add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/mfd/ipaq-micro.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Compaq iPAQ h3xxx Atmel microcontroller companion support
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  *
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@@ -8,10 +9,6 @@
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  * Author : Alessandro Gardich <gremlin@gremlin.it>
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  * Author : Dmitry Artamonow <mad_soft@inbox.ru>
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  * Author : Linus Walleij <linus.walleij@linaro.org>
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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  */
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 #include <linux/module.h>
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@@ -399,18 +396,14 @@
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 	if (IS_ERR(micro->base))
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 		return PTR_ERR(micro->base);
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-	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
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-	if (!res)
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-		return -EINVAL;
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-
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-	micro->sdlc = devm_ioremap_resource(&pdev->dev, res);
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+	micro->sdlc = devm_platform_ioremap_resource(pdev, 1);
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 	if (IS_ERR(micro->sdlc))
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 		return PTR_ERR(micro->sdlc);
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 	micro_reset_comm(micro);
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 	irq = platform_get_irq(pdev, 0);
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-	if (!irq)
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+	if (irq < 0)
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 		return -EINVAL;
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 	ret = devm_request_irq(&pdev->dev, irq, micro_serial_isr,
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 			       IRQF_SHARED, "ipaq-micro",