[PATCH v1 8/8] pinctrl: npcm8xx: fix debounce register selection

[Tomer Maimon <tmaimon77@gmail.com>]

Each DBNCS register programs debounce source selection for 16 GPIOs.
The current offset calculation advances the register address every four
GPIOs, so offsets 4-15 and 20-31 end up touching the wrong selector
register.

Advance the DBNCS offset per 16 GPIOs so each line uses the debounce
selector bank that matches the hardware layout.

Signed-off-by: Tomer Maimon <tmaimon77@gmail.com>
---
 drivers/pinctrl/nuvoton/pinctrl-npcm8xx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/nuvoton/pinctrl-npcm8xx.c b/drivers/pinctrl/nuvoton/pinctrl-npcm8xx.c
index f94494b67..f9107f819 100644
--- a/drivers/pinctrl/nuvoton/pinctrl-npcm8xx.c
+++ b/drivers/pinctrl/nuvoton/pinctrl-npcm8xx.c
@@ -2211,7 +2211,8 @@ static const struct pinmux_ops npcm8xx_pinmux_ops = {
 static int debounce_timing_setting(struct npcm8xx_gpio *bank, u32 gpio,
 				   u32 nanosecs)
 {
-	void __iomem *DBNCS_offset = bank->base + NPCM8XX_GP_N_DBNCS0 + (gpio / 4);
+	void __iomem *DBNCS_offset = bank->base + NPCM8XX_GP_N_DBNCS0 +
+				     (gpio / 16) * 4;
 	int gpio_debounce = (gpio % 16) * 2, debounce_select, i;
 	u32 dbncp_val, dbncp_val_mod;
 
-- 
2.34.1