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author | Maxime Ripard <maxime@cerno.tech> | 2021-05-11 13:35:52 +0200 |
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committer | Maxime Ripard <maxime@cerno.tech> | 2021-05-11 13:35:52 +0200 |
commit | c55b44c9386f3ee1b08752638559f19deaf6040d (patch) | |
tree | c843a21f45180387fcd9eb2625cc9d1f166a3156 /drivers/regulator/fan53555.c | |
parent | MAINTAINERS: Update my e-mail (diff) | |
parent | Linux 5.13-rc1 (diff) | |
download | linux-c55b44c9386f3ee1b08752638559f19deaf6040d.tar.xz linux-c55b44c9386f3ee1b08752638559f19deaf6040d.zip |
Merge drm/drm-fixes into drm-misc-fixes
Start this new release drm-misc-fixes branch
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Diffstat (limited to 'drivers/regulator/fan53555.c')
-rw-r--r-- | drivers/regulator/fan53555.c | 136 |
1 files changed, 122 insertions, 14 deletions
diff --git a/drivers/regulator/fan53555.c b/drivers/regulator/fan53555.c index aa426183b6a1..f3918f03aaf3 100644 --- a/drivers/regulator/fan53555.c +++ b/drivers/regulator/fan53555.c @@ -24,6 +24,12 @@ /* Voltage setting */ #define FAN53555_VSEL0 0x00 #define FAN53555_VSEL1 0x01 + +#define TCS4525_VSEL0 0x11 +#define TCS4525_VSEL1 0x10 +#define TCS4525_TIME 0x13 +#define TCS4525_COMMAND 0x14 + /* Control register */ #define FAN53555_CONTROL 0x02 /* IC Type */ @@ -49,11 +55,20 @@ #define FAN53555_NVOLTAGES 64 /* Numbers of voltages */ #define FAN53526_NVOLTAGES 128 +#define TCS4525_NVOLTAGES 127 /* Numbers of voltages */ + +#define TCS_VSEL_NSEL_MASK 0x7f +#define TCS_VSEL0_MODE (1 << 7) +#define TCS_VSEL1_MODE (1 << 6) + +#define TCS_SLEW_SHIFT 3 +#define TCS_SLEW_MASK (0x3 < 3) enum fan53555_vendor { FAN53526_VENDOR_FAIRCHILD = 0, FAN53555_VENDOR_FAIRCHILD, FAN53555_VENDOR_SILERGY, + FAN53555_VENDOR_TCS, }; enum { @@ -106,6 +121,11 @@ struct fan53555_device_info { unsigned int mode_mask; /* Sleep voltage cache */ unsigned int sleep_vol_cache; + /* Slew rate */ + unsigned int slew_reg; + unsigned int slew_mask; + unsigned int slew_shift; + unsigned int slew_rate; }; static int fan53555_set_suspend_voltage(struct regulator_dev *rdev, int uV) @@ -189,13 +209,37 @@ static const int slew_rates[] = { 500, }; +static const int tcs_slew_rates[] = { + 18700, + 9300, + 4600, + 2300, +}; + static int fan53555_set_ramp(struct regulator_dev *rdev, int ramp) { struct fan53555_device_info *di = rdev_get_drvdata(rdev); int regval = -1, i; + const int *slew_rate_t; + int slew_rate_n; - for (i = 0; i < ARRAY_SIZE(slew_rates); i++) { - if (ramp <= slew_rates[i]) + switch (di->vendor) { + case FAN53526_VENDOR_FAIRCHILD: + case FAN53555_VENDOR_FAIRCHILD: + case FAN53555_VENDOR_SILERGY: + slew_rate_t = slew_rates; + slew_rate_n = ARRAY_SIZE(slew_rates); + break; + case FAN53555_VENDOR_TCS: + slew_rate_t = tcs_slew_rates; + slew_rate_n = ARRAY_SIZE(tcs_slew_rates); + break; + default: + return -EINVAL; + } + + for (i = 0; i < slew_rate_n; i++) { + if (ramp <= slew_rate_t[i]) regval = i; else break; @@ -206,8 +250,8 @@ static int fan53555_set_ramp(struct regulator_dev *rdev, int ramp) return -EINVAL; } - return regmap_update_bits(rdev->regmap, FAN53555_CONTROL, - CTL_SLEW_MASK, regval << CTL_SLEW_SHIFT); + return regmap_update_bits(rdev->regmap, di->slew_reg, + di->slew_mask, regval << di->slew_shift); } static const struct regulator_ops fan53555_regulator_ops = { @@ -292,7 +336,9 @@ static int fan53555_voltages_setup_fairchild(struct fan53555_device_info *di) "Chip ID %d not supported!\n", di->chip_id); return -EINVAL; } - + di->slew_reg = FAN53555_CONTROL; + di->slew_mask = CTL_SLEW_MASK; + di->slew_shift = CTL_SLEW_SHIFT; di->vsel_count = FAN53555_NVOLTAGES; return 0; @@ -312,12 +358,29 @@ static int fan53555_voltages_setup_silergy(struct fan53555_device_info *di) "Chip ID %d not supported!\n", di->chip_id); return -EINVAL; } - + di->slew_reg = FAN53555_CONTROL; + di->slew_reg = FAN53555_CONTROL; + di->slew_mask = CTL_SLEW_MASK; + di->slew_shift = CTL_SLEW_SHIFT; di->vsel_count = FAN53555_NVOLTAGES; return 0; } +static int fan53555_voltages_setup_tcs(struct fan53555_device_info *di) +{ + di->slew_reg = TCS4525_TIME; + di->slew_mask = TCS_SLEW_MASK; + di->slew_shift = TCS_SLEW_MASK; + + /* Init voltage range and step */ + di->vsel_min = 600000; + di->vsel_step = 6250; + di->vsel_count = TCS4525_NVOLTAGES; + + return 0; +} + /* For 00,01,03,05 options: * VOUT = 0.60V + NSELx * 10mV, from 0.60 to 1.23V. * For 04 option: @@ -329,17 +392,41 @@ static int fan53555_device_setup(struct fan53555_device_info *di, int ret = 0; /* Setup voltage control register */ - switch (pdata->sleep_vsel_id) { - case FAN53555_VSEL_ID_0: - di->sleep_reg = FAN53555_VSEL0; - di->vol_reg = FAN53555_VSEL1; + switch (di->vendor) { + case FAN53526_VENDOR_FAIRCHILD: + case FAN53555_VENDOR_FAIRCHILD: + case FAN53555_VENDOR_SILERGY: + switch (pdata->sleep_vsel_id) { + case FAN53555_VSEL_ID_0: + di->sleep_reg = FAN53555_VSEL0; + di->vol_reg = FAN53555_VSEL1; + break; + case FAN53555_VSEL_ID_1: + di->sleep_reg = FAN53555_VSEL1; + di->vol_reg = FAN53555_VSEL0; + break; + default: + dev_err(di->dev, "Invalid VSEL ID!\n"); + return -EINVAL; + } break; - case FAN53555_VSEL_ID_1: - di->sleep_reg = FAN53555_VSEL1; - di->vol_reg = FAN53555_VSEL0; + case FAN53555_VENDOR_TCS: + switch (pdata->sleep_vsel_id) { + case FAN53555_VSEL_ID_0: + di->sleep_reg = TCS4525_VSEL0; + di->vol_reg = TCS4525_VSEL1; + break; + case FAN53555_VSEL_ID_1: + di->sleep_reg = TCS4525_VSEL1; + di->vol_reg = TCS4525_VSEL0; + break; + default: + dev_err(di->dev, "Invalid VSEL ID!\n"); + return -EINVAL; + } break; default: - dev_err(di->dev, "Invalid VSEL ID!\n"); + dev_err(di->dev, "vendor %d not supported!\n", di->vendor); return -EINVAL; } @@ -362,6 +449,18 @@ static int fan53555_device_setup(struct fan53555_device_info *di, di->mode_reg = di->vol_reg; di->mode_mask = VSEL_MODE; break; + case FAN53555_VENDOR_TCS: + di->mode_reg = TCS4525_COMMAND; + + switch (pdata->sleep_vsel_id) { + case FAN53555_VSEL_ID_0: + di->mode_mask = TCS_VSEL1_MODE; + break; + case FAN53555_VSEL_ID_1: + di->mode_mask = TCS_VSEL0_MODE; + break; + } + break; default: dev_err(di->dev, "vendor %d not supported!\n", di->vendor); return -EINVAL; @@ -378,6 +477,9 @@ static int fan53555_device_setup(struct fan53555_device_info *di, case FAN53555_VENDOR_SILERGY: ret = fan53555_voltages_setup_silergy(di); break; + case FAN53555_VENDOR_TCS: + ret = fan53555_voltages_setup_tcs(di); + break; default: dev_err(di->dev, "vendor %d not supported!\n", di->vendor); return -EINVAL; @@ -449,6 +551,9 @@ static const struct of_device_id __maybe_unused fan53555_dt_ids[] = { }, { .compatible = "silergy,syr828", .data = (void *)FAN53555_VENDOR_SILERGY, + }, { + .compatible = "tcs,tcs4525", + .data = (void *)FAN53555_VENDOR_TCS }, { } }; @@ -554,6 +659,9 @@ static const struct i2c_device_id fan53555_id[] = { }, { .name = "syr828", .driver_data = FAN53555_VENDOR_SILERGY + }, { + .name = "tcs4525", + .driver_data = FAN53555_VENDOR_TCS }, { }, }; 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