pinctrl: samsung: Include bank-specific eint offset in bank struct

Some SoCs, like Exynos4x12, have non-sequential layout of EINT control
registers and so current way of calculating register addresses does not
work correctly for them.

This patch adds eint_offset field to samsung_pin_bank struct and
modifies the driver to use it instead of calculating the offsets from
bank index.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

3 files changed, 30 insertions, 29 deletions

diff --git a/drivers/pinctrl/pinctrl-exynos.c b/drivers/pinctrl/pinctrl-exynos.c
index 0ea2164bf6d9..bd9f1307a793 100644
--- a/drivers/pinctrl/pinctrl-exynos.c
+++ b/drivers/pinctrl/pinctrl-exynos.c
@@ -146,7 +146,7 @@ static struct exynos_geint_data *exynos_get_eint_data(irq_hw_number_t hw,
         struct samsung_pin_bank *bank = d->ctrl->pin_banks;
         struct exynos_geint_data *eint_data;
         unsigned int nr_banks = d->ctrl->nr_banks, idx;
-        unsigned int irq_base = 0, eint_offset = 0;
+        unsigned int irq_base = 0;
 
         if (hw >= d->ctrl->nr_gint) {
                 dev_err(d->dev, "unsupported ext-gpio interrupt\n");
@@ -159,7 +159,6 @@ static struct exynos_geint_data *exynos_get_eint_data(irq_hw_number_t hw,
                 if ((hw >= irq_base) && (hw < (irq_base + bank->nr_pins)))
                         break;
                 irq_base += bank->nr_pins;
-                eint_offset += 4;
         }
 
         if (idx == nr_banks) {
@@ -175,7 +174,7 @@ static struct exynos_geint_data *exynos_get_eint_data(irq_hw_number_t hw,
 
         eint_data->bank = bank;
         eint_data->pin = hw - irq_base;
-        eint_data->eint_offset = eint_offset;
+        eint_data->eint_offset = bank->eint_offset;
         return eint_data;
 }
 
@@ -484,35 +483,35 @@ static int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
 
 /* pin banks of exynos4210 pin-controller 0 */
 static struct samsung_pin_bank exynos4210_pin_banks0[] = {
-        EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpa0"),
-        EXYNOS_PIN_BANK_EINTG(6, 0x020, "gpa1"),
-        EXYNOS_PIN_BANK_EINTG(8, 0x040, "gpb"),
-        EXYNOS_PIN_BANK_EINTG(5, 0x060, "gpc0"),
-        EXYNOS_PIN_BANK_EINTG(5, 0x080, "gpc1"),
-        EXYNOS_PIN_BANK_EINTG(4, 0x0A0, "gpd0"),
-        EXYNOS_PIN_BANK_EINTG(4, 0x0C0, "gpd1"),
-        EXYNOS_PIN_BANK_EINTG(5, 0x0E0, "gpe0"),
-        EXYNOS_PIN_BANK_EINTG(8, 0x100, "gpe1"),
-        EXYNOS_PIN_BANK_EINTG(6, 0x120, "gpe2"),
-        EXYNOS_PIN_BANK_EINTG(8, 0x140, "gpe3"),
-        EXYNOS_PIN_BANK_EINTG(8, 0x160, "gpe4"),
-        EXYNOS_PIN_BANK_EINTG(8, 0x180, "gpf0"),
-        EXYNOS_PIN_BANK_EINTG(8, 0x1A0, "gpf1"),
-        EXYNOS_PIN_BANK_EINTG(8, 0x1C0, "gpf2"),
-        EXYNOS_PIN_BANK_EINTG(6, 0x1E0, "gpf3"),
+        EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpa0", 0x00),
+        EXYNOS_PIN_BANK_EINTG(6, 0x020, "gpa1", 0x04),
+        EXYNOS_PIN_BANK_EINTG(8, 0x040, "gpb", 0x08),
+        EXYNOS_PIN_BANK_EINTG(5, 0x060, "gpc0", 0x0c),
+        EXYNOS_PIN_BANK_EINTG(5, 0x080, "gpc1", 0x10),
+        EXYNOS_PIN_BANK_EINTG(4, 0x0A0, "gpd0", 0x14),
+        EXYNOS_PIN_BANK_EINTG(4, 0x0C0, "gpd1", 0x18),
+        EXYNOS_PIN_BANK_EINTG(5, 0x0E0, "gpe0", 0x1c),
+        EXYNOS_PIN_BANK_EINTG(8, 0x100, "gpe1", 0x20),
+        EXYNOS_PIN_BANK_EINTG(6, 0x120, "gpe2", 0x24),
+        EXYNOS_PIN_BANK_EINTG(8, 0x140, "gpe3", 0x28),
+        EXYNOS_PIN_BANK_EINTG(8, 0x160, "gpe4", 0x2c),
+        EXYNOS_PIN_BANK_EINTG(8, 0x180, "gpf0", 0x30),
+        EXYNOS_PIN_BANK_EINTG(8, 0x1A0, "gpf1", 0x34),
+        EXYNOS_PIN_BANK_EINTG(8, 0x1C0, "gpf2", 0x38),
+        EXYNOS_PIN_BANK_EINTG(6, 0x1E0, "gpf3", 0x3c),
 };
 
 /* pin banks of exynos4210 pin-controller 1 */
 static struct samsung_pin_bank exynos4210_pin_banks1[] = {
-        EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpj0"),
-        EXYNOS_PIN_BANK_EINTG(5, 0x020, "gpj1"),
-        EXYNOS_PIN_BANK_EINTG(7, 0x040, "gpk0"),
-        EXYNOS_PIN_BANK_EINTG(7, 0x060, "gpk1"),
-        EXYNOS_PIN_BANK_EINTG(7, 0x080, "gpk2"),
-        EXYNOS_PIN_BANK_EINTG(7, 0x0A0, "gpk3"),
-        EXYNOS_PIN_BANK_EINTG(8, 0x0C0, "gpl0"),
-        EXYNOS_PIN_BANK_EINTG(3, 0x0E0, "gpl1"),
-        EXYNOS_PIN_BANK_EINTG(8, 0x100, "gpl2"),
+        EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpj0", 0x00),
+        EXYNOS_PIN_BANK_EINTG(5, 0x020, "gpj1", 0x04),
+        EXYNOS_PIN_BANK_EINTG(7, 0x040, "gpk0", 0x08),
+        EXYNOS_PIN_BANK_EINTG(7, 0x060, "gpk1", 0x0c),
+        EXYNOS_PIN_BANK_EINTG(7, 0x080, "gpk2", 0x10),
+        EXYNOS_PIN_BANK_EINTG(7, 0x0A0, "gpk3", 0x14),
+        EXYNOS_PIN_BANK_EINTG(8, 0x0C0, "gpl0", 0x18),
+        EXYNOS_PIN_BANK_EINTG(3, 0x0E0, "gpl1", 0x1c),
+        EXYNOS_PIN_BANK_EINTG(8, 0x100, "gpl2", 0x20),
         EXYNOS_PIN_BANK_EINTN(6, 0x120, "gpy0"),
         EXYNOS_PIN_BANK_EINTN(4, 0x140, "gpy1"),
         EXYNOS_PIN_BANK_EINTN(6, 0x160, "gpy2"),
diff --git a/drivers/pinctrl/pinctrl-exynos.h b/drivers/pinctrl/pinctrl-exynos.h
index 2de4a2936e9c..5d8e380fbadf 100644
--- a/drivers/pinctrl/pinctrl-exynos.h
+++ b/drivers/pinctrl/pinctrl-exynos.h
@@ -59,7 +59,7 @@
                 .name           = id                    \
         }
 
-#define EXYNOS_PIN_BANK_EINTG(pins, reg, id)            \
+#define EXYNOS_PIN_BANK_EINTG(pins, reg, id, offs)      \
         {                                               \
                 .pctl_offset    = reg,                  \
                 .nr_pins        = pins,                 \
@@ -69,6 +69,7 @@
                 .conpdn_width   = 2,                    \
                 .pudpdn_width   = 2,                    \
                 .eint_type      = EINT_TYPE_GPIO,       \
+                .eint_offset    = offs,                 \
                 .name           = id                    \
         }
 
diff --git a/drivers/pinctrl/pinctrl-samsung.h b/drivers/pinctrl/pinctrl-samsung.h
index ea5dadd35913..d77d9bcc5d7d 100644
--- a/drivers/pinctrl/pinctrl-samsung.h
+++ b/drivers/pinctrl/pinctrl-samsung.h
@@ -124,6 +124,7 @@ struct samsung_pin_bank {
         u8              conpdn_width;
         u8              pudpdn_width;
         enum eint_type  eint_type;
+        u32             eint_offset;
         u32             irq_base;
         char            *name;
         struct device_node *of_node;