From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- drivers/leds/leds-gpio-register.c | 43 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 drivers/leds/leds-gpio-register.c (limited to 'drivers/leds/leds-gpio-register.c') diff --git a/drivers/leds/leds-gpio-register.c b/drivers/leds/leds-gpio-register.c new file mode 100644 index 0000000000..de3f12c2b8 --- /dev/null +++ b/drivers/leds/leds-gpio-register.c @@ -0,0 +1,43 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2011 Pengutronix + * Uwe Kleine-Koenig + */ +#include +#include +#include +#include + +/** + * gpio_led_register_device - register a gpio-led device + * @pdata: the platform data used for the new device + * @id: platform ID + * + * Makes a copy of pdata and pdata->leds and registers a new leds-gpio device + * with the result. This allows to have pdata and pdata-leds in .init.rodata + * and so saves some bytes compared to a static struct platform_device with + * static platform data. + * + * Returns the registered device or an error pointer. + */ +struct platform_device *__init gpio_led_register_device( + int id, const struct gpio_led_platform_data *pdata) +{ + struct platform_device *ret; + struct gpio_led_platform_data _pdata = *pdata; + + if (!pdata->num_leds) + return ERR_PTR(-EINVAL); + + _pdata.leds = kmemdup(pdata->leds, + pdata->num_leds * sizeof(*pdata->leds), GFP_KERNEL); + if (!_pdata.leds) + return ERR_PTR(-ENOMEM); + + ret = platform_device_register_resndata(NULL, "leds-gpio", id, + NULL, 0, &_pdata, sizeof(_pdata)); + if (IS_ERR(ret)) + kfree(_pdata.leds); + + return ret; +} -- cgit v1.2.3