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authorLinus Torvalds <torvalds@linux-foundation.org>2024-01-17 16:06:16 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2024-01-17 16:06:16 -0800
commita3f4a07b5027e88209a7f47f572d8eed126ca870 (patch)
treefe69f7c94433fef32d3b9f00b3f133f8d059fce7 /Documentation/ABI
parented6c23b175471d7bdecd06b5f37a0b1057c90cce (diff)
parent4fa0888f6f3e6a67cac5afafb23e33f8222cfdd0 (diff)
Merge tag 'i3c/for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux
Pull i3c updates from Alexandre Belloni: "We are continuing to see more fixes as hardware is available and code is actually getting tested. Core: - Add a sysfs control for hotjoin - Add fallback method for GETMXDS CCC Drivers: - cdns: fix prescale for i2c clock - mipi-i3c-hci: more fixes now that the driver is used - svc: hotjoin enabling/disabling support" * tag 'i3c/for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: i3c: document hotjoin sysfs entry i3c: master: fix kernel-doc check warning i3c: master: cdns: Update maximum prescaler value for i2c clock i3c: master: fix Excess kernel-doc description warning i3c: master: svc: return actual transfer data len i3c: master: svc: rename read_len as actual_len i3c: add actual_len in i3c_priv_xfer i3c: master: svc: add hot join support i3c: master: add enable(disable) hot join in sys entry i3c: master: Fix build error i3c: Add fallback method for GETMXDS CCC i3c: mipi-i3c-hci: Add DMA bounce buffer for private transfers i3c: mipi-i3c-hci: Handle I3C address header error in hci_cmd_v1_daa() i3c: mipi-i3c-hci: Do not overallocate transfers in hci_cmd_v1_daa() i3c: mipi-i3c-hci: Report NACK response from CCC command to core
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/testing/sysfs-bus-i3c15
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-i3c b/Documentation/ABI/testing/sysfs-bus-i3c
index e5248fd67a56..c812ab180ff4 100644
--- a/Documentation/ABI/testing/sysfs-bus-i3c
+++ b/Documentation/ABI/testing/sysfs-bus-i3c
@@ -88,6 +88,21 @@ Description:
This entry describes the HDRCAP of the master controller
driving the bus.
+What: /sys/bus/i3c/devices/i3c-<bus-id>/hotjoin
+KernelVersion: 6.8
+Contact: linux-i3c@vger.kernel.org
+Description:
+ I3C’s Hot-Join mechanism allows an I3C Device to inform the
+ Active Controller that a newly-joined Target is present on the
+ I3C Bus and is ready to receive a Dynamic Address, in order to
+ become fully functional on the Bus. Hot-Join is used when the
+ Target is mounted on the same I3C bus and remains depowered
+ until needed or until the Target is physically inserted into the
+ I3C bus
+
+ This entry allows to enable or disable Hot-join of the Current
+ Controller driving the bus.
+
What: /sys/bus/i3c/devices/i3c-<bus-id>/<bus-id>-<device-pid>
KernelVersion: 5.0
Contact: linux-i3c@vger.kernel.org