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Allow shutting down internal graphics if plugin graphics are preferred 

VGA is this part-legacy thing that can cause trouble...

For this, introduce device_t->disable(dev) method, in which a driver
can take care to deregister the device if necessary.

Change-Id: I3fecec07f402e530458b79eda30b2c274101fefa
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/1251
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Patrick Georgi 2012-07-20 12:29:33 +02:00 committed by Stefan Reinauer
parent c4b2a1b6de
commit 5869fa2e63
2 changed files with 9 additions and 0 deletions
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8
src/devices/device.c
View File

@ -762,6 +762,14 @@ static void set_vga_bridge_bits(void)
vga = vga_onboard;
}
/* If we prefer plugin VGA over chipset VGA, the chipset might
want to know. */
if (!CONFIG_ONBOARD_VGA_IS_PRIMARY && (vga != vga_onboard) &&
vga_onboard && vga_onboard->ops && vga_onboard->ops->disable) {
printk(BIOS_DEBUG, "Use plugin graphics over integrated.\n");
vga_onboard->ops->disable(vga_onboard);
}
if (vga) {
/* VGA is first add-on card or the only onboard VGA. */
printk(BIOS_DEBUG, "Setting up VGA for %s\n", dev_path(vga));

1
src/include/device/device.h
View File

@ -32,6 +32,7 @@ struct device_operations {
void (*init)(device_t dev);
unsigned int (*scan_bus)(device_t bus, unsigned int max);
void (*enable)(device_t dev);
void (*disable)(device_t dev);
void (*set_link)(device_t dev, unsigned int link);
void (*reset_bus)(struct bus *bus);
#if CONFIG_GENERATE_SMBIOS_TABLES