From c2d2c7de972d7a08533bde622c36ff6feb112907 Mon Sep 17 00:00:00 2001 From: Alexander Shishkin Date: Thu, 1 Mar 2018 10:17:25 +0200 Subject: intel_th: Don't touch switch routing in host mode When the Trace Hub is operating in Host Debugger mode, it is up to the debugger to configure master routing even for the software sources. Do not do this in the driver in this case. Signed-off-by: Alexander Shishkin --- drivers/hwtracing/intel_th/core.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/hwtracing') diff --git a/drivers/hwtracing/intel_th/core.c b/drivers/hwtracing/intel_th/core.c index 8e4f5fd..d295b22 100644 --- a/drivers/hwtracing/intel_th/core.c +++ b/drivers/hwtracing/intel_th/core.c @@ -930,6 +930,10 @@ int intel_th_set_output(struct intel_th_device *thdev, struct intel_th_device *hub = to_intel_th_hub(thdev); struct intel_th_driver *hubdrv = to_intel_th_driver(hub->dev.driver); + /* In host mode, this is up to the external debugger, do nothing. */ + if (hub->host_mode) + return 0; + if (!hubdrv->set_output) return -ENOTSUPP; -- cgit v1.1