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https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
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3ea5eb68b9
After commit 0edb555a65 ("platform: Make platform_driver::remove()
return void") .remove() is (again) the right callback to implement for
platform drivers.
Convert all platform drivers below drivers/platform/x86/ to use
.remove(), with the eventual goal to drop struct
platform_driver::remove_new(). As .remove() and .remove_new() have the
same prototypes, conversion is done by just changing the structure
member name in the driver initializer.
While touching these files, make indention of the struct initializer
consistent in several files.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Link: https://lore.kernel.org/r/20241017073802.53235-2-u.kleine-koenig@baylibre.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
120 lines
3.0 KiB
C
120 lines
3.0 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* adv_swbutton.c - Software Button Interface Driver.
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*
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* (C) Copyright 2020 Advantech Corporation, Inc
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*
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/input.h>
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#include <linux/acpi.h>
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#include <linux/platform_device.h>
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#define ACPI_BUTTON_HID_SWBTN "AHC0310"
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#define ACPI_BUTTON_NOTIFY_SWBTN_RELEASE 0x86
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#define ACPI_BUTTON_NOTIFY_SWBTN_PRESSED 0x85
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struct adv_swbutton {
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struct input_dev *input;
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char phys[32];
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};
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/*-------------------------------------------------------------------------
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* Driver Interface
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*--------------------------------------------------------------------------
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*/
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static void adv_swbutton_notify(acpi_handle handle, u32 event, void *context)
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{
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struct platform_device *device = context;
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struct adv_swbutton *button = dev_get_drvdata(&device->dev);
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switch (event) {
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case ACPI_BUTTON_NOTIFY_SWBTN_RELEASE:
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input_report_key(button->input, KEY_PROG1, 0);
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input_sync(button->input);
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break;
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case ACPI_BUTTON_NOTIFY_SWBTN_PRESSED:
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input_report_key(button->input, KEY_PROG1, 1);
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input_sync(button->input);
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break;
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default:
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dev_dbg(&device->dev, "Unsupported event [0x%x]\n", event);
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}
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}
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static int adv_swbutton_probe(struct platform_device *device)
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{
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struct adv_swbutton *button;
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struct input_dev *input;
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acpi_handle handle = ACPI_HANDLE(&device->dev);
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acpi_status status;
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int error;
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button = devm_kzalloc(&device->dev, sizeof(*button), GFP_KERNEL);
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if (!button)
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return -ENOMEM;
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dev_set_drvdata(&device->dev, button);
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input = devm_input_allocate_device(&device->dev);
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if (!input)
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return -ENOMEM;
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button->input = input;
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snprintf(button->phys, sizeof(button->phys), "%s/button/input0", ACPI_BUTTON_HID_SWBTN);
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input->name = "Advantech Software Button";
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input->phys = button->phys;
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input->id.bustype = BUS_HOST;
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input->dev.parent = &device->dev;
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set_bit(EV_REP, input->evbit);
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input_set_capability(input, EV_KEY, KEY_PROG1);
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error = input_register_device(input);
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if (error)
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return error;
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device_init_wakeup(&device->dev, true);
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status = acpi_install_notify_handler(handle,
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ACPI_DEVICE_NOTIFY,
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adv_swbutton_notify,
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device);
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if (ACPI_FAILURE(status)) {
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dev_err(&device->dev, "Error installing notify handler\n");
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return -EIO;
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}
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return 0;
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}
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static void adv_swbutton_remove(struct platform_device *device)
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{
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acpi_handle handle = ACPI_HANDLE(&device->dev);
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acpi_remove_notify_handler(handle, ACPI_DEVICE_NOTIFY,
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adv_swbutton_notify);
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}
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static const struct acpi_device_id button_device_ids[] = {
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{ACPI_BUTTON_HID_SWBTN, 0},
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{"", 0},
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};
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MODULE_DEVICE_TABLE(acpi, button_device_ids);
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static struct platform_driver adv_swbutton_driver = {
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.driver = {
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.name = "adv_swbutton",
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.acpi_match_table = button_device_ids,
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},
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.probe = adv_swbutton_probe,
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.remove = adv_swbutton_remove,
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};
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module_platform_driver(adv_swbutton_driver);
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MODULE_AUTHOR("Andrea Ho");
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MODULE_DESCRIPTION("Advantech ACPI SW Button Driver");
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MODULE_LICENSE("GPL v2");
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