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authorPatrick Georgi <patrick.georgi@secunet.com>2012-07-20 12:29:33 +0200
committerStefan Reinauer <stefan.reinauer@coreboot.org>2012-07-20 23:38:51 +0200
commit5869fa2e631d5d2483a4ee0445e6496120b42f02 (patch)
tree8f52e069254f6f778194d2217908b568f1ed2a98
parentc4b2a1b6de9671a7e6672de5fb99068d05eba269 (diff)
downloadcoreboot-5869fa2e631d5d2483a4ee0445e6496120b42f02.tar.xz
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>
-rw-r--r--src/devices/device.c8
-rw-r--r--src/include/device/device.h1
2 files changed, 9 insertions, 0 deletions
diff --git a/src/devices/device.c b/src/devices/device.c
index d3f9b52cc4..de27e88496 100644
--- a/src/devices/device.c
+++ b/src/devices/device.c
@@ -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));
diff --git a/src/include/device/device.h b/src/include/device/device.h
index 819b789466..8cc937f94d 100644
--- a/src/include/device/device.h
+++ b/src/include/device/device.h
@@ -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