From: Stanley Chu <stanley.chuys@gmail.com>
To: frank.li@nxp.com, miquel.raynal@bootlin.com,
alexandre.belloni@bootlin.com, linux-i3c@lists.infradead.org
Cc: linux-kernel@vger.kernel.org, tomer.maimon@nuvoton.com,
kwliu@nuvoton.com, yschu@nuvoton.com
Subject: [PATCH v1 2/2] i3c: master: svc: Emit STOP asap in the IBI transaction
Date: Tue, 15 Apr 2025 13:18:08 +0800 [thread overview]
Message-ID: <20250415051808.88091-3-yschu@nuvoton.com> (raw)
In-Reply-To: <20250415051808.88091-1-yschu@nuvoton.com>
From: Stanley Chu <yschu@nuvoton.com>
Queuing the IBI request does not need to be done earlier than emitting
the STOP. Emitting STOP immediately after receiving the IBI request can
complete the IBI transaction earlier and return the bus to idle.
Signed-off-by: Stanley Chu <yschu@nuvoton.com>
---
drivers/i3c/master/svc-i3c-master.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/i3c/master/svc-i3c-master.c b/drivers/i3c/master/svc-i3c-master.c
index 7ceaf3ec45bb..9b23239ad8db 100644
--- a/drivers/i3c/master/svc-i3c-master.c
+++ b/drivers/i3c/master/svc-i3c-master.c
@@ -577,11 +577,11 @@ static void svc_i3c_master_ibi_isr(struct svc_i3c_master *master)
/* Handle the non critical tasks */
switch (ibitype) {
case SVC_I3C_MSTATUS_IBITYPE_IBI:
+ svc_i3c_master_emit_stop(master);
if (dev) {
i3c_master_queue_ibi(dev, master->ibi.tbq_slot);
master->ibi.tbq_slot = NULL;
}
- svc_i3c_master_emit_stop(master);
break;
case SVC_I3C_MSTATUS_IBITYPE_HOT_JOIN:
svc_i3c_master_emit_stop(master);
--
2.34.1
--
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next prev parent reply other threads:[~2025-04-15 5:32 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-15 5:18 [PATCH v1 0/2] svc-i3c-master: Reduce IBI transaction time Stanley Chu
2025-04-15 5:18 ` [PATCH v1 1/2] i3c: master: svc: Receive IBI requests in interrupt context Stanley Chu
2025-04-15 16:14 ` Frank Li
2025-04-15 5:18 ` Stanley Chu [this message]
2025-04-15 16:15 ` [PATCH v1 2/2] i3c: master: svc: Emit STOP asap in the IBI transaction Frank Li
2025-04-15 8:31 ` [PATCH v1 0/2] svc-i3c-master: Reduce IBI transaction time Miquel Raynal
2025-04-18 7:39 ` Stanley Chu
2025-05-15 9:54 ` Alexandre Belloni
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