Re: [PATCH] i2c: qcom-geni: Use IRQF_NO_AUTOEN flag in request_irq()

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On 9/12/24 06:34, Jinjie Ruan wrote:
disable_irq() after request_irq() still has a time gap in which
interrupts can come. request_irq() with IRQF_NO_AUTOEN flag will
disable IRQ auto-enable when request IRQ.

Fixes: 37692de5d523 ("i2c: i2c-qcom-geni: Add bus driver for the Qualcomm GENI I2C controller")
Signed-off-by: Jinjie Ruan <ruanjinjie@xxxxxxxxxx>
---
  drivers/i2c/busses/i2c-qcom-geni.c | 4 +---
  1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c
index 06e836e3e877..4c9050a4d58e 100644
--- a/drivers/i2c/busses/i2c-qcom-geni.c
+++ b/drivers/i2c/busses/i2c-qcom-geni.c
@@ -818,15 +818,13 @@ static int geni_i2c_probe(struct platform_device *pdev)
  	init_completion(&gi2c->done);
  	spin_lock_init(&gi2c->lock);
  	platform_set_drvdata(pdev, gi2c);
-	ret = devm_request_irq(dev, gi2c->irq, geni_i2c_irq, 0,
+	ret = devm_request_irq(dev, gi2c->irq, geni_i2c_irq, IRQF_NO_AUTOEN,
  			       dev_name(dev), gi2c);
  	if (ret) {
  		dev_err(dev, "Request_irq failed:%d: err:%d\n",
  			gi2c->irq, ret);
  		return ret;
  	}
-	/* Disable the interrupt so that the system can enter low-power mode */
-	disable_irq(gi2c->irq);
  	i2c_set_adapdata(&gi2c->adap, gi2c);
  	gi2c->adap.dev.parent = dev;
  	gi2c->adap.dev.of_node = dev->of_node;

Thank you for the change.

Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@xxxxxxxxxx>

--
Best wishes,
Vladimir




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