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tpmdd updates for Linux v5.8-rc4

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Merge tag 'tpmdd-next-v5.8-rc4' of git://git.infradead.org/users/jjs/linux-tpmdd

Pull tpm fixes from Jarkko Sakkinen:
 "These are just fixes for bugs found lately.

  All of them are small scale things here and there, and all of them are
  for previous kernel releases (the oldest appeared in v2.6.17)"

* tag 'tpmdd-next-v5.8-rc4' of git://git.infradead.org/users/jjs/linux-tpmdd:
  tpm_tis: Remove the HID IFX0102
  tpm_tis_spi: Prefer async probe
  tpm: ibmvtpm: Wait for ready buffer before probing for TPM2 attributes
  tpm/st33zp24: fix spelling mistake "drescription" -> "description"
  tpm_tis: extra chip->ops check on error path in tpm_tis_core_init
  tpm_tis_spi: Don't send anything during flow control
  tpm: Fix TIS locality timeout problems
This commit is contained in:
Linus Torvalds 2020-07-02 22:36:19 -07:00
commit 0c7415c31e
8 changed files with 26 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/char/tpm/st33zp24/i2c.c
View File

@ -210,7 +210,7 @@ static int st33zp24_i2c_request_resources(struct i2c_client *client)
/*
* st33zp24_i2c_probe initialize the TPM device
* @param: client, the i2c_client drescription (TPM I2C description).
* @param: client, the i2c_client description (TPM I2C description).
* @param: id, the i2c_device_id struct.
* @return: 0 in case of success.
* -1 in other case.

4
drivers/char/tpm/st33zp24/spi.c
View File

@ -329,7 +329,7 @@ static int st33zp24_spi_request_resources(struct spi_device *dev)
/*
* st33zp24_spi_probe initialize the TPM device
* @param: dev, the spi_device drescription (TPM SPI description).
* @param: dev, the spi_device description (TPM SPI description).
* @return: 0 in case of success.
* or a negative value describing the error.
*/
@ -378,7 +378,7 @@ static int st33zp24_spi_probe(struct spi_device *dev)
/*
* st33zp24_spi_remove remove the TPM device
* @param: client, the spi_device drescription (TPM SPI description).
* @param: client, the spi_device description (TPM SPI description).
* @return: 0 in case of success.
*/
static int st33zp24_spi_remove(struct spi_device *dev)

2
drivers/char/tpm/st33zp24/st33zp24.c
View File

@ -502,7 +502,7 @@ static const struct tpm_class_ops st33zp24_tpm = {
/*
* st33zp24_probe initialize the TPM device
* @param: client, the i2c_client drescription (TPM I2C description).
* @param: client, the i2c_client description (TPM I2C description).
* @param: id, the i2c_device_id struct.
* @return: 0 in case of success.
* -1 in other case.

19
drivers/char/tpm/tpm-dev-common.c
View File

@ -189,15 +189,6 @@ ssize_t tpm_common_write(struct file *file, const char __user *buf,
goto out;
}
/* atomic tpm command send and result receive. We only hold the ops
* lock during this period so that the tpm can be unregistered even if
* the char dev is held open.
*/
if (tpm_try_get_ops(priv->chip)) {
ret = -EPIPE;
goto out;
}
priv->response_length = 0;
priv->response_read = false;
*off = 0;
@ -211,11 +202,19 @@ ssize_t tpm_common_write(struct file *file, const char __user *buf,
if (file->f_flags & O_NONBLOCK) {
priv->command_enqueued = true;
queue_work(tpm_dev_wq, &priv->async_work);
tpm_put_ops(priv->chip);
mutex_unlock(&priv->buffer_mutex);
return size;
}
/* atomic tpm command send and result receive. We only hold the ops
* lock during this period so that the tpm can be unregistered even if
* the char dev is held open.
*/
if (tpm_try_get_ops(priv->chip)) {
ret = -EPIPE;
goto out;
}
ret = tpm_dev_transmit(priv->chip, priv->space, priv->data_buffer,
sizeof(priv->data_buffer));
tpm_put_ops(priv->chip);

14
drivers/char/tpm/tpm_ibmvtpm.c
View File

@ -683,13 +683,6 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev,
if (rc)
goto init_irq_cleanup;
if (!strcmp(id->compat, "IBM,vtpm20")) {
chip->flags |= TPM_CHIP_FLAG_TPM2;
rc = tpm2_get_cc_attrs_tbl(chip);
if (rc)
goto init_irq_cleanup;
}
if (!wait_event_timeout(ibmvtpm->crq_queue.wq,
ibmvtpm->rtce_buf != NULL,
HZ)) {
@ -697,6 +690,13 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev,
goto init_irq_cleanup;
}
if (!strcmp(id->compat, "IBM,vtpm20")) {
chip->flags |= TPM_CHIP_FLAG_TPM2;
rc = tpm2_get_cc_attrs_tbl(chip);
if (rc)
goto init_irq_cleanup;
}
return tpm_chip_register(chip);
init_irq_cleanup:
do {

1
drivers/char/tpm/tpm_tis.c
View File

@ -238,7 +238,6 @@ static int tpm_tis_pnp_init(struct pnp_dev *pnp_dev,
static struct pnp_device_id tpm_pnp_tbl[] = {
{"PNP0C31", 0}, /* TPM */
{"ATM1200", 0}, /* Atmel */
{"IFX0102", 0}, /* Infineon */
{"BCM0101", 0}, /* Broadcom */
{"BCM0102", 0}, /* Broadcom */
{"NSC1200", 0}, /* National */

2
drivers/char/tpm/tpm_tis_core.c
View File

@ -1085,7 +1085,7 @@ int tpm_tis_core_init(struct device *dev, struct tpm_tis_data *priv, int irq,
return 0;
out_err:
if ((chip->ops != NULL) && (chip->ops->clk_enable != NULL))
if (chip->ops->clk_enable != NULL)
chip->ops->clk_enable(chip, false);
tpm_tis_remove(chip);

10
drivers/char/tpm/tpm_tis_spi_main.c
View File

@ -53,8 +53,6 @@ static int tpm_tis_spi_flow_control(struct tpm_tis_spi_phy *phy,
if ((phy->iobuf[3] & 0x01) == 0) {
// handle SPI wait states
phy->iobuf[0] = 0;
for (i = 0; i < TPM_RETRY; i++) {
spi_xfer->len = 1;
spi_message_init(&m);
@ -104,6 +102,8 @@ int tpm_tis_spi_transfer(struct tpm_tis_data *data, u32 addr, u16 len,
if (ret < 0)
goto exit;
/* Flow control transfers are receive only */
spi_xfer.tx_buf = NULL;
ret = phy->flow_control(phy, &spi_xfer);
if (ret < 0)
goto exit;
@ -113,9 +113,8 @@ int tpm_tis_spi_transfer(struct tpm_tis_data *data, u32 addr, u16 len,
spi_xfer.delay.value = 5;
spi_xfer.delay.unit = SPI_DELAY_UNIT_USECS;
if (in) {
spi_xfer.tx_buf = NULL;
} else if (out) {
if (out) {
spi_xfer.tx_buf = phy->iobuf;
spi_xfer.rx_buf = NULL;
memcpy(phy->iobuf, out, transfer_len);
out += transfer_len;
@ -288,6 +287,7 @@ static struct spi_driver tpm_tis_spi_driver = {
.pm = &tpm_tis_pm,
.of_match_table = of_match_ptr(of_tis_spi_match),
.acpi_match_table = ACPI_PTR(acpi_tis_spi_match),
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = tpm_tis_spi_driver_probe,
.remove = tpm_tis_spi_remove,