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pinctrl: exynos: Add irq_chip instance for Exynos7 wakeup interrupts 

Exynos7 uses different offsets for wakeup interrupt configuration registers.
So a new irq_chip instance for Exynos7 wakeup interrupts is added. The irq_chip
selection is now based on the wakeup interrupt controller compatible string.

Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Reviewed-by: Thomas Abraham <thomas.ab@samsung.com>
Tested-by: Thomas Abraham <thomas.ab@samsung.com>
Acked-by: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
This commit is contained in:
Abhilash Kesavan 2014-10-09 19:24:31 +05:30 committed by Tomasz Figa
parent 6f5e41bd8f
commit 14c255d35b
3 changed files with 40 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Documentation/devicetree/bindings/pinctrl/samsung-pinctrl.txt
View File

@ -136,6 +136,8 @@ B. External Wakeup Interrupts: For supporting external wakeup interrupts, a
found on Samsung S3C64xx SoCs,
- samsung,exynos4210-wakeup-eint: represents wakeup interrupt controller
found on Samsung Exynos4210 and S5PC110/S5PV210 SoCs.
- samsung,exynos7-wakeup-eint: represents wakeup interrupt controller
found on Samsung Exynos7 SoC.
- interrupt-parent: phandle of the interrupt parent to which the external
wakeup interrupts are forwarded to.
- interrupts: interrupt used by multiplexed wakeup interrupts.

45
drivers/pinctrl/samsung/pinctrl-exynos.c
View File

@ -56,12 +56,6 @@ static const struct samsung_pin_bank_type bank_type_alive = {
.reg_offset = { 0x00, 0x04, 0x08, 0x0c, },
};
/* list of external wakeup controllers supported */
static const struct of_device_id exynos_wkup_irq_ids[] = {
{ .compatible = "samsung,exynos4210-wakeup-eint", },
{ }
};
static void exynos_irq_mask(struct irq_data *irqd)
{
struct irq_chip *chip = irq_data_get_irq_chip(irqd);
@ -384,9 +378,9 @@ static int exynos_wkup_irq_set_wake(struct irq_data *irqd, unsigned int on)
/*
* irq_chip for wakeup interrupts
*/
static struct exynos_irq_chip exynos_wkup_irq_chip = {
static struct exynos_irq_chip exynos4210_wkup_irq_chip __initdata = {
.chip = {
.name = "exynos_wkup_irq_chip",
.name = "exynos4210_wkup_irq_chip",
.irq_unmask = exynos_irq_unmask,
.irq_mask = exynos_irq_mask,
.irq_ack = exynos_irq_ack,
@ -400,6 +394,31 @@ static struct exynos_irq_chip exynos_wkup_irq_chip = {
.eint_pend = EXYNOS_WKUP_EPEND_OFFSET,
};
static struct exynos_irq_chip exynos7_wkup_irq_chip __initdata = {
.chip = {
.name = "exynos7_wkup_irq_chip",
.irq_unmask = exynos_irq_unmask,
.irq_mask = exynos_irq_mask,
.irq_ack = exynos_irq_ack,
.irq_set_type = exynos_irq_set_type,
.irq_set_wake = exynos_wkup_irq_set_wake,
.irq_request_resources = exynos_irq_request_resources,
.irq_release_resources = exynos_irq_release_resources,
},
.eint_con = EXYNOS7_WKUP_ECON_OFFSET,
.eint_mask = EXYNOS7_WKUP_EMASK_OFFSET,
.eint_pend = EXYNOS7_WKUP_EPEND_OFFSET,
};
/* list of external wakeup controllers supported */
static const struct of_device_id exynos_wkup_irq_ids[] = {
{ .compatible = "samsung,exynos4210-wakeup-eint",
.data = &exynos4210_wkup_irq_chip },
{ .compatible = "samsung,exynos7-wakeup-eint",
.data = &exynos7_wkup_irq_chip },
{ }
};
/* interrupt handler for wakeup interrupts 0..15 */
static void exynos_irq_eint0_15(unsigned int irq, struct irq_desc *desc)
{
@ -468,12 +487,18 @@ static int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
struct samsung_pin_bank *bank;
struct exynos_weint_data *weint_data;
struct exynos_muxed_weint_data *muxed_data;
struct exynos_irq_chip *irq_chip;
unsigned int muxed_banks = 0;
unsigned int i;
int idx, irq;
for_each_child_of_node(dev->of_node, np) {
if (of_match_node(exynos_wkup_irq_ids, np)) {
const struct of_device_id *match;
match = of_match_node(exynos_wkup_irq_ids, np);
if (match) {
irq_chip = kmemdup(match->data,
sizeof(*irq_chip), GFP_KERNEL);
wkup_np = np;
break;
}
@ -493,7 +518,7 @@ static int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
return -ENXIO;
}
bank->irq_chip = &exynos_wkup_irq_chip;
bank->irq_chip = irq_chip;
if (!of_find_property(bank->of_node, "interrupts", NULL)) {
bank->eint_type = EINT_TYPE_WKUP_MUX;

3
drivers/pinctrl/samsung/pinctrl-exynos.h
View File

@ -25,6 +25,9 @@
#define EXYNOS_WKUP_ECON_OFFSET 0xE00
#define EXYNOS_WKUP_EMASK_OFFSET 0xF00
#define EXYNOS_WKUP_EPEND_OFFSET 0xF40
#define EXYNOS7_WKUP_ECON_OFFSET 0x700
#define EXYNOS7_WKUP_EMASK_OFFSET 0x900
#define EXYNOS7_WKUP_EPEND_OFFSET 0xA00
#define EXYNOS_SVC_OFFSET 0xB08
#define EXYNOS_EINT_FUNC 0xF