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 --- drivers/power/regulator/tps65219_regulator.c | 26 ++++++++++---------- include/power/tps65219.h | 14 +++++++++-- 2 files changed, 25 insertions(+), 15 deletions(-)
diff --git a/drivers/power/regulator/tps65219_regulator.c b/drivers/power/regulator/tps65219_regulator.c index 4b0fb205909a..88abc896b3a2 100644 --- a/drivers/power/regulator/tps65219_regulator.c +++ b/drivers/power/regulator/tps65219_regulator.c @@ -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; } diff --git a/include/power/tps65219.h b/include/power/tps65219.h index aa81b92266fd..e8780af2d811 100644 --- a/include/power/tps65219.h +++ b/include/power/tps65219.h @@ -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