SMBIOS: Allow skipping default SMBIOS generation

The call to the `get_smbios_data` device operation is followed by
calls to unconditional default functions, which lacks flexibility.
Instead, have devices that implement `get_smbios_data` call these
default functions as needed.

Most `get_smbios_data` implementations are in mainboard code, and are
bound to the root device. The default functions only operate with PCI
devices because of the `dev->path.type != DEVICE_PATH_PCI` checks, so
calling these functions for non-PCI devices is unnecessary. QEMU also
implements `get_smbios_data` but binds it to the domain device, which
isn't PCI either.

Change-Id: Iefbf072b1203d04a98c9d26a30f22cfebe769eb4
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57366
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/include/smbios.h b/src/include/smbios.h
index 0f1386a963..0b24c15413 100644
--- a/src/include/smbios.h
+++ b/src/include/smbios.h
@@ -35,6 +35,9 @@ int smbios_write_type41(unsigned long *current, int *handle,
 			const char *name, u8 instance, u16 segment,
 			u8 bus, u8 device, u8 function, u8 device_type);
 
+struct device;
+int get_smbios_data(struct device *dev, int *handle, unsigned long *current);
+
 const char *smbios_system_manufacturer(void);
 const char *smbios_system_product_name(void);
 const char *smbios_system_serial_number(void);