diff mbox series

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

Message ID 20210107223926.35284-12-song.bao.hua@hisilicon.com
State Superseded
Headers show
Series add IRQF_NO_AUTOEN for request_irq | expand

Commit Message

Song Bao Hua (Barry Song) Jan. 7, 2021, 10:39 p.m. UTC 
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 mbox series

Patch

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");