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tpm: drop 'read_queue' from struct tpm_vendor_specific 

Dropped the field 'read_queue' from struct tpm_vendor_specific and make it
available to the various private structures in the drivers.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
This commit is contained in:
Christophe Ricard 2016-03-31 22:56:57 +02:00 committed by Jarkko Sakkinen
parent 570a36097f
commit 6e599f6f26
6 changed files with 27 additions and 22 deletions
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12
drivers/char/tpm/st33zp24/st33zp24.c
View File

@ -338,7 +338,7 @@ static int recv_data(struct tpm_chip *chip, u8 *buf, size_t count)
wait_for_stat(chip,
TPM_STS_DATA_AVAIL | TPM_STS_VALID,
chip->vendor.timeout_c,
&chip->vendor.read_queue, true) == 0) {
&tpm_dev->read_queue, true) == 0) {
burstcnt = get_burstcount(chip);
if (burstcnt < 0)
return burstcnt;
@ -367,7 +367,7 @@ static irqreturn_t tpm_ioserirq_handler(int irq, void *dev_id)
tpm_dev = (struct st33zp24_dev *)TPM_VPRIV(chip);
tpm_dev->intrs++;
wake_up_interruptible(&chip->vendor.read_queue);
wake_up_interruptible(&tpm_dev->read_queue);
disable_irq_nosync(tpm_dev->irq);
return IRQ_HANDLED;
@ -407,7 +407,7 @@ static int st33zp24_send(struct tpm_chip *chip, unsigned char *buf,
st33zp24_cancel(chip);
if (wait_for_stat
(chip, TPM_STS_COMMAND_READY, chip->vendor.timeout_b,
&chip->vendor.read_queue, false) < 0) {
&tpm_dev->read_queue, false) < 0) {
ret = -ETIME;
goto out_err;
}
@ -453,7 +453,7 @@ static int st33zp24_send(struct tpm_chip *chip, unsigned char *buf,
ret = wait_for_stat(chip, TPM_STS_DATA_AVAIL | TPM_STS_VALID,
tpm_calc_ordinal_duration(chip, ordinal),
&chip->vendor.read_queue, false);
&tpm_dev->read_queue, false);
if (ret < 0)
goto out_err;
}
@ -570,7 +570,7 @@ int st33zp24_probe(void *phy_id, const struct st33zp24_phy_ops *ops,
if (irq) {
/* INTERRUPT Setup */
init_waitqueue_head(&chip->vendor.read_queue);
init_waitqueue_head(&tpm_dev->read_queue);
tpm_dev->intrs = 0;
if (request_locality(chip) != LOCALITY0) {
@ -674,7 +674,7 @@ int st33zp24_pm_resume(struct device *dev)
gpio_set_value(tpm_dev->io_lpcpd, 1);
ret = wait_for_stat(chip,
TPM_STS_VALID, chip->vendor.timeout_b,
&chip->vendor.read_queue, false);
&tpm_dev->read_queue, false);
} else {
ret = tpm_pm_resume(dev);
if (!ret)

1
drivers/char/tpm/st33zp24/st33zp24.h
View File

@ -28,6 +28,7 @@ struct st33zp24_dev {
int irq;
u32 intrs;
int io_lpcpd;
wait_queue_head_t read_queue;
};

2
drivers/char/tpm/tpm.h
View File

@ -137,8 +137,6 @@ struct tpm_vendor_specific {
unsigned long duration[3]; /* jiffies */
bool duration_adjusted;
void *priv;
wait_queue_head_t read_queue;
};
#define TPM_VPRIV(c) ((c)->vendor.priv)

14
drivers/char/tpm/tpm_i2c_nuvoton.c
View File

@ -57,6 +57,7 @@
struct priv_data {
int irq;
unsigned int intrs;
wait_queue_head_t read_queue;
};
static s32 i2c_nuvoton_read_buf(struct i2c_client *client, u8 offset, u8 size,
@ -232,13 +233,14 @@ static int i2c_nuvoton_wait_for_data_avail(struct tpm_chip *chip, u32 timeout,
static int i2c_nuvoton_recv_data(struct i2c_client *client,
struct tpm_chip *chip, u8 *buf, size_t count)
{
struct priv_data *priv = chip->vendor.priv;
s32 rc;
int burst_count, bytes2read, size = 0;
while (size < count &&
i2c_nuvoton_wait_for_data_avail(chip,
chip->vendor.timeout_c,
&chip->vendor.read_queue) == 0) {
&priv->read_queue) == 0) {
burst_count = i2c_nuvoton_get_burstcount(client, chip);
if (burst_count < 0) {
dev_err(&chip->dev,
@ -265,6 +267,7 @@ static int i2c_nuvoton_recv_data(struct i2c_client *client,
/* Read TPM command results */
static int i2c_nuvoton_recv(struct tpm_chip *chip, u8 *buf, size_t count)
{
struct priv_data *priv = chip->vendor.priv;
struct device *dev = chip->dev.parent;
struct i2c_client *client = to_i2c_client(dev);
s32 rc;
@ -286,7 +289,7 @@ static int i2c_nuvoton_recv(struct tpm_chip *chip, u8 *buf, size_t count)
* tag, paramsize, and result
*/
status = i2c_nuvoton_wait_for_data_avail(
chip, chip->vendor.timeout_c, &chip->vendor.read_queue);
chip, chip->vendor.timeout_c, &priv->read_queue);
if (status != 0) {
dev_err(dev, "%s() timeout on dataAvail\n", __func__);
size = -ETIMEDOUT;
@ -348,6 +351,7 @@ static int i2c_nuvoton_recv(struct tpm_chip *chip, u8 *buf, size_t count)
*/
static int i2c_nuvoton_send(struct tpm_chip *chip, u8 *buf, size_t len)
{
struct priv_data *priv = chip->vendor.priv;
struct device *dev = chip->dev.parent;
struct i2c_client *client = to_i2c_client(dev);
u32 ordinal;
@ -440,7 +444,7 @@ static int i2c_nuvoton_send(struct tpm_chip *chip, u8 *buf, size_t len)
rc = i2c_nuvoton_wait_for_data_avail(chip,
tpm_calc_ordinal_duration(chip,
ordinal),
&chip->vendor.read_queue);
&priv->read_queue);
if (rc) {
dev_err(dev, "%s() timeout command duration\n", __func__);
i2c_nuvoton_ready(chip);
@ -477,7 +481,7 @@ static irqreturn_t i2c_nuvoton_int_handler(int dummy, void *dev_id)
struct priv_data *priv = chip->vendor.priv;
priv->intrs++;
wake_up(&chip->vendor.read_queue);
wake_up(&priv->read_queue);
disable_irq_nosync(priv->irq);
return IRQ_HANDLED;
}
@ -541,7 +545,7 @@ static int i2c_nuvoton_probe(struct i2c_client *client,
return -ENOMEM;
chip->vendor.priv = priv;
init_waitqueue_head(&chip->vendor.read_queue);
init_waitqueue_head(&priv->read_queue);
/* Default timeouts */
chip->vendor.timeout_a = msecs_to_jiffies(TPM_I2C_SHORT_TIMEOUT);

9
drivers/char/tpm/tpm_tis.c
View File

@ -99,6 +99,7 @@ struct priv_data {
int irq;
bool irq_tested;
wait_queue_head_t int_queue;
wait_queue_head_t read_queue;
};
#if defined(CONFIG_PNP) && defined(CONFIG_ACPI)
@ -252,7 +253,7 @@ static int recv_data(struct tpm_chip *chip, u8 *buf, size_t count)
wait_for_tpm_stat(chip,
TPM_STS_DATA_AVAIL | TPM_STS_VALID,
chip->vendor.timeout_c,
&chip->vendor.read_queue, true)
&priv->read_queue, true)
== 0) {
burstcnt = get_burstcount(chip);
for (; burstcnt > 0 && size < count; burstcnt--)
@ -421,7 +422,7 @@ static int tpm_tis_send_main(struct tpm_chip *chip, u8 *buf, size_t len)
if (wait_for_tpm_stat
(chip, TPM_STS_DATA_AVAIL | TPM_STS_VALID, dur,
&chip->vendor.read_queue, false) < 0) {
&priv->read_queue, false) < 0) {
rc = -ETIME;
goto out_err;
}
@ -575,7 +576,7 @@ static irqreturn_t tis_int_handler(int dummy, void *dev_id)
((struct priv_data *)chip->vendor.priv)->irq_tested = true;
if (interrupt & TPM_INTF_DATA_AVAIL_INT)
wake_up_interruptible(&chip->vendor.read_queue);
wake_up_interruptible(&priv->read_queue);
if (interrupt & TPM_INTF_LOCALITY_CHANGE_INT)
for (i = 0; i < 5; i++)
if (check_locality(chip, i) >= 0)
@ -795,7 +796,7 @@ 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(&priv->read_queue);
init_waitqueue_head(&priv->int_queue);
if (interrupts && tpm_info->irq != -1) {
if (tpm_info->irq) {

11
drivers/char/tpm/xen-tpmfront.c
View File

@ -29,6 +29,7 @@ struct tpm_private {
int ring_ref;
domid_t backend_id;
int irq;
wait_queue_head_t read_queue;
};
enum status_bits {
@ -89,7 +90,7 @@ static int vtpm_send(struct tpm_chip *chip, u8 *buf, size_t count)
/* Wait for completion of any existing command or cancellation */
if (wait_for_tpm_stat(chip, VTPM_STATUS_IDLE, chip->vendor.timeout_c,
&chip->vendor.read_queue, true) < 0) {
&priv->read_queue, true) < 0) {
vtpm_cancel(chip);
return -ETIME;
}
@ -105,7 +106,7 @@ static int vtpm_send(struct tpm_chip *chip, u8 *buf, size_t count)
duration = tpm_calc_ordinal_duration(chip, ordinal);
if (wait_for_tpm_stat(chip, VTPM_STATUS_IDLE, duration,
&chip->vendor.read_queue, true) < 0) {
&priv->read_queue, true) < 0) {
/* got a signal or timeout, try to cancel */
vtpm_cancel(chip);
return -ETIME;
@ -126,7 +127,7 @@ static int vtpm_recv(struct tpm_chip *chip, u8 *buf, size_t count)
/* In theory the wait at the end of _send makes this one unnecessary */
if (wait_for_tpm_stat(chip, VTPM_STATUS_RESULT, chip->vendor.timeout_c,
&chip->vendor.read_queue, true) < 0) {
&priv->read_queue, true) < 0) {
vtpm_cancel(chip);
return -ETIME;
}
@ -162,7 +163,7 @@ static irqreturn_t tpmif_interrupt(int dummy, void *dev_id)
switch (priv->shr->state) {
case VTPM_STATE_IDLE:
case VTPM_STATE_FINISH:
wake_up_interruptible(&priv->chip->vendor.read_queue);
wake_up_interruptible(&priv->read_queue);
break;
case VTPM_STATE_SUBMIT:
case VTPM_STATE_CANCEL:
@ -180,7 +181,7 @@ static int setup_chip(struct device *dev, struct tpm_private *priv)
if (IS_ERR(chip))
return PTR_ERR(chip);
init_waitqueue_head(&chip->vendor.read_queue);
init_waitqueue_head(&priv->read_queue);
priv->chip = chip;
TPM_VPRIV(chip) = priv;