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Message-ID: <bf8367bddfdc95e378b5725c732533c3ba20d388.1721630625.git.mchehab+huawei@kernel.org>
Date: Mon, 22 Jul 2024 08:45:53 +0200
From: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To:
Cc: Jonathan Cameron <Jonathan.Cameron@...wei.com>,
Shiju Jose <shiju.jose@...wei.com>,
Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
"Michael S. Tsirkin" <mst@...hat.com>,
Ani Sinha <anisinha@...hat.com>,
Igor Mammedov <imammedo@...hat.com>,
Peter Maydell <peter.maydell@...aro.org>,
Shannon Zhao <shannon.zhaosl@...il.com>,
linux-kernel@...r.kernel.org,
qemu-arm@...gnu.org,
qemu-devel@...gnu.org
Subject: [PATCH v3 1/7] arm/virt: place power button pin number on a define
Having magic numbers inside the code is not a good idea, as it
is error-prone. So, instead, create a macro with the number
definition.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
---
hw/arm/virt-acpi-build.c | 6 +++---
hw/arm/virt.c | 7 ++++---
include/hw/arm/virt.h | 3 +++
3 files changed, 10 insertions(+), 6 deletions(-)
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index e10cad86dd73..f76fb117adff 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -154,10 +154,10 @@ static void acpi_dsdt_add_gpio(Aml *scope, const MemMapEntry *gpio_memmap,
aml_append(dev, aml_name_decl("_CRS", crs));
Aml *aei = aml_resource_template();
- /* Pin 3 for power button */
- const uint32_t pin_list[1] = {3};
+
+ const uint32_t pin = GPIO_PIN_POWER_BUTTON;
aml_append(aei, aml_gpio_int(AML_CONSUMER, AML_EDGE, AML_ACTIVE_HIGH,
- AML_EXCLUSIVE, AML_PULL_UP, 0, pin_list, 1,
+ AML_EXCLUSIVE, AML_PULL_UP, 0, &pin, 1,
"GPO0", NULL, 0));
aml_append(dev, aml_name_decl("_AEI", aei));
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index b0c68d66a345..c99c8b1713c6 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -1004,7 +1004,7 @@ static void virt_powerdown_req(Notifier *n, void *opaque)
if (s->acpi_dev) {
acpi_send_event(s->acpi_dev, ACPI_POWER_DOWN_STATUS);
} else {
- /* use gpio Pin 3 for power button event */
+ /* use gpio Pin for power button event */
qemu_set_irq(qdev_get_gpio_in(gpio_key_dev, 0), 1);
}
}
@@ -1013,7 +1013,8 @@ static void create_gpio_keys(char *fdt, DeviceState *pl061_dev,
uint32_t phandle)
{
gpio_key_dev = sysbus_create_simple("gpio-key", -1,
- qdev_get_gpio_in(pl061_dev, 3));
+ qdev_get_gpio_in(pl061_dev,
+ GPIO_PIN_POWER_BUTTON));
qemu_fdt_add_subnode(fdt, "/gpio-keys");
qemu_fdt_setprop_string(fdt, "/gpio-keys", "compatible", "gpio-keys");
@@ -1024,7 +1025,7 @@ static void create_gpio_keys(char *fdt, DeviceState *pl061_dev,
qemu_fdt_setprop_cell(fdt, "/gpio-keys/poweroff", "linux,code",
KEY_POWER);
qemu_fdt_setprop_cells(fdt, "/gpio-keys/poweroff",
- "gpios", phandle, 3, 0);
+ "gpios", phandle, GPIO_PIN_POWER_BUTTON, 0);
}
#define SECURE_GPIO_POWEROFF 0
diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h
index ab961bb6a9b8..a4d937ed45ac 100644
--- a/include/hw/arm/virt.h
+++ b/include/hw/arm/virt.h
@@ -47,6 +47,9 @@
/* See Linux kernel arch/arm64/include/asm/pvclock-abi.h */
#define PVTIME_SIZE_PER_CPU 64
+/* GPIO pins */
+#define GPIO_PIN_POWER_BUTTON 3
+
enum {
VIRT_FLASH,
VIRT_MEM,
--
2.45.2
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