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// 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");
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