pinctrl: samsung: Handle banks with two configuration registers

This patch adds support for banks that have more than one function
configuration registers, e.g. some of the banks of S3C64xx SoCs.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/pinctrl-samsung.c b/drivers/pinctrl/pinctrl-samsung.c
index b917ed3..8b15c66 100644 (file)
--- a/drivers/pinctrl/pinctrl-samsung.c
+++ b/drivers/pinctrl/pinctrl-samsung.c
@@ -303,6 +303,11 @@ static void samsung_pinmux_setup(struct pinctrl_dev *pctldev, unsigned selector,
                type = bank->type;
                mask = (1 << type->fld_width[PINCFG_TYPE_FUNC]) - 1;
                shift = pin_offset * type->fld_width[PINCFG_TYPE_FUNC];
+               if (shift >= 32) {
+                       /* Some banks have two config registers */
+                       shift -= 32;
+                       reg += 4;
+               }
 
                spin_lock_irqsave(&bank->slock, flags);
 
@@ -356,6 +361,11 @@ static int samsung_pinmux_gpio_set_direction(struct pinctrl_dev *pctldev,
 
        mask = (1 << type->fld_width[PINCFG_TYPE_FUNC]) - 1;
        shift = pin_offset * type->fld_width[PINCFG_TYPE_FUNC];
+       if (shift >= 32) {
+               /* Some banks have two config registers */
+               shift -= 32;
+               reg += 4;
+       }
 
        spin_lock_irqsave(&bank->slock, flags);