From 5cfb3c3a1013e7fca54c3624871755cdfd960b3b Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Mon, 6 Dec 2010 12:31:50 +1000 Subject: [PATCH] vga_switcheroo: make power switch handler optional At least on the nvidia mux the power switch seems to be executed by the ACPI PS0/PS3 methods so need to do it explicitly. Signed-off-by: Dave Airlie --- drivers/gpu/vga/vga_switcheroo.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/vga/vga_switcheroo.c b/drivers/gpu/vga/vga_switcheroo.c index 0a8678fe4d64..c3c213b74478 100644 --- a/drivers/gpu/vga/vga_switcheroo.c +++ b/drivers/gpu/vga/vga_switcheroo.c @@ -191,9 +191,8 @@ static int vga_switcheroo_debugfs_open(struct inode *inode, struct file *file) static int vga_switchon(struct vga_switcheroo_client *client) { - int ret; - - ret = vgasr_priv.handler->power_state(client->id, VGA_SWITCHEROO_ON); + if (vgasr_priv.handler->power_state) + vgasr_priv.handler->power_state(client->id, VGA_SWITCHEROO_ON); /* call the driver callback to turn on device */ client->set_gpu_state(client->pdev, VGA_SWITCHEROO_ON); client->pwr_state = VGA_SWITCHEROO_ON; @@ -204,7 +203,8 @@ static int vga_switchoff(struct vga_switcheroo_client *client) { /* call the driver callback to turn off device */ client->set_gpu_state(client->pdev, VGA_SWITCHEROO_OFF); - vgasr_priv.handler->power_state(client->id, VGA_SWITCHEROO_OFF); + if (vgasr_priv.handler->power_state) + vgasr_priv.handler->power_state(client->id, VGA_SWITCHEROO_OFF); client->pwr_state = VGA_SWITCHEROO_OFF; return 0; } -- 2.39.5