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From: Barry Song <song.bao.hua@hisilicon.com>
To: <tglx@linutronix.de>, <dmitry.torokhov@gmail.com>,
	<maz@kernel.org>, <gregkh@linuxfoundation.org>,
	<linux-input@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: <linuxarm@openeuler.org>, Barry Song <song.bao.hua@hisilicon.com>
Subject: [PATCH v4 08/12] Input: mms114 - request_irq by IRQF_NO_AUTOEN and remove disable_irq
Date: Fri, 29 Jan 2021 11:35:34 +1300	[thread overview]
Message-ID: <20210128223538.20272-9-song.bao.hua@hisilicon.com> (raw)
In-Reply-To: <20210128223538.20272-1-song.bao.hua@hisilicon.com>

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/touchscreen/mms114.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/input/touchscreen/mms114.c b/drivers/input/touchscreen/mms114.c
index 16557f51b09d..7043f57ea2dd 100644
--- a/drivers/input/touchscreen/mms114.c
+++ b/drivers/input/touchscreen/mms114.c
@@ -530,13 +530,13 @@ static int mms114_probe(struct i2c_client *client,
 	}
 
 	error = devm_request_threaded_irq(&client->dev, client->irq,
-					  NULL, mms114_interrupt, IRQF_ONESHOT,
+					  NULL, mms114_interrupt,
+					  IRQF_ONESHOT | IRQF_NO_AUTOEN,
 					  dev_name(&client->dev), data);
 	if (error) {
 		dev_err(&client->dev, "Failed to register interrupt\n");
 		return error;
 	}
-	disable_irq(client->irq);
 
 	error = input_register_device(data->input_dev);
 	if (error) {
-- 
2.25.1


  parent reply	other threads:[~2021-01-28 22:45 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-28 22:35 [PATCH v4 00/12] add IRQF_NO_AUTOEN for request_irq Barry Song
2021-01-28 22:35 ` [PATCH v4 01/12] genirq: " Barry Song
2021-02-09 21:32   ` Song Bao Hua (Barry Song)
2021-01-28 22:35 ` [PATCH v4 02/12] Input: ar1021 - request_irq by IRQF_NO_AUTOEN and remove disable_irq Barry Song
2021-01-28 22:35 ` [PATCH v4 03/12] Input: atmel_mxt_ts " Barry Song
2021-01-28 22:35 ` [PATCH v4 04/12] Input: melfas_mip4 " Barry Song
2021-01-28 22:35 ` [PATCH v4 05/12] Input: bu21029_ts - request_irq by IRQF_NO_AUTOEN and remove irq_set_status_flags Barry Song
2021-01-28 22:35 ` [PATCH v4 06/12] Input: stmfts " Barry Song
2021-01-28 22:35 ` [PATCH v4 07/12] Input: zinitix " Barry Song
2021-01-28 22:35 ` Barry Song [this message]
2021-01-28 22:35 ` [PATCH v4 09/12] Input: wm831x-ts - request_irq by IRQF_NO_AUTOEN and remove disable_irq Barry Song
2021-01-28 22:35 ` [PATCH v4 10/12] Input: cyttsp " Barry Song
2021-01-28 22:35 ` [PATCH v4 11/12] Input: tegra-kbc " Barry Song
2021-01-28 22:35 ` [PATCH v4 12/12] Input: tca6416-keypad " Barry Song

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