From 1cefedfe457ea7c738ab1c10ec88fd8a5632444a Mon Sep 17 00:00:00 2001 From: Gordon Hollingworth Date: Tue, 23 Jun 2015 09:53:40 +0100 Subject: [PATCH 080/203] Fix driver detection failure Check that the buffer response is non-zero meaning the touchscreen was detected --- drivers/input/touchscreen/rpi-ft5406.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/input/touchscreen/rpi-ft5406.c +++ b/drivers/input/touchscreen/rpi-ft5406.c @@ -184,7 +184,7 @@ static int ft5406_probe(struct platform_ bcm_mailbox_property(&request, sizeof(request)); - if(request.request_code == VCMSG_REQUEST_SUCCESSFUL) + if(request.request_code == VCMSG_REQUEST_SUCCESSFUL && request.tag.val != 0) { dev_dbg(&pdev->dev, "Got TS buffer 0x%x\n", request.tag.val); }