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linux/drivers/platform/x86/xo1-rfkill.c
Uwe Kleine-König 3ea5eb68b9
platform/x86: Switch back to struct platform_driver::remove()
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>
2024-10-17 12:39:32 +03:00

79 lines
1.5 KiB
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Support for rfkill through the OLPC XO-1 laptop embedded controller
*
* Copyright (C) 2010 One Laptop per Child
*/
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/rfkill.h>
#include <linux/olpc-ec.h>
static bool card_blocked;
static int rfkill_set_block(void *data, bool blocked)
{
unsigned char cmd;
int r;
if (blocked == card_blocked)
return 0;
if (blocked)
cmd = EC_WLAN_ENTER_RESET;
else
cmd = EC_WLAN_LEAVE_RESET;
r = olpc_ec_cmd(cmd, NULL, 0, NULL, 0);
if (r == 0)
card_blocked = blocked;
return r;
}
static const struct rfkill_ops rfkill_ops = {
.set_block = rfkill_set_block,
};
static int xo1_rfkill_probe(struct platform_device *pdev)
{
struct rfkill *rfk;
int r;
rfk = rfkill_alloc(pdev->name, &pdev->dev, RFKILL_TYPE_WLAN,
&rfkill_ops, NULL);
if (!rfk)
return -ENOMEM;
r = rfkill_register(rfk);
if (r) {
rfkill_destroy(rfk);
return r;
}
platform_set_drvdata(pdev, rfk);
return 0;
}
static void xo1_rfkill_remove(struct platform_device *pdev)
{
struct rfkill *rfk = platform_get_drvdata(pdev);
rfkill_unregister(rfk);
rfkill_destroy(rfk);
}
static struct platform_driver xo1_rfkill_driver = {
.driver = {
.name = "xo1-rfkill",
},
.probe = xo1_rfkill_probe,
.remove = xo1_rfkill_remove,
};
module_platform_driver(xo1_rfkill_driver);
MODULE_AUTHOR("Daniel Drake <dsd@laptop.org>");
MODULE_DESCRIPTION("OLPC XO-1 software RF kill switch");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:xo1-rfkill");