From 1e12dfc9681fed46fbc9fffc6aba9613908c1213 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 20 Jun 2012 22:32:08 +0800 Subject: [PATCH] regulator: tps6524x: Convert fixed ilimsel to table based This patch refactors the code to get rid of the fixed_ilimsel and FIXED_ILIMSEL flag usage, and convert all the fixed ilimsel to table based (with one entry in the table). We can differentiate fixed ilimsel by checking info->n_ilimsels == 1, thus FIXED_ILIMSEL flag can be removed. This change makes the logic of the code simpler as all the ilimsels are table based now. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/tps6524x-regulator.c | 44 +++++++++++++++----------- 1 file changed, 26 insertions(+), 18 deletions(-) diff --git a/drivers/regulator/tps6524x-regulator.c b/drivers/regulator/tps6524x-regulator.c index 48e37bd95a27..947ece933d90 100644 --- a/drivers/regulator/tps6524x-regulator.c +++ b/drivers/regulator/tps6524x-regulator.c @@ -110,8 +110,6 @@ #define N_SWITCH 2 #define N_REGULATORS (N_DCDC + N_LDO + N_SWITCH) -#define FIXED_ILIMSEL BIT(0) - #define CMD_READ(reg) ((reg) << 6) #define CMD_WRITE(reg) (BIT(5) | (reg) << 6) #define STAT_CLK BIT(3) @@ -130,9 +128,7 @@ struct supply_info { int n_voltages; const unsigned int *voltages; int n_ilimsels; - const int *ilimsels; - int fixed_ilimsel; - int flags; + const unsigned int *ilimsels; struct field enable, voltage, ilimsel; }; @@ -353,24 +349,36 @@ static const unsigned int fixed_5000000_voltage[] = { 5000000 }; -static const int ldo_ilimsel[] = { +static const unsigned int ldo_ilimsel[] = { 400000, 1500000 }; -static const int usb_ilimsel[] = { +static const unsigned int usb_ilimsel[] = { 200000, 400000, 800000, 1000000 }; +static const unsigned int fixed_2400000_ilimsel[] = { + 2400000 +}; + +static const unsigned int fixed_1200000_ilimsel[] = { + 1200000 +}; + +static const unsigned int fixed_400000_ilimsel[] = { + 400000 +}; + #define __MK_FIELD(_reg, _mask, _shift) \ { .reg = (_reg), .mask = (_mask), .shift = (_shift), } static const struct supply_info supply_info[N_REGULATORS] = { { .name = "DCDC1", - .flags = FIXED_ILIMSEL, .n_voltages = ARRAY_SIZE(dcdc1_voltages), .voltages = dcdc1_voltages, - .fixed_ilimsel = 2400000, + .n_ilimsels = ARRAY_SIZE(fixed_2400000_ilimsel), + .ilimsels = fixed_2400000_ilimsel, .enable = __MK_FIELD(REG_DCDC_EN, DCDCDCDC_EN_MASK, DCDCDCDC1_EN_SHIFT), .voltage = __MK_FIELD(REG_DCDC_SET, DCDC_VDCDC_MASK, @@ -378,10 +386,10 @@ static const struct supply_info supply_info[N_REGULATORS] = { }, { .name = "DCDC2", - .flags = FIXED_ILIMSEL, .n_voltages = ARRAY_SIZE(dcdc2_voltages), .voltages = dcdc2_voltages, - .fixed_ilimsel = 1200000, + .n_ilimsels = ARRAY_SIZE(fixed_1200000_ilimsel), + .ilimsels = fixed_1200000_ilimsel, .enable = __MK_FIELD(REG_DCDC_EN, DCDCDCDC_EN_MASK, DCDCDCDC2_EN_SHIFT), .voltage = __MK_FIELD(REG_DCDC_SET, DCDC_VDCDC_MASK, @@ -389,10 +397,10 @@ static const struct supply_info supply_info[N_REGULATORS] = { }, { .name = "DCDC3", - .flags = FIXED_ILIMSEL, .n_voltages = ARRAY_SIZE(dcdc3_voltages), .voltages = dcdc3_voltages, - .fixed_ilimsel = 1200000, + .n_ilimsels = ARRAY_SIZE(fixed_1200000_ilimsel), + .ilimsels = fixed_1200000_ilimsel, .enable = __MK_FIELD(REG_DCDC_EN, DCDCDCDC_EN_MASK, DCDCDCDC3_EN_SHIFT), .voltage = __MK_FIELD(REG_DCDC_SET, DCDC_VDCDC_MASK, @@ -439,8 +447,8 @@ static const struct supply_info supply_info[N_REGULATORS] = { .name = "LCD", .n_voltages = ARRAY_SIZE(fixed_5000000_voltage), .voltages = fixed_5000000_voltage, - .flags = FIXED_ILIMSEL, - .fixed_ilimsel = 400000, + .n_ilimsels = ARRAY_SIZE(fixed_400000_ilimsel), + .ilimsels = fixed_400000_ilimsel, .enable = __MK_FIELD(REG_BLOCK_EN, BLOCK_MASK, BLOCK_LCD_SHIFT), }, @@ -491,7 +499,7 @@ static int set_current_limit(struct regulator_dev *rdev, int min_uA, hw = rdev_get_drvdata(rdev); info = &supply_info[rdev_get_id(rdev)]; - if (info->flags & FIXED_ILIMSEL) + if (info->n_ilimsels == 1) return -EINVAL; for (i = 0; i < info->n_ilimsels; i++) @@ -514,8 +522,8 @@ static int get_current_limit(struct regulator_dev *rdev) hw = rdev_get_drvdata(rdev); info = &supply_info[rdev_get_id(rdev)]; - if (info->flags & FIXED_ILIMSEL) - return info->fixed_ilimsel; + if (info->n_ilimsels == 1) + return info->ilimsels[0]; ret = read_field(hw, &info->ilimsel); if (ret < 0) -- 2.39.5