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authorMisono Tomohiro <misono.tomohiro@jp.fujitsu.com>2020-06-24 08:54:05 +0200
committerCorey Minyard <cminyard@mvista.com>2020-06-24 13:41:36 +0200
commitc8e0506f887a3ad257665451ba711dd5d4eef81c (patch)
tree0cb797f21981677b997cefab3b080e4e86848844 /Documentation/driver-api/ipmi.rst
parentscripts/decode_stacktrace: warn when modpath is needed but is unset (diff)
downloadlinux-c8e0506f887a3ad257665451ba711dd5d4eef81c.tar.xz
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Doc: driver-api: ipmi: Add description of alerts_broken module param
Add description about alerts_broken module parameter of ipmi_ssif driver which skips enabling SMBus alert during setup. Signed-off-by: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com> Message-Id: <20200624065405.17653-3-misono.tomohiro@jp.fujitsu.com> Signed-off-by: Corey Minyard <cminyard@mvista.com>
Diffstat (limited to 'Documentation/driver-api/ipmi.rst')
-rw-r--r--Documentation/driver-api/ipmi.rst4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/driver-api/ipmi.rst b/Documentation/driver-api/ipmi.rst
index 5ef1047e2e66..dfe7bb5c86cd 100644
--- a/Documentation/driver-api/ipmi.rst
+++ b/Documentation/driver-api/ipmi.rst
@@ -516,6 +516,7 @@ at module load time (for a module) with::
slave_addrs=<addr1>,<addr2>,...
tryacpi=[0|1] trydmi=[0|1]
[dbg_probe=1]
+ alerts_broken
The addresses are normal I2C addresses. The adapter is the string
name of the adapter, as shown in /sys/class/i2c-adapter/i2c-<n>/name.
@@ -537,6 +538,9 @@ The slave_addrs specifies the IPMI address of the local BMC. This is
usually 0x20 and the driver defaults to that, but in case it's not, it
can be specified when the driver starts up.
+alerts_broken does not enable SMBus alert for SSIF. Otherwise SMBus
+alert will be enabled on supported hardware.
+
Discovering the IPMI compliant BMC on the SMBus can cause devices on
the I2C bus to fail. The SMBus driver writes a "Get Device ID" IPMI
message as a block write to the I2C bus and waits for a response.