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/linux/drivers/gpu/drm/solomon/
H A Dssd130x-i2c.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * DRM driver for Solomon SSD13xx OLED displays (I2C bus)
8 * Based on drivers/video/fbdev/ssd1307fb.c
11 #include <linux/i2c.h>
16 #define DRIVER_NAME "ssd130x-i2c"
17 #define DRIVER_DESC "DRM driver for Solomon SSD13xx OLED displays (I2C)"
33 ssd130x = ssd130x_probe(&client->dev, regmap); in ssd130x_i2c_probe()
80 .compatible = "solomon,ssd1305fb-i2c",
84 .compatible = "solomon,ssd1306fb-i2c",
88 .compatible = "solomon,ssd1307fb-i2c",
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/linux/Documentation/devicetree/bindings/display/
H A Dsolomon,ssd1307fb.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/display/solomon,ssd1307fb.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Maxime Ripard <mripard@kernel.org>
11 - Javier Martinez Canillas <javierm@redhat.com>
17 - enum:
18 - solomon,ssd1305fb-i2c
19 - solomon,ssd1306fb-i2c
20 - solomon,ssd1307fb-i2c
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/linux/drivers/video/fbdev/
H A Dssd1307fb.c1 // SPDX-License-Identifier: GPL-2.0-or-later
12 #include <linux/i2c.h>
122 array->type = type; in ssd1307fb_alloc_array()
136 dev_err(&client->dev, "Couldn't send I2C command.\n"); in ssd1307fb_write_array()
150 return -ENOMEM; in ssd1307fb_write_cmd()
152 array->data[0] = cmd; in ssd1307fb_write_cmd()
163 u8 col_end = col_start + cols - 1; in ssd1307fb_set_col_range()
166 if (col_start == par->col_start && col_end == par->col_end) in ssd1307fb_set_col_range()
169 ret = ssd1307fb_write_cmd(par->client, SSD1307FB_SET_COL_RANGE); in ssd1307fb_set_col_range()
173 ret = ssd1307fb_write_cmd(par->client, col_start); in ssd1307fb_set_col_range()
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/linux/Documentation/devicetree/bindings/i2c/
H A Di2c-mux-gpio.yaml1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/i2c/i2c-mux-gpio.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: GPIO-based I2C Bus Mux
10 - Wolfram Sang <wsa@kernel.org>
13 This binding describes an I2C bus multiplexer that uses GPIOs to route the I2C signals.
15 +-----+ +-----+
17 +------------+ +-----+ +-----+
19 | | /--------+--------+
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