From: Frank Li <Frank.Li@nxp.com>
To: miquel.raynal@bootlin.com
Cc: Frank.Li@nxp.com, alexandre.belloni@bootlin.com,
conor.culhane@silvaco.com, imx@lists.linux.dev, joe@perches.com,
linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH v3 5/6] i3c: master: svc: fix SDA keep low when polling IBIWON timeout happen
Date: Thu, 19 Oct 2023 18:27:24 -0400 [thread overview]
Message-ID: <20231019222725.3598022-6-Frank.Li@nxp.com> (raw)
In-Reply-To: <20231019222725.3598022-1-Frank.Li@nxp.com>
Upon IBIWON timeout, the SDA line will always be kept low if we don't emit
a stop. Calling svc_i3c_master_emit_stop() there will let the bus return to
idle state.
Call svc_i3c_master_emit_stop() to let i3c bus come back to idle statue
when IBIWON timeout happen.
Fixes: dd3c52846d59 ("i3c: master: svc: Add Silvaco I3C master driver")
Cc: stable@vger.kernel.org
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
Notes:
Change from v2 to v3
- Update commit message and add review tag
Change from v1 to v2
- Update commite message
Change from v1 to v2
- Update commite message
drivers/i3c/master/svc-i3c-master.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/i3c/master/svc-i3c-master.c b/drivers/i3c/master/svc-i3c-master.c
index b113460f059c3..1a57fdebaa26d 100644
--- a/drivers/i3c/master/svc-i3c-master.c
+++ b/drivers/i3c/master/svc-i3c-master.c
@@ -404,6 +404,7 @@ static void svc_i3c_master_ibi_work(struct work_struct *work)
SVC_I3C_MSTATUS_IBIWON(val), 0, 1000);
if (ret) {
dev_err(master->dev, "Timeout when polling for IBIWON\n");
+ svc_i3c_master_emit_stop(master);
goto reenable_ibis;
}
--
2.34.1
next prev parent reply other threads:[~2023-10-19 22:28 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-19 22:27 [PATCH v3 0/6] i3c: master: svc: collection of bugs fixes Frank Li
2023-10-19 22:27 ` [PATCH v3 1/6] i3c: master: svc: fix race condition in ibi work thread Frank Li
2023-10-19 22:27 ` [PATCH v3 2/6] i3c: master: svc: fix wrong data return when IBI happen during start frame Frank Li
2023-10-20 13:56 ` Miquel Raynal
2023-10-19 22:27 ` [PATCH v3 3/6] i3c: master: svc: fix ibi may not return mandatory data byte Frank Li
2023-10-20 13:49 ` Miquel Raynal
2023-10-19 22:27 ` [PATCH v3 4/6] i3c: master: svc: fix check wrong status register in irq handler Frank Li
2023-10-20 13:50 ` Miquel Raynal
2023-10-19 22:27 ` Frank Li [this message]
2023-10-20 0:28 ` [PATCH v3 5/6] i3c: master: svc: fix SDA keep low when polling IBIWON timeout happen Frank Li
2023-10-19 22:27 ` [PATCH v3 6/6] i3c: master: svc: fix random hot join failure since timeout error Frank Li
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