diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2026-03-06 09:24:47 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-03-19 16:15:31 +0100 |
| commit | 0d2806431d874a220452a8588104623946c7f570 (patch) | |
| tree | 201e93e69568d475128d5537f5f91eee8fe1bc2f /.mailmap | |
| parent | d6e90df771ba1888a295362f092f87c760d78e54 (diff) | |
i3c: mipi-i3c-hci: Restart DMA ring correctly after dequeue abort
commit b6d586431ae20d5157ee468d0ef62ad26798ef13 upstream.
The DMA dequeue path attempts to restart the ring after aborting an
in-flight transfer, but the current sequence is incomplete. The controller
must be brought out of the aborted state and the ring control registers
must be programmed in the correct order: first clearing ABORT, then
re-enabling the ring and asserting RUN_STOP to resume operation.
Add the missing controller resume step and update the ring control writes
so that the ring is restarted using the proper sequence.
Fixes: 9ad9a52cce282 ("i3c/master: introduce the mipi-i3c-hci driver")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260306072451.11131-11-adrian.hunter@intel.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to '.mailmap')
0 files changed, 0 insertions, 0 deletions