#include <linux/gpio.h>
#include <linux/mfd/tps65910.h>
-#define TPS65910_REG_VRTC 0
-#define TPS65910_REG_VIO 1
-#define TPS65910_REG_VDD1 2
-#define TPS65910_REG_VDD2 3
-#define TPS65910_REG_VDD3 4
-#define TPS65910_REG_VDIG1 5
-#define TPS65910_REG_VDIG2 6
-#define TPS65910_REG_VPLL 7
-#define TPS65910_REG_VDAC 8
-#define TPS65910_REG_VAUX1 9
-#define TPS65910_REG_VAUX2 10
-#define TPS65910_REG_VAUX33 11
-#define TPS65910_REG_VMMC 12
-
-#define TPS65911_REG_VDDCTRL 4
-#define TPS65911_REG_LDO1 5
-#define TPS65911_REG_LDO2 6
-#define TPS65911_REG_LDO3 7
-#define TPS65911_REG_LDO4 8
-#define TPS65911_REG_LDO5 9
-#define TPS65911_REG_LDO6 10
-#define TPS65911_REG_LDO7 11
-#define TPS65911_REG_LDO8 12
-
#define TPS65910_SUPPLY_STATE_ENABLED 0x1
+#define EXT_SLEEP_CONTROL (TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1 | \
+ TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2 | \
+ TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3 | \
+ TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP)
/* supported VIO voltages in milivolts */
static const u16 VIO_VSEL_table[] = {
const char *name;
unsigned min_uV;
unsigned max_uV;
- u8 table_len;
- const u16 *table;
+ u8 n_voltages;
+ const u16 *voltage_table;
};
static struct tps_info tps65910_regs[] = {
.name = "VIO",
.min_uV = 1500000,
.max_uV = 3300000,
- .table_len = ARRAY_SIZE(VIO_VSEL_table),
- .table = VIO_VSEL_table,
+ .n_voltages = ARRAY_SIZE(VIO_VSEL_table),
+ .voltage_table = VIO_VSEL_table,
},
{
.name = "VDD1",
.name = "VDD3",
.min_uV = 5000000,
.max_uV = 5000000,
- .table_len = ARRAY_SIZE(VDD3_VSEL_table),
- .table = VDD3_VSEL_table,
+ .n_voltages = ARRAY_SIZE(VDD3_VSEL_table),
+ .voltage_table = VDD3_VSEL_table,
},
{
.name = "VDIG1",
.min_uV = 1200000,
.max_uV = 2700000,
- .table_len = ARRAY_SIZE(VDIG1_VSEL_table),
- .table = VDIG1_VSEL_table,
+ .n_voltages = ARRAY_SIZE(VDIG1_VSEL_table),
+ .voltage_table = VDIG1_VSEL_table,
},
{
.name = "VDIG2",
.min_uV = 1000000,
.max_uV = 1800000,
- .table_len = ARRAY_SIZE(VDIG2_VSEL_table),
- .table = VDIG2_VSEL_table,
+ .n_voltages = ARRAY_SIZE(VDIG2_VSEL_table),
+ .voltage_table = VDIG2_VSEL_table,
},
{
.name = "VPLL",
.min_uV = 1000000,
.max_uV = 2500000,
- .table_len = ARRAY_SIZE(VPLL_VSEL_table),
- .table = VPLL_VSEL_table,
+ .n_voltages = ARRAY_SIZE(VPLL_VSEL_table),
+ .voltage_table = VPLL_VSEL_table,
},
{
.name = "VDAC",
.min_uV = 1800000,
.max_uV = 2850000,
- .table_len = ARRAY_SIZE(VDAC_VSEL_table),
- .table = VDAC_VSEL_table,
+ .n_voltages = ARRAY_SIZE(VDAC_VSEL_table),
+ .voltage_table = VDAC_VSEL_table,
},
{
.name = "VAUX1",
.min_uV = 1800000,
.max_uV = 2850000,
- .table_len = ARRAY_SIZE(VAUX1_VSEL_table),
- .table = VAUX1_VSEL_table,
+ .n_voltages = ARRAY_SIZE(VAUX1_VSEL_table),
+ .voltage_table = VAUX1_VSEL_table,
},
{
.name = "VAUX2",
.min_uV = 1800000,
.max_uV = 3300000,
- .table_len = ARRAY_SIZE(VAUX2_VSEL_table),
- .table = VAUX2_VSEL_table,
+ .n_voltages = ARRAY_SIZE(VAUX2_VSEL_table),
+ .voltage_table = VAUX2_VSEL_table,
},
{
.name = "VAUX33",
.min_uV = 1800000,
.max_uV = 3300000,
- .table_len = ARRAY_SIZE(VAUX33_VSEL_table),
- .table = VAUX33_VSEL_table,
+ .n_voltages = ARRAY_SIZE(VAUX33_VSEL_table),
+ .voltage_table = VAUX33_VSEL_table,
},
{
.name = "VMMC",
.min_uV = 1800000,
.max_uV = 3300000,
- .table_len = ARRAY_SIZE(VMMC_VSEL_table),
- .table = VMMC_VSEL_table,
+ .n_voltages = ARRAY_SIZE(VMMC_VSEL_table),
+ .voltage_table = VMMC_VSEL_table,
},
};
static struct tps_info tps65911_regs[] = {
+ {
+ .name = "VRTC",
+ },
{
.name = "VIO",
.min_uV = 1500000,
.max_uV = 3300000,
- .table_len = ARRAY_SIZE(VIO_VSEL_table),
- .table = VIO_VSEL_table,
+ .n_voltages = ARRAY_SIZE(VIO_VSEL_table),
+ .voltage_table = VIO_VSEL_table,
},
{
.name = "VDD1",
.min_uV = 600000,
.max_uV = 4500000,
+ .n_voltages = 73,
},
{
.name = "VDD2",
.min_uV = 600000,
.max_uV = 4500000,
+ .n_voltages = 73,
},
{
.name = "VDDCTRL",
.min_uV = 600000,
.max_uV = 1400000,
+ .n_voltages = 65,
},
{
.name = "LDO1",
.min_uV = 1000000,
.max_uV = 3300000,
+ .n_voltages = 47,
},
{
.name = "LDO2",
.min_uV = 1000000,
.max_uV = 3300000,
+ .n_voltages = 47,
},
{
.name = "LDO3",
.min_uV = 1000000,
.max_uV = 3300000,
+ .n_voltages = 24,
},
{
.name = "LDO4",
.min_uV = 1000000,
.max_uV = 3300000,
+ .n_voltages = 47,
},
{
.name = "LDO5",
.min_uV = 1000000,
.max_uV = 3300000,
+ .n_voltages = 24,
},
{
.name = "LDO6",
.min_uV = 1000000,
.max_uV = 3300000,
+ .n_voltages = 24,
},
{
.name = "LDO7",
.min_uV = 1000000,
.max_uV = 3300000,
+ .n_voltages = 24,
},
{
.name = "LDO8",
.min_uV = 1000000,
.max_uV = 3300000,
+ .n_voltages = 24,
},
};
+#define EXT_CONTROL_REG_BITS(id, regs_offs, bits) (((regs_offs) << 8) | (bits))
+static unsigned int tps65910_ext_sleep_control[] = {
+ 0,
+ EXT_CONTROL_REG_BITS(VIO, 1, 0),
+ EXT_CONTROL_REG_BITS(VDD1, 1, 1),
+ EXT_CONTROL_REG_BITS(VDD2, 1, 2),
+ EXT_CONTROL_REG_BITS(VDD3, 1, 3),
+ EXT_CONTROL_REG_BITS(VDIG1, 0, 1),
+ EXT_CONTROL_REG_BITS(VDIG2, 0, 2),
+ EXT_CONTROL_REG_BITS(VPLL, 0, 6),
+ EXT_CONTROL_REG_BITS(VDAC, 0, 7),
+ EXT_CONTROL_REG_BITS(VAUX1, 0, 3),
+ EXT_CONTROL_REG_BITS(VAUX2, 0, 4),
+ EXT_CONTROL_REG_BITS(VAUX33, 0, 5),
+ EXT_CONTROL_REG_BITS(VMMC, 0, 0),
+};
+
+static unsigned int tps65911_ext_sleep_control[] = {
+ 0,
+ EXT_CONTROL_REG_BITS(VIO, 1, 0),
+ EXT_CONTROL_REG_BITS(VDD1, 1, 1),
+ EXT_CONTROL_REG_BITS(VDD2, 1, 2),
+ EXT_CONTROL_REG_BITS(VDDCTRL, 1, 3),
+ EXT_CONTROL_REG_BITS(LDO1, 0, 1),
+ EXT_CONTROL_REG_BITS(LDO2, 0, 2),
+ EXT_CONTROL_REG_BITS(LDO3, 0, 7),
+ EXT_CONTROL_REG_BITS(LDO4, 0, 6),
+ EXT_CONTROL_REG_BITS(LDO5, 0, 3),
+ EXT_CONTROL_REG_BITS(LDO6, 0, 0),
+ EXT_CONTROL_REG_BITS(LDO7, 0, 5),
+ EXT_CONTROL_REG_BITS(LDO8, 0, 4),
+};
+
struct tps65910_reg {
struct regulator_desc *desc;
struct tps65910 *mfd;
int num_regulators;
int mode;
int (*get_ctrl_reg)(int);
+ unsigned int *ext_sleep_control;
+ unsigned int board_ext_control[TPS65910_NUM_REGS];
};
static inline int tps65910_read(struct tps65910_reg *pmic, u8 reg)
return -EINVAL;
}
- voltage = pmic->info[id]->table[value] * 1000;
+ voltage = pmic->info[id]->voltage_table[value] * 1000;
return voltage;
}
step_mv = 100;
break;
case TPS65910_REG_VIO:
- return pmic->info[id]->table[value] * 1000;
- break;
+ value &= LDO_SEL_MASK;
+ value >>= LDO_SEL_SHIFT;
+ return pmic->info[id]->voltage_table[value] * 1000;
default:
return -EINVAL;
}
case TPS65911_REG_LDO6:
case TPS65911_REG_LDO7:
case TPS65911_REG_LDO8:
- case TPS65910_REG_VIO:
return tps65910_modify_bits(pmic, reg,
(selector << LDO_SEL_SHIFT), LDO3_SEL_MASK);
+ case TPS65910_REG_VIO:
+ return tps65910_modify_bits(pmic, reg,
+ (selector << LDO_SEL_SHIFT), LDO_SEL_MASK);
}
return -EINVAL;
if (id < TPS65910_REG_VIO || id > TPS65910_REG_VMMC)
return -EINVAL;
- if (selector >= pmic->info[id]->table_len)
+ if (selector >= pmic->info[id]->n_voltages)
return -EINVAL;
else
- voltage = pmic->info[id]->table[selector] * 1000;
+ voltage = pmic->info[id]->voltage_table[selector] * 1000;
return voltage;
}
step_mv = 100;
break;
case TPS65910_REG_VIO:
- return pmic->info[id]->table[selector] * 1000;
+ return pmic->info[id]->voltage_table[selector] * 1000;
default:
return -EINVAL;
}
.list_voltage = tps65911_list_voltage,
};
+static int tps65910_set_ext_sleep_config(struct tps65910_reg *pmic,
+ int id, int ext_sleep_config)
+{
+ struct tps65910 *mfd = pmic->mfd;
+ u8 regoffs = (pmic->ext_sleep_control[id] >> 8) & 0xFF;
+ u8 bit_pos = (1 << pmic->ext_sleep_control[id] & 0xFF);
+ int ret;
+
+ /*
+ * Regulator can not be control from multiple external input EN1, EN2
+ * and EN3 together.
+ */
+ if (ext_sleep_config & EXT_SLEEP_CONTROL) {
+ int en_count;
+ en_count = ((ext_sleep_config &
+ TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1) != 0);
+ en_count += ((ext_sleep_config &
+ TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2) != 0);
+ en_count += ((ext_sleep_config &
+ TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3) != 0);
+ en_count += ((ext_sleep_config &
+ TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP) != 0);
+ if (en_count > 1) {
+ dev_err(mfd->dev,
+ "External sleep control flag is not proper\n");
+ return -EINVAL;
+ }
+ }
+
+ pmic->board_ext_control[id] = ext_sleep_config;
+
+ /* External EN1 control */
+ if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1)
+ ret = tps65910_set_bits(mfd,
+ TPS65910_EN1_LDO_ASS + regoffs, bit_pos);
+ else
+ ret = tps65910_clear_bits(mfd,
+ TPS65910_EN1_LDO_ASS + regoffs, bit_pos);
+ if (ret < 0) {
+ dev_err(mfd->dev,
+ "Error in configuring external control EN1\n");
+ return ret;
+ }
+
+ /* External EN2 control */
+ if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2)
+ ret = tps65910_set_bits(mfd,
+ TPS65910_EN2_LDO_ASS + regoffs, bit_pos);
+ else
+ ret = tps65910_clear_bits(mfd,
+ TPS65910_EN2_LDO_ASS + regoffs, bit_pos);
+ if (ret < 0) {
+ dev_err(mfd->dev,
+ "Error in configuring external control EN2\n");
+ return ret;
+ }
+
+ /* External EN3 control for TPS65910 LDO only */
+ if ((tps65910_chip_id(mfd) == TPS65910) &&
+ (id >= TPS65910_REG_VDIG1)) {
+ if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3)
+ ret = tps65910_set_bits(mfd,
+ TPS65910_EN3_LDO_ASS + regoffs, bit_pos);
+ else
+ ret = tps65910_clear_bits(mfd,
+ TPS65910_EN3_LDO_ASS + regoffs, bit_pos);
+ if (ret < 0) {
+ dev_err(mfd->dev,
+ "Error in configuring external control EN3\n");
+ return ret;
+ }
+ }
+
+ /* Return if no external control is selected */
+ if (!(ext_sleep_config & EXT_SLEEP_CONTROL)) {
+ /* Clear all sleep controls */
+ ret = tps65910_clear_bits(mfd,
+ TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos);
+ if (!ret)
+ ret = tps65910_clear_bits(mfd,
+ TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
+ if (ret < 0)
+ dev_err(mfd->dev,
+ "Error in configuring SLEEP register\n");
+ return ret;
+ }
+
+ /*
+ * For regulator that has separate operational and sleep register make
+ * sure that operational is used and clear sleep register to turn
+ * regulator off when external control is inactive
+ */
+ if ((id == TPS65910_REG_VDD1) ||
+ (id == TPS65910_REG_VDD2) ||
+ ((id == TPS65911_REG_VDDCTRL) &&
+ (tps65910_chip_id(mfd) == TPS65911))) {
+ int op_reg_add = pmic->get_ctrl_reg(id) + 1;
+ int sr_reg_add = pmic->get_ctrl_reg(id) + 2;
+ int opvsel = tps65910_reg_read(pmic, op_reg_add);
+ int srvsel = tps65910_reg_read(pmic, sr_reg_add);
+ if (opvsel & VDD1_OP_CMD_MASK) {
+ u8 reg_val = srvsel & VDD1_OP_SEL_MASK;
+ ret = tps65910_reg_write(pmic, op_reg_add, reg_val);
+ if (ret < 0) {
+ dev_err(mfd->dev,
+ "Error in configuring op register\n");
+ return ret;
+ }
+ }
+ ret = tps65910_reg_write(pmic, sr_reg_add, 0);
+ if (ret < 0) {
+ dev_err(mfd->dev, "Error in settting sr register\n");
+ return ret;
+ }
+ }
+
+ ret = tps65910_clear_bits(mfd,
+ TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos);
+ if (!ret) {
+ if (ext_sleep_config & TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP)
+ ret = tps65910_set_bits(mfd,
+ TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
+ else
+ ret = tps65910_clear_bits(mfd,
+ TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
+ }
+ if (ret < 0)
+ dev_err(mfd->dev,
+ "Error in configuring SLEEP register\n");
+
+ return ret;
+}
+
static __devinit int tps65910_probe(struct platform_device *pdev)
{
struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent);
if (!pmic_plat_data)
return -EINVAL;
- reg_data = pmic_plat_data->tps65910_pmic_init_data;
-
pmic = kzalloc(sizeof(*pmic), GFP_KERNEL);
if (!pmic)
return -ENOMEM;
case TPS65910:
pmic->get_ctrl_reg = &tps65910_get_ctrl_register;
pmic->num_regulators = ARRAY_SIZE(tps65910_regs);
+ pmic->ext_sleep_control = tps65910_ext_sleep_control;
info = tps65910_regs;
break;
case TPS65911:
pmic->get_ctrl_reg = &tps65911_get_ctrl_register;
pmic->num_regulators = ARRAY_SIZE(tps65911_regs);
+ pmic->ext_sleep_control = tps65911_ext_sleep_control;
info = tps65911_regs;
break;
default:
goto err_free_info;
}
- for (i = 0; i < pmic->num_regulators; i++, info++, reg_data++) {
+ for (i = 0; i < pmic->num_regulators && i < TPS65910_NUM_REGS;
+ i++, info++) {
+
+ reg_data = pmic_plat_data->tps65910_pmic_init_data[i];
+
+ /* Regulator API handles empty constraints but not NULL
+ * constraints */
+ if (!reg_data)
+ continue;
+
/* Register the regulators */
pmic->info[i] = info;
pmic->desc[i].name = info->name;
pmic->desc[i].id = i;
- pmic->desc[i].n_voltages = info->table_len;
+ pmic->desc[i].n_voltages = info->n_voltages;
if (i == TPS65910_REG_VDD1 || i == TPS65910_REG_VDD2) {
pmic->desc[i].ops = &tps65910_ops_dcdc;
pmic->desc[i].ops = &tps65911_ops;
}
+ err = tps65910_set_ext_sleep_config(pmic, i,
+ pmic_plat_data->regulator_ext_sleep_control[i]);
+ /*
+ * Failing on regulator for configuring externally control
+ * is not a serious issue, just throw warning.
+ */
+ if (err < 0)
+ dev_warn(tps65910->dev,
+ "Failed to initialise ext control config\n");
+
pmic->desc[i].type = REGULATOR_VOLTAGE;
pmic->desc[i].owner = THIS_MODULE;
rdev = regulator_register(&pmic->desc[i],
- tps65910->dev, reg_data, pmic);
+ tps65910->dev, reg_data, pmic, NULL);
if (IS_ERR(rdev)) {
dev_err(tps65910->dev,
"failed to register %s regulator\n",
return 0;
}
+static void tps65910_shutdown(struct platform_device *pdev)
+{
+ struct tps65910_reg *pmic = platform_get_drvdata(pdev);
+ int i;
+
+ /*
+ * Before bootloader jumps to kernel, it makes sure that required
+ * external control signals are in desired state so that given rails
+ * can be configure accordingly.
+ * If rails are configured to be controlled from external control
+ * then before shutting down/rebooting the system, the external
+ * control configuration need to be remove from the rails so that
+ * its output will be available as per register programming even
+ * if external controls are removed. This is require when the POR
+ * value of the control signals are not in active state and before
+ * bootloader initializes it, the system requires the rail output
+ * to be active for booting.
+ */
+ for (i = 0; i < pmic->num_regulators; i++) {
+ int err;
+ if (!pmic->rdev[i])
+ continue;
+
+ err = tps65910_set_ext_sleep_config(pmic, i, 0);
+ if (err < 0)
+ dev_err(&pdev->dev,
+ "Error in clearing external control\n");
+ }
+}
+
static struct platform_driver tps65910_driver = {
.driver = {
.name = "tps65910-pmic",
},
.probe = tps65910_probe,
.remove = __devexit_p(tps65910_remove),
+ .shutdown = tps65910_shutdown,
};
static int __init tps65910_init(void)
module_exit(tps65910_cleanup);
MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
-MODULE_DESCRIPTION("TPS6507x voltage regulator driver");
+MODULE_DESCRIPTION("TPS65910/TPS65911 voltage regulator driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:tps65910-pmic");
projects / mirror_ubuntu-hirsute-kernel.git / blobdiff