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i3c: mipi-i3c-hci: Restart DMA ring correctly after dequeue abort

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>

authored by

Adrian Hunter and committed by
Alexandre Belloni b6d58643 ec3cfd83

+2
+2
drivers/i3c/master/mipi-i3c-hci/dma.c
··· 600 600 } 601 601 602 602 /* restart the ring */ 603 + mipi_i3c_hci_resume(hci); 603 604 rh_reg_write(RING_CONTROL, RING_CTRL_ENABLE); 605 + rh_reg_write(RING_CONTROL, RING_CTRL_ENABLE | RING_CTRL_RUN_STOP); 604 606 605 607 spin_unlock_irq(&hci->lock); 606 608