From 3a93f2a9f4d8f73d74c0e552feb68a10f778a219 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 10 Nov 2010 14:38:29 +0000 Subject: regulator: Report actual configured voltage to set_voltage() Change the interface used by set_voltage() to report the selected value to the regulator core in terms of a selector used by list_voltage(). This allows the regulator core to know the voltage that was chosen without having to do an explict get_voltage(), which would be much more expensive as it will generally access hardware. Signed-off-by: Mark Brown Signed-off-by: Liam Girdwood --- drivers/regulator/pcf50633-regulator.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers/regulator/pcf50633-regulator.c') diff --git a/drivers/regulator/pcf50633-regulator.c b/drivers/regulator/pcf50633-regulator.c index c8f41dc..69a11d9 100644 --- a/drivers/regulator/pcf50633-regulator.c +++ b/drivers/regulator/pcf50633-regulator.c @@ -108,7 +108,8 @@ static unsigned int ldo_voltage_value(u8 bits) } static int pcf50633_regulator_set_voltage(struct regulator_dev *rdev, - int min_uV, int max_uV) + int min_uV, int max_uV, + unsigned *selector) { struct pcf50633 *pcf; int regulator_id, millivolts; @@ -147,6 +148,8 @@ static int pcf50633_regulator_set_voltage(struct regulator_dev *rdev, return -EINVAL; } + *selector = volt_bits; + return pcf50633_reg_write(pcf, regnr, volt_bits); } -- cgit v1.1