ .is_enabled = ab8500_regulator_is_enabled,
+ .get_voltage = ab8500_fixed_get_voltage,
+ .list_voltage = ab8500_list_voltage,
+};
+
+static int ab8500_sysclkreq_enable(struct regulator_dev *rdev)
+{
+ int ret;
+ struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
+
+ if (info == NULL) {
+ dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
+ return -EINVAL;
+ }
+
+ ret = ab8500_gpio_config_select(info->dev, info->gpio_pin, false);
+ if (ret < 0) {
+ dev_err(rdev_get_dev(rdev),
+ "couldn't set sysclkreq pin selection\n");
+ return ret;
+ }
+
+ info->is_enabled = true;
+
+ dev_vdbg(rdev_get_dev(rdev),
+ "%s-enable (gpio_pin, gpio_select): %i, false\n",
+ info->desc.name, info->gpio_pin);
+
+ return ret;
+}
+
+static int ab8500_sysclkreq_disable(struct regulator_dev *rdev)
+{
+ int ret;
+ struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
+
+ if (info == NULL) {
+ dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
+ return -EINVAL;
+ }
+
+ ret = ab8500_gpio_config_select(info->dev, info->gpio_pin, true);
+ if (ret < 0) {
+ dev_err(rdev_get_dev(rdev),
+ "couldn't set gpio pin selection\n");
+ return ret;
+ }
+
+ info->is_enabled = false;
+
+ dev_vdbg(rdev_get_dev(rdev),
+ "%s-disable (gpio_pin, gpio_select): %i, true\n",
+ info->desc.name, info->gpio_pin);
+
+ return ret;
+}
+
+static int ab8500_sysclkreq_is_enabled(struct regulator_dev *rdev)
+{
+ int ret;
+ struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
+ bool gpio_select;
+
+ if (info == NULL) {
+ dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
+ return -EINVAL;
+ }
+
+ ret = ab8500_gpio_config_get_select(info->dev, info->gpio_pin,
+ &gpio_select);
+ if (ret < 0) {
+ dev_err(rdev_get_dev(rdev),
+ "couldn't read gpio pin selection\n");
+ return ret;
+ }
+
+ info->is_enabled = !gpio_select;
+
+ dev_vdbg(rdev_get_dev(rdev),
+ "%s-is_enabled (gpio_pin, is_enabled): %i, %i\n",
+ info->desc.name, info->gpio_pin, !gpio_select);
+
+ return info->is_enabled;
+}
+
+static struct regulator_ops ab8500_sysclkreq_ops = {
+ .enable = ab8500_sysclkreq_enable,
+ .disable = ab8500_sysclkreq_disable,
+ .is_enabled = ab8500_sysclkreq_is_enabled,
+ .get_voltage = ab8500_fixed_get_voltage,
+ .list_voltage = ab8500_list_voltage,
+};
+
static struct ab8500_regulator_info
ab8500_regulator_info[AB8500_NUM_REGULATORS] = {
/*
@@ -360,7 +566,7 @@ static struct ab8500_regulator_info
[AB8500_LDO_AUX1] = {
.desc = {
.name = "LDO-AUX1",
- .ops = &ab8500_regulator_ops,
+ .ops = &ab8500_regulator_volt_mode_ops,
.type = REGULATOR_VOLTAGE,
.id = AB8500_LDO_AUX1,
.owner = THIS_MODULE,
@@ -368,10 +574,13 @@ static struct ab8500_regulator_info
},
.min_uV = 1100000,
.max_uV = 3300000,
+ .load_lp_uA = 5000,
.update_bank = 0x04,
.update_reg = 0x09,
.update_mask = 0x03,
- .update_val_enable = 0x01,
+ .update_val = 0x01,
+ .update_val_idle = 0x03,
+ .update_val_normal = 0x01,
.voltage_bank = 0x04,
.voltage_reg = 0x1f,
.voltage_mask = 0x0f,
@@ -381,7 +590,7 @@ static struct ab8500_regulator_info
[AB8500_LDO_AUX2] = {
.desc = {
.name = "LDO-AUX2",
- .ops = &ab8500_regulator_ops,
+ .ops = &ab8500_regulator_volt_mode_ops,
.type = REGULATOR_VOLTAGE,
.id = AB8500_LDO_AUX2,
.owner = THIS_MODULE,
@@ -389,10 +598,13 @@ static struct ab8500_regulator_info
},
.min_uV = 1100000,
.max_uV = 3300000,
+ .load_lp_uA = 5000,
.update_bank = 0x04,
.update_reg = 0x09,
.update_mask = 0x0c,
- .update_val_enable = 0x04,
+ .update_val = 0x04,
+ .update_val_idle = 0x0c,
+ .update_val_normal = 0x04,
.voltage_bank = 0x04,
.voltage_reg = 0x20,
.voltage_mask = 0x0f,
@@ -402,7 +614,7 @@ static struct ab8500_regulator_info
[AB8500_LDO_AUX3] = {
.desc = {
.name = "LDO-AUX3",
- .ops = &ab8500_regulator_ops,
+ .ops = &ab8500_regulator_volt_mode_ops,
.type = REGULATOR_VOLTAGE,
.id = AB8500_LDO_AUX3,
.owner = THIS_MODULE,
@@ -410,10 +622,13 @@ static struct ab8500_regulator_info
},
.min_uV = 1100000,
.max_uV = 3300000,
+ .load_lp_uA = 5000,
.update_bank = 0x04,
.update_reg = 0x0a,
.update_mask = 0x03,
- .update_val_enable = 0x01,
+ .update_val = 0x01,
+ .update_val_idle = 0x03,
+ .update_val_normal = 0x01,
.voltage_bank = 0x04,
.voltage_reg = 0x21,
.voltage_mask = 0x07,
@@ -423,7 +638,7 @@ static struct ab8500_regulator_info
[AB8500_LDO_INTCORE] = {
.desc = {
.name = "LDO-INTCORE",
- .ops = &ab8500_regulator_ops,
+ .ops = &ab8500_regulator_volt_mode_ops,
.type = REGULATOR_VOLTAGE,
.id = AB8500_LDO_INTCORE,
.owner = THIS_MODULE,
@@ -431,10 +646,13 @@ static struct ab8500_regulator_info
},
.min_uV = 1100000,
.max_uV = 3300000,
+ .load_lp_uA = 5000,
.update_bank = 0x03,
.update_reg = 0x80,
.update_mask = 0x44,
- .update_val_enable = 0x04,
+ .update_val = 0x44,
+ .update_val_idle = 0x44,
+ .update_val_normal = 0x04,
.voltage_bank = 0x03,
.voltage_reg = 0x80,
.voltage_mask = 0x38,
@@ -450,7 +668,7 @@ static struct ab8500_regulator_info
[AB8500_LDO_TVOUT] = {
.desc = {
.name = "LDO-TVOUT",
- .ops = &ab8500_regulator_fixed_ops,
+ .ops = &ab8500_regulator_mode_ops,
.type = REGULATOR_VOLTAGE,
.id = AB8500_LDO_TVOUT,
.owner = THIS_MODULE,
@@ -458,30 +676,18 @@ static struct ab8500_regulator_info
},
.delay = 10000,
.fixed_uV = 2000000,
+ .load_lp_uA = 1000,
.update_bank = 0x03,
.update_reg = 0x80,
.update_mask = 0x82,
- .update_val_enable = 0x02,
- },
- [AB8500_LDO_USB] = {
- .desc = {
- .name = "LDO-USB",
- .ops = &ab8500_regulator_fixed_ops,
- .type = REGULATOR_VOLTAGE,
- .id = AB8500_LDO_USB,
- .owner = THIS_MODULE,
- .n_voltages = 1,
- },
- .fixed_uV = 3300000,
- .update_bank = 0x03,
- .update_reg = 0x82,
- .update_mask = 0x03,
- .update_val_enable = 0x01,
+ .update_val = 0x02,
+ .update_val_idle = 0x82,
+ .update_val_normal = 0x02,
},
[AB8500_LDO_AUDIO] = {
.desc = {
.name = "LDO-AUDIO",
- .ops = &ab8500_regulator_fixed_ops,
+ .ops = &ab8500_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = AB8500_LDO_AUDIO,
.owner = THIS_MODULE,
@@ -491,12 +697,12 @@ static struct ab8500_regulator_info
.update_bank = 0x03,
.update_reg = 0x83,
.update_mask = 0x02,
- .update_val_enable = 0x02,
+ .update_val = 0x02,
},
[AB8500_LDO_ANAMIC1] = {
.desc = {
.name = "LDO-ANAMIC1",
- .ops = &ab8500_regulator_fixed_ops,
+ .ops = &ab8500_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = AB8500_LDO_ANAMIC1,
.owner = THIS_MODULE,
@@ -506,12 +712,12 @@ static struct ab8500_regulator_info
.update_bank = 0x03,
.update_reg = 0x83,
.update_mask = 0x08,
- .update_val_enable = 0x08,
+ .update_val = 0x08,
},
[AB8500_LDO_ANAMIC2] = {
.desc = {
.name = "LDO-ANAMIC2",
- .ops = &ab8500_regulator_fixed_ops,
+ .ops = &ab8500_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = AB8500_LDO_ANAMIC2,
.owner = THIS_MODULE,
@@ -521,12 +727,12 @@ static struct ab8500_regulator_info
.update_bank = 0x03,
.update_reg = 0x83,
.update_mask = 0x10,
- .update_val_enable = 0x10,
+ .update_val = 0x10,
},
[AB8500_LDO_DMIC] = {
.desc = {
.name = "LDO-DMIC",
- .ops = &ab8500_regulator_fixed_ops,
+ .ops = &ab8500_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = AB8500_LDO_DMIC,
.owner = THIS_MODULE,
@@ -536,25 +742,58 @@ static struct ab8500_regulator_info
.update_bank = 0x03,
.update_reg = 0x83,
.update_mask = 0x04,
- .update_val_enable = 0x04,
+ .update_val = 0x04,
},
+
+ /*
+ * Regulators with fixed voltage and normal/idle modes
+ */
[AB8500_LDO_ANA] = {
.desc = {
.name = "LDO-ANA",
- .ops = &ab8500_regulator_fixed_ops,
+ .ops = &ab8500_regulator_mode_ops,
.type = REGULATOR_VOLTAGE,
.id = AB8500_LDO_ANA,
.owner = THIS_MODULE,
.n_voltages = 1,
},
.fixed_uV = 1200000,
+ .load_lp_uA = 1000,
.update_bank = 0x04,
.update_reg = 0x06,
.update_mask = 0x0c,
- .update_val_enable = 0x04,
+ .update_val = 0x04,
+ .update_val_idle = 0x0c,
+ .update_val_normal = 0x04,
},
-
+ /*
+ * SysClkReq regulators
+ */
+ [AB8500_SYSCLKREQ_2] = {
+ .desc = {
+ .name = "SYSCLKREQ-2",
+ .ops = &ab8500_sysclkreq_ops,
+ .type = REGULATOR_VOLTAGE,
+ .id = AB8500_SYSCLKREQ_2,
+ .owner = THIS_MODULE,
+ .n_voltages = 1,
+ },
+ .fixed_uV = 1, /* bogus value */
+ .gpio_pin = AB8500_PIN_GPIO1,
+ },
+ [AB8500_SYSCLKREQ_4] = {
+ .desc = {
+ .name = "SYSCLKREQ-4",
+ .ops = &ab8500_sysclkreq_ops,
+ .type = REGULATOR_VOLTAGE,
+ .id = AB8500_SYSCLKREQ_4,
+ .owner = THIS_MODULE,
+ .n_voltages = 1,
+ },
+ .fixed_uV = 1, /* bogus value */
+ .gpio_pin = AB8500_PIN_GPIO3,
+ },
};
struct ab8500_reg_init {
@@ -573,10 +812,9 @@ struct ab8500_reg_init {
static struct ab8500_reg_init ab8500_reg_init[] = {
/*
* 0x30, VanaRequestCtrl
- * 0x0C, VpllRequestCtrl
* 0xc0, VextSupply1RequestCtrl
*/
- REG_INIT(AB8500_REGUREQUESTCTRL2, 0x03, 0x04, 0xfc),
+ REG_INIT(AB8500_REGUREQUESTCTRL2, 0x03, 0x04, 0xf0),
/*
* 0x03, VextSupply2RequestCtrl
* 0x0c, VextSupply3RequestCtrl
@@ -643,13 +881,21 @@ static struct ab8500_reg_init ab8500_reg_init[] = {
REG_INIT(AB8500_REGUSWHPREQVALID2, 0x03, 0x0e, 0x1f),
/*
* 0x02, SysClkReq2Valid1
- * ...
+ * 0x04, SysClkReq3Valid1
+ * 0x08, SysClkReq4Valid1
+ * 0x10, SysClkReq5Valid1
+ * 0x20, SysClkReq6Valid1
+ * 0x40, SysClkReq7Valid1
* 0x80, SysClkReq8Valid1
*/
REG_INIT(AB8500_REGUSYSCLKREQVALID1, 0x03, 0x0f, 0xfe),
/*
* 0x02, SysClkReq2Valid2
- * ...
+ * 0x04, SysClkReq3Valid2
+ * 0x08, SysClkReq4Valid2
+ * 0x10, SysClkReq5Valid2
+ * 0x20, SysClkReq6Valid2
+ * 0x40, SysClkReq7Valid2
* 0x80, SysClkReq8Valid2
*/
REG_INIT(AB8500_REGUSYSCLKREQVALID2, 0x03, 0x10, 0xfe),
@@ -674,8 +920,8 @@ static struct ab8500_reg_init ab8500_reg_init[] = {
*/
REG_INIT(AB8500_REGUCTRL1VAMIC, 0x03, 0x84, 0x03),
/*
+ * 0x03, VpllRegu (NOTE! PRCMU register bits)
* 0x0c, VanaRegu
- * 0x03, VpllRegu
*/
REG_INIT(AB8500_VPLLVANAREGU, 0x04, 0x06, 0x0f),
/*
@@ -701,10 +947,6 @@ static struct ab8500_reg_init ab8500_reg_init[] = {
*/
REG_INIT(AB8500_VRF1VAUX3REGU, 0x04, 0x0a, 0x03),
/*
- * 0x3f, Vsmps1Sel1
- */
- REG_INIT(AB8500_VSMPS1SEL1, 0x04, 0x13, 0x3f),
- /*
* 0x0f, Vaux1Sel
*/
REG_INIT(AB8500_VAUX1SEL, 0x04, 0x1f, 0x0f),
@@ -737,17 +979,38 @@ static struct ab8500_reg_init ab8500_reg_init[] = {
REG_INIT(AB8500_REGUCTRLDISCH2, 0x04, 0x44, 0x16),
};
+/* Possibility to add debug */
+int __attribute__((weak)) ab8500_regulator_debug_init(
+ struct platform_device *pdev)
+{
+ return 0;
+}
+
+int __attribute__((weak)) ab8500_regulator_debug_exit(
+ struct platform_device *pdev)
+{
+ return 0;
+}
+
static __devinit int ab8500_regulator_probe(struct platform_device *pdev)
{
struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);
- struct ab8500_platform_data *pdata;
+ struct ab8500_platform_data *ppdata;
+ struct ab8500_regulator_platform_data *pdata;
int i, err;
if (!ab8500) {
dev_err(&pdev->dev, "null mfd parent\n");
return -EINVAL;
}
- pdata = dev_get_platdata(ab8500->dev);
+
+ ppdata = dev_get_platdata(ab8500->dev);
+ if (!ppdata) {
+ dev_err(&pdev->dev, "null parent pdata\n");
+ return -EINVAL;
+ }
+
+ pdata = ppdata->regulator;
if (!pdata) {
dev_err(&pdev->dev, "null pdata\n");
return -EINVAL;
@@ -759,32 +1022,30 @@ static __devinit int ab8500_regulator_probe(struct platform_device *pdev)
return -EINVAL;
}
+ /* initialize debug (initial state is recorded with this call) */
+ err = ab8500_regulator_debug_init(pdev);
+ if (err)
+ return err;
+
/* initialize registers */
- for (i = 0; i < pdata->num_regulator_reg_init; i++) {
+ for (i = 0; i < pdata->num_reg_init; i++) {
int id;
- u8 value;
+ u8 mask, value;
- id = pdata->regulator_reg_init[i].id;
- value = pdata->regulator_reg_init[i].value;
+ id = pdata->reg_init[i].id;
+ mask = pdata->reg_init[i].mask;
+ value = pdata->reg_init[i].value;
/* check for configuration errors */
- if (id >= AB8500_NUM_REGULATOR_REGISTERS) {
- dev_err(&pdev->dev,
- "Configuration error: id outside range.\n");
- return -EINVAL;
- }
- if (value & ~ab8500_reg_init[id].mask) {
- dev_err(&pdev->dev,
- "Configuration error: value outside mask.\n");
- return -EINVAL;
- }
+ BUG_ON(id >= AB8500_NUM_REGULATOR_REGISTERS);
+ BUG_ON(value & ~mask);
+ BUG_ON(mask & ~ab8500_reg_init[id].mask);
/* initialize register */
err = abx500_mask_and_set_register_interruptible(&pdev->dev,
ab8500_reg_init[id].bank,
ab8500_reg_init[id].addr,
- ab8500_reg_init[id].mask,
- value);
+ mask, value);
if (err < 0) {
dev_err(&pdev->dev,
"Failed to initialize 0x%02x, 0x%02x.\n",
@@ -796,10 +1057,32 @@ static __devinit int ab8500_regulator_probe(struct platform_device *pdev)
" init: 0x%02x, 0x%02x, 0x%02x, 0x%02x\n",
ab8500_reg_init[id].bank,
ab8500_reg_init[id].addr,
- ab8500_reg_init[id].mask,
- value);
+ mask, value);
+ }
+
+ /*
+ * This changes the default setting for VextSupply3Regu to low power.
+ * Active high or low is depending on OTP which is changed from ab8500v3.0.
+ * Remove this when ab8500v2.0 is no longer important.
+ * This only affects power consumption and it depends on the
+ * HREF OTP configurations.
+ */
+ if (abx500_get_chip_id(&pdev->dev) < 0x30) {
+ err = abx500_mask_and_set_register_interruptible(&pdev->dev,
+ AB8500_REGU_CTRL2, 0x08, 0x30, 0x30);
+ if (err < 0) {
+ dev_err(&pdev->dev,
+ "Failed to override 0x%02x, 0x%02x.\n",
+ AB8500_REGU_CTRL2, 0x08);
+ return err;
+ }
}
+ /* register external regulators (before Vaux1, 2 and 3) */
+ err = ab8500_ext_regulator_init(pdev);
+ if (err)
+ return err;
+
/* register all regulators */
for (i = 0; i < ARRAY_SIZE(ab8500_regulator_info); i++) {
struct ab8500_regulator_info *info = NULL;
@@ -844,7 +1127,7 @@ static __devinit int ab8500_regulator_probe(struct platform_device *pdev)
static __devexit int ab8500_regulator_remove(struct platform_device *pdev)
{
- int i;
+ int i, err;
for (i = 0; i < ARRAY_SIZE(ab8500_regulator_info); i++) {
struct ab8500_regulator_info *info = NULL;
@@ -856,6 +1139,16 @@ static __devexit int ab8500_regulator_remove(struct platform_device *pdev)
regulator_unregister(info->regulator);
}
+ /* remove external regulators (after Vaux1, 2 and 3) */
+ err = ab8500_ext_regulator_exit(pdev);
+ if (err)
+ return err;
+
+ /* remove regulator debug */
+ err = ab8500_regulator_debug_exit(pdev);
+ if (err)
+ return err;
+
return 0;
}
@@ -888,5 +1181,6 @@ module_exit(ab8500_regulator_exit);
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Sundar Iyer <sundar.iyer@stericsson.com>");
+MODULE_AUTHOR("Bengt Jonsson <bengt.g.jonsson@stericsson.com>");
MODULE_DESCRIPTION("Regulator Driver for ST-Ericsson AB8500 Mixed-Sig PMIC");
MODULE_ALIAS("platform:ab8500-regulator");
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-18 13:44:52 +0000