57 lines · c
1/* SPDX-License-Identifier: GPL-2.02 *3 * tcan4x5x - Texas Instruments TCAN4x5x Family CAN controller driver4 *5 * Copyright (c) 2020 Pengutronix,6 * Marc Kleine-Budde <kernel@pengutronix.de>7 */8 9#ifndef _TCAN4X5X_H10#define _TCAN4X5X_H11 12#include <linux/gpio/consumer.h>13#include <linux/regmap.h>14#include <linux/regulator/consumer.h>15#include <linux/spi/spi.h>16 17#include "m_can.h"18 19#define TCAN4X5X_SANITIZE_SPI 120 21struct __packed tcan4x5x_buf_cmd {22 u8 cmd;23 __be16 addr;24 u8 len;25};26 27struct tcan4x5x_map_buf {28 struct tcan4x5x_buf_cmd cmd;29 u8 data[256 * sizeof(u32)];30} ____cacheline_aligned;31 32struct tcan4x5x_priv {33 struct m_can_classdev cdev;34 35 struct regmap *regmap;36 struct spi_device *spi;37 38 struct gpio_desc *reset_gpio;39 struct gpio_desc *device_wake_gpio;40 struct gpio_desc *device_state_gpio;41 struct regulator *power;42 43 struct tcan4x5x_map_buf map_buf_rx;44 struct tcan4x5x_map_buf map_buf_tx;45};46 47static inline void48tcan4x5x_spi_cmd_set_len(struct tcan4x5x_buf_cmd *cmd, u8 len)49{50 /* number of u32 */51 cmd->len = len >> 2;52}53 54int tcan4x5x_regmap_init(struct tcan4x5x_priv *priv);55 56#endif57