68 	struct i2c_client *client;  member
114 static int ssd1307fb_write_array(struct i2c_client *client,  in ssd1307fb_write_array()  argument
121 	ret = i2c_master_send(client, (u8 *)array, len);  in ssd1307fb_write_array()
123 		dev_err(&client->dev, "Couldn't send I2C command.\n");  in ssd1307fb_write_array()
130 static inline int ssd1307fb_write_cmd(struct i2c_client *client, u8 cmd)  in ssd1307fb_write_cmd()  argument
141 	ret = ssd1307fb_write_array(client, array, 1);  in ssd1307fb_write_cmd()
202 	ssd1307fb_write_array(par->client, array, par->width * par->height / 8);  in ssd1307fb_update_display()
243 		return ssd1307fb_write_cmd(par->client, SSD1307FB_DISPLAY_OFF);  in ssd1307fb_blank()
245 		return ssd1307fb_write_cmd(par->client, SSD1307FB_DISPLAY_ON);  in ssd1307fb_blank()
291 		par->pwm = pwm_get(&par->client->dev, NULL);  in ssd1307fb_init()
293 			dev_err(&par->client->dev, "Could not get PWM from device tree!\n");  in ssd1307fb_init()
302 		dev_dbg(&par->client->dev, "Using PWM%d with a %dns period.\n",  in ssd1307fb_init()
307 	ret = ssd1307fb_write_cmd(par->client, SSD1307FB_CONTRAST);  in ssd1307fb_init()
311 	ret = ssd1307fb_write_cmd(par->client, par->contrast);  in ssd1307fb_init()
317 		ret = ssd1307fb_write_cmd(par->client, SSD1307FB_SEG_REMAP_ON);  in ssd1307fb_init()
324 	ret = ssd1307fb_write_cmd(par->client,  com_invdir);  in ssd1307fb_init()
329 	ret = ssd1307fb_write_cmd(par->client, SSD1307FB_SET_MULTIPLEX_RATIO);  in ssd1307fb_init()
333 	ret = ssd1307fb_write_cmd(par->client, par->height - 1);  in ssd1307fb_init()
338 	ret = ssd1307fb_write_cmd(par->client, SSD1307FB_SET_DISPLAY_OFFSET);  in ssd1307fb_init()
342 	ret = ssd1307fb_write_cmd(par->client, par->com_offset);  in ssd1307fb_init()
347 	ret = ssd1307fb_write_cmd(par->client, SSD1307FB_SET_CLOCK_FREQ);  in ssd1307fb_init()
352 	ret = ssd1307fb_write_cmd(par->client, dclk);  in ssd1307fb_init()
357 	ret = ssd1307fb_write_cmd(par->client, SSD1307FB_SET_PRECHARGE_PERIOD);  in ssd1307fb_init()
362 	ret = ssd1307fb_write_cmd(par->client, precharge);  in ssd1307fb_init()
367 	ret = ssd1307fb_write_cmd(par->client, SSD1307FB_SET_COM_PINS_CONFIG);  in ssd1307fb_init()
373 	ret = ssd1307fb_write_cmd(par->client, compins);  in ssd1307fb_init()
378 	ret = ssd1307fb_write_cmd(par->client, SSD1307FB_SET_VCOMH);  in ssd1307fb_init()
382 	ret = ssd1307fb_write_cmd(par->client, par->vcomh);  in ssd1307fb_init()
387 	ret = ssd1307fb_write_cmd(par->client, SSD1307FB_CHARGE_PUMP);  in ssd1307fb_init()
391 	ret = ssd1307fb_write_cmd(par->client,  in ssd1307fb_init()
397 	ret = ssd1307fb_write_cmd(par->client, SSD1307FB_SET_ADDRESS_MODE);  in ssd1307fb_init()
401 	ret = ssd1307fb_write_cmd(par->client,  in ssd1307fb_init()
407 	ret = ssd1307fb_write_cmd(par->client, SSD1307FB_SET_COL_RANGE);  in ssd1307fb_init()
411 	ret = ssd1307fb_write_cmd(par->client, 0x0);  in ssd1307fb_init()
415 	ret = ssd1307fb_write_cmd(par->client, par->width - 1);  in ssd1307fb_init()
420 	ret = ssd1307fb_write_cmd(par->client, SSD1307FB_SET_PAGE_RANGE);  in ssd1307fb_init()
424 	ret = ssd1307fb_write_cmd(par->client, 0x0);  in ssd1307fb_init()
428 	ret = ssd1307fb_write_cmd(par->client,  in ssd1307fb_init()
434 	ret = ssd1307fb_write_cmd(par->client, SSD1307FB_DISPLAY_ON);  in ssd1307fb_init()
449 	ret = ssd1307fb_write_cmd(par->client, SSD1307FB_CONTRAST);  in ssd1307fb_update_bl()
452 	ret = ssd1307fb_write_cmd(par->client, par->contrast);  in ssd1307fb_update_bl()
525 static int ssd1307fb_probe(struct i2c_client *client,  in ssd1307fb_probe()  argument
531 	struct device_node *node = client->dev.of_node;  in ssd1307fb_probe()
539 		dev_err(&client->dev, "No device tree data found!\n");  in ssd1307fb_probe()
543 	info = framebuffer_alloc(sizeof(struct ssd1307fb_par), &client->dev);  in ssd1307fb_probe()
545 		dev_err(&client->dev, "Couldn't allocate framebuffer.\n");  in ssd1307fb_probe()
551 	par->client = client;  in ssd1307fb_probe()
554 			ssd1307fb_of_match, &client->dev)->data;  in ssd1307fb_probe()
556 	par->reset = of_get_named_gpio(client->dev.of_node,  in ssd1307fb_probe()
598 		dev_err(&client->dev, "Couldn't allocate graphical memory.\n");  in ssd1307fb_probe()
603 	ssd1307fb_defio = devm_kzalloc(&client->dev, sizeof(struct fb_deferred_io), GFP_KERNEL);  in ssd1307fb_probe()
605 		dev_err(&client->dev, "Couldn't allocate deferred io.\n");  in ssd1307fb_probe()
637 	ret = devm_gpio_request_one(&client->dev, par->reset,  in ssd1307fb_probe()
641 		dev_err(&client->dev,  in ssd1307fb_probe()
647 	i2c_set_clientdata(client, info);  in ssd1307fb_probe()
661 		dev_err(&client->dev, "Couldn't register the framebuffer\n");  in ssd1307fb_probe()
666 	bl = backlight_device_register(bl_name, &client->dev, par,  in ssd1307fb_probe()
670 		dev_err(&client->dev, "unable to register backlight device: %d\n",  in ssd1307fb_probe()
679 …dev_info(&client->dev, "fb%d: %s framebuffer device registered, using %d bytes of video memory\n",…  in ssd1307fb_probe()
697 static int ssd1307fb_remove(struct i2c_client *client)  in ssd1307fb_remove()  argument
699 	struct fb_info *info = i2c_get_clientdata(client);  in ssd1307fb_remove()
702 	ssd1307fb_write_cmd(par->client, SSD1307FB_DISPLAY_OFF);  in ssd1307fb_remove()