[PATCH] gpio Add my driver new id

From: Richard Hsu
Date: Fri Dec 03 2021 - 04:26:55 EST


drivers/gpio/gpio-amdpt.c | 12 ++++++++++--
1 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/gpio-amdpt.c b/drivers/gpio/gpio-amdpt.c
index bbf53e289141..4d01d4341a67 100644
--- a/drivers/gpio/gpio-amdpt.c
+++ b/drivers/gpio/gpio-amdpt.c
@@ -14,6 +14,7 @@
#include <linux/platform_device.h>

#define PT_TOTAL_GPIO 8
+#define PT_TOTAL_GPIO_EX 24

/* PCI-E MMIO register offsets */
#define PT_DIRECTION_REG 0x00
@@ -72,10 +73,12 @@ static void pt_gpio_free(struct gpio_chip *gc, unsigned offset)
static int pt_gpio_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
+ struct acpi_device *acpi_dev;
+ acpi_handle handle = ACPI_HANDLE(dev);
struct pt_gpio_chip *pt_gpio;
int ret = 0;

- if (!ACPI_COMPANION(dev)) {
+ if (acpi_bus_get_device(handle, &acpi_dev)) {
dev_err(dev, "PT GPIO device node not found\n");
return -ENODEV;
}
@@ -100,10 +103,14 @@ static int pt_gpio_probe(struct platform_device *pdev)
return ret;
}

+ if (!strncmp(acpi_dev_name(acpi_dev), "AMDIF031", 8))
+ pt_gpio->gc.ngpio = PT_TOTAL_GPIO_EX;
+ else
+ pt_gpio->gc.ngpio = PT_TOTAL_GPIO;
+
pt_gpio->gc.owner = THIS_MODULE;
pt_gpio->gc.request = pt_gpio_request;
pt_gpio->gc.free = pt_gpio_free;
- pt_gpio->gc.ngpio = PT_TOTAL_GPIO;
#if defined(CONFIG_OF_GPIO)
pt_gpio->gc.of_node = dev->of_node;
#endif
@@ -135,6 +142,7 @@ static int pt_gpio_remove(struct platform_device *pdev)
static const struct acpi_device_id pt_gpio_acpi_match[] = {
{ "AMDF030", 0 },
{ "AMDIF030", 0 },
+ { "AMDIF031", 0 },
{ },
};
MODULE_DEVICE_TABLE(acpi, pt_gpio_acpi_match);
--
2.30.2