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/pcap-regulator.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'drivers/regulator/pcap-regulator.c') diff --git a/drivers/regulator/pcap-regulator.c b/drivers/regulator/pcap-regulator.c index 29d0566379a..8dca11694f7 100644 --- a/drivers/regulator/pcap-regulator.c +++ b/drivers/regulator/pcap-regulator.c @@ -151,7 +151,8 @@ static struct pcap_regulator vreg_table[] = { }; static int pcap_regulator_set_voltage(struct regulator_dev *rdev, - int min_uV, int max_uV) + int min_uV, int max_uV, + unsiged *selector) { struct pcap_regulator *vreg = &vreg_table[rdev_get_id(rdev)]; void *pcap = rdev_get_drvdata(rdev); @@ -170,10 +171,12 @@ static int pcap_regulator_set_voltage(struct regulator_dev *rdev, i = 0; uV = vreg->voltage_table[i] * 1000; - if (min_uV <= uV && uV <= max_uV) + if (min_uV <= uV && uV <= max_uV) { + *selector = i; return ezx_pcap_set_bits(pcap, vreg->reg, (vreg->n_voltages - 1) << vreg->index, i << vreg->index); + } if (i == 0 && rdev_get_id(rdev) == V1) i = vreg->n_voltages - 1; -- cgit v1.2.3-70-g09d2