[PATCH v3 11/12] Input: tegra-kbc - request_irq by IRQF_NO_AUTOEN and remove disable_irq

Barry Song
2021-01-07T22:46:25Z

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: Barry Song <song.bao.hua@hisilicon.com>
---
drivers/input/keyboard/tegra-kbc.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/input/keyboard/tegra-kbc.c b/drivers/input/keyboard/tegra-kbc.c
index 9671842a082a..570fe18c0ce9 100644
--- a/drivers/input/keyboard/tegra-kbc.c
+++ b/drivers/input/keyboard/tegra-kbc.c
@@ -694,14 +694,13 @@ static int tegra_kbc_probe(struct platform_device *pdev)
input_set_drvdata(kbc->idev, kbc);

err = devm_request_irq(&pdev->dev, kbc->irq, tegra_kbc_isr,
- IRQF_TRIGGER_HIGH, pdev->name, kbc);
+ IRQF_TRIGGER_HIGH | IRQF_NO_AUTOEN,
+ pdev->name, kbc);
if (err) {
dev_err(&pdev->dev, "failed to request keyboard IRQ\n");
return err;
}

- disable_irq(kbc->irq);
-
err = input_register_device(kbc->idev);
if (err) {
dev_err(&pdev->dev, "failed to register input device\n");
--
2.25.1