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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/gpu/drm/solomon/ssd130x-i2c.c
parentInitial commit. (diff)
downloadlinux-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.c112
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);