diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/regulator/Makefile | 2 | ||||
| -rw-r--r-- | drivers/regulator/twl-regulator.c | 600 | ||||
| -rw-r--r-- | drivers/regulator/twl6030-regulator.c | 805 |
3 files changed, 811 insertions, 596 deletions
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index 2142a5d3fc08..14294692beb9 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -104,7 +104,7 @@ obj-$(CONFIG_REGULATOR_TPS6586X) += tps6586x-regulator.o obj-$(CONFIG_REGULATOR_TPS65910) += tps65910-regulator.o obj-$(CONFIG_REGULATOR_TPS65912) += tps65912-regulator.o obj-$(CONFIG_REGULATOR_TPS80031) += tps80031-regulator.o -obj-$(CONFIG_REGULATOR_TWL4030) += twl-regulator.o +obj-$(CONFIG_REGULATOR_TWL4030) += twl-regulator.o twl6030-regulator.o obj-$(CONFIG_REGULATOR_VEXPRESS) += vexpress-regulator.o obj-$(CONFIG_REGULATOR_WM831X) += wm831x-dcdc.o obj-$(CONFIG_REGULATOR_WM831X) += wm831x-isink.o diff --git a/drivers/regulator/twl-regulator.c b/drivers/regulator/twl-regulator.c index 3f9f53d98ef0..d572b8a583e4 100644 --- a/drivers/regulator/twl-regulator.c +++ b/drivers/regulator/twl-regulator.c @@ -24,7 +24,7 @@ #include <linux/delay.h> /* - * The TWL4030/TW5030/TPS659x0/TWL6030 family chips include power management, a + * The TWL4030/TW5030/TPS659x0 family chips include power management, a * USB OTG transceiver, an RTC, ADC, PWM, and lots more. Some versions * include an audio codec, battery charger, and more voltage regulators. * These chips are often used in OMAP-based systems. @@ -81,33 +81,6 @@ struct twlreg_info { #define VREG_STATE 2 #define VREG_VOLTAGE 3 #define VREG_VOLTAGE_SMPS 4 -/* TWL6030 Misc register offsets */ -#define VREG_BC_ALL 1 -#define VREG_BC_REF 2 -#define VREG_BC_PROC 3 -#define VREG_BC_CLK_RST 4 - -/* TWL6030 LDO register values for CFG_STATE */ -#define TWL6030_CFG_STATE_OFF 0x00 -#define TWL6030_CFG_STATE_ON 0x01 -#define TWL6030_CFG_STATE_OFF2 0x02 -#define TWL6030_CFG_STATE_SLEEP 0x03 -#define TWL6030_CFG_STATE_GRP_SHIFT 5 -#define TWL6030_CFG_STATE_APP_SHIFT 2 -#define TWL6030_CFG_STATE_APP_MASK (0x03 << TWL6030_CFG_STATE_APP_SHIFT) -#define TWL6030_CFG_STATE_APP(v) (((v) & TWL6030_CFG_STATE_APP_MASK) >>\ - TWL6030_CFG_STATE_APP_SHIFT) - -/* Flags for SMPS Voltage reading */ -#define SMPS_OFFSET_EN BIT(0) -#define SMPS_EXTENDED_EN BIT(1) - -/* twl6032 SMPS EPROM values */ -#define TWL6030_SMPS_OFFSET 0xB0 -#define TWL6030_SMPS_MULT 0xB3 -#define SMPS_MULTOFFSET_SMPS4 BIT(0) -#define SMPS_MULTOFFSET_VIO BIT(1) -#define SMPS_MULTOFFSET_SMPS3 BIT(6) static inline int twlreg_read(struct twlreg_info *info, unsigned slave_subgp, unsigned offset) @@ -161,26 +134,6 @@ static int twl4030reg_is_enabled(struct regulator_dev *rdev) return state & P1_GRP_4030; } -static int twl6030reg_is_enabled(struct regulator_dev *rdev) -{ - struct twlreg_info *info = rdev_get_drvdata(rdev); - int grp = 0, val; - - if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) { - grp = twlreg_grp(rdev); - if (grp < 0) - return grp; - grp &= P1_GRP_6030; - } else { - grp = 1; - } - - val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE); - val = TWL6030_CFG_STATE_APP(val); - - return grp && (val == TWL6030_CFG_STATE_ON); -} - #define PB_I2C_BUSY BIT(0) #define PB_I2C_BWEN BIT(1) @@ -266,23 +219,6 @@ static int twl4030reg_enable(struct regulator_dev *rdev) return ret; } -static int twl6030reg_enable(struct regulator_dev *rdev) -{ - struct twlreg_info *info = rdev_get_drvdata(rdev); - int grp = 0; - int ret; - - if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) - grp = twlreg_grp(rdev); - if (grp < 0) - return grp; - - ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, - grp << TWL6030_CFG_STATE_GRP_SHIFT | - TWL6030_CFG_STATE_ON); - return ret; -} - static int twl4030reg_disable(struct regulator_dev *rdev) { struct twlreg_info *info = rdev_get_drvdata(rdev); @@ -300,23 +236,6 @@ static int twl4030reg_disable(struct regulator_dev *rdev) return ret; } -static int twl6030reg_disable(struct regulator_dev *rdev) -{ - struct twlreg_info *info = rdev_get_drvdata(rdev); - int grp = 0; - int ret; - - if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) - grp = P1_GRP_6030 | P2_GRP_6030 | P3_GRP_6030; - - /* For 6030, set the off state for all grps enabled */ - ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, - (grp) << TWL6030_CFG_STATE_GRP_SHIFT | - TWL6030_CFG_STATE_OFF); - - return ret; -} - static int twl4030reg_get_status(struct regulator_dev *rdev) { int state = twlreg_grp(rdev); @@ -333,33 +252,6 @@ static int twl4030reg_get_status(struct regulator_dev *rdev) : REGULATOR_STATUS_STANDBY; } -static int twl6030reg_get_status(struct regulator_dev *rdev) -{ - struct twlreg_info *info = rdev_get_drvdata(rdev); - int val; - - val = twlreg_grp(rdev); - if (val < 0) - return val; - - val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE); - - switch (TWL6030_CFG_STATE_APP(val)) { - case TWL6030_CFG_STATE_ON: - return REGULATOR_STATUS_NORMAL; - - case TWL6030_CFG_STATE_SLEEP: - return REGULATOR_STATUS_STANDBY; - - case TWL6030_CFG_STATE_OFF: - case TWL6030_CFG_STATE_OFF2: - default: - break; - } - - return REGULATOR_STATUS_OFF; -} - static int twl4030reg_set_mode(struct regulator_dev *rdev, unsigned mode) { struct twlreg_info *info = rdev_get_drvdata(rdev); @@ -392,36 +284,6 @@ static inline unsigned int twl4030reg_map_mode(unsigned int mode) } } -static int twl6030reg_set_mode(struct regulator_dev *rdev, unsigned mode) -{ - struct twlreg_info *info = rdev_get_drvdata(rdev); - int grp = 0; - int val; - - if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) - grp = twlreg_grp(rdev); - - if (grp < 0) - return grp; - - /* Compose the state register settings */ - val = grp << TWL6030_CFG_STATE_GRP_SHIFT; - /* We can only set the mode through state machine commands... */ - switch (mode) { - case REGULATOR_MODE_NORMAL: - val |= TWL6030_CFG_STATE_ON; - break; - case REGULATOR_MODE_STANDBY: - val |= TWL6030_CFG_STATE_SLEEP; - break; - - default: - return -EINVAL; - } - - return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, val); -} - /*----------------------------------------------------------------------*/ /* @@ -579,75 +441,6 @@ static struct regulator_ops twl4030smps_ops = { .get_voltage = twl4030smps_get_voltage, }; -static int twl6030coresmps_set_voltage(struct regulator_dev *rdev, int min_uV, - int max_uV, unsigned *selector) -{ - return -ENODEV; -} - -static int twl6030coresmps_get_voltage(struct regulator_dev *rdev) -{ - return -ENODEV; -} - -static struct regulator_ops twl6030coresmps_ops = { - .set_voltage = twl6030coresmps_set_voltage, - .get_voltage = twl6030coresmps_get_voltage, -}; - -static int twl6030ldo_list_voltage(struct regulator_dev *rdev, unsigned sel) -{ - struct twlreg_info *info = rdev_get_drvdata(rdev); - - switch (sel) { - case 0: - return 0; - case 1 ... 24: - /* Linear mapping from 00000001 to 00011000: - * Absolute voltage value = 1.0 V + 0.1 V × (sel – 00000001) - */ - return (info->min_mV + 100 * (sel - 1)) * 1000; - case 25 ... 30: - return -EINVAL; - case 31: - return 2750000; - default: - return -EINVAL; - } -} - -static int -twl6030ldo_set_voltage_sel(struct regulator_dev *rdev, unsigned selector) -{ - struct twlreg_info *info = rdev_get_drvdata(rdev); - - return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE, - selector); -} - -static int twl6030ldo_get_voltage_sel(struct regulator_dev *rdev) -{ - struct twlreg_info *info = rdev_get_drvdata(rdev); - int vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE); - - return vsel; -} - -static struct regulator_ops twl6030ldo_ops = { - .list_voltage = twl6030ldo_list_voltage, - - .set_voltage_sel = twl6030ldo_set_voltage_sel, - .get_voltage_sel = twl6030ldo_get_voltage_sel, - - .enable = twl6030reg_enable, - .disable = twl6030reg_disable, - .is_enabled = twl6030reg_is_enabled, - - .set_mode = twl6030reg_set_mode, - - .get_status = twl6030reg_get_status, -}; - /*----------------------------------------------------------------------*/ static struct regulator_ops twl4030fixed_ops = { @@ -662,215 +455,6 @@ static struct regulator_ops twl4030fixed_ops = { .get_status = twl4030reg_get_status, }; -static struct regulator_ops twl6030fixed_ops = { - .list_voltage = regulator_list_voltage_linear, - - .enable = twl6030reg_enable, - .disable = twl6030reg_disable, - .is_enabled = twl6030reg_is_enabled, - - .set_mode = twl6030reg_set_mode, - - .get_status = twl6030reg_get_status, -}; - -/* - * SMPS status and control - */ - -static int twl6030smps_list_voltage(struct regulator_dev *rdev, unsigned index) -{ - struct twlreg_info *info = rdev_get_drvdata(rdev); - - int voltage = 0; - - switch (info->flags) { - case SMPS_OFFSET_EN: - voltage = 100000; - /* fall through */ - case 0: - switch (index) { - case 0: - voltage = 0; - break; - case 58: - voltage = 1350 * 1000; - break; - case 59: - voltage = 1500 * 1000; - break; - case 60: - voltage = 1800 * 1000; - break; - case 61: - voltage = 1900 * 1000; - break; - case 62: - voltage = 2100 * 1000; - break; - default: - voltage += (600000 + (12500 * (index - 1))); - } - break; - case SMPS_EXTENDED_EN: - switch (index) { - case 0: - voltage = 0; - break; - case 58: - voltage = 2084 * 1000; - break; - case 59: - voltage = 2315 * 1000; - break; - case 60: - voltage = 2778 * 1000; - break; - case 61: - voltage = 2932 * 1000; - break; - case 62: - voltage = 3241 * 1000; - break; - default: - voltage = (1852000 + (38600 * (index - 1))); - } - break; - case SMPS_OFFSET_EN | SMPS_EXTENDED_EN: - switch (index) { - case 0: - voltage = 0; - break; - case 58: - voltage = 4167 * 1000; - break; - case 59: - voltage = 2315 * 1000; - break; - case 60: - voltage = 2778 * 1000; - break; - case 61: - voltage = 2932 * 1000; - break; - case 62: - voltage = 3241 * 1000; - break; - default: - voltage = (2161000 + (38600 * (index - 1))); - } - break; - } - - return voltage; -} - -static int twl6030smps_map_voltage(struct regulator_dev *rdev, int min_uV, - int max_uV) -{ - struct twlreg_info *info = rdev_get_drvdata(rdev); - int vsel = 0; - - switch (info->flags) { - case 0: - if (min_uV == 0) - vsel = 0; - else if ((min_uV >= 600000) && (min_uV <= 1300000)) { - vsel = DIV_ROUND_UP(min_uV - 600000, 12500); - vsel++; - } - /* Values 1..57 for vsel are linear and can be calculated - * values 58..62 are non linear. - */ - else if ((min_uV > 1900000) && (min_uV <= 2100000)) - vsel = 62; - else if ((min_uV > 1800000) && (min_uV <= 1900000)) - vsel = 61; - else if ((min_uV > 1500000) && (min_uV <= 1800000)) - vsel = 60; - else if ((min_uV > 1350000) && (min_uV <= 1500000)) - vsel = 59; - else if ((min_uV > 1300000) && (min_uV <= 1350000)) - vsel = 58; - else - return -EINVAL; - break; - case SMPS_OFFSET_EN: - if (min_uV == 0) - vsel = 0; - else if ((min_uV >= 700000) && (min_uV <= 1420000)) { - vsel = DIV_ROUND_UP(min_uV - 700000, 12500); - vsel++; - } - /* Values 1..57 for vsel are linear and can be calculated - * values 58..62 are non linear. - */ - else if ((min_uV > 1900000) && (min_uV <= 2100000)) - vsel = 62; - else if ((min_uV > 1800000) && (min_uV <= 1900000)) - vsel = 61; - else if ((min_uV > 1350000) && (min_uV <= 1800000)) - vsel = 60; - else if ((min_uV > 1350000) && (min_uV <= 1500000)) - vsel = 59; - else if ((min_uV > 1300000) && (min_uV <= 1350000)) - vsel = 58; - else - return -EINVAL; - break; - case SMPS_EXTENDED_EN: - if (min_uV == 0) { - vsel = 0; - } else if ((min_uV >= 1852000) && (max_uV <= 4013600)) { - vsel = DIV_ROUND_UP(min_uV - 1852000, 38600); - vsel++; - } - break; - case SMPS_OFFSET_EN|SMPS_EXTENDED_EN: - if (min_uV == 0) { - vsel = 0; - } else if ((min_uV >= 2161000) && (min_uV <= 4321000)) { - vsel = DIV_ROUND_UP(min_uV - 2161000, 38600); - vsel++; - } - break; - } - - return vsel; -} - -static int twl6030smps_set_voltage_sel(struct regulator_dev *rdev, - unsigned int selector) -{ - struct twlreg_info *info = rdev_get_drvdata(rdev); - - return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS, - selector); -} - -static int twl6030smps_get_voltage_sel(struct regulator_dev *rdev) -{ - struct twlreg_info *info = rdev_get_drvdata(rdev); - - return twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS); -} - -static struct regulator_ops twlsmps_ops = { - .list_voltage = twl6030smps_list_voltage, - .map_voltage = twl6030smps_map_voltage, - - .set_voltage_sel = twl6030smps_set_voltage_sel, - .get_voltage_sel = twl6030smps_get_voltage_sel, - - .enable = twl6030reg_enable, - .disable = twl6030reg_disable, - .is_enabled = twl6030reg_is_enabled, - - .set_mode = twl6030reg_set_mode, - - .get_status = twl6030reg_get_status, -}; - /*----------------------------------------------------------------------*/ #define TWL4030_ADJUSTABLE_LDO(label, offset, num, turnon_delay, remap_conf) \ @@ -908,66 +492,6 @@ static const struct twlreg_info TWL4030_INFO_##label = { \ }, \ } -#define TWL6030_ADJUSTABLE_SMPS(label) \ -static const struct twlreg_info TWL6030_INFO_##label = { \ - .desc = { \ - .name = #label, \ - .id = TWL6030_REG_##label, \ - .ops = &twl6030coresmps_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - }, \ - } - -#define TWL6030_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) \ -static const struct twlreg_info TWL6030_INFO_##label = { \ - .base = offset, \ - .min_mV = min_mVolts, \ - .max_mV = max_mVolts, \ - .desc = { \ - .name = #label, \ - .id = TWL6030_REG_##label, \ - .n_voltages = 32, \ - .ops = &twl6030ldo_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - }, \ - } - -#define TWL6032_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) \ -static const struct twlreg_info TWL6032_INFO_##label = { \ - .base = offset, \ - .min_mV = min_mVolts, \ - .max_mV = max_mVolts, \ - .desc = { \ - .name = #label, \ - .id = TWL6032_REG_##label, \ - .n_voltages = 32, \ - .ops = &twl6030ldo_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - }, \ - } - -#define TWL6030_FIXED_LDO(label, offset, mVolts, turnon_delay) \ -static const struct twlreg_info TWLFIXED_INFO_##label = { \ - .base = offset, \ - .id = 0, \ - .min_mV = mVolts, \ - .remap = 0, \ - .desc = { \ - .name = #label, \ - .id = TWL6030##_REG_##label, \ - .n_voltages = 1, \ - .ops = &twl6030fixed_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .min_uV = mVolts * 1000, \ - .enable_time = turnon_delay, \ - .of_map_mode = NULL, \ - }, \ - } - #define TWL4030_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \ remap_conf) \ static const struct twlreg_info TWLFIXED_INFO_##label = { \ @@ -988,21 +512,6 @@ static const struct twlreg_info TWLFIXED_INFO_##label = { \ }, \ } -#define TWL6032_ADJUSTABLE_SMPS(label, offset) \ -static const struct twlreg_info TWLSMPS_INFO_##label = { \ - .base = offset, \ - .min_mV = 600, \ - .max_mV = 2100, \ - .desc = { \ - .name = #label, \ - .id = TWL6032_REG_##label, \ - .n_voltages = 63, \ - .ops = &twlsmps_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - }, \ - } - /* * We list regulators here if systems need some level of * software control over them after boot. @@ -1023,60 +532,11 @@ TWL4030_ADJUSTABLE_LDO(VIO, 0x4b, 14, 1000, 0x08); TWL4030_ADJUSTABLE_SMPS(VDD1, 0x55, 15, 1000, 0x08); TWL4030_ADJUSTABLE_SMPS(VDD2, 0x63, 16, 1000, 0x08); /* VUSBCP is managed *only* by the USB subchip */ -/* 6030 REG with base as PMC Slave Misc : 0x0030 */ -/* Turnon-delay and remap configuration values for 6030 are not - verified since the specification is not public */ -TWL6030_ADJUSTABLE_SMPS(VDD1); -TWL6030_ADJUSTABLE_SMPS(VDD2); -TWL6030_ADJUSTABLE_SMPS(VDD3); -TWL6030_ADJUSTABLE_LDO(VAUX1_6030, 0x54, 1000, 3300); -TWL6030_ADJUSTABLE_LDO(VAUX2_6030, 0x58, 1000, 3300); -TWL6030_ADJUSTABLE_LDO(VAUX3_6030, 0x5c, 1000, 3300); -TWL6030_ADJUSTABLE_LDO(VMMC, 0x68, 1000, 3300); -TWL6030_ADJUSTABLE_LDO(VPP, 0x6c, 1000, 3300); -TWL6030_ADJUSTABLE_LDO(VUSIM, 0x74, 1000, 3300); -/* 6025 are renamed compared to 6030 versions */ -TWL6032_ADJUSTABLE_LDO(LDO2, 0x54, 1000, 3300); -TWL6032_ADJUSTABLE_LDO(LDO4, 0x58, 1000, 3300); -TWL6032_ADJUSTABLE_LDO(LDO3, 0x5c, 1000, 3300); -TWL6032_ADJUSTABLE_LDO(LDO5, 0x68, 1000, 3300); -TWL6032_ADJUSTABLE_LDO(LDO1, 0x6c, 1000, 3300); -TWL6032_ADJUSTABLE_LDO(LDO7, 0x74, 1000, 3300); -TWL6032_ADJUSTABLE_LDO(LDO6, 0x60, 1000, 3300); -TWL6032_ADJUSTABLE_LDO(LDOLN, 0x64, 1000, 3300); -TWL6032_ADJUSTABLE_LDO(LDOUSB, 0x70, 1000, 3300); TWL4030_FIXED_LDO(VINTANA1, 0x3f, 1500, 11, 100, 0x08); TWL4030_FIXED_LDO(VINTDIG, 0x47, 1500, 13, 100, 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); -TWL6030_FIXED_LDO(VANA, 0x50, 2100, 0); -TWL6030_FIXED_LDO(VCXIO, 0x60, 1800, 0); -TWL6030_FIXED_LDO(VDAC, 0x64, 1800, 0); -TWL6030_FIXED_LDO(VUSB, 0x70, 3300, 0); -TWL6030_FIXED_LDO(V1V8, 0x16, 1800, 0); -TWL6030_FIXED_LDO(V2V1, 0x1c, 2100, 0); -TWL6032_ADJUSTABLE_SMPS(SMPS3, 0x34); -TWL6032_ADJUSTABLE_SMPS(SMPS4, 0x10); -TWL6032_ADJUSTABLE_SMPS(VIO, 0x16); - -static u8 twl_get_smps_offset(void) -{ - u8 value; - - twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value, - TWL6030_SMPS_OFFSET); - return value; -} - -static u8 twl_get_smps_mult(void) -{ - u8 value; - - twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value, - TWL6030_SMPS_MULT); - return value; -} #define TWL_OF_MATCH(comp, family, label) \ { \ @@ -1106,38 +566,11 @@ static const struct of_device_id twl_of_match[] = { TWL4030_OF_MATCH("ti,twl4030-vio", VIO), TWL4030_OF_MATCH("ti,twl4030-vdd1", VDD1), TWL4030_OF_MATCH("ti,twl4030-vdd2", VDD2), - TWL6030_OF_MATCH("ti,twl6030-vdd1", VDD1), - TWL6030_OF_MATCH("ti,twl6030-vdd2", VDD2), - TWL6030_OF_MATCH("ti,twl6030-vdd3", VDD3), - TWL6030_OF_MATCH("ti,twl6030-vaux1", VAUX1_6030), - TWL6030_OF_MATCH("ti,twl6030-vaux2", VAUX2_6030), - TWL6030_OF_MATCH("ti,twl6030-vaux3", VAUX3_6030), - TWL6030_OF_MATCH("ti,twl6030-vmmc", VMMC), - TWL6030_OF_MATCH("ti,twl6030-vpp", VPP), - TWL6030_OF_MATCH("ti,twl6030-vusim", VUSIM), - TWL6032_OF_MATCH("ti,twl6032-ldo2", LDO2), - TWL6032_OF_MATCH("ti,twl6032-ldo4", LDO4), - TWL6032_OF_MATCH("ti,twl6032-ldo3", LDO3), - TWL6032_OF_MATCH("ti,twl6032-ldo5", LDO5), - TWL6032_OF_MATCH("ti,twl6032-ldo1", LDO1), - TWL6032_OF_MATCH("ti,twl6032-ldo7", LDO7), - TWL6032_OF_MATCH("ti,twl6032-ldo6", LDO6), - TWL6032_OF_MATCH("ti,twl6032-ldoln", LDOLN), - TWL6032_OF_MATCH("ti,twl6032-ldousb", LDOUSB), TWLFIXED_OF_MATCH("ti,twl4030-vintana1", VINTANA1), TWLFIXED_OF_MATCH("ti,twl4030-vintdig", VINTDIG), TWLFIXED_OF_MATCH("ti,twl4030-vusb1v5", VUSB1V5), TWLFIXED_OF_MATCH("ti,twl4030-vusb1v8", VUSB1V8), TWLFIXED_OF_MATCH("ti,twl4030-vusb3v1", VUSB3V1), - TWLFIXED_OF_MATCH("ti,twl6030-vana", VANA), - TWLFIXED_OF_MATCH("ti,twl6030-vcxio", VCXIO), - TWLFIXED_OF_MATCH("ti,twl6030-vdac", VDAC), - TWLFIXED_OF_MATCH("ti,twl6030-vusb", VUSB), - TWLFIXED_OF_MATCH("ti,twl6030-v1v8", V1V8), - TWLFIXED_OF_MATCH("ti,twl6030-v2v1", V2V1), - TWLSMPS_OF_MATCH("ti,twl6032-smps3", SMPS3), - TWLSMPS_OF_MATCH("ti,twl6032-smps4", SMPS4), - TWLSMPS_OF_MATCH("ti,twl6032-vio", VIO), {}, }; MODULE_DEVICE_TABLE(of, twl_of_match); @@ -1193,27 +626,6 @@ static int twlreg_probe(struct platform_device *pdev) break; } - switch (id) { - case TWL6032_REG_SMPS3: - if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS3) - info->flags |= SMPS_EXTENDED_EN; - if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS3) - info->flags |= SMPS_OFFSET_EN; - break; - case TWL6032_REG_SMPS4: - if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS4) - info->flags |= SMPS_EXTENDED_EN; - if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS4) - info->flags |= SMPS_OFFSET_EN; - break; - case TWL6032_REG_VIO: - if (twl_get_smps_mult() & SMPS_MULTOFFSET_VIO) - info->flags |= SMPS_EXTENDED_EN; - if (twl_get_smps_offset() & SMPS_MULTOFFSET_VIO) - info->flags |= SMPS_OFFSET_EN; - break; - } - config.dev = &pdev->dev; config.init_data = initdata; config.driver_data = info; @@ -1227,9 +639,7 @@ static int twlreg_probe(struct platform_device *pdev) } platform_set_drvdata(pdev, rdev); - if (twl_class_is_4030()) - twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_REMAP, - info->remap); + twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_REMAP, info->remap); /* NOTE: many regulators support short-circuit IRQs (presentable * as REGULATOR_OVER_CURRENT notifications?) configured via: @@ -1242,7 +652,7 @@ static int twlreg_probe(struct platform_device *pdev) return 0; } -MODULE_ALIAS("platform:twl_reg"); +MODULE_ALIAS("platform:twl4030_reg"); static struct platform_driver twlreg_driver = { .probe = twlreg_probe, @@ -1250,7 +660,7 @@ static struct platform_driver twlreg_driver = { * "twl_regulator.12" (and friends) to "twl_regulator.1". */ .driver = { - .name = "twl_reg", + .name = "twl4030_reg", .of_match_table = of_match_ptr(twl_of_match), }, }; @@ -1267,5 +677,5 @@ static void __exit twlreg_exit(void) } module_exit(twlreg_exit) -MODULE_DESCRIPTION("TWL regulator driver"); +MODULE_DESCRIPTION("TWL4030 regulator driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/regulator/twl6030-regulator.c b/drivers/regulator/twl6030-regulator.c new file mode 100644 index 000000000000..a446137f57bb --- /dev/null +++ b/drivers/regulator/twl6030-regulator.c @@ -0,0 +1,805 @@ +/* + * Split TWL6030 logic from twl-regulator.c: + * Copyright (C) 2008 David Brownell + * + * Copyright (C) 2016 Nicolae Rosia <nicolae.rosia@gmail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/module.h> +#include <linux/string.h> +#include <linux/slab.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/platform_device.h> +#include <linux/of.h> +#include <linux/of_device.h> +#include <linux/regulator/driver.h> +#include <linux/regulator/machine.h> +#include <linux/regulator/of_regulator.h> +#include <linux/i2c/twl.h> +#include <linux/delay.h> + +struct twlreg_info { + /* start of regulator's PM_RECEIVER control register bank */ + u8 base; + + /* twl resource ID, for resource control state machine */ + u8 id; + + /* voltage in mV = table[VSEL]; table_len must be a power-of-two */ + u8 table_len; + const u16 *table; + + /* State REMAP default configuration */ + u8 remap; + + /* chip constraints on regulator behavior */ + u16 min_mV; + u16 max_mV; + + u8 flags; + + /* used by regulator core */ + struct regulator_desc desc; + + /* chip specific features */ + unsigned long features; + + /* data passed from board for external get/set voltage */ + void *data; +}; + + +/* LDO control registers ... offset is from the base of its register bank. + * The first three registers of all power resource banks help hardware to + * manage the various resource groups. + */ +/* Common offset in TWL4030/6030 */ +#define VREG_GRP 0 +/* TWL6030 register offsets */ +#define VREG_TRANS 1 +#define VREG_STATE 2 +#define VREG_VOLTAGE 3 +#define VREG_VOLTAGE_SMPS 4 +/* TWL6030 Misc register offsets */ +#define VREG_BC_ALL 1 +#define VREG_BC_REF 2 +#define VREG_BC_PROC 3 +#define VREG_BC_CLK_RST 4 + +/* TWL6030 LDO register values for CFG_STATE */ +#define TWL6030_CFG_STATE_OFF 0x00 +#define TWL6030_CFG_STATE_ON 0x01 +#define TWL6030_CFG_STATE_OFF2 0x02 +#define TWL6030_CFG_STATE_SLEEP 0x03 +#define TWL6030_CFG_STATE_GRP_SHIFT 5 +#define TWL6030_CFG_STATE_APP_SHIFT 2 +#define TWL6030_CFG_STATE_APP_MASK (0x03 << TWL6030_CFG_STATE_APP_SHIFT) +#define TWL6030_CFG_STATE_APP(v) (((v) & TWL6030_CFG_STATE_APP_MASK) >>\ + TWL6030_CFG_STATE_APP_SHIFT) + +/* Flags for SMPS Voltage reading */ +#define SMPS_OFFSET_EN BIT(0) +#define SMPS_EXTENDED_EN BIT(1) + +/* twl6032 SMPS EPROM values */ +#define TWL6030_SMPS_OFFSET 0xB0 +#define TWL6030_SMPS_MULT 0xB3 +#define SMPS_MULTOFFSET_SMPS4 BIT(0) +#define SMPS_MULTOFFSET_VIO BIT(1) +#define SMPS_MULTOFFSET_SMPS3 BIT(6) + +static inline int +twlreg_read(struct twlreg_info *info, unsigned slave_subgp, unsigned offset) +{ + u8 value; + int status; + + status = twl_i2c_read_u8(slave_subgp, + &value, info->base + offset); + return (status < 0) ? status : value; +} + +static inline int +twlreg_write(struct twlreg_info *info, unsigned slave_subgp, unsigned offset, + u8 value) +{ + return twl_i2c_write_u8(slave_subgp, + value, info->base + offset); +} + +/* generic power resource operations, which work on all regulators */ +static int twlreg_grp(struct regulator_dev *rdev) +{ + return twlreg_read(rdev_get_drvdata(rdev), TWL_MODULE_PM_RECEIVER, + VREG_GRP); +} + +/* + * Enable/disable regulators by joining/leaving the P1 (processor) group. + * We assume nobody else is updating the DEV_GRP registers. + */ +/* definition for 6030 family */ +#define P3_GRP_6030 BIT(2) /* secondary processor, modem, etc */ +#define P2_GRP_6030 BIT(1) /* "peripherals" */ +#define P1_GRP_6030 BIT(0) /* CPU/Linux */ + +static int twl6030reg_is_enabled(struct regulator_dev *rdev) +{ + struct twlreg_info *info = rdev_get_drvdata(rdev); + int grp = 0, val; + + if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) { + grp = twlreg_grp(rdev); + if (grp < 0) + return grp; + grp &= P1_GRP_6030; + } else { + grp = 1; + } + + val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE); + val = TWL6030_CFG_STATE_APP(val); + + return grp && (val == TWL6030_CFG_STATE_ON); +} + +#define PB_I2C_BUSY BIT(0) +#define PB_I2C_BWEN BIT(1) + + +static int twl6030reg_enable(struct regulator_dev *rdev) +{ + struct twlreg_info *info = rdev_get_drvdata(rdev); + int grp = 0; + int ret; + + if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) + grp = twlreg_grp(rdev); + if (grp < 0) + return grp; + + ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, + grp << TWL6030_CFG_STATE_GRP_SHIFT | + TWL6030_CFG_STATE_ON); + return ret; +} + +static int twl6030reg_disable(struct regulator_dev *rdev) +{ + struct twlreg_info *info = rdev_get_drvdata(rdev); + int grp = 0; + int ret; + + if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) + grp = P1_GRP_6030 | P2_GRP_6030 | P3_GRP_6030; + + /* For 6030, set the off state for all grps enabled */ + ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, + (grp) << TWL6030_CFG_STATE_GRP_SHIFT | + TWL6030_CFG_STATE_OFF); + + return ret; +} + +static int twl6030reg_get_status(struct regulator_dev *rdev) +{ + struct twlreg_info *info = rdev_get_drvdata(rdev); + int val; + + val = twlreg_grp(rdev); + if (val < 0) + return val; + + val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE); + + switch (TWL6030_CFG_STATE_APP(val)) { + case TWL6030_CFG_STATE_ON: + return REGULATOR_STATUS_NORMAL; + + case TWL6030_CFG_STATE_SLEEP: + return REGULATOR_STATUS_STANDBY; + + case TWL6030_CFG_STATE_OFF: + case TWL6030_CFG_STATE_OFF2: + default: + break; + } + + return REGULATOR_STATUS_OFF; +} + +static int twl6030reg_set_mode(struct regulator_dev *rdev, unsigned mode) +{ + struct twlreg_info *info = rdev_get_drvdata(rdev); + int grp = 0; + int val; + + if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) + grp = twlreg_grp(rdev); + + if (grp < 0) + return grp; + + /* Compose the state register settings */ + val = grp << TWL6030_CFG_STATE_GRP_SHIFT; + /* We can only set the mode through state machine commands... */ + switch (mode) { + case REGULATOR_MODE_NORMAL: + val |= TWL6030_CFG_STATE_ON; + break; + case REGULATOR_MODE_STANDBY: + val |= TWL6030_CFG_STATE_SLEEP; + break; + + default: + return -EINVAL; + } + + return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, val); +} + +static int twl6030coresmps_set_voltage(struct regulator_dev *rdev, int min_uV, + int max_uV, unsigned *selector) +{ + return -ENODEV; +} + +static int twl6030coresmps_get_voltage(struct regulator_dev *rdev) +{ + return -ENODEV; +} + +static struct regulator_ops twl6030coresmps_ops = { + .set_voltage = twl6030coresmps_set_voltage, + .get_voltage = twl6030coresmps_get_voltage, +}; + +static int twl6030ldo_list_voltage(struct regulator_dev *rdev, unsigned sel) +{ + struct twlreg_info *info = rdev_get_drvdata(rdev); + + switch (sel) { + case 0: + return 0; + case 1 ... 24: + /* Linear mapping from 00000001 to 00011000: + * Absolute voltage value = 1.0 V + 0.1 V × (sel – 00000001) + */ + return (info->min_mV + 100 * (sel - 1)) * 1000; + case 25 ... 30: + return -EINVAL; + case 31: + return 2750000; + default: + return -EINVAL; + } +} + +static int +twl6030ldo_set_voltage_sel(struct regulator_dev *rdev, unsigned selector) +{ + struct twlreg_info *info = rdev_get_drvdata(rdev); + + return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE, + selector); +} + +static int twl6030ldo_get_voltage_sel(struct regulator_dev *rdev) +{ + struct twlreg_info *info = rdev_get_drvdata(rdev); + int vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE); + + return vsel; +} + +static struct regulator_ops twl6030ldo_ops = { + .list_voltage = twl6030ldo_list_voltage, + + .set_voltage_sel = twl6030ldo_set_voltage_sel, + .get_voltage_sel = twl6030ldo_get_voltage_sel, + + .enable = twl6030reg_enable, + .disable = twl6030reg_disable, + .is_enabled = twl6030reg_is_enabled, + + .set_mode = twl6030reg_set_mode, + + .get_status = twl6030reg_get_status, +}; + +static struct regulator_ops twl6030fixed_ops = { + .list_voltage = regulator_list_voltage_linear, + + .enable = twl6030reg_enable, + .disable = twl6030reg_disable, + .is_enabled = twl6030reg_is_enabled, + + .set_mode = twl6030reg_set_mode, + + .get_status = twl6030reg_get_status, +}; + +/* + * SMPS status and control + */ + +static int twl6030smps_list_voltage(struct regulator_dev *rdev, unsigned index) +{ + struct twlreg_info *info = rdev_get_drvdata(rdev); + + int voltage = 0; + + switch (info->flags) { + case SMPS_OFFSET_EN: + voltage = 100000; + /* fall through */ + case 0: + switch (index) { + case 0: + voltage = 0; + break; + case 58: + voltage = 1350 * 1000; + break; + case 59: + voltage = 1500 * 1000; + break; + case 60: + voltage = 1800 * 1000; + break; + case 61: + voltage = 1900 * 1000; + break; + case 62: + voltage = 2100 * 1000; + break; + default: + voltage += (600000 + (12500 * (index - 1))); + } + break; + case SMPS_EXTENDED_EN: + switch (index) { + case 0: + voltage = 0; + break; + case 58: + voltage = 2084 * 1000; + break; + case 59: + voltage = 2315 * 1000; + break; + case 60: + voltage = 2778 * 1000; + break; + case 61: + voltage = 2932 * 1000; + break; + case 62: + voltage = 3241 * 1000; + break; + default: + voltage = (1852000 + (38600 * (index - 1))); + } + break; + case SMPS_OFFSET_EN | SMPS_EXTENDED_EN: + switch (index) { + case 0: + voltage = 0; + break; + case 58: + voltage = 4167 * 1000; + break; + case 59: + voltage = 2315 * 1000; + break; + case 60: + voltage = 2778 * 1000; + break; + case 61: + voltage = 2932 * 1000; + break; + case 62: + voltage = 3241 * 1000; + break; + default: + voltage = (2161000 + (38600 * (index - 1))); + } + break; + } + + return voltage; +} + +static int twl6030smps_map_voltage(struct regulator_dev *rdev, int min_uV, + int max_uV) +{ + struct twlreg_info *info = rdev_get_drvdata(rdev); + int vsel = 0; + + switch (info->flags) { + case 0: + if (min_uV == 0) + vsel = 0; + else if ((min_uV >= 600000) && (min_uV <= 1300000)) { + vsel = DIV_ROUND_UP(min_uV - 600000, 12500); + vsel++; + } + /* Values 1..57 for vsel are linear and can be calculated + * values 58..62 are non linear. + */ + else if ((min_uV > 1900000) && (min_uV <= 2100000)) + vsel = 62; + else if ((min_uV > 1800000) && (min_uV <= 1900000)) + vsel = 61; + else if ((min_uV > 1500000) && (min_uV <= 1800000)) + vsel = 60; + else if ((min_uV > 1350000) && (min_uV <= 1500000)) + vsel = 59; + else if ((min_uV > 1300000) && (min_uV <= 1350000)) + vsel = 58; + else + return -EINVAL; + break; + case SMPS_OFFSET_EN: + if (min_uV == 0) + vsel = 0; + else if ((min_uV >= 700000) && (min_uV <= 1420000)) { + vsel = DIV_ROUND_UP(min_uV - 700000, 12500); + vsel++; + } + /* Values 1..57 for vsel are linear and can be calculated + * values 58..62 are non linear. + */ + else if ((min_uV > 1900000) && (min_uV <= 2100000)) + vsel = 62; + else if ((min_uV > 1800000) && (min_uV <= 1900000)) + vsel = 61; + else if ((min_uV > 1350000) && (min_uV <= 1800000)) + vsel = 60; + else if ((min_uV > 1350000) && (min_uV <= 1500000)) + vsel = 59; + else if ((min_uV > 1300000) && (min_uV <= 1350000)) + vsel = 58; + else + return -EINVAL; + break; + case SMPS_EXTENDED_EN: + if (min_uV == 0) { + vsel = 0; + } else if ((min_uV >= 1852000) && (max_uV <= 4013600)) { + vsel = DIV_ROUND_UP(min_uV - 1852000, 38600); + vsel++; + } + break; + case SMPS_OFFSET_EN|SMPS_EXTENDED_EN: + if (min_uV == 0) { + vsel = 0; + } else if ((min_uV >= 2161000) && (min_uV <= 4321000)) { + vsel = DIV_ROUND_UP(min_uV - 2161000, 38600); + vsel++; + } + break; + } + + return vsel; +} + +static int twl6030smps_set_voltage_sel(struct regulator_dev *rdev, + unsigned int selector) +{ + struct twlreg_info *info = rdev_get_drvdata(rdev); + + return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS, + selector); +} + +static int twl6030smps_get_voltage_sel(struct regulator_dev *rdev) +{ + struct twlreg_info *info = rdev_get_drvdata(rdev); + + return twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS); +} + +static struct regulator_ops twlsmps_ops = { + .list_voltage = twl6030smps_list_voltage, + .map_voltage = twl6030smps_map_voltage, + + .set_voltage_sel = twl6030smps_set_voltage_sel, + .get_voltage_sel = twl6030smps_get_voltage_sel, + + .enable = twl6030reg_enable, + .disable = twl6030reg_disable, + .is_enabled = twl6030reg_is_enabled, + + .set_mode = twl6030reg_set_mode, + + .get_status = twl6030reg_get_status, +}; + +/*----------------------------------------------------------------------*/ + +#define TWL6030_ADJUSTABLE_SMPS(label) \ +static const struct twlreg_info TWL6030_INFO_##label = { \ + .desc = { \ + .name = #label, \ + .id = TWL6030_REG_##label, \ + .ops = &twl6030coresmps_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + }, \ + } + +#define TWL6030_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) \ +static const struct twlreg_info TWL6030_INFO_##label = { \ + .base = offset, \ + .min_mV = min_mVolts, \ + .max_mV = max_mVolts, \ + .desc = { \ + .name = #label, \ + .id = TWL6030_REG_##label, \ + .n_voltages = 32, \ + .ops = &twl6030ldo_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + }, \ + } + +#define TWL6032_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) \ +static const struct twlreg_info TWL6032_INFO_##label = { \ + .base = offset, \ + .min_mV = min_mVolts, \ + .max_mV = max_mVolts, \ + .desc = { \ + .name = #label, \ + .id = TWL6032_REG_##label, \ + .n_voltages = 32, \ + .ops = &twl6030ldo_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + }, \ + } + +#define TWL6030_FIXED_LDO(label, offset, mVolts, turnon_delay) \ +static const struct twlreg_info TWLFIXED_INFO_##label = { \ + .base = offset, \ + .id = 0, \ + .min_mV = mVolts, \ + .remap = 0, \ + .desc = { \ + .name = #label, \ + .id = TWL6030##_REG_##label, \ + .n_voltages = 1, \ + .ops = &twl6030fixed_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = mVolts * 1000, \ + .enable_time = turnon_delay, \ + .of_map_mode = NULL, \ + }, \ + } + +#define TWL6032_ADJUSTABLE_SMPS(label, offset) \ +static const struct twlreg_info TWLSMPS_INFO_##label = { \ + .base = offset, \ + .min_mV = 600, \ + .max_mV = 2100, \ + .desc = { \ + .name = #label, \ + .id = TWL6032_REG_##label, \ + .n_voltages = 63, \ + .ops = &twlsmps_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + }, \ + } + +/* VUSBCP is managed *only* by the USB subchip */ +/* 6030 REG with base as PMC Slave Misc : 0x0030 */ +/* Turnon-delay and remap configuration values for 6030 are not + verified since the specification is not public */ +TWL6030_ADJUSTABLE_SMPS(VDD1); +TWL6030_ADJUSTABLE_SMPS(VDD2); +TWL6030_ADJUSTABLE_SMPS(VDD3); +TWL6030_ADJUSTABLE_LDO(VAUX1_6030, 0x54, 1000, 3300); +TWL6030_ADJUSTABLE_LDO(VAUX2_6030, 0x58, 1000, 3300); +TWL6030_ADJUSTABLE_LDO(VAUX3_6030, 0x5c, 1000, 3300); +TWL6030_ADJUSTABLE_LDO(VMMC, 0x68, 1000, 3300); +TWL6030_ADJUSTABLE_LDO(VPP, 0x6c, 1000, 3300); +TWL6030_ADJUSTABLE_LDO(VUSIM, 0x74, 1000, 3300); +/* 6025 are renamed compared to 6030 versions */ +TWL6032_ADJUSTABLE_LDO(LDO2, 0x54, 1000, 3300); +TWL6032_ADJUSTABLE_LDO(LDO4, 0x58, 1000, 3300); +TWL6032_ADJUSTABLE_LDO(LDO3, 0x5c, 1000, 3300); +TWL6032_ADJUSTABLE_LDO(LDO5, 0x68, 1000, 3300); +TWL6032_ADJUSTABLE_LDO(LDO1, 0x6c, 1000, 3300); +TWL6032_ADJUSTABLE_LDO(LDO7, 0x74, 1000, 3300); +TWL6032_ADJUSTABLE_LDO(LDO6, 0x60, 1000, 3300); +TWL6032_ADJUSTABLE_LDO(LDOLN, 0x64, 1000, 3300); +TWL6032_ADJUSTABLE_LDO(LDOUSB, 0x70, 1000, 3300); +TWL6030_FIXED_LDO(VANA, 0x50, 2100, 0); +TWL6030_FIXED_LDO(VCXIO, 0x60, 1800, 0); +TWL6030_FIXED_LDO(VDAC, 0x64, 1800, 0); +TWL6030_FIXED_LDO(VUSB, 0x70, 3300, 0); +TWL6030_FIXED_LDO(V1V8, 0x16, 1800, 0); +TWL6030_FIXED_LDO(V2V1, 0x1c, 2100, 0); +TWL6032_ADJUSTABLE_SMPS(SMPS3, 0x34); +TWL6032_ADJUSTABLE_SMPS(SMPS4, 0x10); +TWL6032_ADJUSTABLE_SMPS(VIO, 0x16); + +static u8 twl_get_smps_offset(void) +{ + u8 value; + + twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value, + TWL6030_SMPS_OFFSET); + return value; +} + +static u8 twl_get_smps_mult(void) +{ + u8 value; + + twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value, + TWL6030_SMPS_MULT); + return value; +} + +#define TWL_OF_MATCH(comp, family, label) \ + { \ + .compatible = comp, \ + .data = &family##_INFO_##label, \ + } + +#define TWL6030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6030, label) +#define TWL6032_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6032, label) +#define TWLFIXED_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLFIXED, label) +#define TWLSMPS_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLSMPS, label) + +static const struct of_device_id twl_of_match[] = { + TWL6030_OF_MATCH("ti,twl6030-vdd1", VDD1), + TWL6030_OF_MATCH("ti,twl6030-vdd2", VDD2), + TWL6030_OF_MATCH("ti,twl6030-vdd3", VDD3), + TWL6030_OF_MATCH("ti,twl6030-vaux1", VAUX1_6030), + TWL6030_OF_MATCH("ti,twl6030-vaux2", VAUX2_6030), + TWL6030_OF_MATCH("ti,twl6030-vaux3", VAUX3_6030), + TWL6030_OF_MATCH("ti,twl6030-vmmc", VMMC), + TWL6030_OF_MATCH("ti,twl6030-vpp", VPP), + TWL6030_OF_MATCH("ti,twl6030-vusim", VUSIM), + TWL6032_OF_MATCH("ti,twl6032-ldo2", LDO2), + TWL6032_OF_MATCH("ti,twl6032-ldo4", LDO4), + TWL6032_OF_MATCH("ti,twl6032-ldo3", LDO3), + TWL6032_OF_MATCH("ti,twl6032-ldo5", LDO5), + TWL6032_OF_MATCH("ti,twl6032-ldo1", LDO1), + TWL6032_OF_MATCH("ti,twl6032-ldo7", LDO7), + TWL6032_OF_MATCH("ti,twl6032-ldo6", LDO6), + TWL6032_OF_MATCH("ti,twl6032-ldoln", LDOLN), + TWL6032_OF_MATCH("ti,twl6032-ldousb", LDOUSB), + TWLFIXED_OF_MATCH("ti,twl6030-vana", VANA), + TWLFIXED_OF_MATCH("ti,twl6030-vcxio", VCXIO), + TWLFIXED_OF_MATCH("ti,twl6030-vdac", VDAC), + TWLFIXED_OF_MATCH("ti,twl6030-vusb", VUSB), + TWLFIXED_OF_MATCH("ti,twl6030-v1v8", V1V8), + TWLFIXED_OF_MATCH("ti,twl6030-v2v1", V2V1), + TWLSMPS_OF_MATCH("ti,twl6032-smps3", SMPS3), + TWLSMPS_OF_MATCH("ti,twl6032-smps4", SMPS4), + TWLSMPS_OF_MATCH("ti,twl6032-vio", VIO), + {}, +}; +MODULE_DEVICE_TABLE(of, twl_of_match); + +static int twlreg_probe(struct platform_device *pdev) +{ + int id; + struct twlreg_info *info; + const struct twlreg_info *template; + struct regulator_init_data *initdata; + struct regulation_constraints *c; + struct regulator_dev *rdev; + const struct of_device_id *match; + struct regulator_config config = { }; + + match = of_match_device(twl_of_match, &pdev->dev); + if (!match) + return -ENODEV; + + template = match->data; + if (!template) + return -ENODEV; + + id = template->desc.id; + initdata = of_get_regulator_init_data(&pdev->dev, pdev->dev.of_node, + &template->desc); + if (!initdata) + return -EINVAL; + + info = devm_kmemdup(&pdev->dev, template, sizeof(*info), GFP_KERNEL); + if (!info) + return -ENOMEM; + + /* Constrain board-specific capabilities according to what + * this driver and the chip itself can actually do. + */ + c = &initdata->constraints; + c->valid_modes_mask &= REGULATOR_MODE_NORMAL | REGULATOR_MODE_STANDBY; + c->valid_ops_mask &= REGULATOR_CHANGE_VOLTAGE + | REGULATOR_CHANGE_MODE + | REGULATOR_CHANGE_STATUS; + + switch (id) { + case TWL6032_REG_SMPS3: + if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS3) + info->flags |= SMPS_EXTENDED_EN; + if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS3) + info->flags |= SMPS_OFFSET_EN; + break; + case TWL6032_REG_SMPS4: + if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS4) + info->flags |= SMPS_EXTENDED_EN; + if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS4) + info->flags |= SMPS_OFFSET_EN; + break; + case TWL6032_REG_VIO: + if (twl_get_smps_mult() & SMPS_MULTOFFSET_VIO) + info->flags |= SMPS_EXTENDED_EN; + if (twl_get_smps_offset() & SMPS_MULTOFFSET_VIO) + info->flags |= SMPS_OFFSET_EN; + break; + } + + config.dev = &pdev->dev; + config.init_data = initdata; + config.driver_data = info; + config.of_node = pdev->dev.of_node; + + rdev = devm_regulator_register(&pdev->dev, &info->desc, &config); + if (IS_ERR(rdev)) { + dev_err(&pdev->dev, "can't register %s, %ld\n", + info->desc.name, PTR_ERR(rdev)); + return PTR_ERR(rdev); + } + platform_set_drvdata(pdev, rdev); + + /* NOTE: many regulators support short-circuit IRQs (presentable + * as REGULATOR_OVER_CURRENT notifications?) configured via: + * - SC_CONFIG + * - SC_DETECT1 (vintana2, vmmc1/2, vaux1/2/3/4) + * - SC_DETECT2 (vusb, vdac, vio, vdd1/2, vpll2) + * - IT_CONFIG + */ + + return 0; +} + +MODULE_ALIAS("platform:twl6030_reg"); + +static struct platform_driver twlreg_driver = { + .probe = twlreg_probe, + /* NOTE: short name, to work around driver model truncation of + * "twl_regulator.12" (and friends) to "twl_regulator.1". + */ + .driver = { + .name = "twl6030_reg", + .of_match_table = of_match_ptr(twl_of_match), + }, +}; + +static int __init twlreg_init(void) +{ + return platform_driver_register(&twlreg_driver); +} +subsys_initcall(twlreg_init); + +static void __exit twlreg_exit(void) +{ + platform_driver_unregister(&twlreg_driver); +} +module_exit(twlreg_exit) + +MODULE_DESCRIPTION("TWL6030 regulator driver"); +MODULE_LICENSE("GPL"); |