forked from Minki/linux
tpm/tpm_i2c_stm_st33: Few code cleanup
Cleanup code indentation, braces, test variable when NULL. Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
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@ -26,7 +26,7 @@
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*
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*
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* @Synopsis:
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* @Synopsis:
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* 09/15/2010: First shot driver tpm_tis driver for
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* 09/15/2010: First shot driver tpm_tis driver for
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lpc is used as model.
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* lpc is used as model.
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*/
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*/
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#include <linux/pci.h>
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#include <linux/pci.h>
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@ -393,7 +393,7 @@ static int wait_for_stat(struct tpm_chip *chip, u8 mask, unsigned long timeout,
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long ret;
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long ret;
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u8 status;
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u8 status;
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if (chip->vendor.irq) {
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if (chip->vendor.irq) {
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ret = wait_for_serirq_timeout(chip, ((tpm_stm_i2c_status
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ret = wait_for_serirq_timeout(chip, ((tpm_stm_i2c_status
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(chip) & mask) ==
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(chip) & mask) ==
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mask), timeout);
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mask), timeout);
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@ -429,8 +429,7 @@ static int recv_data(struct tpm_chip *chip, u8 *buf, size_t count)
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wait_for_stat(chip,
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wait_for_stat(chip,
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TPM_STS_DATA_AVAIL | TPM_STS_VALID,
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TPM_STS_DATA_AVAIL | TPM_STS_VALID,
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chip->vendor.timeout_c,
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chip->vendor.timeout_c,
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&chip->vendor.read_queue)
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&chip->vendor.read_queue) == 0) {
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== 0) {
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burstcnt = get_burstcount(chip);
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burstcnt = get_burstcount(chip);
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if (burstcnt < 0)
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if (burstcnt < 0)
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return burstcnt;
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return burstcnt;
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@ -482,7 +481,7 @@ static int tpm_stm_i2c_send(struct tpm_chip *chip, unsigned char *buf,
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struct i2c_client *client;
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struct i2c_client *client;
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struct tpm_stm_dev *tpm_dev;
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struct tpm_stm_dev *tpm_dev;
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if (chip == NULL)
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if (!chip)
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return -EBUSY;
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return -EBUSY;
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if (len < TPM_HEADER_SIZE)
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if (len < TPM_HEADER_SIZE)
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return -EBUSY;
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return -EBUSY;
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@ -559,7 +558,7 @@ static int tpm_stm_i2c_recv(struct tpm_chip *chip, unsigned char *buf,
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int size = 0;
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int size = 0;
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int expected;
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int expected;
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if (chip == NULL)
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if (!chip)
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return -EBUSY;
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return -EBUSY;
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if (count < TPM_HEADER_SIZE) {
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if (count < TPM_HEADER_SIZE) {
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@ -580,7 +579,7 @@ static int tpm_stm_i2c_recv(struct tpm_chip *chip, unsigned char *buf,
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}
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}
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size += recv_data(chip, &buf[TPM_HEADER_SIZE],
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size += recv_data(chip, &buf[TPM_HEADER_SIZE],
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expected - TPM_HEADER_SIZE);
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expected - TPM_HEADER_SIZE);
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if (size < expected) {
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if (size < expected) {
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dev_err(chip->dev, "Unable to read remainder of result\n");
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dev_err(chip->dev, "Unable to read remainder of result\n");
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size = -ETIME;
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size = -ETIME;
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@ -662,9 +661,9 @@ static int tpm_stm_i2c_request_resources(struct i2c_client *client,
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int ret;
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int ret;
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pdata = client->dev.platform_data;
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pdata = client->dev.platform_data;
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if (pdata == NULL) {
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if (!pdata) {
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pr_err("No platform data\n");
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dev_err(chip->dev, "No platform data\n");
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return -EINVAL;
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return -ENODEV;
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}
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}
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/* store for late use */
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/* store for late use */
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@ -695,13 +694,13 @@ static int
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tpm_stm_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
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tpm_stm_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
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{
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{
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int ret;
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int ret;
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u8 intmask;
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u8 intmask = 0;
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struct tpm_chip *chip;
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struct tpm_chip *chip;
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struct st33zp24_platform_data *platform_data;
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struct st33zp24_platform_data *platform_data;
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struct tpm_stm_dev *tpm_dev;
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struct tpm_stm_dev *tpm_dev;
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if (client == NULL) {
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if (!client) {
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pr_info("%s: i2c client is NULL. Device not accessible.\n",
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dev_info(&client->dev, "%s: i2c client is NULL. Device not accessible.\n",
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__func__);
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__func__);
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return -ENODEV;
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return -ENODEV;
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}
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}
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@ -805,7 +804,7 @@ _tpm_clean_answer:
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/*
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/*
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* tpm_stm_i2c_remove remove the TPM device
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* tpm_stm_i2c_remove remove the TPM device
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* @param: client, the i2c_client drescription (TPM I2C description).
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* @param: client, the i2c_client drescription (TPM I2C description).
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clear_bit(0, &chip->is_open);
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* clear_bit(0, &chip->is_open);
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* @return: 0 in case of success.
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* @return: 0 in case of success.
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*/
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*/
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static int tpm_stm_i2c_remove(struct i2c_client *client)
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static int tpm_stm_i2c_remove(struct i2c_client *client)
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@ -835,6 +834,7 @@ static int tpm_stm_i2c_pm_suspend(struct device *dev)
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gpio_set_value(pin_infos->io_lpcpd, 0);
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gpio_set_value(pin_infos->io_lpcpd, 0);
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else
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else
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ret = tpm_pm_suspend(dev);
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ret = tpm_pm_suspend(dev);
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return ret;
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return ret;
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} /* tpm_stm_i2c_suspend() */
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} /* tpm_stm_i2c_suspend() */
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@ -869,6 +869,7 @@ static const struct i2c_device_id tpm_stm_i2c_id[] = {
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{TPM_ST33_I2C, 0},
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{TPM_ST33_I2C, 0},
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{}
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{}
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};
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};
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MODULE_DEVICE_TABLE(i2c, tpm_stm_i2c_id);
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#ifdef CONFIG_OF
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#ifdef CONFIG_OF
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static const struct of_device_id of_st33zp24_i2c_match[] = {
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static const struct of_device_id of_st33zp24_i2c_match[] = {
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@ -878,7 +879,6 @@ static const struct of_device_id of_st33zp24_i2c_match[] = {
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MODULE_DEVICE_TABLE(of, of_st33zp24_i2c_match);
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MODULE_DEVICE_TABLE(of, of_st33zp24_i2c_match);
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#endif
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#endif
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MODULE_DEVICE_TABLE(i2c, tpm_stm_i2c_id);
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static SIMPLE_DEV_PM_OPS(tpm_stm_i2c_ops, tpm_stm_i2c_pm_suspend,
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static SIMPLE_DEV_PM_OPS(tpm_stm_i2c_ops, tpm_stm_i2c_pm_suspend,
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tpm_stm_i2c_pm_resume);
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tpm_stm_i2c_pm_resume);
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static struct i2c_driver tpm_stm_i2c_driver = {
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static struct i2c_driver tpm_stm_i2c_driver = {
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@ -887,7 +887,7 @@ static struct i2c_driver tpm_stm_i2c_driver = {
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.name = TPM_ST33_I2C,
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.name = TPM_ST33_I2C,
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.pm = &tpm_stm_i2c_ops,
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.pm = &tpm_stm_i2c_ops,
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.of_match_table = of_match_ptr(of_st33zp24_i2c_match),
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.of_match_table = of_match_ptr(of_st33zp24_i2c_match),
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},
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},
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.probe = tpm_stm_i2c_probe,
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.probe = tpm_stm_i2c_probe,
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.remove = tpm_stm_i2c_remove,
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.remove = tpm_stm_i2c_remove,
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.id_table = tpm_stm_i2c_id
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.id_table = tpm_stm_i2c_id
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