[U-Boot] [PATCH] pinctrl: renesas: Fix DRV register offset

[Marek Vasut]

Use fixed 4bit size for generating the DRV register element mask,
not the size of the value, which can be smaller.

Signed-off-by: Marek Vasut <marek.vasut+renesas at gmail.com>
Cc: Masahiro Yamada <yamada.masahiro at socionext.com>
Cc: Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
---
 drivers/pinctrl/renesas/pfc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pinctrl/renesas/pfc.c b/drivers/pinctrl/renesas/pfc.c
index 90011537a8..b3a4ff9049 100644
--- a/drivers/pinctrl/renesas/pfc.c
+++ b/drivers/pinctrl/renesas/pfc.c
@@ -591,7 +591,7 @@ static int sh_pfc_pinconf_set_drive_strength(struct sh_pfc *pfc,
 	strength = strength / step - 1;
 
 	val = sh_pfc_read_raw_reg(reg, 32);
-	val &= ~GENMASK(offset + size - 1, offset);
+	val &= ~GENMASK(offset + 4 - 1, offset);
 	val |= strength << offset;
 
 	if (unlock_reg)
-- 
2.18.0