diff options
| author | Takashi Iwai | 2012-06-07 12:15:15 +0200 |
|---|---|---|
| committer | Takashi Iwai | 2012-06-08 11:24:12 +0200 |
| commit | c8e9cf7bb240049117d2fa64d1540476c289396d (patch) | |
| tree | ccd86aa58f08cde50dcc0da35d2ea4b745d99abd /drivers/gpu/vga | |
| parent | 8260ef075bd9848ce6a8004ec73b7454d410cc15 (diff) | |
vga_switcheroo: Add a helper function to get the client state
Add vga_switcheroo_get_client_state() to get the current state of the
client. This is necessary to determine the proper initial state of
audio clients in HD-audio driver.
Acked-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'drivers/gpu/vga')
| -rw-r--r-- | drivers/gpu/vga/vga_switcheroo.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/vga/vga_switcheroo.c b/drivers/gpu/vga/vga_switcheroo.c index 38f9534ac513..eb4f64f0a565 100644 --- a/drivers/gpu/vga/vga_switcheroo.c +++ b/drivers/gpu/vga/vga_switcheroo.c @@ -190,6 +190,19 @@ find_active_client(struct list_head *head) return NULL; } +int vga_switcheroo_get_client_state(struct pci_dev *pdev) +{ + struct vga_switcheroo_client *client; + + client = find_client_from_pci(&vgasr_priv.clients, pdev); + if (!client) + return VGA_SWITCHEROO_NOT_FOUND; + if (!vgasr_priv.active) + return VGA_SWITCHEROO_INIT; + return client->pwr_state; +} +EXPORT_SYMBOL(vga_switcheroo_get_client_state); + void vga_switcheroo_unregister_client(struct pci_dev *pdev) { struct vga_switcheroo_client *client; |