修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/drivers/platform/x86/intel_punit_ipc.c
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@@ -1,25 +1,22 @@
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+// SPDX-License-Identifier: GPL-2.0
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 /*
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  * Driver for the Intel P-Unit Mailbox IPC mechanism
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  *
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  * (C) Copyright 2015 Intel Corporation
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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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  * The heart of the P-Unit is the Foxton microcontroller and its firmware,
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  * which provide mailbox interface for power management usage.
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  */
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10
 
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-#include <linux/module.h>
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-#include <linux/mod_devicetable.h>
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-#include <linux/acpi.h>
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-#include <linux/delay.h>
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 #include <linux/bitops.h>
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+#include <linux/delay.h>
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 #include <linux/device.h>
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 #include <linux/interrupt.h>
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 #include <linux/io.h>
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+#include <linux/mod_devicetable.h>
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+#include <linux/module.h>
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 #include <linux/platform_device.h>
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+
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 #include <asm/intel_punit_ipc.h>
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21
 
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 /* IPC Mailbox registers */
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@@ -226,7 +223,6 @@
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223
 
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 static int intel_punit_get_bars(struct platform_device *pdev)
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 {
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-	struct resource *res;
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 	void __iomem *addr;
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 	/*
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@@ -234,14 +230,12 @@
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 	 * - BIOS_IPC BASE_DATA
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 	 * - BIOS_IPC BASE_IFACE
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 	 */
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-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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-	addr = devm_ioremap_resource(&pdev->dev, res);
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+	addr = devm_platform_ioremap_resource(pdev, 0);
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 	if (IS_ERR(addr))
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 		return PTR_ERR(addr);
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 	punit_ipcdev->base[BIOS_IPC][BASE_DATA] = addr;
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-	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
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-	addr = devm_ioremap_resource(&pdev->dev, res);
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+	addr = devm_platform_ioremap_resource(pdev, 1);
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 	if (IS_ERR(addr))
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 		return PTR_ERR(addr);
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 	punit_ipcdev->base[BIOS_IPC][BASE_IFACE] = addr;
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@@ -253,33 +247,21 @@
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 	 * - GTDRIVER_IPC BASE_DATA
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 	 * - GTDRIVER_IPC BASE_IFACE
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 	 */
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-	res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
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-	if (res && resource_size(res) > 1) {
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-		addr = devm_ioremap_resource(&pdev->dev, res);
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-		if (!IS_ERR(addr))
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-			punit_ipcdev->base[ISPDRIVER_IPC][BASE_DATA] = addr;
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-	}
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+	addr = devm_platform_ioremap_resource(pdev, 2);
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+	if (!IS_ERR(addr))
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+		punit_ipcdev->base[ISPDRIVER_IPC][BASE_DATA] = addr;
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-	res = platform_get_resource(pdev, IORESOURCE_MEM, 3);
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-	if (res && resource_size(res) > 1) {
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-		addr = devm_ioremap_resource(&pdev->dev, res);
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-		if (!IS_ERR(addr))
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-			punit_ipcdev->base[ISPDRIVER_IPC][BASE_IFACE] = addr;
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-	}
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+	addr = devm_platform_ioremap_resource(pdev, 3);
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+	if (!IS_ERR(addr))
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+		punit_ipcdev->base[ISPDRIVER_IPC][BASE_IFACE] = addr;
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-	res = platform_get_resource(pdev, IORESOURCE_MEM, 4);
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-	if (res && resource_size(res) > 1) {
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-		addr = devm_ioremap_resource(&pdev->dev, res);
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-		if (!IS_ERR(addr))
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-			punit_ipcdev->base[GTDRIVER_IPC][BASE_DATA] = addr;
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-	}
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+	addr = devm_platform_ioremap_resource(pdev, 4);
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+	if (!IS_ERR(addr))
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+		punit_ipcdev->base[GTDRIVER_IPC][BASE_DATA] = addr;
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-	res = platform_get_resource(pdev, IORESOURCE_MEM, 5);
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-	if (res && resource_size(res) > 1) {
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-		addr = devm_ioremap_resource(&pdev->dev, res);
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-		if (!IS_ERR(addr))
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-			punit_ipcdev->base[GTDRIVER_IPC][BASE_IFACE] = addr;
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-	}
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+	addr = devm_platform_ioremap_resource(pdev, 5);
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+	if (!IS_ERR(addr))
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+		punit_ipcdev->base[GTDRIVER_IPC][BASE_IFACE] = addr;
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 	return 0;
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 }
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@@ -295,9 +277,8 @@
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 	platform_set_drvdata(pdev, punit_ipcdev);
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-	irq = platform_get_irq(pdev, 0);
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+	irq = platform_get_irq_optional(pdev, 0);
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 	if (irq < 0) {
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-		punit_ipcdev->irq = 0;
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 		dev_warn(&pdev->dev, "Invalid IRQ, using polling mode\n");
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 	} else {
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 		ret = devm_request_irq(&pdev->dev, irq, intel_punit_ioc,
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@@ -312,14 +293,13 @@
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 	ret = intel_punit_get_bars(pdev);
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 	if (ret)
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-		goto out;
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+		return ret;
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 	punit_ipcdev->dev = &pdev->dev;
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 	mutex_init(&punit_ipcdev->lock);
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 	init_completion(&punit_ipcdev->cmd_complete);
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-out:
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-	return ret;
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+	return 0;
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 }
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 static int intel_punit_ipc_remove(struct platform_device *pdev)
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@@ -338,7 +318,7 @@
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 	.remove = intel_punit_ipc_remove,
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 	.driver = {
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 		.name = "intel_punit_ipc",
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-		.acpi_match_table = ACPI_PTR(punit_ipc_acpi_ids),
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+		.acpi_match_table = punit_ipc_acpi_ids,
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 	},
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 };
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