modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

 kernel/drivers/char/tpm/tpm_tis.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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  * Copyright (C) 2005, 2006 IBM Corporation
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  * Copyright (C) 2014, 2015 Intel Corporation
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@@ -13,11 +14,6 @@
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  *
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  * This device driver implements the TPM interface as defined in
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  * the TCG TPM Interface Spec version 1.2, revision 1.0.
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of the GNU General Public License as
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- * published by the Free Software Foundation, version 2 of the
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- * License.
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  */
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 #include <linux/init.h>
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 #include <linux/module.h>
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@@ -54,31 +50,6 @@
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 	return container_of(data, struct tpm_tis_tcg_phy, priv);
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 }
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52
 
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-#ifdef CONFIG_PREEMPT_RT_FULL
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-/*
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- * Flushes previous write operations to chip so that a subsequent
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- * ioread*()s won't stall a cpu.
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- */
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-static inline void tpm_tis_flush(void __iomem *iobase)
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-{
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-	ioread8(iobase + TPM_ACCESS(0));
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-}
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-#else
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-#define tpm_tis_flush(iobase) do { } while (0)
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-#endif
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-
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-static inline void tpm_tis_iowrite8(u8 b, void __iomem *iobase, u32 addr)
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-{
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-	iowrite8(b, iobase + addr);
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-	tpm_tis_flush(iobase);
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-}
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-
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-static inline void tpm_tis_iowrite32(u32 b, void __iomem *iobase, u32 addr)
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-{
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-	iowrite32(b, iobase + addr);
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-	tpm_tis_flush(iobase);
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-}
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-
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 static int interrupts = -1;
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 module_param(interrupts, int, 0444);
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 MODULE_PARM_DESC(interrupts, "Enable interrupts");
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@@ -110,6 +81,22 @@
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 		.matches = {
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 			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
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 			DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T490s"),
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+		},
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+	},
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+	{
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+		.callback = tpm_tis_disable_irq,
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+		.ident = "ThinkStation P360 Tiny",
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+		.matches = {
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+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
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+			DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkStation P360 Tiny"),
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+		},
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+	},
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+	{
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+		.callback = tpm_tis_disable_irq,
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+		.ident = "ThinkPad L490",
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+		.matches = {
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+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
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+			DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L490"),
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 		},
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 	},
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 	{}
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@@ -154,6 +141,7 @@
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 	const struct acpi_device_id *aid = acpi_match_device(tpm_acpi_tbl, dev);
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 	struct acpi_table_tpm2 *tbl;
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 	acpi_status st;
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+	int ret = 0;
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 	if (!aid || aid->driver_data != DEVICE_IS_TPM2)
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 		return 0;
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@@ -161,8 +149,7 @@
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 	/* If the ACPI TPM2 signature is matched then a global ACPI_SIG_TPM2
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 	 * table is mandatory
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 	 */
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-	st =
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-	    acpi_get_table(ACPI_SIG_TPM2, 1, (struct acpi_table_header **)&tbl);
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+	st = acpi_get_table(ACPI_SIG_TPM2, 1, (struct acpi_table_header **)&tbl);
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 	if (ACPI_FAILURE(st) || tbl->header.length < sizeof(*tbl)) {
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 		dev_err(dev, FW_BUG "failed to get TPM2 ACPI table\n");
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 		return -EINVAL;
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@@ -170,9 +157,10 @@
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 	/* The tpm2_crb driver handles this device */
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 	if (tbl->start_method != ACPI_TPM2_MEMORY_MAPPED)
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-		return -ENODEV;
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+		ret = -ENODEV;
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-	return 0;
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+	acpi_put_table((struct acpi_table_header *)tbl);
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+	return ret;
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 }
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 #else
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 static int check_acpi_tpm2(struct device *dev)
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@@ -198,7 +186,7 @@
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 	struct tpm_tis_tcg_phy *phy = to_tpm_tis_tcg_phy(data);
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 	while (len--)
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-		tpm_tis_iowrite8(*value++, phy->iobase, addr);
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+		iowrite8(*value++, phy->iobase + addr);
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 	return 0;
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 }
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@@ -225,7 +213,7 @@
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 {
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 	struct tpm_tis_tcg_phy *phy = to_tpm_tis_tcg_phy(data);
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-	tpm_tis_iowrite32(value, phy->iobase, addr);
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+	iowrite32(value, phy->iobase + addr);
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 	return 0;
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 }
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@@ -289,6 +277,13 @@
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 	return tpm_tis_init(&pnp_dev->dev, &tpm_info);
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 }
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279
 
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+/*
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+ * There is a known bug caused by 93e1b7d42e1e ("[PATCH] tpm: add HID module
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+ * parameter"). This commit added IFX0102 device ID, which is also used by
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+ * tpm_infineon but ignored to add quirks to probe which driver ought to be
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+ * used.
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+ */
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+
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 static struct pnp_device_id tpm_pnp_tbl[] = {
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 	{"PNP0C31", 0},		/* TPM */
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 	{"ATM1200", 0},		/* Atmel */
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@@ -340,7 +335,7 @@
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 	}
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 	tpm_info.res = *res;
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-	tpm_info.irq = platform_get_irq(pdev, 0);
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+	tpm_info.irq = platform_get_irq_optional(pdev, 0);
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 	if (tpm_info.irq <= 0) {
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 		if (pdev != force_pdev)
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 			tpm_info.irq = -1;