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36131b72fb
The nWKRQ pin supports an output voltage of either the internal reference voltage (3.6V) or the reference voltage of the digital interface 0-6V (VIO). Add the devicetree option ti,nwkrq-voltage-vio to set it to VIO. If this property is omitted the reset default, the internal reference voltage, is used. Signed-off-by: Sean Nyekjaer <sean@geanix.com> Reviewed-by: Marc Kleine-Budde <mkl@pengutronix.de> Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Link: https://patch.msgid.link/20241114-tcan-wkrqv-v5-2-a2d50833ed71@geanix.com [mkl: remove unused variable in tcan4x5x_get_dt_data()] Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
58 lines
1.1 KiB
C
58 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0
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*
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* tcan4x5x - Texas Instruments TCAN4x5x Family CAN controller driver
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*
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* Copyright (c) 2020 Pengutronix,
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* Marc Kleine-Budde <kernel@pengutronix.de>
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*/
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#ifndef _TCAN4X5X_H
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#define _TCAN4X5X_H
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#include <linux/gpio/consumer.h>
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#include <linux/regmap.h>
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#include <linux/regulator/consumer.h>
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#include <linux/spi/spi.h>
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#include "m_can.h"
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#define TCAN4X5X_SANITIZE_SPI 1
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struct __packed tcan4x5x_buf_cmd {
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u8 cmd;
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__be16 addr;
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u8 len;
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};
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struct tcan4x5x_map_buf {
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struct tcan4x5x_buf_cmd cmd;
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u8 data[256 * sizeof(u32)];
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} ____cacheline_aligned;
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struct tcan4x5x_priv {
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struct m_can_classdev cdev;
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struct regmap *regmap;
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struct spi_device *spi;
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struct gpio_desc *reset_gpio;
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struct gpio_desc *device_wake_gpio;
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struct gpio_desc *device_state_gpio;
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struct regulator *power;
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struct tcan4x5x_map_buf map_buf_rx;
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struct tcan4x5x_map_buf map_buf_tx;
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bool nwkrq_voltage_vio;
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};
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static inline void
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tcan4x5x_spi_cmd_set_len(struct tcan4x5x_buf_cmd *cmd, u8 len)
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{
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/* number of u32 */
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cmd->len = len >> 2;
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}
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int tcan4x5x_regmap_init(struct tcan4x5x_priv *priv);
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#endif
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