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authorSuraj Jitindar Singh <sjitindarsingh@gmail.com>2016-06-29 06:38:39 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2016-06-29 10:33:46 +0300
commit43a1dd9b5fc64184e578ac1570d016d2862e00b2 (patch)
tree8ea8da82abb2bc19746c804464571a38dea6126f /drivers/char/Kconfig
parentd0226d315dba5e401a124b394a1af5e35e082b08 (diff)
downloadlinux-43a1dd9b5fc64184e578ac1570d016d2862e00b2.tar.xz
powerpc/powernv: Add driver for operator panel on FSP machines
Implement new character device driver to allow access from user space to the operator panel display present on IBM Power Systems machines with FSPs. This will allow status information to be presented on the display which is visible to a user. The driver implements a character buffer which a user can read/write by accessing the device (/dev/op_panel). This buffer is then displayed on the operator panel display. Any attempt to write past the last character position will have no effect and attempts to write more characters than the size of the display will be truncated. The device may only be accessed by a single process at a time. Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com> Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers/char/Kconfig')
-rw-r--r--drivers/char/Kconfig14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 601f64fcc890..fdb8f3e10b6f 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -178,6 +178,20 @@ config IBM_BSR
of threads across a large system which avoids bouncing a cacheline
between several cores on a system
+config POWERNV_OP_PANEL
+ tristate "IBM POWERNV Operator Panel Display support"
+ depends on PPC_POWERNV
+ default m
+ help
+ If you say Y here, a special character device node, /dev/op_panel,
+ will be created which exposes the operator panel display on IBM
+ Power Systems machines with FSPs.
+
+ If you don't require access to the operator panel display from user
+ space, say N.
+
+ If unsure, say M here to build it as a module called powernv-op-panel.
+
source "drivers/char/ipmi/Kconfig"
config DS1620