regulator: Convert pcap-regulator to set_voltage_sel

After converting to set_voltage_sel, we can remove the workaroud of getting
the best match voltage for V1. The core will iterate through the whole voltage
table and find the best match for us.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 6 insertions, 27 deletions

diff --git a/drivers/regulator/pcap-regulator.c b/drivers/regulator/pcap-regulator.c
index a5aab1b08bcf..b9666a2c45f3 100644
--- a/drivers/regulator/pcap-regulator.c
+++ b/drivers/regulator/pcap-regulator.c
@@ -150,40 +150,19 @@ static struct pcap_regulator vreg_table[] = {
         VREG_INFO(SW2S,  PCAP_REG_LOWPWR,  NA, 20, NA, NA), */
 };
 
-static int pcap_regulator_set_voltage(struct regulator_dev *rdev,
-                                      int min_uV, int max_uV,
-                                      unsigned *selector)
+static int pcap_regulator_set_voltage_sel(struct regulator_dev *rdev,
+                                          unsigned selector)
 {
         struct pcap_regulator *vreg = &vreg_table[rdev_get_id(rdev)];
         void *pcap = rdev_get_drvdata(rdev);
-        int uV;
-        u8 i;
 
         /* the regulator doesn't support voltage switching */
         if (vreg->n_voltages == 1)
                 return -EINVAL;
 
-        for (i = 0; i < vreg->n_voltages; i++) {
-                /* For V1 the first is not the best match */
-                if (i == 0 && rdev_get_id(rdev) == V1)
-                        i = 1;
-                else if (i + 1 == vreg->n_voltages && rdev_get_id(rdev) == V1)
-                        i = 0;
-
-                uV = vreg->voltage_table[i] * 1000;
-                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;
-        }
-
-        /* the requested voltage range is not supported by this regulator */
-        return -EINVAL;
+        return ezx_pcap_set_bits(pcap, vreg->reg,
+                                 (vreg->n_voltages - 1) << vreg->index,
+                                 selector << vreg->index);
 }
 
 static int pcap_regulator_get_voltage(struct regulator_dev *rdev)
@@ -248,7 +227,7 @@ static int pcap_regulator_list_voltage(struct regulator_dev *rdev,
 
 static struct regulator_ops pcap_regulator_ops = {
         .list_voltage   = pcap_regulator_list_voltage,
-        .set_voltage    = pcap_regulator_set_voltage,
+        .set_voltage_sel = pcap_regulator_set_voltage_sel,
         .get_voltage    = pcap_regulator_get_voltage,
         .enable         = pcap_regulator_enable,
         .disable        = pcap_regulator_disable,