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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/input/misc/rk805-pwrkey.c | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/input/misc/rk805-pwrkey.c')
-rw-r--r-- | drivers/input/misc/rk805-pwrkey.c | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/drivers/input/misc/rk805-pwrkey.c b/drivers/input/misc/rk805-pwrkey.c new file mode 100644 index 000000000..76873aa00 --- /dev/null +++ b/drivers/input/misc/rk805-pwrkey.c @@ -0,0 +1,104 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Rockchip RK805 PMIC Power Key driver + * + * Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd + * + * Author: Joseph Chen <chenjh@rock-chips.com> + */ + +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/input.h> +#include <linux/interrupt.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/platform_device.h> + +static irqreturn_t pwrkey_fall_irq(int irq, void *_pwr) +{ + struct input_dev *pwr = _pwr; + + input_report_key(pwr, KEY_POWER, 1); + input_sync(pwr); + + return IRQ_HANDLED; +} + +static irqreturn_t pwrkey_rise_irq(int irq, void *_pwr) +{ + struct input_dev *pwr = _pwr; + + input_report_key(pwr, KEY_POWER, 0); + input_sync(pwr); + + return IRQ_HANDLED; +} + +static int rk805_pwrkey_probe(struct platform_device *pdev) +{ + struct input_dev *pwr; + int fall_irq, rise_irq; + int err; + + pwr = devm_input_allocate_device(&pdev->dev); + if (!pwr) { + dev_err(&pdev->dev, "Can't allocate power button\n"); + return -ENOMEM; + } + + pwr->name = "rk805 pwrkey"; + pwr->phys = "rk805_pwrkey/input0"; + pwr->id.bustype = BUS_HOST; + input_set_capability(pwr, EV_KEY, KEY_POWER); + + fall_irq = platform_get_irq(pdev, 0); + if (fall_irq < 0) + return fall_irq; + + rise_irq = platform_get_irq(pdev, 1); + if (rise_irq < 0) + return rise_irq; + + err = devm_request_any_context_irq(&pwr->dev, fall_irq, + pwrkey_fall_irq, + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, + "rk805_pwrkey_fall", pwr); + if (err < 0) { + dev_err(&pdev->dev, "Can't register fall irq: %d\n", err); + return err; + } + + err = devm_request_any_context_irq(&pwr->dev, rise_irq, + pwrkey_rise_irq, + IRQF_TRIGGER_RISING | IRQF_ONESHOT, + "rk805_pwrkey_rise", pwr); + if (err < 0) { + dev_err(&pdev->dev, "Can't register rise irq: %d\n", err); + return err; + } + + err = input_register_device(pwr); + if (err) { + dev_err(&pdev->dev, "Can't register power button: %d\n", err); + return err; + } + + platform_set_drvdata(pdev, pwr); + device_init_wakeup(&pdev->dev, true); + + return 0; +} + +static struct platform_driver rk805_pwrkey_driver = { + .probe = rk805_pwrkey_probe, + .driver = { + .name = "rk805-pwrkey", + }, +}; +module_platform_driver(rk805_pwrkey_driver); + +MODULE_ALIAS("platform:rk805-pwrkey"); +MODULE_AUTHOR("Joseph Chen <chenjh@rock-chips.com>"); +MODULE_DESCRIPTION("RK805 PMIC Power Key driver"); +MODULE_LICENSE("GPL"); |