From: Stanley Chu <yschu@nuvoton.com>
Date: Tue, 18 Mar 2025 05:36:06 +0000 (+0800)
Subject: i3c: master: svc: Fix missing STOP for master request
X-Git-Tag: v6.14.9~635
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d231fb443d8d4042f0dd705b93beba8c916a7344;p=thirdparty%2Fkernel%2Fstable.git

i3c: master: svc: Fix missing STOP for master request

[ Upstream commit 0430bf9bc1ac068c8b8c540eb93e5751872efc51 ]

The controller driver nacked the master request but didn't emit a
STOP to end the transaction. The driver shall refuse the unsupported
requests and return the controller state to IDLE by emitting a STOP.

Signed-off-by: Stanley Chu <yschu@nuvoton.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20250318053606.3087121-4-yschu@nuvoton.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/i3c/master/svc-i3c-master.c b/drivers/i3c/master/svc-i3c-master.c
index 0fc03bb5d0a6e..a18fe62962b0c 100644
--- a/drivers/i3c/master/svc-i3c-master.c
+++ b/drivers/i3c/master/svc-i3c-master.c
@@ -551,6 +551,7 @@ static void svc_i3c_master_ibi_work(struct work_struct *work)
 			queue_work(master->base.wq, &master->hj_work);
 		break;
 	case SVC_I3C_MSTATUS_IBITYPE_MASTER_REQUEST:
+		svc_i3c_master_emit_stop(master);
 	default:
 		break;
 	}