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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * Copyright (C) 2015 Infineon Technologies AG4 * Copyright (C) 2016 STMicroelectronics SAS5 */6 7#ifndef TPM_TIS_SPI_H8#define TPM_TIS_SPI_H9 10#include "tpm_tis_core.h"11 12struct tpm_tis_spi_phy {13 struct tpm_tis_data priv;14 struct spi_device *spi_device;15 int (*flow_control)(struct tpm_tis_spi_phy *phy,16 struct spi_transfer *xfer);17 struct completion ready;18 unsigned long wake_after;19 20 u8 *iobuf;21};22 23static inline struct tpm_tis_spi_phy *to_tpm_tis_spi_phy(struct tpm_tis_data *data)24{25 return container_of(data, struct tpm_tis_spi_phy, priv);26}27 28extern int tpm_tis_spi_init(struct spi_device *spi, struct tpm_tis_spi_phy *phy,29 int irq, const struct tpm_tis_phy_ops *phy_ops);30 31extern int tpm_tis_spi_transfer(struct tpm_tis_data *data, u32 addr, u16 len,32 u8 *in, const u8 *out);33 34#ifdef CONFIG_TCG_TIS_SPI_CR5035extern int cr50_spi_probe(struct spi_device *spi);36#else37static inline int cr50_spi_probe(struct spi_device *spi)38{39 return -ENODEV;40}41#endif42 43#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_TCG_TIS_SPI_CR50)44extern int tpm_tis_spi_resume(struct device *dev);45#else46#define tpm_tis_spi_resume NULL47#endif48 49#endif50