linux/drivers/i3c/master
Adrian Hunter 0e5806ef45 i3c: mipi-i3c-hci: Reset RING_OPERATION1 fields during init
[ Upstream commit 78f63ae4a8 ]

The MIPI I3C HCI specification does not define reset values for
RING_OPERATION1 fields, and some controllers (e.g., Intel) do not clear
them during a software reset.  Ensure the ring pointers are explicitly
set to zero during bus initialization to avoid inconsistent state.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260113072702.16268-2-adrian.hunter@intel.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2026-03-04 07:19:30 -05:00
..
mipi-i3c-hci i3c: mipi-i3c-hci: Reset RING_OPERATION1 fields during init 2026-03-04 07:19:30 -05:00
adi-i3c-master.c i3c: master: adi: fix number of bytes written to fifo 2025-09-29 00:11:59 +02:00
ast2600-i3c-master.c Get rid of 'remove_new' relic from platform driver struct 2024-12-01 15:12:43 -08:00
dw-i3c-master.c i3c: dw: Fix memory leak in dw_i3c_master_i2c_xfers() 2026-02-26 14:58:58 -08:00
dw-i3c-master.h i3c: dw: Add quirk to address OD/PP timing issue on AMD platform 2024-11-18 14:27:29 +01:00
i3c-master-cdns.c i3c: master: cdns: Simplify handling clocks in probe() 2025-07-31 01:24:25 +02:00
Kconfig i3c: master: Add driver for Analog Devices I3C Controller IP 2025-09-16 17:06:43 +02:00
Makefile i3c: master: Add driver for Analog Devices I3C Controller IP 2025-09-16 17:06:43 +02:00
renesas-i3c.c i3c: renesas: Simplify return statement in 'renesas_i3c_daa' 2025-09-16 17:06:43 +02:00
svc-i3c-master.c i3c: master: svc: Initialize 'dev' to NULL in svc_i3c_master_ibi_isr() 2026-03-04 07:19:30 -05:00