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path: root/drivers/char/tpm/tpm_i2c_nuvoton.c
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Diffstat (limited to 'drivers/char/tpm/tpm_i2c_nuvoton.c')
-rw-r--r--drivers/char/tpm/tpm_i2c_nuvoton.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/char/tpm/tpm_i2c_nuvoton.c b/drivers/char/tpm/tpm_i2c_nuvoton.c
index 75a80e4662b2..2c1fa26cf976 100644
--- a/drivers/char/tpm/tpm_i2c_nuvoton.c
+++ b/drivers/char/tpm/tpm_i2c_nuvoton.c
@@ -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);
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