1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * STMicroelectronics TPM Linux driver for TPM ST33ZP24 4 * Copyright (C) 2009 - 2016 STMicroelectronics 5 */ 6 7 #ifndef __LOCAL_ST33ZP24_H__ 8 #define __LOCAL_ST33ZP24_H__ 9 10 #define TPM_ST33_I2C "st33zp24-i2c" 11 #define TPM_ST33_SPI "st33zp24-spi" 12 13 #define TPM_WRITE_DIRECTION 0x80 14 #define ST33ZP24_BUFSIZE 2048 15 16 struct st33zp24_dev { 17 struct tpm_chip *chip; 18 void *phy_id; 19 const struct st33zp24_phy_ops *ops; 20 int locality; 21 int irq; 22 u32 intrs; 23 struct gpio_desc *io_lpcpd; 24 wait_queue_head_t read_queue; 25 }; 26 27 28 struct st33zp24_phy_ops { 29 int (*send)(void *phy_id, u8 tpm_register, u8 *tpm_data, int tpm_size); 30 int (*recv)(void *phy_id, u8 tpm_register, u8 *tpm_data, int tpm_size); 31 }; 32 33 #ifdef CONFIG_PM_SLEEP 34 int st33zp24_pm_suspend(struct device *dev); 35 int st33zp24_pm_resume(struct device *dev); 36 #endif 37 38 int st33zp24_probe(void *phy_id, const struct st33zp24_phy_ops *ops, 39 struct device *dev, int irq); 40 void st33zp24_remove(struct tpm_chip *chip); 41 #endif /* __LOCAL_ST33ZP24_H__ */ 42