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regulator: TPS65910: Fix VDD1/2 voltage selector count

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Count of selector voltage is required for regulator_set_voltage
to work via set_voltage_sel. VDD1/2 currently have it as zero,
so regulator_set_voltage won't work for VDD1/2.
Update count (n_voltages) for VDD1/2.

Output Voltage = (step value * 12.5 mV + 562.5 mV) * gain

With above expr, number of voltages that can be selected is
step value count * gain count

constant for gain count will be called VDD1_2_NUM_VOLT_COARSE

existing constant for step value count is VDD1_2_NUM_VOLTS,
use VDD1_2_NUM_VOLT_FINE instead to make clear that step value
is not the only component in deciding selectable voltage count

Signed-off-by: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Afzal Mohammed
2011-11-08 18:54:10 +05:30
committed by Mark Brown
parent cfcfc9eca2
commit 780dc9ba4e
2 changed files with 10 additions and 7 deletions
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3
include/linux/mfd/tps65910.h
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@@ -243,7 +243,8 @@
/*Registers VDD1, VDD2 voltage values definitions */
#define VDD1_2_NUM_VOLTS 73
#define VDD1_2_NUM_VOLT_FINE 73
#define VDD1_2_NUM_VOLT_COARSE 3
#define VDD1_2_MIN_VOLT 6000
#define VDD1_2_OFFSET 125