From: Clark Wang <xiaoning.wang@nxp.com>
To: linux@rempel-privat.de
Cc: kernel@pengutronix.de, shawnguo@kernel.org,
s.hauer@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com,
linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] i2c: imx: add irqf_no_suspend flag
Date: Wed, 16 Nov 2022 15:44:31 +0800 [thread overview]
Message-ID: <20221116074431.513214-1-xiaoning.wang@nxp.com> (raw)
The i2c irq is masked when user starts an i2c transfer process
during noirq suspend stage. As a result, i2c transfer fails.
To solve the problem, IRQF_NO_SUSPEND is added to i2c bus.
Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
---
drivers/i2c/busses/i2c-imx.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index 1ce0cf7a323f..ba49b2f7a1d1 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -1510,7 +1510,8 @@ static int i2c_imx_probe(struct platform_device *pdev)
goto rpm_disable;
/* Request IRQ */
- ret = request_threaded_irq(irq, i2c_imx_isr, NULL, IRQF_SHARED,
+ ret = request_threaded_irq(irq, i2c_imx_isr, NULL,
+ IRQF_SHARED | IRQF_NO_SUSPEND,
pdev->name, i2c_imx);
if (ret) {
dev_err(&pdev->dev, "can't claim irq %d\n", irq);
--
2.34.1
next reply other threads:[~2022-11-16 7:44 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-16 7:44 Clark Wang [this message]
2022-11-16 9:02 ` [PATCH] i2c: imx: add irqf_no_suspend flag Oleksij Rempel
2022-12-01 23:11 ` Wolfram Sang
2022-12-09 2:37 ` Clark Wang
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