[PATCH v1 2/3] pinctrl: mpfs-mssio: fix width of unused bank voltage setting

[Conor Dooley]

From: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>

The bank voltages are only 4 bits wide, so when a pin was unused the
driver was not correctly interpreting it as being at zero volts, because
the driver's value for unused had two extra set bits.

CC: stable@xxxxxxxxxxxxxxx
Fixes: 488d704ed7b7 ("pinctrl: add polarfire soc mssio pinctrl driver")
Signed-off-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
---
 drivers/pinctrl/microchip/pinctrl-mpfs-mssio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pinctrl/microchip/pinctrl-mpfs-mssio.c b/drivers/pinctrl/microchip/pinctrl-mpfs-mssio.c
index 502624221aca..9e6d233804cb 100644
--- a/drivers/pinctrl/microchip/pinctrl-mpfs-mssio.c
+++ b/drivers/pinctrl/microchip/pinctrl-mpfs-mssio.c
@@ -86,7 +86,7 @@ static struct mpfs_pinctrl_bank_voltage mpfs_pinctrl_bank_voltages[8] = {
 	{ .uv = 1800000, .val = 4 },
 	{ .uv = 2500000, .val = 6 },
 	{ .uv = 3300000, .val = 8 },
-	{ .uv = 0, .val = 0x3f }, // pin unused
+	{ .uv = 0, .val = 0xf }, // pin unused
 };
 
 static int mpfs_pinctrl_get_drive_strength_ma(u32 drive_strength)
-- 
2.53.0