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 <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
diff --git a/drivers/regulator/pcap-regulator.c b/drivers/regulator/pcap-regulator.c
index 29d0566..8dca116 100644
--- a/drivers/regulator/pcap-regulator.c
+++ b/drivers/regulator/pcap-regulator.c
@@ -151,7 +151,8 @@
};
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 @@
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;