1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __LINUX_SPI_GPIO_H
3#define __LINUX_SPI_GPIO_H
4
5/*
6 * For each bitbanged SPI bus, set up a platform_device node with:
7 *   - name "spi_gpio"
8 *   - id the same as the SPI bus number it implements
9 *   - dev.platform data pointing to a struct spi_gpio_platform_data
10 *
11 * Use spi_board_info with these busses in the usual way.
12 *
13 * If the bitbanged bus is later switched to a "native" controller,
14 * that platform_device and controller_data should be removed.
15 */
16
17/**
18 * struct spi_gpio_platform_data - parameter for bitbanged SPI host controller
19 * @num_chipselect: how many target devices to allow
20 */
21struct spi_gpio_platform_data {
22	u16		num_chipselect;
23};
24
25#endif /* __LINUX_SPI_GPIO_H */
26