Some SoCs, like Exynos4x12, have non-linear layout of EINT control
registers and so current way of calculating register addresses does not
work correctly for them.
This patch adds parsing of samsung,eint-offset property from bank nodes
and uses the read values instead of calculating the offsets from bank
index.
Signed-off-by: Tomasz Figa <t.figa@xxxxxxxxxxx>
---
drivers/pinctrl/pinctrl-exynos.c | 5 ++---
drivers/pinctrl/pinctrl-samsung.c | 5 +++++
drivers/pinctrl/pinctrl-samsung.h | 1 +
3 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/pinctrl/pinctrl-exynos.c b/drivers/pinctrl/pinctrl-exynos.c
index 134fecf..340bfc2 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;
}
diff --git a/drivers/pinctrl/pinctrl-samsung.c b/drivers/pinctrl/pinctrl-samsung.c
index e828a0e..962320b 100644
--- a/drivers/pinctrl/pinctrl-samsung.c
+++ b/drivers/pinctrl/pinctrl-samsung.c
@@ -859,6 +859,11 @@ static int samsung_pinctrl_parse_dt_bank(struct samsung_pin_bank *bank,
bank->eint_type = EINT_TYPE_GPIO;
+ ret = of_property_read_u32(np, "samsung,eint-offset", &val);
+ if (ret)
+ return ret;
+ bank->eint_offset = val;
+
return 0;
}
diff --git a/drivers/pinctrl/pinctrl-samsung.h b/drivers/pinctrl/pinctrl-samsung.h
index db1907c..72303f1 100644
--- a/drivers/pinctrl/pinctrl-samsung.h
+++ b/drivers/pinctrl/pinctrl-samsung.h
@@ -122,6 +122,7 @@ struct samsung_pin_bank {
u8 conpdn_width;
u8 pudpdn_width;
enum eint_type eint_type;
+ u32 eint_offset;
u32 irq_base;
const char *name;
};
--
1.7.12
--
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