// SPDX-License-Identifier: GPL-2.0-or-later /* * Driver for Sitronix ST7571 connected via SPI bus. * * Copyright (C) 2025 Marcus Folkesson <marcus.folkesson@gmail.com> */ #include <linux/spi/spi.h> #include <linux/module.h> #include <linux/regmap.h> #include "st7571.h" static const struct regmap_config st7571_spi_regmap_config = { .reg_bits = 8, .val_bits = 8, .can_multi_write = true, }; static int st7571_spi_probe(struct spi_device *spi) { struct st7571_device *st7571; struct regmap *regmap; regmap = devm_regmap_init_spi(spi, &st7571_spi_regmap_config); if (IS_ERR(regmap)) { return dev_err_probe(&spi->dev, PTR_ERR(regmap), "Failed to initialize regmap\n"); } st7571 = st7571_probe(&spi->dev, regmap); if (IS_ERR(st7571)) return dev_err_probe(&spi->dev, PTR_ERR(st7571), "Failed to initialize regmap\n"); spi_set_drvdata(spi, st7571); return 0; } static void st7571_spi_remove(struct spi_device *spi) { struct st7571_device *st7571 = spi_get_drvdata(spi); st7571_remove(st7571); } static const struct of_device_id st7571_of_match[] = { { .compatible = "sitronix,st7567", .data = &st7567_config }, { .compatible = "sitronix,st7571", .data = &st7571_config }, {}, }; MODULE_DEVICE_TABLE(of, st7571_of_match); static const struct spi_device_id st7571_spi_id[] = { { "st7567", 0 }, { "st7571", 0 }, { } }; MODULE_DEVICE_TABLE(spi, st7571_spi_id); static struct spi_driver st7571_spi_driver = { .driver = { .name = "st7571-spi", .of_match_table = st7571_of_match, }, .probe = st7571_spi_probe, .remove = st7571_spi_remove, .id_table = st7571_spi_id, }; module_spi_driver(st7571_spi_driver); MODULE_AUTHOR("Marcus Folkesson <marcus.folkesson@gmail.com>"); MODULE_DESCRIPTION("DRM Driver for Sitronix ST7571 LCD controller (SPI)"); MODULE_LICENSE("GPL"); MODULE_IMPORT_NS("DRM_ST7571");