From: Chris Packham <chris.packham@xxxxxxxxxxxxxxxxxxx>
[ Upstream commit 63c3212e7a37d68c89a13bdaebce869f4e064e67 ]
Per the datasheet the i2c functions use MPP_Sel=0x1. They are documented
as using MPP_Sel=0x4 as well but mixing 0x1 and 0x4 is clearly wrong. On
the board tested 0x4 resulted in a non-functioning i2c bus so stick with
0x1 which works.
Fixes: d7ae8f8dee7f ("pinctrl: mvebu: pinctrl driver for 98DX3236 SoC")
Signed-off-by: Chris Packham <chris.packham@xxxxxxxxxxxxxxxxxxx>
Reviewed-by: Andrew Lunn <andrew@xxxxxxx>
Link: https://lore.kernel.org/r/20200907211712.9697-2-chris.packham@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/pinctrl/mvebu/pinctrl-armada-xp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-xp.c b/drivers/pinctrl/mvebu/pinctrl-armada-xp.c
index a767a05fa3a0d..48e2a6c56a83b 100644
--- a/drivers/pinctrl/mvebu/pinctrl-armada-xp.c
+++ b/drivers/pinctrl/mvebu/pinctrl-armada-xp.c
@@ -414,7 +414,7 @@ static struct mvebu_mpp_mode mv98dx3236_mpp_modes[] = {
MPP_VAR_FUNCTION(0x1, "i2c0", "sck", V_98DX3236_PLUS)),
MPP_MODE(15,
MPP_VAR_FUNCTION(0x0, "gpio", NULL, V_98DX3236_PLUS),
- MPP_VAR_FUNCTION(0x4, "i2c0", "sda", V_98DX3236_PLUS)),
+ MPP_VAR_FUNCTION(0x1, "i2c0", "sda", V_98DX3236_PLUS)),
MPP_MODE(16,
MPP_VAR_FUNCTION(0x0, "gpo", NULL, V_98DX3236_PLUS),
MPP_VAR_FUNCTION(0x4, "dev", "oe", V_98DX3236_PLUS)),
--
2.25.1
