4  * SPDX-License-Identifier: Apache-2.0
7  * https://github.com/STMicroelectronics/stm32-nt35510/blob/main/nt35510.c
83 	/* AVEE: -5.2V */
87 	/* VCL: -2.5V */
97 	/* VGL_REG: -10V */
103 	/* VGMN/VGSN:-4.5V/0V */
105 	/* VCOM: -1.325V */
156 static int nt35510_write_reg(const struct device *dev, uint8_t reg, const uint8_t *buf, size_t len)  in nt35510_write_reg()  argument
159 	const struct nt35510_config *cfg = dev->config;  in nt35510_write_reg()
161 	ret = mipi_dsi_dcs_write(cfg->mipi_dsi, cfg->channel, reg, buf, len);  in nt35510_write_reg()
169 /* Write an 8-bit value to a register */
183 		ret = nt35510_write_reg(dev, cmd->reg, cmd->cmd, cmd->cmd_len);  in nt35510_write_sequence()
192 	struct nt35510_data *data = dev->data;  in nt35510_config()
203 	if (data->orientation == DISPLAY_ORIENTATION_NORMAL) {  in nt35510_config()
222 				    data->pixel_format == PIXEL_FORMAT_RGB_565  in nt35510_config()
236 	const struct nt35510_config *cfg = dev->config;  in nt35510_blanking_on()
239 	if (cfg->backlight.port != NULL) {  in nt35510_blanking_on()
240 		ret = gpio_pin_set_dt(&cfg->backlight, 0);  in nt35510_blanking_on()
251 	const struct nt35510_config *cfg = dev->config;  in nt35510_blanking_off()
254 	if (cfg->backlight.port != NULL) {  in nt35510_blanking_off()
255 		ret = gpio_pin_set_dt(&cfg->backlight, 1);  in nt35510_blanking_off()
272 	const struct nt35510_config *cfg = dev->config;  in nt35510_get_capabilities()
273 	struct nt35510_data *data = dev->data;  in nt35510_get_capabilities()
276 	capabilities->x_resolution = cfg->width;  in nt35510_get_capabilities()
277 	capabilities->y_resolution = cfg->height;  in nt35510_get_capabilities()
278 	capabilities->supported_pixel_formats = PIXEL_FORMAT_RGB_565 | PIXEL_FORMAT_RGB_888;  in nt35510_get_capabilities()
279 	capabilities->current_pixel_format = data->pixel_format;  in nt35510_get_capabilities()
280 	capabilities->current_orientation = data->orientation;  in nt35510_get_capabilities()
286 	struct nt35510_data *data = dev->data;  in nt35510_set_pixel_format()
289 		data->pixel_format = pixel_format;  in nt35510_set_pixel_format()
293 	return -ENOTSUP;  in nt35510_set_pixel_format()
298 	const struct nt35510_config *cfg = dev->config;  in nt35510_check_id()
302 	ret = mipi_dsi_dcs_read(cfg->mipi_dsi, cfg->channel, NT35510_CMD_RDID2, &id, 1);  in nt35510_check_id()
305 		return -EIO;  in nt35510_check_id()
310 		return -EINVAL;  in nt35510_check_id()
317 	const struct nt35510_config *cfg = dev->config;  in nt35510_init()
318 	struct nt35510_data *data = dev->data;  in nt35510_init()
322 	if (cfg->reset.port) {  in nt35510_init()
323 		if (!gpio_is_ready_dt(&cfg->reset)) {  in nt35510_init()
325 			return -ENODEV;  in nt35510_init()
327 		ret = gpio_pin_configure_dt(&cfg->reset, GPIO_OUTPUT_INACTIVE);  in nt35510_init()
333 		ret = gpio_pin_set_dt(&cfg->reset, 1);  in nt35510_init()
342 	if (cfg->rotation == 0) {  in nt35510_init()
343 		data->xres = cfg->width;  in nt35510_init()
344 		data->yres = cfg->height;  in nt35510_init()
345 		data->orientation = DISPLAY_ORIENTATION_NORMAL;  in nt35510_init()
346 	} else if (cfg->rotation == 90) {  in nt35510_init()
347 		data->xres = cfg->height;  in nt35510_init()
348 		data->yres = cfg->width;  in nt35510_init()
349 		data->orientation = DISPLAY_ORIENTATION_ROTATED_90;  in nt35510_init()
350 	} else if (cfg->rotation == 180) {  in nt35510_init()
351 		data->xres = cfg->width;  in nt35510_init()
352 		data->yres = cfg->height;  in nt35510_init()
353 		data->orientation = DISPLAY_ORIENTATION_ROTATED_180;  in nt35510_init()
354 	} else if (cfg->rotation == 270) {  in nt35510_init()
355 		data->xres = cfg->height;  in nt35510_init()
356 		data->yres = cfg->width;  in nt35510_init()
357 		data->orientation = DISPLAY_ORIENTATION_ROTATED_270;  in nt35510_init()
360 	/* Attach to MIPI-DSI host */  in nt35510_init()
361 	mdev.data_lanes = cfg->data_lanes;  in nt35510_init()
364 	if (data->pixel_format == PIXEL_FORMAT_RGB_565) {  in nt35510_init()
370 	mdev.timings.hactive = data->xres;  in nt35510_init()
374 	mdev.timings.vactive = data->yres;  in nt35510_init()
377 	mdev.timings.vsync = NT35510_480X800_VSYNC;  in nt35510_init()
379 	ret = mipi_dsi_attach(cfg->mipi_dsi, cfg->channel, &mdev);  in nt35510_init()
381 		LOG_ERR("MIPI-DSI attach failed! (%d)", ret);  in nt35510_init()
391 	ret = gpio_pin_configure_dt(&cfg->backlight, GPIO_OUTPUT_ACTIVE);  in nt35510_init()