18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-only */ 28c2ecf20Sopenharmony_ci/* 38c2ecf20Sopenharmony_ci * Copyright (C) 2015 Infineon Technologies AG 48c2ecf20Sopenharmony_ci * Copyright (C) 2016 STMicroelectronics SAS 58c2ecf20Sopenharmony_ci */ 68c2ecf20Sopenharmony_ci 78c2ecf20Sopenharmony_ci#ifndef TPM_TIS_SPI_H 88c2ecf20Sopenharmony_ci#define TPM_TIS_SPI_H 98c2ecf20Sopenharmony_ci 108c2ecf20Sopenharmony_ci#include "tpm_tis_core.h" 118c2ecf20Sopenharmony_ci 128c2ecf20Sopenharmony_cistruct tpm_tis_spi_phy { 138c2ecf20Sopenharmony_ci struct tpm_tis_data priv; 148c2ecf20Sopenharmony_ci struct spi_device *spi_device; 158c2ecf20Sopenharmony_ci int (*flow_control)(struct tpm_tis_spi_phy *phy, 168c2ecf20Sopenharmony_ci struct spi_transfer *xfer); 178c2ecf20Sopenharmony_ci struct completion ready; 188c2ecf20Sopenharmony_ci unsigned long wake_after; 198c2ecf20Sopenharmony_ci 208c2ecf20Sopenharmony_ci u8 *iobuf; 218c2ecf20Sopenharmony_ci}; 228c2ecf20Sopenharmony_ci 238c2ecf20Sopenharmony_cistatic inline struct tpm_tis_spi_phy *to_tpm_tis_spi_phy(struct tpm_tis_data *data) 248c2ecf20Sopenharmony_ci{ 258c2ecf20Sopenharmony_ci return container_of(data, struct tpm_tis_spi_phy, priv); 268c2ecf20Sopenharmony_ci} 278c2ecf20Sopenharmony_ci 288c2ecf20Sopenharmony_ciextern int tpm_tis_spi_init(struct spi_device *spi, struct tpm_tis_spi_phy *phy, 298c2ecf20Sopenharmony_ci int irq, const struct tpm_tis_phy_ops *phy_ops); 308c2ecf20Sopenharmony_ci 318c2ecf20Sopenharmony_ciextern int tpm_tis_spi_transfer(struct tpm_tis_data *data, u32 addr, u16 len, 328c2ecf20Sopenharmony_ci u8 *in, const u8 *out); 338c2ecf20Sopenharmony_ci 348c2ecf20Sopenharmony_ciextern int tpm_tis_spi_read16(struct tpm_tis_data *data, u32 addr, u16 *result); 358c2ecf20Sopenharmony_ciextern int tpm_tis_spi_read32(struct tpm_tis_data *data, u32 addr, u32 *result); 368c2ecf20Sopenharmony_ciextern int tpm_tis_spi_write32(struct tpm_tis_data *data, u32 addr, u32 value); 378c2ecf20Sopenharmony_ci 388c2ecf20Sopenharmony_ci#ifdef CONFIG_TCG_TIS_SPI_CR50 398c2ecf20Sopenharmony_ciextern int cr50_spi_probe(struct spi_device *spi); 408c2ecf20Sopenharmony_ci#else 418c2ecf20Sopenharmony_cistatic inline int cr50_spi_probe(struct spi_device *spi) 428c2ecf20Sopenharmony_ci{ 438c2ecf20Sopenharmony_ci return -ENODEV; 448c2ecf20Sopenharmony_ci} 458c2ecf20Sopenharmony_ci#endif 468c2ecf20Sopenharmony_ci 478c2ecf20Sopenharmony_ci#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_TCG_TIS_SPI_CR50) 488c2ecf20Sopenharmony_ciextern int tpm_tis_spi_resume(struct device *dev); 498c2ecf20Sopenharmony_ci#else 508c2ecf20Sopenharmony_ci#define tpm_tis_spi_resume NULL 518c2ecf20Sopenharmony_ci#endif 528c2ecf20Sopenharmony_ci 538c2ecf20Sopenharmony_ci#endif 54