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| author | Suraj Jitindar Singh <sjitindarsingh@gmail.com> | 2016-06-29 05:38:39 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-06-29 09:33:46 +0200 |
| commit | 43a1dd9b5fc64184e578ac1570d016d2862e00b2 (patch) | |
| tree | 8ea8da82abb2bc19746c804464571a38dea6126f /drivers/char/Kconfig | |
| parent | powerpc/opal: Add inline function to get rc from an ASYNC_COMP opal_msg (diff) | |
| download | linux-43a1dd9b5fc64184e578ac1570d016d2862e00b2.tar.xz linux-43a1dd9b5fc64184e578ac1570d016d2862e00b2.zip | |
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/Kconfig | 14 |
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 |