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power: replace magic numbers with macros

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Replace magic numbers in buckval2votl() & buckvolt2val() with macros to
help with clarity and correlate what the numbers correspond to in the
TPS65219 datasheet.

Signed-off-by: Shree Ramamoorthy <s-ramamoorthy@ti.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
This commit is contained in:
Shree Ramamoorthy
2024-12-18 11:12:36 -06:00
committed by Jaehoon Chung
parent eda65fa42b
commit 7e261a05a5
2 changed files with 25 additions and 15 deletions
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26
drivers/power/regulator/tps65219_regulator.c
View File

@@ -72,12 +72,12 @@ static int tps65219_buck_enable(struct udevice *dev, int op, bool *enable)
static int tps65219_buck_volt2val(int uV)
{
if (uV > TPS65219_BUCK_VOLT_MAX)
if (uV > TPS65219_BUCK_3V4)
return -EINVAL;
else if (uV >= 1400000)
return (uV - 1400000) / 100000 + 0x20;
else if (uV >= 600000)
return (uV - 600000) / 25000 + 0x00;
else if (uV >= TPS65219_BUCK_1V4)
return (uV - TPS65219_BUCK_1V4) / TPS65219_VOLT_STEP_100MV + TPS65219_BUCK_REG_1V4;
else if (uV >= TPS65219_BUCK_0V6)
return (uV - TPS65219_BUCK_0V6) / TPS65219_VOLT_STEP_25MV + TPS65219_BUCK_REG_0V6;
else
return -EINVAL;
}
@@ -86,12 +86,12 @@ static int tps65219_buck_val2volt(int val)
{
if (val > TPS65219_VOLT_MASK)
return -EINVAL;
else if (val > 0x34)
return TPS65219_BUCK_VOLT_MAX;
else if (val > 0x20)
return 1400000 + (val - 0x20) * 100000;
else if (val >= 0)
return 600000 + val * 25000;
else if (val > TPS65219_BUCK_REG_3V4)
return TPS65219_BUCK_3V4;
else if (val > TPS65219_BUCK_REG_1V4)
return TPS65219_BUCK_1V4 + (val - TPS65219_BUCK_REG_1V4) * TPS65219_VOLT_STEP_100MV;
else if (val >= TPS65219_BUCK_REG_0V6)
return TPS65219_BUCK_0V6 + val * TPS65219_VOLT_STEP_25MV;
else
return -EINVAL;
}
@@ -161,7 +161,7 @@ static int tps65219_ldo_volt2val(int idx, int uV)
if (uV > max)
return -EINVAL;
else if (uV >= base)
return (uV - TPS65219_LDO12_VOLT_MIN) / 50000;
return (uV - TPS65219_LDO12_VOLT_MIN) / TPS65219_VOLT_STEP_50MV;
else
return -EINVAL;
}
@@ -187,7 +187,7 @@ static int tps65219_ldo_val2volt(int idx, int val)
else if (val <= reg_base)
return base;
else if (val >= 0)
return TPS65219_LDO12_VOLT_MIN + (50000 * val);
return TPS65219_LDO12_VOLT_MIN + (TPS65219_VOLT_STEP_50MV * val);
else
return -EINVAL;
}

14
include/power/tps65219.h
View File

@@ -17,10 +17,20 @@
#define TPS65219_BUCK_DRIVER "tps65219_buck"
#define TPS65219_VOLT_MASK 0x3F
#define TPS65219_BUCK_VOLT_MAX 3400000
#define TPS65219_ENABLE_CTRL_REG 0x2
#define TPS65219_VOLT_STEP_25MV 25000
#define TPS65219_VOLT_STEP_50MV 50000
#define TPS65219_VOLT_STEP_100MV 100000
#define TPS65219_BUCK_0V6 600000
#define TPS65219_BUCK_1V4 1400000
#define TPS65219_BUCK_3V4 3400000
#define TPS65219_BUCK_REG_0V6 0x00
#define TPS65219_BUCK_REG_1V4 0x20
#define TPS65219_BUCK_REG_3V4 0x34
#define TPS65219_BUCK1_VOUT_REG 0xa
#define TPS65219_BUCK2_VOUT_REG 0x9
#define TPS65219_BUCK3_VOUT_REG 0x8