| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef __LINUX_SPI_GPIO_H |
| #define __LINUX_SPI_GPIO_H |
| |
| /* |
| * For each bitbanged SPI bus, set up a platform_device node with: |
| * - name "spi_gpio" |
| * - id the same as the SPI bus number it implements |
| * - dev.platform data pointing to a struct spi_gpio_platform_data |
| * |
| * Use spi_board_info with these busses in the usual way. |
| * |
| * If the bitbanged bus is later switched to a "native" controller, |
| * that platform_device and controller_data should be removed. |
| */ |
| |
| /** |
| * struct spi_gpio_platform_data - parameter for bitbanged SPI master |
| * @num_chipselect: how many slaves to allow |
| */ |
| struct spi_gpio_platform_data { |
| u16 num_chipselect; |
| }; |
| |
| #endif /* __LINUX_SPI_GPIO_H */ |
