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i2c: qup: move to use request_irq by IRQF_NO_AUTOEN flag 

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 because of requesting.

Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
This commit is contained in:
Tian Tao 2021-03-19 11:29:31 +08:00 committed by Wolfram Sang
parent 8e98c4f5c3
commit 5fe058b04d
1 changed files with 2 additions and 2 deletions
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4
drivers/i2c/busses/i2c-qup.c
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@ -1797,12 +1797,12 @@ nodma:
goto fail; goto fail;
ret = devm_request_irq(qup->dev, qup->irq, qup_i2c_interrupt, ret = devm_request_irq(qup->dev, qup->irq, qup_i2c_interrupt,
IRQF_TRIGGER_HIGH, "i2c_qup", qup); IRQF_TRIGGER_HIGH | IRQF_NO_AUTOEN,
"i2c_qup", qup);
if (ret) { if (ret) {
dev_err(qup->dev, "Request %d IRQ failed\n", qup->irq); dev_err(qup->dev, "Request %d IRQ failed\n", qup->irq);
goto fail; goto fail;
} }
disable_irq(qup->irq);
hw_ver = readl(qup->base + QUP_HW_VERSION); hw_ver = readl(qup->base + QUP_HW_VERSION);
dev_dbg(qup->dev, "Revision %x\n", hw_ver); dev_dbg(qup->dev, "Revision %x\n", hw_ver);