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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>
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3 changed files with 40 additions and 10 deletions
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@ -136,6 +136,8 @@ B. External Wakeup Interrupts: For supporting external wakeup interrupts, a
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found on Samsung S3C64xx SoCs,
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- samsung,exynos4210-wakeup-eint: represents wakeup interrupt controller
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found on Samsung Exynos4210 and S5PC110/S5PV210 SoCs.
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- samsung,exynos7-wakeup-eint: represents wakeup interrupt controller
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found on Samsung Exynos7 SoC.
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- interrupt-parent: phandle of the interrupt parent to which the external
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wakeup interrupts are forwarded to.
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- interrupts: interrupt used by multiplexed wakeup interrupts.
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@ -56,12 +56,6 @@ static const struct samsung_pin_bank_type bank_type_alive = {
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.reg_offset = { 0x00, 0x04, 0x08, 0x0c, },
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};
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/* list of external wakeup controllers supported */
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static const struct of_device_id exynos_wkup_irq_ids[] = {
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{ .compatible = "samsung,exynos4210-wakeup-eint", },
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{ }
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};
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static void exynos_irq_mask(struct irq_data *irqd)
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{
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struct irq_chip *chip = irq_data_get_irq_chip(irqd);
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@ -384,9 +378,9 @@ static int exynos_wkup_irq_set_wake(struct irq_data *irqd, unsigned int on)
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/*
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* irq_chip for wakeup interrupts
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*/
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static struct exynos_irq_chip exynos_wkup_irq_chip = {
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static struct exynos_irq_chip exynos4210_wkup_irq_chip __initdata = {
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.chip = {
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.name = "exynos_wkup_irq_chip",
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.name = "exynos4210_wkup_irq_chip",
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.irq_unmask = exynos_irq_unmask,
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.irq_mask = exynos_irq_mask,
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.irq_ack = exynos_irq_ack,
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@ -400,6 +394,31 @@ static struct exynos_irq_chip exynos_wkup_irq_chip = {
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.eint_pend = EXYNOS_WKUP_EPEND_OFFSET,
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};
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static struct exynos_irq_chip exynos7_wkup_irq_chip __initdata = {
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.chip = {
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.name = "exynos7_wkup_irq_chip",
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.irq_unmask = exynos_irq_unmask,
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.irq_mask = exynos_irq_mask,
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.irq_ack = exynos_irq_ack,
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.irq_set_type = exynos_irq_set_type,
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.irq_set_wake = exynos_wkup_irq_set_wake,
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.irq_request_resources = exynos_irq_request_resources,
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.irq_release_resources = exynos_irq_release_resources,
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},
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.eint_con = EXYNOS7_WKUP_ECON_OFFSET,
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.eint_mask = EXYNOS7_WKUP_EMASK_OFFSET,
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.eint_pend = EXYNOS7_WKUP_EPEND_OFFSET,
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};
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/* list of external wakeup controllers supported */
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static const struct of_device_id exynos_wkup_irq_ids[] = {
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{ .compatible = "samsung,exynos4210-wakeup-eint",
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.data = &exynos4210_wkup_irq_chip },
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{ .compatible = "samsung,exynos7-wakeup-eint",
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.data = &exynos7_wkup_irq_chip },
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{ }
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};
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/* interrupt handler for wakeup interrupts 0..15 */
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static void exynos_irq_eint0_15(unsigned int irq, struct irq_desc *desc)
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{
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@ -468,12 +487,18 @@ static int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
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struct samsung_pin_bank *bank;
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struct exynos_weint_data *weint_data;
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struct exynos_muxed_weint_data *muxed_data;
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struct exynos_irq_chip *irq_chip;
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unsigned int muxed_banks = 0;
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unsigned int i;
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int idx, irq;
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for_each_child_of_node(dev->of_node, np) {
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if (of_match_node(exynos_wkup_irq_ids, np)) {
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const struct of_device_id *match;
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match = of_match_node(exynos_wkup_irq_ids, np);
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if (match) {
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irq_chip = kmemdup(match->data,
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sizeof(*irq_chip), GFP_KERNEL);
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wkup_np = np;
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break;
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}
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@ -493,7 +518,7 @@ static int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
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return -ENXIO;
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}
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bank->irq_chip = &exynos_wkup_irq_chip;
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bank->irq_chip = irq_chip;
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if (!of_find_property(bank->of_node, "interrupts", NULL)) {
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bank->eint_type = EINT_TYPE_WKUP_MUX;
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@ -25,6 +25,9 @@
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#define EXYNOS_WKUP_ECON_OFFSET 0xE00
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#define EXYNOS_WKUP_EMASK_OFFSET 0xF00
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#define EXYNOS_WKUP_EPEND_OFFSET 0xF40
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#define EXYNOS7_WKUP_ECON_OFFSET 0x700
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#define EXYNOS7_WKUP_EMASK_OFFSET 0x900
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#define EXYNOS7_WKUP_EPEND_OFFSET 0xA00
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#define EXYNOS_SVC_OFFSET 0xB08
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#define EXYNOS_EINT_FUNC 0xF
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