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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/gpu/drm/solomon/ssd130x-i2c.c | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/solomon/ssd130x-i2c.c')
-rw-r--r-- | drivers/gpu/drm/solomon/ssd130x-i2c.c | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/drivers/gpu/drm/solomon/ssd130x-i2c.c b/drivers/gpu/drm/solomon/ssd130x-i2c.c new file mode 100644 index 0000000000..b4eb2d64bf --- /dev/null +++ b/drivers/gpu/drm/solomon/ssd130x-i2c.c @@ -0,0 +1,112 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * DRM driver for Solomon SSD130x OLED displays (I2C bus) + * + * Copyright 2022 Red Hat Inc. + * Author: Javier Martinez Canillas <javierm@redhat.com> + * + * Based on drivers/video/fbdev/ssd1307fb.c + * Copyright 2012 Free Electrons + */ +#include <linux/i2c.h> +#include <linux/module.h> + +#include "ssd130x.h" + +#define DRIVER_NAME "ssd130x-i2c" +#define DRIVER_DESC "DRM driver for Solomon SSD130x OLED displays (I2C)" + +static const struct regmap_config ssd130x_i2c_regmap_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +static int ssd130x_i2c_probe(struct i2c_client *client) +{ + struct ssd130x_device *ssd130x; + struct regmap *regmap; + + regmap = devm_regmap_init_i2c(client, &ssd130x_i2c_regmap_config); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + ssd130x = ssd130x_probe(&client->dev, regmap); + if (IS_ERR(ssd130x)) + return PTR_ERR(ssd130x); + + i2c_set_clientdata(client, ssd130x); + + return 0; +} + +static void ssd130x_i2c_remove(struct i2c_client *client) +{ + struct ssd130x_device *ssd130x = i2c_get_clientdata(client); + + ssd130x_remove(ssd130x); +} + +static void ssd130x_i2c_shutdown(struct i2c_client *client) +{ + struct ssd130x_device *ssd130x = i2c_get_clientdata(client); + + ssd130x_shutdown(ssd130x); +} + +static const struct of_device_id ssd130x_of_match[] = { + { + .compatible = "sinowealth,sh1106", + .data = &ssd130x_variants[SH1106_ID], + }, + { + .compatible = "solomon,ssd1305", + .data = &ssd130x_variants[SSD1305_ID], + }, + { + .compatible = "solomon,ssd1306", + .data = &ssd130x_variants[SSD1306_ID], + }, + { + .compatible = "solomon,ssd1307", + .data = &ssd130x_variants[SSD1307_ID], + }, + { + .compatible = "solomon,ssd1309", + .data = &ssd130x_variants[SSD1309_ID], + }, + /* Deprecated but kept for backward compatibility */ + { + .compatible = "solomon,ssd1305fb-i2c", + .data = &ssd130x_variants[SSD1305_ID], + }, + { + .compatible = "solomon,ssd1306fb-i2c", + .data = &ssd130x_variants[SSD1306_ID], + }, + { + .compatible = "solomon,ssd1307fb-i2c", + .data = &ssd130x_variants[SSD1307_ID], + }, + { + .compatible = "solomon,ssd1309fb-i2c", + .data = &ssd130x_variants[SSD1309_ID], + }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, ssd130x_of_match); + +static struct i2c_driver ssd130x_i2c_driver = { + .driver = { + .name = DRIVER_NAME, + .of_match_table = ssd130x_of_match, + }, + .probe = ssd130x_i2c_probe, + .remove = ssd130x_i2c_remove, + .shutdown = ssd130x_i2c_shutdown, +}; +module_i2c_driver(ssd130x_i2c_driver); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_AUTHOR("Javier Martinez Canillas <javierm@redhat.com>"); +MODULE_LICENSE("GPL v2"); +MODULE_IMPORT_NS(DRM_SSD130X); |