target/linux/brcm2708/patches-4.1/0080-Fix-driver-detection-failure-Check-that-the-buffer-r.patch

   1 From 94b88ebdb90e6b3ae6eca18355a2ff318041318f Mon Sep 17 00:00:00 2001
   2 From: Gordon Hollingworth <gordon@fiveninjas.com>
   3 Date: Tue, 23 Jun 2015 09:53:40 +0100
   4 Subject: [PATCH 080/148] Fix driver detection failure Check that the buffer
   5  response is non-zero meaning the touchscreen was detected
   6
   7 ---
   8  drivers/input/touchscreen/rpi-ft5406.c | 2 +-
   9  1 file changed, 1 insertion(+), 1 deletion(-)
  10
  11 --- a/drivers/input/touchscreen/rpi-ft5406.c
  12 +++ b/drivers/input/touchscreen/rpi-ft5406.c
  13 @@ -184,7 +184,7 @@ static int ft5406_probe(struct platform_
  14
  15         bcm_mailbox_property(&request, sizeof(request));
  16
  17 -       if(request.request_code == VCMSG_REQUEST_SUCCESSFUL)
  18 +       if(request.request_code == VCMSG_REQUEST_SUCCESSFUL && request.tag.val != 0)
  19         {
  20                 dev_dbg(&pdev->dev, "Got TS buffer 0x%x\n", request.tag.val);
  21         }