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authorIwona Winiarska <iwona.winiarska@intel.com>2022-02-08 18:36:33 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-02-09 10:04:44 +0300
commit42bed52b2e9cda0d5e2de50f10478c0bcedcdb95 (patch)
tree760f1e4540b51352365516cbba1909a44885c73b /drivers/peci/Makefile
parent52857e6828e260b16ac569578705f83cf2a71ac1 (diff)
downloadlinux-42bed52b2e9cda0d5e2de50f10478c0bcedcdb95.tar.xz
peci: Add sysfs interface for PECI bus
PECI devices may not be discoverable at the time when PECI controller is being added (e.g. BMC can boot up when the Host system is still in S5). Since we currently don't have the capabilities to figure out the Host system state inside the PECI subsystem itself, we have to rely on userspace to do it for us. In the future, PECI subsystem may be expanded with mechanisms that allow us to avoid depending on userspace interaction (e.g. CPU presence could be detected using GPIO, and the information on whether it's discoverable could be obtained over IPMI). Unfortunately, those methods may ultimately not be available (support will vary from platform to platform), which means that we still need platform independent method triggered by userspace. Acked-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com> Link: https://lore.kernel.org/r/20220208153639.255278-8-iwona.winiarska@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/peci/Makefile')
-rw-r--r--drivers/peci/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/peci/Makefile b/drivers/peci/Makefile
index c5f9d3fe21bb..917f689e147a 100644
--- a/drivers/peci/Makefile
+++ b/drivers/peci/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0-only
# Core functionality
-peci-y := core.o request.o device.o
+peci-y := core.o request.o device.o sysfs.o
obj-$(CONFIG_PECI) += peci.o
# Hardware specific bus drivers