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tpm: drop int_queue from tpm_vendor_specific

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Drop field int_queue from tpm_vendor_specific as it is used only by
tpm_tis. Probably all of the fields should be eventually dropped and
moved to the private structures of different drivers but it is better to
do this one step at a time in order not to break anything.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
This commit is contained in:
Jarkko Sakkinen 2016-03-22 06:20:09 +02:00
parent c0dff1f451
commit ec5fd99d36
3 changed files with 12 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/char/tpm/tpm.h
View File

@ -148,7 +148,6 @@ struct tpm_vendor_specific {
void *priv;
wait_queue_head_t read_queue;
wait_queue_head_t int_queue;
u16 manufacturer_id;
};

1
drivers/char/tpm/tpm_i2c_nuvoton.c
View File

@ -540,7 +540,6 @@ static int i2c_nuvoton_probe(struct i2c_client *client,
return -ENOMEM;
init_waitqueue_head(&chip->vendor.read_queue);
init_waitqueue_head(&chip->vendor.int_queue);
/* Default timeouts */
chip->vendor.timeout_a = msecs_to_jiffies(TPM_I2C_SHORT_TIMEOUT);

19
drivers/char/tpm/tpm_tis.c
View File

@ -95,6 +95,7 @@ struct tpm_info {
struct priv_data {
bool irq_tested;
wait_queue_head_t int_queue;
};
#if defined(CONFIG_PNP) && defined(CONFIG_ACPI)
@ -157,6 +158,7 @@ static void release_locality(struct tpm_chip *chip, int l, int force)
static int request_locality(struct tpm_chip *chip, int l)
{
struct priv_data *priv = chip->vendor.priv;
unsigned long stop, timeout;
long rc;
@ -173,7 +175,7 @@ again:
timeout = stop - jiffies;
if ((long)timeout <= 0)
return -1;
rc = wait_event_interruptible_timeout(chip->vendor.int_queue,
rc = wait_event_interruptible_timeout(priv->int_queue,
(check_locality
(chip, l) >= 0),
timeout);
@ -249,6 +251,7 @@ static int recv_data(struct tpm_chip *chip, u8 *buf, size_t count)
static int tpm_tis_recv(struct tpm_chip *chip, u8 *buf, size_t count)
{
struct priv_data *priv = chip->vendor.priv;
int size = 0;
int expected, status;
@ -279,7 +282,7 @@ static int tpm_tis_recv(struct tpm_chip *chip, u8 *buf, size_t count)
}
wait_for_tpm_stat(chip, TPM_STS_VALID, chip->vendor.timeout_c,
&chip->vendor.int_queue, false);
&priv->int_queue, false);
status = tpm_tis_status(chip);
if (status & TPM_STS_DATA_AVAIL) { /* retry? */
dev_err(&chip->dev, "Error left over data\n");
@ -304,6 +307,7 @@ MODULE_PARM_DESC(itpm, "Force iTPM workarounds (found on some Lenovo laptops)");
*/
static int tpm_tis_send_data(struct tpm_chip *chip, u8 *buf, size_t len)
{
struct priv_data *priv = chip->vendor.priv;
int rc, status, burstcnt;
size_t count = 0;
@ -315,7 +319,7 @@ static int tpm_tis_send_data(struct tpm_chip *chip, u8 *buf, size_t len)
tpm_tis_ready(chip);
if (wait_for_tpm_stat
(chip, TPM_STS_COMMAND_READY, chip->vendor.timeout_b,
&chip->vendor.int_queue, false) < 0) {
&priv->int_queue, false) < 0) {
rc = -ETIME;
goto out_err;
}
@ -330,7 +334,7 @@ static int tpm_tis_send_data(struct tpm_chip *chip, u8 *buf, size_t len)
}
wait_for_tpm_stat(chip, TPM_STS_VALID, chip->vendor.timeout_c,
&chip->vendor.int_queue, false);
&priv->int_queue, false);
status = tpm_tis_status(chip);
if (!itpm && (status & TPM_STS_DATA_EXPECT) == 0) {
rc = -EIO;
@ -342,7 +346,7 @@ static int tpm_tis_send_data(struct tpm_chip *chip, u8 *buf, size_t len)
iowrite8(buf[count],
chip->vendor.iobase + TPM_DATA_FIFO(chip->vendor.locality));
wait_for_tpm_stat(chip, TPM_STS_VALID, chip->vendor.timeout_c,
&chip->vendor.int_queue, false);
&priv->int_queue, false);
status = tpm_tis_status(chip);
if ((status & TPM_STS_DATA_EXPECT) != 0) {
rc = -EIO;
@ -537,6 +541,7 @@ static const struct tpm_class_ops tpm_tis = {
static irqreturn_t tis_int_handler(int dummy, void *dev_id)
{
struct tpm_chip *chip = dev_id;
struct priv_data *priv = chip->vendor.priv;
u32 interrupt;
int i;
@ -556,7 +561,7 @@ static irqreturn_t tis_int_handler(int dummy, void *dev_id)
if (interrupt &
(TPM_INTF_LOCALITY_CHANGE_INT | TPM_INTF_STS_VALID_INT |
TPM_INTF_CMD_READY_INT))
wake_up_interruptible(&chip->vendor.int_queue);
wake_up_interruptible(&priv->int_queue);
/* Clear interrupts handled with TPM_EOI */
iowrite32(interrupt,
@ -768,7 +773,7 @@ static int tpm_tis_init(struct device *dev, struct tpm_info *tpm_info,
/* INTERRUPT Setup */
init_waitqueue_head(&chip->vendor.read_queue);
init_waitqueue_head(&chip->vendor.int_queue);
init_waitqueue_head(&priv->int_queue);
if (interrupts && tpm_info->irq != -1) {
if (tpm_info->irq) {
tpm_tis_probe_irq_single(chip, intmask, IRQF_SHARED,