diff options
| author | Tomasz Figa <t.figa@samsung.com> | 2012-09-21 02:33:48 +0400 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2012-09-21 02:33:48 +0400 |
| commit | ee2f573c4206ff3c4dbff2296c8d383d045c80a2 (patch) | |
| tree | 1ce7b96feeb3e2afe709470de9db6cf4144c33d1 /drivers/pinctrl | |
| parent | 011527b45f8e3092e1f3192e5aea94187a6ca269 (diff) | |
| download | linux-ee2f573c4206ff3c4dbff2296c8d383d045c80a2.tar.xz | |
pinctrl: exynos: Set pin function to EINT in irq_set_type of GPIO EINTa
Pins used as GPIO interrupts need to be configured as EINTs. This patch
adds the required configuration code to exynos_gpio_irq_set_type,
to set the pin as EINT when its interrupt trigger is configured.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/pinctrl-exynos.c | 12 | ||||
| -rw-r--r-- | drivers/pinctrl/pinctrl-exynos.h | 1 |
2 files changed, 13 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-exynos.c b/drivers/pinctrl/pinctrl-exynos.c index 447818d9851b..c2fa85f18764 100644 --- a/drivers/pinctrl/pinctrl-exynos.c +++ b/drivers/pinctrl/pinctrl-exynos.c @@ -76,9 +76,11 @@ static int exynos_gpio_irq_set_type(struct irq_data *irqd, unsigned int type) struct samsung_pinctrl_drv_data *d = irqd->domain->host_data; struct samsung_pin_ctrl *ctrl = d->ctrl; struct exynos_geint_data *edata = irq_data_get_irq_handler_data(irqd); + struct samsung_pin_bank *bank = edata->bank; unsigned int shift = EXYNOS_EINT_CON_LEN * edata->pin; unsigned int con, trig_type; unsigned long reg_con = ctrl->geint_con + edata->eint_offset; + unsigned int mask; switch (type) { case IRQ_TYPE_EDGE_RISING: @@ -110,6 +112,16 @@ static int exynos_gpio_irq_set_type(struct irq_data *irqd, unsigned int type) con &= ~(EXYNOS_EINT_CON_MASK << shift); con |= trig_type << shift; writel(con, d->virt_base + reg_con); + + reg_con = bank->pctl_offset; + shift = edata->pin * bank->func_width; + mask = (1 << bank->func_width) - 1; + + con = readl(d->virt_base + reg_con); + con &= ~(mask << shift); + con |= EXYNOS_EINT_FUNC << shift; + writel(con, d->virt_base + reg_con); + return 0; } diff --git a/drivers/pinctrl/pinctrl-exynos.h b/drivers/pinctrl/pinctrl-exynos.h index 5f27ba974a3a..31d0a06174e4 100644 --- a/drivers/pinctrl/pinctrl-exynos.h +++ b/drivers/pinctrl/pinctrl-exynos.h @@ -144,6 +144,7 @@ enum exynos4210_gpio_xc_start { #define EXYNOS_WKUP_EMASK_OFFSET 0xF00 #define EXYNOS_WKUP_EPEND_OFFSET 0xF40 #define EXYNOS_SVC_OFFSET 0xB08 +#define EXYNOS_EINT_FUNC 0xF /* helpers to access interrupt service register */ #define EXYNOS_SVC_GROUP_SHIFT 3 |