summaryrefslogtreecommitdiff
path: root/drivers/char/tpm
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/char/tpm')
-rw-r--r--drivers/char/tpm/eventlog/acpi.c12
-rw-r--r--drivers/char/tpm/st33zp24/i2c.c142
-rw-r--r--drivers/char/tpm/st33zp24/spi.c145
-rw-r--r--drivers/char/tpm/st33zp24/st33zp24.c39
-rw-r--r--drivers/char/tpm/st33zp24/st33zp24.h7
-rw-r--r--drivers/char/tpm/tpm-chip.c7
-rw-r--r--drivers/char/tpm/tpm-dev-common.c4
-rw-r--r--drivers/char/tpm/tpm-interface.c5
-rw-r--r--drivers/char/tpm/tpm_crb.c35
-rw-r--r--drivers/char/tpm/tpm_ftpm_tee.c8
-rw-r--r--drivers/char/tpm/tpm_tis.c9
-rw-r--r--drivers/char/tpm/tpm_tis_core.c20
-rw-r--r--drivers/char/tpm/tpm_tis_core.h1
-rw-r--r--drivers/char/tpm/tpm_tis_i2c.c3
14 files changed, 112 insertions, 325 deletions
diff --git a/drivers/char/tpm/eventlog/acpi.c b/drivers/char/tpm/eventlog/acpi.c
index 1b18ce5ebab1..0913d3eb8d51 100644
--- a/drivers/char/tpm/eventlog/acpi.c
+++ b/drivers/char/tpm/eventlog/acpi.c
@@ -90,16 +90,21 @@ int tpm_read_log_acpi(struct tpm_chip *chip)
return -ENODEV;
if (tbl->header.length <
- sizeof(*tbl) + sizeof(struct acpi_tpm2_phy))
+ sizeof(*tbl) + sizeof(struct acpi_tpm2_phy)) {
+ acpi_put_table((struct acpi_table_header *)tbl);
return -ENODEV;
+ }
tpm2_phy = (void *)tbl + sizeof(*tbl);
len = tpm2_phy->log_area_minimum_length;
start = tpm2_phy->log_area_start_address;
- if (!start || !len)
+ if (!start || !len) {
+ acpi_put_table((struct acpi_table_header *)tbl);
return -ENODEV;
+ }
+ acpi_put_table((struct acpi_table_header *)tbl);
format = EFI_TCG2_EVENT_LOG_FORMAT_TCG_2;
} else {
/* Find TCPA entry in RSDT (ACPI_LOGICAL_ADDRESSING) */
@@ -120,8 +125,10 @@ int tpm_read_log_acpi(struct tpm_chip *chip)
break;
}
+ acpi_put_table((struct acpi_table_header *)buff);
format = EFI_TCG2_EVENT_LOG_FORMAT_TCG_1_2;
}
+
if (!len) {
dev_warn(&chip->dev, "%s: TCPA log area empty\n", __func__);
return -EIO;
@@ -156,5 +163,4 @@ err:
kfree(log->bios_event_log);
log->bios_event_log = NULL;
return ret;
-
}
diff --git a/drivers/char/tpm/st33zp24/i2c.c b/drivers/char/tpm/st33zp24/i2c.c
index a3aa411389e7..8156bb2af78c 100644
--- a/drivers/char/tpm/st33zp24/i2c.c
+++ b/drivers/char/tpm/st33zp24/i2c.c
@@ -6,13 +6,9 @@
#include <linux/module.h>
#include <linux/i2c.h>
-#include <linux/gpio.h>
-#include <linux/gpio/consumer.h>
-#include <linux/of_irq.h>
-#include <linux/of_gpio.h>
+#include <linux/of.h>
#include <linux/acpi.h>
#include <linux/tpm.h>
-#include <linux/platform_data/st33zp24.h>
#include "../tpm.h"
#include "st33zp24.h"
@@ -22,7 +18,6 @@
struct st33zp24_i2c_phy {
struct i2c_client *client;
u8 buf[ST33ZP24_BUFSIZE + 1];
- int io_lpcpd;
};
/*
@@ -99,115 +94,6 @@ static const struct st33zp24_phy_ops i2c_phy_ops = {
.recv = st33zp24_i2c_recv,
};
-static const struct acpi_gpio_params lpcpd_gpios = { 1, 0, false };
-
-static const struct acpi_gpio_mapping acpi_st33zp24_gpios[] = {
- { "lpcpd-gpios", &lpcpd_gpios, 1 },
- {},
-};
-
-static int st33zp24_i2c_acpi_request_resources(struct i2c_client *client)
-{
- struct tpm_chip *chip = i2c_get_clientdata(client);
- struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
- struct st33zp24_i2c_phy *phy = tpm_dev->phy_id;
- struct gpio_desc *gpiod_lpcpd;
- struct device *dev = &client->dev;
- int ret;
-
- ret = devm_acpi_dev_add_driver_gpios(dev, acpi_st33zp24_gpios);
- if (ret)
- return ret;
-
- /* Get LPCPD GPIO from ACPI */
- gpiod_lpcpd = devm_gpiod_get(dev, "lpcpd", GPIOD_OUT_HIGH);
- if (IS_ERR(gpiod_lpcpd)) {
- dev_err(&client->dev,
- "Failed to retrieve lpcpd-gpios from acpi.\n");
- phy->io_lpcpd = -1;
- /*
- * lpcpd pin is not specified. This is not an issue as
- * power management can be also managed by TPM specific
- * commands. So leave with a success status code.
- */
- return 0;
- }
-
- phy->io_lpcpd = desc_to_gpio(gpiod_lpcpd);
-
- return 0;
-}
-
-static int st33zp24_i2c_of_request_resources(struct i2c_client *client)
-{
- struct tpm_chip *chip = i2c_get_clientdata(client);
- struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
- struct st33zp24_i2c_phy *phy = tpm_dev->phy_id;
- struct device_node *pp;
- int gpio;
- int ret;
-
- pp = client->dev.of_node;
- if (!pp) {
- dev_err(&client->dev, "No platform data\n");
- return -ENODEV;
- }
-
- /* Get GPIO from device tree */
- gpio = of_get_named_gpio(pp, "lpcpd-gpios", 0);
- if (gpio < 0) {
- dev_err(&client->dev,
- "Failed to retrieve lpcpd-gpios from dts.\n");
- phy->io_lpcpd = -1;
- /*
- * lpcpd pin is not specified. This is not an issue as
- * power management can be also managed by TPM specific
- * commands. So leave with a success status code.
- */
- return 0;
- }
- /* GPIO request and configuration */
- ret = devm_gpio_request_one(&client->dev, gpio,
- GPIOF_OUT_INIT_HIGH, "TPM IO LPCPD");
- if (ret) {
- dev_err(&client->dev, "Failed to request lpcpd pin\n");
- return -ENODEV;
- }
- phy->io_lpcpd = gpio;
-
- return 0;
-}
-
-static int st33zp24_i2c_request_resources(struct i2c_client *client)
-{
- struct tpm_chip *chip = i2c_get_clientdata(client);
- struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
- struct st33zp24_i2c_phy *phy = tpm_dev->phy_id;
- struct st33zp24_platform_data *pdata;
- int ret;
-
- pdata = client->dev.platform_data;
- if (!pdata) {
- dev_err(&client->dev, "No platform data\n");
- return -ENODEV;
- }
-
- /* store for late use */
- phy->io_lpcpd = pdata->io_lpcpd;
-
- if (gpio_is_valid(pdata->io_lpcpd)) {
- ret = devm_gpio_request_one(&client->dev,
- pdata->io_lpcpd, GPIOF_OUT_INIT_HIGH,
- "TPM IO_LPCPD");
- if (ret) {
- dev_err(&client->dev, "Failed to request lpcpd pin\n");
- return ret;
- }
- }
-
- return 0;
-}
-
/*
* st33zp24_i2c_probe initialize the TPM device
* @param: client, the i2c_client description (TPM I2C description).
@@ -218,16 +104,8 @@ static int st33zp24_i2c_request_resources(struct i2c_client *client)
static int st33zp24_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
- int ret;
- struct st33zp24_platform_data *pdata;
struct st33zp24_i2c_phy *phy;
- if (!client) {
- pr_info("%s: i2c client is NULL. Device not accessible.\n",
- __func__);
- return -ENODEV;
- }
-
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
dev_info(&client->dev, "client not i2c capable\n");
return -ENODEV;
@@ -240,23 +118,7 @@ static int st33zp24_i2c_probe(struct i2c_client *client,
phy->client = client;
- pdata = client->dev.platform_data;
- if (!pdata && client->dev.of_node) {
- ret = st33zp24_i2c_of_request_resources(client);
- if (ret)
- return ret;
- } else if (pdata) {
- ret = st33zp24_i2c_request_resources(client);
- if (ret)
- return ret;
- } else if (ACPI_HANDLE(&client->dev)) {
- ret = st33zp24_i2c_acpi_request_resources(client);
- if (ret)
- return ret;
- }
-
- return st33zp24_probe(phy, &i2c_phy_ops, &client->dev, client->irq,
- phy->io_lpcpd);
+ return st33zp24_probe(phy, &i2c_phy_ops, &client->dev, client->irq);
}
/*
diff --git a/drivers/char/tpm/st33zp24/spi.c b/drivers/char/tpm/st33zp24/spi.c
index 22d184884694..2154059f0235 100644
--- a/drivers/char/tpm/st33zp24/spi.c
+++ b/drivers/char/tpm/st33zp24/spi.c
@@ -6,13 +6,9 @@
#include <linux/module.h>
#include <linux/spi/spi.h>
-#include <linux/gpio.h>
-#include <linux/gpio/consumer.h>
-#include <linux/of_irq.h>
-#include <linux/of_gpio.h>
+#include <linux/of.h>
#include <linux/acpi.h>
#include <linux/tpm.h>
-#include <linux/platform_data/st33zp24.h>
#include "../tpm.h"
#include "st33zp24.h"
@@ -61,7 +57,6 @@ struct st33zp24_spi_phy {
u8 tx_buf[ST33ZP24_SPI_BUFFER_SIZE];
u8 rx_buf[ST33ZP24_SPI_BUFFER_SIZE];
- int io_lpcpd;
int latency;
};
@@ -218,115 +213,6 @@ static const struct st33zp24_phy_ops spi_phy_ops = {
.recv = st33zp24_spi_recv,
};
-static const struct acpi_gpio_params lpcpd_gpios = { 1, 0, false };
-
-static const struct acpi_gpio_mapping acpi_st33zp24_gpios[] = {
- { "lpcpd-gpios", &lpcpd_gpios, 1 },
- {},
-};
-
-static int st33zp24_spi_acpi_request_resources(struct spi_device *spi_dev)
-{
- struct tpm_chip *chip = spi_get_drvdata(spi_dev);
- struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
- struct st33zp24_spi_phy *phy = tpm_dev->phy_id;
- struct gpio_desc *gpiod_lpcpd;
- struct device *dev = &spi_dev->dev;
- int ret;
-
- ret = devm_acpi_dev_add_driver_gpios(dev, acpi_st33zp24_gpios);
- if (ret)
- return ret;
-
- /* Get LPCPD GPIO from ACPI */
- gpiod_lpcpd = devm_gpiod_get(dev, "lpcpd", GPIOD_OUT_HIGH);
- if (IS_ERR(gpiod_lpcpd)) {
- dev_err(dev, "Failed to retrieve lpcpd-gpios from acpi.\n");
- phy->io_lpcpd = -1;
- /*
- * lpcpd pin is not specified. This is not an issue as
- * power management can be also managed by TPM specific
- * commands. So leave with a success status code.
- */
- return 0;
- }
-
- phy->io_lpcpd = desc_to_gpio(gpiod_lpcpd);
-
- return 0;
-}
-
-static int st33zp24_spi_of_request_resources(struct spi_device *spi_dev)
-{
- struct tpm_chip *chip = spi_get_drvdata(spi_dev);
- struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
- struct st33zp24_spi_phy *phy = tpm_dev->phy_id;
- struct device_node *pp;
- int gpio;
- int ret;
-
- pp = spi_dev->dev.of_node;
- if (!pp) {
- dev_err(&spi_dev->dev, "No platform data\n");
- return -ENODEV;
- }
-
- /* Get GPIO from device tree */
- gpio = of_get_named_gpio(pp, "lpcpd-gpios", 0);
- if (gpio < 0) {
- dev_err(&spi_dev->dev,
- "Failed to retrieve lpcpd-gpios from dts.\n");
- phy->io_lpcpd = -1;
- /*
- * lpcpd pin is not specified. This is not an issue as
- * power management can be also managed by TPM specific
- * commands. So leave with a success status code.
- */
- return 0;
- }
- /* GPIO request and configuration */
- ret = devm_gpio_request_one(&spi_dev->dev, gpio,
- GPIOF_OUT_INIT_HIGH, "TPM IO LPCPD");
- if (ret) {
- dev_err(&spi_dev->dev, "Failed to request lpcpd pin\n");
- return -ENODEV;
- }
- phy->io_lpcpd = gpio;
-
- return 0;
-}
-
-static int st33zp24_spi_request_resources(struct spi_device *dev)
-{
- struct tpm_chip *chip = spi_get_drvdata(dev);
- struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
- struct st33zp24_spi_phy *phy = tpm_dev->phy_id;
- struct st33zp24_platform_data *pdata;
- int ret;
-
- pdata = dev->dev.platform_data;
- if (!pdata) {
- dev_err(&dev->dev, "No platform data\n");
- return -ENODEV;
- }
-
- /* store for late use */
- phy->io_lpcpd = pdata->io_lpcpd;
-
- if (gpio_is_valid(pdata->io_lpcpd)) {
- ret = devm_gpio_request_one(&dev->dev,
- pdata->io_lpcpd, GPIOF_OUT_INIT_HIGH,
- "TPM IO_LPCPD");
- if (ret) {
- dev_err(&dev->dev, "%s : reset gpio_request failed\n",
- __FILE__);
- return ret;
- }
- }
-
- return 0;
-}
-
/*
* st33zp24_spi_probe initialize the TPM device
* @param: dev, the spi_device description (TPM SPI description).
@@ -335,17 +221,8 @@ static int st33zp24_spi_request_resources(struct spi_device *dev)
*/
static int st33zp24_spi_probe(struct spi_device *dev)
{
- int ret;
- struct st33zp24_platform_data *pdata;
struct st33zp24_spi_phy *phy;
- /* Check SPI platform functionnalities */
- if (!dev) {
- pr_info("%s: dev is NULL. Device is not accessible.\n",
- __func__);
- return -ENODEV;
- }
-
phy = devm_kzalloc(&dev->dev, sizeof(struct st33zp24_spi_phy),
GFP_KERNEL);
if (!phy)
@@ -353,27 +230,11 @@ static int st33zp24_spi_probe(struct spi_device *dev)
phy->spi_device = dev;
- pdata = dev->dev.platform_data;
- if (!pdata && dev->dev.of_node) {
- ret = st33zp24_spi_of_request_resources(dev);
- if (ret)
- return ret;
- } else if (pdata) {
- ret = st33zp24_spi_request_resources(dev);
- if (ret)
- return ret;
- } else if (ACPI_HANDLE(&dev->dev)) {
- ret = st33zp24_spi_acpi_request_resources(dev);
- if (ret)
- return ret;
- }
-
phy->latency = st33zp24_spi_evaluate_latency(phy);
if (phy->latency <= 0)
return -ENODEV;
- return st33zp24_probe(phy, &spi_phy_ops, &dev->dev, dev->irq,
- phy->io_lpcpd);
+ return st33zp24_probe(phy, &spi_phy_ops, &dev->dev, dev->irq);
}
/*
@@ -411,7 +272,7 @@ static SIMPLE_DEV_PM_OPS(st33zp24_spi_ops, st33zp24_pm_suspend,
static struct spi_driver st33zp24_spi_driver = {
.driver = {
- .name = TPM_ST33_SPI,
+ .name = "st33zp24-spi",
.pm = &st33zp24_spi_ops,
.of_match_table = of_match_ptr(of_st33zp24_spi_match),
.acpi_match_table = ACPI_PTR(st33zp24_spi_acpi_match),
diff --git a/drivers/char/tpm/st33zp24/st33zp24.c b/drivers/char/tpm/st33zp24/st33zp24.c
index 15b393e92c8e..a5b554cd4778 100644
--- a/drivers/char/tpm/st33zp24/st33zp24.c
+++ b/drivers/char/tpm/st33zp24/st33zp24.c
@@ -4,6 +4,7 @@
* Copyright (C) 2009 - 2016 STMicroelectronics
*/
+#include <linux/acpi.h>
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/kernel.h>
@@ -12,7 +13,7 @@
#include <linux/freezer.h>
#include <linux/string.h>
#include <linux/interrupt.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
#include <linux/sched.h>
#include <linux/uaccess.h>
#include <linux/io.h>
@@ -432,11 +433,18 @@ static const struct tpm_class_ops st33zp24_tpm = {
.req_canceled = st33zp24_req_canceled,
};
+static const struct acpi_gpio_params lpcpd_gpios = { 1, 0, false };
+
+static const struct acpi_gpio_mapping acpi_st33zp24_gpios[] = {
+ { "lpcpd-gpios", &lpcpd_gpios, 1 },
+ { },
+};
+
/*
* initialize the TPM device
*/
int st33zp24_probe(void *phy_id, const struct st33zp24_phy_ops *ops,
- struct device *dev, int irq, int io_lpcpd)
+ struct device *dev, int irq)
{
int ret;
u8 intmask = 0;
@@ -463,6 +471,25 @@ int st33zp24_probe(void *phy_id, const struct st33zp24_phy_ops *ops,
tpm_dev->locality = LOCALITY0;
+ if (ACPI_COMPANION(dev)) {
+ ret = devm_acpi_dev_add_driver_gpios(dev, acpi_st33zp24_gpios);
+ if (ret)
+ return ret;
+ }
+
+ /*
+ * Get LPCPD GPIO. If lpcpd pin is not specified. This is not an
+ * issue as power management can be also managed by TPM specific
+ * commands.
+ */
+ tpm_dev->io_lpcpd = devm_gpiod_get_optional(dev, "lpcpd",
+ GPIOD_OUT_HIGH);
+ ret = PTR_ERR_OR_ZERO(tpm_dev->io_lpcpd);
+ if (ret) {
+ dev_err(dev, "failed to request lpcpd gpio: %d\n", ret);
+ return ret;
+ }
+
if (irq) {
/* INTERRUPT Setup */
init_waitqueue_head(&tpm_dev->read_queue);
@@ -525,8 +552,8 @@ int st33zp24_pm_suspend(struct device *dev)
int ret = 0;
- if (gpio_is_valid(tpm_dev->io_lpcpd))
- gpio_set_value(tpm_dev->io_lpcpd, 0);
+ if (tpm_dev->io_lpcpd)
+ gpiod_set_value_cansleep(tpm_dev->io_lpcpd, 0);
else
ret = tpm_pm_suspend(dev);
@@ -540,8 +567,8 @@ int st33zp24_pm_resume(struct device *dev)
struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
int ret = 0;
- if (gpio_is_valid(tpm_dev->io_lpcpd)) {
- gpio_set_value(tpm_dev->io_lpcpd, 1);
+ if (tpm_dev->io_lpcpd) {
+ gpiod_set_value_cansleep(tpm_dev->io_lpcpd, 1);
ret = wait_for_stat(chip,
TPM_STS_VALID, chip->timeout_b,
&tpm_dev->read_queue, false);
diff --git a/drivers/char/tpm/st33zp24/st33zp24.h b/drivers/char/tpm/st33zp24/st33zp24.h
index b387a476c555..5acc85f711e6 100644
--- a/drivers/char/tpm/st33zp24/st33zp24.h
+++ b/drivers/char/tpm/st33zp24/st33zp24.h
@@ -7,6 +7,9 @@
#ifndef __LOCAL_ST33ZP24_H__
#define __LOCAL_ST33ZP24_H__
+#define TPM_ST33_I2C "st33zp24-i2c"
+#define TPM_ST33_SPI "st33zp24-spi"
+
#define TPM_WRITE_DIRECTION 0x80
#define ST33ZP24_BUFSIZE 2048
@@ -17,7 +20,7 @@ struct st33zp24_dev {
int locality;
int irq;
u32 intrs;
- int io_lpcpd;
+ struct gpio_desc *io_lpcpd;
wait_queue_head_t read_queue;
};
@@ -33,6 +36,6 @@ int st33zp24_pm_resume(struct device *dev);
#endif
int st33zp24_probe(void *phy_id, const struct st33zp24_phy_ops *ops,
- struct device *dev, int irq, int io_lpcpd);
+ struct device *dev, int irq);
void st33zp24_remove(struct tpm_chip *chip);
#endif /* __LOCAL_ST33ZP24_H__ */
diff --git a/drivers/char/tpm/tpm-chip.c b/drivers/char/tpm/tpm-chip.c
index 783d65fc71f0..741d8f3e8fb3 100644
--- a/drivers/char/tpm/tpm-chip.c
+++ b/drivers/char/tpm/tpm-chip.c
@@ -373,6 +373,11 @@ out:
}
EXPORT_SYMBOL_GPL(tpm_chip_alloc);
+static void tpm_put_device(void *dev)
+{
+ put_device(dev);
+}
+
/**
* tpmm_chip_alloc() - allocate a new struct tpm_chip instance
* @pdev: parent device to which the chip is associated
@@ -391,7 +396,7 @@ struct tpm_chip *tpmm_chip_alloc(struct device *pdev,
return chip;
rc = devm_add_action_or_reset(pdev,
- (void (*)(void *)) put_device,
+ tpm_put_device,
&chip->dev);
if (rc)
return ERR_PTR(rc);
diff --git a/drivers/char/tpm/tpm-dev-common.c b/drivers/char/tpm/tpm-dev-common.c
index dc4c0a0a5129..30b4c288c1bb 100644
--- a/drivers/char/tpm/tpm-dev-common.c
+++ b/drivers/char/tpm/tpm-dev-common.c
@@ -155,7 +155,7 @@ ssize_t tpm_common_read(struct file *file, char __user *buf,
out:
if (!priv->response_length) {
*off = 0;
- del_singleshot_timer_sync(&priv->user_read_timer);
+ del_timer_sync(&priv->user_read_timer);
flush_work(&priv->timeout_work);
}
mutex_unlock(&priv->buffer_mutex);
@@ -262,7 +262,7 @@ __poll_t tpm_common_poll(struct file *file, poll_table *wait)
void tpm_common_release(struct file *file, struct file_priv *priv)
{
flush_work(&priv->async_work);
- del_singleshot_timer_sync(&priv->user_read_timer);
+ del_timer_sync(&priv->user_read_timer);
flush_work(&priv->timeout_work);
file->private_data = NULL;
priv->response_length = 0;
diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c
index 1621ce818705..d69905233aff 100644
--- a/drivers/char/tpm/tpm-interface.c
+++ b/drivers/char/tpm/tpm-interface.c
@@ -401,13 +401,14 @@ int tpm_pm_suspend(struct device *dev)
!pm_suspend_via_firmware())
goto suspended;
- if (!tpm_chip_start(chip)) {
+ rc = tpm_try_get_ops(chip);
+ if (!rc) {
if (chip->flags & TPM_CHIP_FLAG_TPM2)
tpm2_shutdown(chip, TPM2_SU_STATE);
else
rc = tpm1_pm_suspend(chip, tpm_suspend_pcr);
- tpm_chip_stop(chip);
+ tpm_put_ops(chip);
}
suspended:
diff --git a/drivers/char/tpm/tpm_crb.c b/drivers/char/tpm/tpm_crb.c
index 18606651d1aa..7e9da671a0e8 100644
--- a/drivers/char/tpm/tpm_crb.c
+++ b/drivers/char/tpm/tpm_crb.c
@@ -252,7 +252,7 @@ static int __crb_relinquish_locality(struct device *dev,
iowrite32(CRB_LOC_CTRL_RELINQUISH, &priv->regs_h->loc_ctrl);
if (!crb_wait_for_reg_32(&priv->regs_h->loc_state, mask, value,
TPM2_TIMEOUT_C)) {
- dev_warn(dev, "TPM_LOC_STATE_x.requestAccess timed out\n");
+ dev_warn(dev, "TPM_LOC_STATE_x.Relinquish timed out\n");
return -ETIME;
}
@@ -676,12 +676,16 @@ static int crb_acpi_add(struct acpi_device *device)
/* Should the FIFO driver handle this? */
sm = buf->start_method;
- if (sm == ACPI_TPM2_MEMORY_MAPPED)
- return -ENODEV;
+ if (sm == ACPI_TPM2_MEMORY_MAPPED) {
+ rc = -ENODEV;
+ goto out;
+ }
priv = devm_kzalloc(dev, sizeof(struct crb_priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
+ if (!priv) {
+ rc = -ENOMEM;
+ goto out;
+ }
if (sm == ACPI_TPM2_COMMAND_BUFFER_WITH_ARM_SMC) {
if (buf->header.length < (sizeof(*buf) + sizeof(*crb_smc))) {
@@ -689,7 +693,8 @@ static int crb_acpi_add(struct acpi_device *device)
FW_BUG "TPM2 ACPI table has wrong size %u for start method type %d\n",
buf->header.length,
ACPI_TPM2_COMMAND_BUFFER_WITH_ARM_SMC);
- return -EINVAL;
+ rc = -EINVAL;
+ goto out;
}
crb_smc = ACPI_ADD_PTR(struct tpm2_crb_smc, buf, sizeof(*buf));
priv->smc_func_id = crb_smc->smc_func_id;
@@ -700,27 +705,31 @@ static int crb_acpi_add(struct acpi_device *device)
rc = crb_map_io(device, priv, buf);
if (rc)
- return rc;
+ goto out;
chip = tpmm_chip_alloc(dev, &tpm_crb);
- if (IS_ERR(chip))
- return PTR_ERR(chip);
+ if (IS_ERR(chip)) {
+ rc = PTR_ERR(chip);
+ goto out;
+ }
dev_set_drvdata(&chip->dev, priv);
chip->acpi_dev_handle = device->handle;
chip->flags = TPM_CHIP_FLAG_TPM2;
- return tpm_chip_register(chip);
+ rc = tpm_chip_register(chip);
+
+out:
+ acpi_put_table((struct acpi_table_header *)buf);
+ return rc;
}
-static int crb_acpi_remove(struct acpi_device *device)
+static void crb_acpi_remove(struct acpi_device *device)
{
struct device *dev = &device->dev;
struct tpm_chip *chip = dev_get_drvdata(dev);
tpm_chip_unregister(chip);
-
- return 0;
}
static const struct dev_pm_ops crb_pm = {
diff --git a/drivers/char/tpm/tpm_ftpm_tee.c b/drivers/char/tpm/tpm_ftpm_tee.c
index 5c233423c56f..deff23bb54bf 100644
--- a/drivers/char/tpm/tpm_ftpm_tee.c
+++ b/drivers/char/tpm/tpm_ftpm_tee.c
@@ -397,7 +397,13 @@ static int __init ftpm_mod_init(void)
if (rc)
return rc;
- return driver_register(&ftpm_tee_driver.driver);
+ rc = driver_register(&ftpm_tee_driver.driver);
+ if (rc) {
+ platform_driver_unregister(&ftpm_tee_plat_driver);
+ return rc;
+ }
+
+ return 0;
}
static void __exit ftpm_mod_exit(void)
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index bcff6429e0b4..ed5dabd3c72d 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -125,6 +125,7 @@ static int check_acpi_tpm2(struct device *dev)
const struct acpi_device_id *aid = acpi_match_device(tpm_acpi_tbl, dev);
struct acpi_table_tpm2 *tbl;
acpi_status st;
+ int ret = 0;
if (!aid || aid->driver_data != DEVICE_IS_TPM2)
return 0;
@@ -132,8 +133,7 @@ static int check_acpi_tpm2(struct device *dev)
/* If the ACPI TPM2 signature is matched then a global ACPI_SIG_TPM2
* table is mandatory
*/
- st =
- acpi_get_table(ACPI_SIG_TPM2, 1, (struct acpi_table_header **)&tbl);
+ st = acpi_get_table(ACPI_SIG_TPM2, 1, (struct acpi_table_header **)&tbl);
if (ACPI_FAILURE(st) || tbl->header.length < sizeof(*tbl)) {
dev_err(dev, FW_BUG "failed to get TPM2 ACPI table\n");
return -EINVAL;
@@ -141,9 +141,10 @@ static int check_acpi_tpm2(struct device *dev)
/* The tpm2_crb driver handles this device */
if (tbl->start_method != ACPI_TPM2_MEMORY_MAPPED)
- return -ENODEV;
+ ret = -ENODEV;
- return 0;
+ acpi_put_table((struct acpi_table_header *)tbl);
+ return ret;
}
#else
static int check_acpi_tpm2(struct device *dev)
diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c
index 757623bacfd5..3f98e587b3e8 100644
--- a/drivers/char/tpm/tpm_tis_core.c
+++ b/drivers/char/tpm/tpm_tis_core.c
@@ -682,15 +682,19 @@ static bool tpm_tis_req_canceled(struct tpm_chip *chip, u8 status)
{
struct tpm_tis_data *priv = dev_get_drvdata(&chip->dev);
- switch (priv->manufacturer_id) {
- case TPM_VID_WINBOND:
- return ((status == TPM_STS_VALID) ||
- (status == (TPM_STS_VALID | TPM_STS_COMMAND_READY)));
- case TPM_VID_STM:
- return (status == (TPM_STS_VALID | TPM_STS_COMMAND_READY));
- default:
- return (status == TPM_STS_COMMAND_READY);
+ if (!test_bit(TPM_TIS_DEFAULT_CANCELLATION, &priv->flags)) {
+ switch (priv->manufacturer_id) {
+ case TPM_VID_WINBOND:
+ return ((status == TPM_STS_VALID) ||
+ (status == (TPM_STS_VALID | TPM_STS_COMMAND_READY)));
+ case TPM_VID_STM:
+ return (status == (TPM_STS_VALID | TPM_STS_COMMAND_READY));
+ default:
+ break;
+ }
}
+
+ return status == TPM_STS_COMMAND_READY;
}
static irqreturn_t tis_int_handler(int dummy, void *dev_id)
diff --git a/drivers/char/tpm/tpm_tis_core.h b/drivers/char/tpm/tpm_tis_core.h
index 66a5a13cd1df..b68479e0de10 100644
--- a/drivers/char/tpm/tpm_tis_core.h
+++ b/drivers/char/tpm/tpm_tis_core.h
@@ -86,6 +86,7 @@ enum tis_defaults {
enum tpm_tis_flags {
TPM_TIS_ITPM_WORKAROUND = BIT(0),
TPM_TIS_INVALID_STATUS = BIT(1),
+ TPM_TIS_DEFAULT_CANCELLATION = BIT(2),
};
struct tpm_tis_data {
diff --git a/drivers/char/tpm/tpm_tis_i2c.c b/drivers/char/tpm/tpm_tis_i2c.c
index 0692510dfcab..f3a7251c8e38 100644
--- a/drivers/char/tpm/tpm_tis_i2c.c
+++ b/drivers/char/tpm/tpm_tis_i2c.c
@@ -49,7 +49,7 @@
/* Masks with bits that must be read zero */
#define TPM_ACCESS_READ_ZERO 0x48
-#define TPM_INT_ENABLE_ZERO 0x7FFFFF6
+#define TPM_INT_ENABLE_ZERO 0x7FFFFF60
#define TPM_STS_READ_ZERO 0x23
#define TPM_INTF_CAPABILITY_ZERO 0x0FFFF000
#define TPM_I2C_INTERFACE_CAPABILITY_ZERO 0x80000000
@@ -329,6 +329,7 @@ static int tpm_tis_i2c_probe(struct i2c_client *dev,
if (!phy->io_buf)
return -ENOMEM;
+ set_bit(TPM_TIS_DEFAULT_CANCELLATION, &phy->priv.flags);
phy->i2c_client = dev;
/* must precede all communication with the tpm */
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-13 11:09:28 +0300