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2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/drivers/mfd/intel-lpss-acpi.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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  * Intel LPSS ACPI support.
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  *
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@@ -5,22 +6,21 @@
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  *
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  * Authors: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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  *          Mika Westerberg <mika.westerberg@linux.intel.com>
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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/acpi.h>
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 #include <linux/ioport.h>
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 #include <linux/kernel.h>
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 #include <linux/module.h>
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-#include <linux/pm.h>
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 #include <linux/pm_runtime.h>
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 #include <linux/platform_device.h>
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 #include <linux/property.h>
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 #include "intel-lpss.h"
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+
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+static const struct intel_lpss_platform_info spt_info = {
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+	.clk_rate = 120000000,
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+};
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 static struct property_entry spt_i2c_properties[] = {
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 	PROPERTY_ENTRY_U32("i2c-sda-hold-time-ns", 230),
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@@ -30,6 +30,19 @@
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 static const struct intel_lpss_platform_info spt_i2c_info = {
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 	.clk_rate = 120000000,
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 	.properties = spt_i2c_properties,
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+};
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+
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+static struct property_entry uart_properties[] = {
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+	PROPERTY_ENTRY_U32("reg-io-width", 4),
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+	PROPERTY_ENTRY_U32("reg-shift", 2),
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+	PROPERTY_ENTRY_BOOL("snps,uart-16550-compatible"),
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+	{ },
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+};
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+
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+static const struct intel_lpss_platform_info spt_uart_info = {
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+	.clk_rate = 120000000,
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+	.clk_con_id = "baudclk",
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+	.properties = uart_properties,
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 };
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 static const struct intel_lpss_platform_info bxt_info = {
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@@ -62,8 +75,17 @@
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 static const struct acpi_device_id intel_lpss_acpi_ids[] = {
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 	/* SPT */
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+	{ "INT3440", (kernel_ulong_t)&spt_info },
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+	{ "INT3441", (kernel_ulong_t)&spt_info },
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+	{ "INT3442", (kernel_ulong_t)&spt_i2c_info },
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+	{ "INT3443", (kernel_ulong_t)&spt_i2c_info },
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+	{ "INT3444", (kernel_ulong_t)&spt_i2c_info },
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+	{ "INT3445", (kernel_ulong_t)&spt_i2c_info },
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 	{ "INT3446", (kernel_ulong_t)&spt_i2c_info },
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 	{ "INT3447", (kernel_ulong_t)&spt_i2c_info },
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+	{ "INT3448", (kernel_ulong_t)&spt_uart_info },
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+	{ "INT3449", (kernel_ulong_t)&spt_uart_info },
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+	{ "INT344A", (kernel_ulong_t)&spt_uart_info },
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 	/* BXT */
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 	{ "80860AAC", (kernel_ulong_t)&bxt_i2c_info },
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 	{ "80860ABC", (kernel_ulong_t)&bxt_info },
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@@ -92,6 +114,9 @@
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 		return -ENOMEM;
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 	info->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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+	if (!info->mem)
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+		return -ENODEV;
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+
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 	info->irq = platform_get_irq(pdev, 0);
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 	ret = intel_lpss_probe(&pdev->dev, info);