openwrt/target/linux/brcm2708/patches-4.1/0080-Fix-driver-detection-f...

22 lines
809 B
Diff

From 94b88ebdb90e6b3ae6eca18355a2ff318041318f Mon Sep 17 00:00:00 2001
From: Gordon Hollingworth <gordon@fiveninjas.com>
Date: Tue, 23 Jun 2015 09:53:40 +0100
Subject: [PATCH 080/148] 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);
}