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authorDave Airlie <airlied@redhat.com>2010-12-06 23:57:57 +0100
committerDave Airlie <airlied@redhat.com>2011-01-05 04:44:07 +0100
commit8d608aa6295242fe4c4b6105b8c59c6a5b232d89 (patch)
tree89205a1d839b0b002ec58d7988c2bebea7d8efc8 /drivers/gpu/vga
parentnouveau/acpi: improve detection of what is IGD and what is DIS. (diff)
downloadlinux-8d608aa6295242fe4c4b6105b8c59c6a5b232d89.tar.xz
linux-8d608aa6295242fe4c4b6105b8c59c6a5b232d89.zip
vga_switcheroo: add reprobe hook for fbcon to recheck connected outputs.
This adds a hook after the mux is switched for the driver to reprobe the connected outputs. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/vga')
-rw-r--r--drivers/gpu/vga/vga_switcheroo.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/vga/vga_switcheroo.c b/drivers/gpu/vga/vga_switcheroo.c
index 463691a1650e..2b8e1d25e8d0 100644
--- a/drivers/gpu/vga/vga_switcheroo.c
+++ b/drivers/gpu/vga/vga_switcheroo.c
@@ -33,6 +33,7 @@ struct vga_switcheroo_client {
struct fb_info *fb_info;
int pwr_state;
void (*set_gpu_state)(struct pci_dev *pdev, enum vga_switcheroo_state);
+ void (*reprobe)(struct pci_dev *pdev);
bool (*can_switch)(struct pci_dev *pdev);
int id;
bool active;
@@ -103,6 +104,7 @@ static void vga_switcheroo_enable(void)
int vga_switcheroo_register_client(struct pci_dev *pdev,
void (*set_gpu_state)(struct pci_dev *pdev, enum vga_switcheroo_state),
+ void (*reprobe)(struct pci_dev *pdev),
bool (*can_switch)(struct pci_dev *pdev))
{
int index;
@@ -117,6 +119,7 @@ int vga_switcheroo_register_client(struct pci_dev *pdev,
vgasr_priv.clients[index].pwr_state = VGA_SWITCHEROO_ON;
vgasr_priv.clients[index].pdev = pdev;
vgasr_priv.clients[index].set_gpu_state = set_gpu_state;
+ vgasr_priv.clients[index].reprobe = reprobe;
vgasr_priv.clients[index].can_switch = can_switch;
vgasr_priv.clients[index].id = -1;
if (pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW)
@@ -251,6 +254,9 @@ static int vga_switchto(struct vga_switcheroo_client *new_client)
if (ret)
return ret;
+ if (new_client->reprobe)
+ new_client->reprobe(new_client->pdev);
+
if (active->pwr_state == VGA_SWITCHEROO_ON)
vga_switchoff(active);