[PATCH v9 4/7] staging: fpga manager: add sysfs interface document

[<atull@opensource.altera.com>]

From: Alan Tull <atull@opensource.altera.com>

Add documentation under drivers/staging for new fpga manager's
sysfs interface.

Signed-off-by: Alan Tull <atull@opensource.altera.com>
---
v5  : (actually second version, but keeping version numbers
      aligned with rest of patch series)
      Move document to drivers/staging/fpga/Documentation/ABI

v6  : No change in this patch for v6 of the patch set

v7  : No change in this patch for v7 of the patch set

v8  : No change in this patch for v8 of the patch set

v9  : Remove 'firmware' and 'reset' files
      Update state strings
---
 .../Documentation/ABI/sysfs-class-fpga-manager     |   26 ++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 drivers/staging/fpga/Documentation/ABI/sysfs-class-fpga-manager

diff --git a/drivers/staging/fpga/Documentation/ABI/sysfs-class-fpga-manager b/drivers/staging/fpga/Documentation/ABI/sysfs-class-fpga-manager
new file mode 100644
index 0000000..470905e
--- /dev/null
+++ b/drivers/staging/fpga/Documentation/ABI/sysfs-class-fpga-manager
@@ -0,0 +1,26 @@
+What:		/sys/class/fpga_manager/<fpga>/name
+Date:		July 2015
+KernelVersion:	4.2
+Contact:	Alan Tull <atull@opensource.altera.com>
+Description:	Name of low level fpga manager driver.
+
+What:		/sys/class/fpga_manager/<fpga>/state
+Date:		July 2015
+KernelVersion:	4.2
+Contact:	Alan Tull <atull@opensource.altera.com>
+Description:	Read fpga manager state as a string.
+		Valid states may vary by manufacturer; superset is:
+		* 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		= FPGA being prepared 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
-- 
1.7.9.5