From e6d9da1de0f31c57cfe3837b1b4e51c6d96fcd3c Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Sat, 25 Aug 2007 02:23:31 -0400 Subject: [PATCH] ACPI: work around duplicate name "VID" problem on T61 This can only fix the problem that more than one video bus device have the same AML name "VID". ie. the proc I/F for the second "VID" video bus device is located under /proc/acpi/video/VID1/... As this is really rare and the ACPI proc I/F is a legacy feature that we are planning to remove. We won't provide a generic solution for this problem. Signed-off-by: Zhang Rui Signed-off-by: Len Brown --- drivers/acpi/video.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index d98701941981..ac63be4e8197 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -1833,6 +1833,7 @@ static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data) return; } +static int instance; static int acpi_video_bus_add(struct acpi_device *device) { int result = 0; @@ -1847,6 +1848,13 @@ static int acpi_video_bus_add(struct acpi_device *device) if (!video) return -ENOMEM; + /* a hack to fix the duplicate name "VID" problem on T61 */ + if (!strcmp(device->pnp.bus_id, "VID")) { + if (instance) + device->pnp.bus_id[3] = '0' + instance; + instance ++; + } + video->device = device; strcpy(acpi_device_name(device), ACPI_VIDEO_BUS_NAME); strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS); -- 2.20.1