diff options
Diffstat (limited to 'drivers/input/touchscreen/stmfts.c')
| -rw-r--r-- | drivers/input/touchscreen/stmfts.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/drivers/input/touchscreen/stmfts.c b/drivers/input/touchscreen/stmfts.c index c12d01899939..efdb1a75a163 100644 --- a/drivers/input/touchscreen/stmfts.c +++ b/drivers/input/touchscreen/stmfts.c @@ -1,13 +1,8 @@ -/* - * Copyright (c) 2017 Samsung Electronics Co., Ltd. - * Author: Andi Shyti <andi.shyti@samsung.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * STMicroelectronics FTS Touchscreen device driver - */ +// SPDX-License-Identifier: GPL-2.0 +// STMicroelectronics FTS Touchscreen device driver +// +// Copyright (c) 2017 Samsung Electronics Co., Ltd. +// Copyright (c) 2017 Andi Shyti <andi.shyti@samsung.com> #include <linux/delay.h> #include <linux/i2c.h> @@ -687,6 +682,14 @@ static int stmfts_probe(struct i2c_client *client, input_set_drvdata(sdata->input, sdata); + /* + * stmfts_power_on expects interrupt to be disabled, but + * at this point the device is still off and I do not trust + * the status of the irq line that can generate some spurious + * interrupts. To be on the safe side it's better to not enable + * the interrupts during their request. + */ + irq_set_status_flags(client->irq, IRQ_NOAUTOEN); err = devm_request_threaded_irq(&client->dev, client->irq, NULL, stmfts_irq_handler, IRQF_ONESHOT, @@ -694,9 +697,6 @@ static int stmfts_probe(struct i2c_client *client, if (err) return err; - /* stmfts_power_on expects interrupt to be disabled */ - disable_irq(client->irq); - dev_dbg(&client->dev, "initializing ST-Microelectronics FTS...\n"); err = stmfts_power_on(sdata); |