From e09b41010ba33a20a87472ee821fa407a5b8da36 Mon Sep 17 00:00:00 2001 From: José Pekkarinen Date: Mon, 11 Apr 2016 10:41:07 +0300 Subject: These changes are the raw update to linux-4.4.6-rt14. Kernel sources are taken from kernel.org, and rt patch from the rt wiki download page. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen --- .../ABI/testing/sysfs-class-fpga-manager | 37 ++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 kernel/Documentation/ABI/testing/sysfs-class-fpga-manager (limited to 'kernel/Documentation/ABI/testing/sysfs-class-fpga-manager') diff --git a/kernel/Documentation/ABI/testing/sysfs-class-fpga-manager b/kernel/Documentation/ABI/testing/sysfs-class-fpga-manager new file mode 100644 index 000000000..23056c532 --- /dev/null +++ b/kernel/Documentation/ABI/testing/sysfs-class-fpga-manager @@ -0,0 +1,37 @@ +What: /sys/class/fpga_manager//name +Date: August 2015 +KernelVersion: 4.3 +Contact: Alan Tull +Description: Name of low level fpga manager driver. + +What: /sys/class/fpga_manager//state +Date: August 2015 +KernelVersion: 4.3 +Contact: Alan Tull +Description: Read fpga manager state as a string. + The intent is to provide enough detail that if something goes + wrong during FPGA programming (something that the driver can't + fix) then userspace can know, i.e. if the firmware request + fails, that could be due to not being able to find the firmware + file. + + This is a superset of FPGA states and fpga manager driver + states. The fpga manager driver is walking through these steps + to get the FPGA into a known operating state. It's a sequence, + though some steps may get skipped. Valid FPGA states will vary + by manufacturer; this is a superset. + + * unknown = can't determine state + * power off = FPGA power is off + * power up = FPGA reports power is up + * reset = FPGA held in reset state + * firmware request = firmware class request in progress + * firmware request error = firmware request failed + * write init = preparing FPGA for programming + * write init error = Error while preparing FPGA for + programming + * write = FPGA ready to receive image data + * write error = Error while programming + * write complete = Doing post programming steps + * write complete error = Error while doing post programming + * operating = FPGA is programmed and operating -- cgit 1.2.3-korg