diff options
| author | Simon Glass <sjg@chromium.org> | 2020-07-08 06:32:34 +0300 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2020-07-17 09:32:24 +0300 |
| commit | a8c2789c09681660bfdbda489e504d12b0ab74b5 (patch) | |
| tree | a4019c0f0b95195ba4460844cb27c55489a90e6a | |
| parent | 11e27ae92b1b7596a2ad5755be119c14e68895ac (diff) | |
| download | u-boot-a8c2789c09681660bfdbda489e504d12b0ab74b5.tar.xz | |
x86: irq: Support flags for acpi_gpe
This binding currently has a flags cell but it is not used. Make use of it
to create ACPI tables for interrupts.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
| -rw-r--r-- | arch/x86/cpu/acpi_gpe.c | 26 | ||||
| -rw-r--r-- | include/dt-bindings/interrupt-controller/x86-irq.h | 14 |
2 files changed, 40 insertions, 0 deletions
diff --git a/arch/x86/cpu/acpi_gpe.c b/arch/x86/cpu/acpi_gpe.c index 8aa2009bd6..70badb15a3 100644 --- a/arch/x86/cpu/acpi_gpe.c +++ b/arch/x86/cpu/acpi_gpe.c @@ -8,7 +8,10 @@ #include <dm.h> #include <irq.h> #include <log.h> +#include <acpi/acpi_device.h> #include <asm/io.h> +#include <dt-bindings/interrupt-controller/irq.h> +#include <dt-bindings/interrupt-controller/x86-irq.h> /** * struct acpi_gpe_priv - private driver information @@ -62,13 +65,36 @@ static int acpi_gpe_ofdata_to_platdata(struct udevice *dev) static int acpi_gpe_of_xlate(struct irq *irq, struct ofnode_phandle_args *args) { irq->id = args->args[0]; + irq->flags = args->args[1]; return 0; } +#if CONFIG_IS_ENABLED(ACPIGEN) +static int acpi_gpe_get_acpi(const struct irq *irq, struct acpi_irq *acpi_irq) +{ + memset(acpi_irq, '\0', sizeof(*acpi_irq)); + acpi_irq->pin = irq->id; + acpi_irq->mode = irq->flags & IRQ_TYPE_EDGE_BOTH ? + ACPI_IRQ_EDGE_TRIGGERED : ACPI_IRQ_LEVEL_TRIGGERED; + acpi_irq->polarity = irq->flags & + (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_LEVEL_LOW) ? + ACPI_IRQ_ACTIVE_LOW : ACPI_IRQ_ACTIVE_HIGH; + acpi_irq->shared = irq->flags & X86_IRQ_TYPE_SHARED ? + ACPI_IRQ_SHARED : ACPI_IRQ_EXCLUSIVE; + acpi_irq->wake = irq->flags & X86_IRQ_TYPE_WAKE ? ACPI_IRQ_WAKE : + ACPI_IRQ_NO_WAKE; + + return 0; +} +#endif + static const struct irq_ops acpi_gpe_ops = { .read_and_clear = acpi_gpe_read_and_clear, .of_xlate = acpi_gpe_of_xlate, +#if CONFIG_IS_ENABLED(ACPIGEN) + .get_acpi = acpi_gpe_get_acpi, +#endif }; static const struct udevice_id acpi_gpe_ids[] = { diff --git a/include/dt-bindings/interrupt-controller/x86-irq.h b/include/dt-bindings/interrupt-controller/x86-irq.h new file mode 100644 index 0000000000..9e0b4612e1 --- /dev/null +++ b/include/dt-bindings/interrupt-controller/x86-irq.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright 2019 Google LLC + * + * This provides additional flags used by x86. + */ + +#ifndef _DT_BINDINGS_INTERRUPT_CONTROLLER_X86_IRQ_H +#define _DT_BINDINGS_INTERRUPT_CONTROLLER_X86_IRQ_H + +#define X86_IRQ_TYPE_SHARED (1 << 4) +#define X86_IRQ_TYPE_WAKE (1 << 5) + +#endif |