regulator: bd9571mwv: Fix AVS and DVFS voltage range

[ Upstream commit 3b6e7088afc919f5b52e4d2de8501ad34d35b09b ]

According to Table 30 ("DVFS_MoniVDAC [6:0] Setting Table") in the
BD9571MWV-M Datasheet Rev. 002, the valid voltage range is 600..1100 mV
(settings 0x3c..0x6e).  While the lower limit is taken into account (by
setting regulator_desc.linear_min_sel to 0x3c), the upper limit is not.

Fix this by reducing regulator_desc.n_voltages from 0x80 to 0x6f.

Fixes: e85c5a153fe237f2 ("regulator: Add ROHM BD9571MWV-M PMIC regulator driver")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20210312130242.3390038-2-geert+renesas@glider.be
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/regulator/bd9571mwv-regulator.c b/drivers/regulator/bd9571mwv-regulator.c
index e690c2c..25e3302 100644 (file)
--- a/drivers/regulator/bd9571mwv-regulator.c
+++ b/drivers/regulator/bd9571mwv-regulator.c
@@ -124,7 +124,7 @@ static const struct regulator_ops vid_ops = {
 
 static const struct regulator_desc regulators[] = {
        BD9571MWV_REG("VD09", "vd09", VD09, avs_ops, 0, 0x7f,
-                     0x80, 600000, 10000, 0x3c),
+                     0x6f, 600000, 10000, 0x3c),
        BD9571MWV_REG("VD18", "vd18", VD18, vid_ops, BD9571MWV_VD18_VID, 0xf,
                      16, 1625000, 25000, 0),
        BD9571MWV_REG("VD25", "vd25", VD25, vid_ops, BD9571MWV_VD25_VID, 0xf,
@@ -133,7 +133,7 @@ static const struct regulator_desc regulators[] = {
                      11, 2800000, 100000, 0),
        BD9571MWV_REG("DVFS", "dvfs", DVFS, reg_ops,
                      BD9571MWV_DVFS_MONIVDAC, 0x7f,
-                     0x80, 600000, 10000, 0x3c),
+                     0x6f, 600000, 10000, 0x3c),
 };
 
 #ifdef CONFIG_PM_SLEEP