[PATCH v4 02/12] Input: ar1021 - request_irq by IRQF_NO_AUTOEN and remove disable_irq
From: Barry Song <hidden>
Date: 2021-01-28 22:43:00
Also in:
linux-input
Subsystem:
input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers:
Dmitry Torokhov, Linus Torvalds
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 <redacted> --- drivers/input/touchscreen/ar1021_i2c.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/input/touchscreen/ar1021_i2c.c b/drivers/input/touchscreen/ar1021_i2c.c
index c0d5c2413356..dc6a85362a40 100644
--- a/drivers/input/touchscreen/ar1021_i2c.c
+++ b/drivers/input/touchscreen/ar1021_i2c.c@@ -125,7 +125,7 @@ static int ar1021_i2c_probe(struct i2c_client *client, error = devm_request_threaded_irq(&client->dev, client->irq, NULL, ar1021_i2c_irq, - IRQF_ONESHOT, + IRQF_ONESHOT | IRQF_NO_AUTOEN, "ar1021_i2c", ar1021); if (error) { dev_err(&client->dev,
@@ -133,9 +133,6 @@ static int ar1021_i2c_probe(struct i2c_client *client, return error; } - /* Disable the IRQ, we'll enable it in ar1021_i2c_open() */ - disable_irq(client->irq); - error = input_register_device(ar1021->input); if (error) { dev_err(&client->dev,
--
2.25.1