From e1c13aed4a1641550e8c9518c96f016e1d52d09b Mon Sep 17 00:00:00 2001 From: Yijie Yang Date: Tue, 11 Aug 2026 16:46:47 +0800 Subject: dt-bindings: interconnect: qcom-bwmon: Add Maili cpu-bwmon compatible Add the Qualcomm Maili SoC compatible string for the CPU bandwidth monitor (BWMONv4). This falls back to the sdm845-bwmon compatible, consistent with the existing pattern used by other recent SoCs such as sm8750 and kaanapali. Signed-off-by: Yijie Yang Acked-by: Krzysztof Kozlowski Reviewed-by: Jingyi Wang Link: https://patch.msgid.link/20260811-bwmon-v2-1-80f7f150ab9e@oss.qualcomm.com Signed-off-by: Rob Herring (Arm) --- drivers/input/misc/tps6594-pwrbutton.c | 126 +++++++++++++++++++++++++++++++++ 1 file changed, 126 insertions(+) create mode 100644 drivers/input/misc/tps6594-pwrbutton.c (limited to 'drivers/input/misc/tps6594-pwrbutton.c') diff --git a/drivers/input/misc/tps6594-pwrbutton.c b/drivers/input/misc/tps6594-pwrbutton.c new file mode 100644 index 000000000..cd039b386 --- /dev/null +++ b/drivers/input/misc/tps6594-pwrbutton.c @@ -0,0 +1,126 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * power button driver for TI TPS6594 PMICs + * + * Copyright (C) 2025 Critical Link LLC - https://www.criticallink.com/ + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct tps6594_pwrbutton { + struct device *dev; + struct input_dev *idev; + char phys[32]; +}; + +static irqreturn_t tps6594_pb_push_irq(int irq, void *_pwr) +{ + struct tps6594_pwrbutton *pwr = _pwr; + + input_report_key(pwr->idev, KEY_POWER, 1); + pm_wakeup_event(pwr->dev, 0); + input_sync(pwr->idev); + + return IRQ_HANDLED; +} + +static irqreturn_t tps6594_pb_release_irq(int irq, void *_pwr) +{ + struct tps6594_pwrbutton *pwr = _pwr; + + input_report_key(pwr->idev, KEY_POWER, 0); + input_sync(pwr->idev); + + return IRQ_HANDLED; +} + +static int tps6594_pb_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct tps6594_pwrbutton *pwr; + struct input_dev *idev; + int error; + int push_irq; + int release_irq; + + pwr = devm_kzalloc(dev, sizeof(*pwr), GFP_KERNEL); + if (!pwr) + return -ENOMEM; + + idev = devm_input_allocate_device(dev); + if (!idev) + return -ENOMEM; + + idev->name = pdev->name; + snprintf(pwr->phys, sizeof(pwr->phys), "%s/input0", + pdev->name); + idev->phys = pwr->phys; + idev->id.bustype = BUS_I2C; + + input_set_capability(idev, EV_KEY, KEY_POWER); + + pwr->dev = dev; + pwr->idev = idev; + device_init_wakeup(dev, true); + + push_irq = platform_get_irq(pdev, 0); + if (push_irq < 0) + return -EINVAL; + + release_irq = platform_get_irq(pdev, 1); + if (release_irq < 0) + return -EINVAL; + + error = devm_request_threaded_irq(dev, push_irq, NULL, + tps6594_pb_push_irq, + IRQF_ONESHOT, + pdev->resource[0].name, pwr); + if (error) { + dev_err(dev, "failed to request push IRQ #%d: %d\n", push_irq, + error); + return error; + } + + error = devm_request_threaded_irq(dev, release_irq, NULL, + tps6594_pb_release_irq, + IRQF_ONESHOT, + pdev->resource[1].name, pwr); + if (error) { + dev_err(dev, "failed to request release IRQ #%d: %d\n", + release_irq, error); + return error; + } + + error = input_register_device(idev); + if (error) { + dev_err(dev, "Can't register power button: %d\n", error); + return error; + } + + return 0; +} + +static const struct platform_device_id tps6594_pwrbtn_id_table[] = { + { "tps6594-pwrbutton", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(platform, tps6594_pwrbtn_id_table); + +static struct platform_driver tps6594_pb_driver = { + .probe = tps6594_pb_probe, + .driver = { + .name = "tps6594_pwrbutton", + }, + .id_table = tps6594_pwrbtn_id_table, +}; +module_platform_driver(tps6594_pb_driver); + +MODULE_DESCRIPTION("TPS6594 Power Button"); +MODULE_LICENSE("GPL"); -- cgit v1.3.1