diff options
Diffstat (limited to 'include/acpi/acpi_device.h')
| -rw-r--r-- | include/acpi/acpi_device.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/acpi/acpi_device.h b/include/acpi/acpi_device.h index e7db7bf5ad..5d94a88c02 100644 --- a/include/acpi/acpi_device.h +++ b/include/acpi/acpi_device.h @@ -384,4 +384,22 @@ int acpi_device_add_power_res(struct acpi_ctx *ctx, u32 tx_state_val, const struct gpio_desc *stop_gpio, uint stop_delay_ms, uint stop_off_delay_ms); +/** + * acpi_device_infer_name() - Infer the name from its uclass or parent + * + * Many ACPI devices have a standard name that can be inferred from the uclass + * they are in, or the uclass of their parent. These rules are implemented in + * this function. It attempts to produce a name for a device based on these + * rules. + * + * NOTE: This currently supports only x86 devices. Feel free to enhance it for + * other architectures as needed. + * + * @dev: Device to check + * @out_name: Place to put the name (must hold ACPI_NAME_MAX bytes) + * @return 0 if a name was found, -ENOENT if not found, -ENXIO if the device + * sequence number could not be determined + */ +int acpi_device_infer_name(const struct udevice *dev, char *out_name); + #endif |