1 // SPDX-License-Identifier: GPL-2.0
29 #define MCS_P_DRV_M	0xC0B4	/* Panel Driving Mode */
30 #define MCS_OSC_ADJ	0xC181	/* Oscillator Adjustment for Idle/Normal mode */
31 #define MCS_RGB_VID_SET	0xC1A1	/* RGB Video Mode Setting */
35 #define MCS_PWR_CTRL2	0xC590	/* Power Control Setting 2 for Normal Mode */
57 #define MCS_VCOMDC	0xD900	/* VCOM Voltage Setting */
59 #define MCS_GMCT2_2N	0xE200	/* Gamma Correction 2.2- Setting */
115 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in otm8009a_dcs_write_buf()
118 		dev_warn(ctx->dev, "mipi dsi dcs write buffer failed\n");  in otm8009a_dcs_write_buf()
135 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in otm8009a_init_sequence()
230 	ret = mipi_dsi_dcs_set_column_address(dsi, 0, OTM8009A_HDISPLAY - 1);  in otm8009a_init_sequence()
234 	ret = mipi_dsi_dcs_set_page_address(dsi, 0, OTM8009A_VDISPLAY - 1);  in otm8009a_init_sequence()
267 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in otm8009a_disable()
270 	backlight_disable(ctx->bl_dev);  in otm8009a_disable()
289 	if (ctx->reset_gpio) {  in otm8009a_unprepare()
290 		gpiod_set_value_cansleep(ctx->reset_gpio, 1);  in otm8009a_unprepare()
294 	regulator_disable(ctx->supply);  in otm8009a_unprepare()
296 	ctx->prepared = false;  in otm8009a_unprepare()
306 	ret = regulator_enable(ctx->supply);  in otm8009a_prepare()
308 		dev_err(panel->dev, "failed to enable supply: %d\n", ret);  in otm8009a_prepare()
312 	if (ctx->reset_gpio) {  in otm8009a_prepare()
313 		gpiod_set_value_cansleep(ctx->reset_gpio, 0);  in otm8009a_prepare()
314 		gpiod_set_value_cansleep(ctx->reset_gpio, 1);  in otm8009a_prepare()
316 		gpiod_set_value_cansleep(ctx->reset_gpio, 0);  in otm8009a_prepare()
324 	ctx->prepared = true;  in otm8009a_prepare()
333 	backlight_enable(ctx->bl_dev);  in otm8009a_enable()
341 	struct drm_display_mode *mode;  in otm8009a_get_modes()  local
346 		mode = drm_mode_duplicate(connector->dev, &modes[i]);  in otm8009a_get_modes()
347 		if (!mode) {  in otm8009a_get_modes()
348 			dev_err(panel->dev, "failed to add mode %ux%u@%u\n",  in otm8009a_get_modes()
352 			return -ENOMEM;  in otm8009a_get_modes()
355 		mode->type = DRM_MODE_TYPE_DRIVER;  in otm8009a_get_modes()
357 		/* Setting first mode as preferred */  in otm8009a_get_modes()
359 			mode->type |=  DRM_MODE_TYPE_PREFERRED;  in otm8009a_get_modes()
361 		drm_mode_set_name(mode);  in otm8009a_get_modes()
362 		drm_mode_probed_add(connector, mode);  in otm8009a_get_modes()
365 	connector->display_info.width_mm = mode->width_mm;  in otm8009a_get_modes()
366 	connector->display_info.height_mm = mode->height_mm;  in otm8009a_get_modes()
380  * DSI-BASED BACKLIGHT
388 	if (!ctx->prepared) {  in otm8009a_backlight_update_status()
389 		dev_dbg(&bd->dev, "lcd not ready yet for setting its backlight!\n");  in otm8009a_backlight_update_status()
390 		return -ENXIO;  in otm8009a_backlight_update_status()
393 	if (bd->props.power <= BACKLIGHT_POWER_REDUCED) {  in otm8009a_backlight_update_status()
396 		 * as otm8009a driver support only 8-bit brightness (1 param).  in otm8009a_backlight_update_status()
399 		data[1] = bd->props.brightness;  in otm8009a_backlight_update_status()
423 	struct device *dev = &dsi->dev;  in otm8009a_probe()
429 		return -ENOMEM;  in otm8009a_probe()
431 	ctx->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);  in otm8009a_probe()
432 	if (IS_ERR(ctx->reset_gpio)) {  in otm8009a_probe()
433 		dev_err(dev, "cannot get reset-gpio\n");  in otm8009a_probe()
434 		return PTR_ERR(ctx->reset_gpio);  in otm8009a_probe()
437 	ctx->supply = devm_regulator_get(dev, "power");  in otm8009a_probe()
438 	if (IS_ERR(ctx->supply)) {  in otm8009a_probe()
439 		ret = PTR_ERR(ctx->supply);  in otm8009a_probe()
440 		if (ret != -EPROBE_DEFER)  in otm8009a_probe()
447 	ctx->dev = dev;  in otm8009a_probe()
449 	dsi->lanes = 2;  in otm8009a_probe()
450 	dsi->format = MIPI_DSI_FMT_RGB888;  in otm8009a_probe()
451 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |  in otm8009a_probe()
454 	drm_panel_init(&ctx->panel, dev, &otm8009a_drm_funcs,  in otm8009a_probe()
457 	ctx->bl_dev = devm_backlight_device_register(dev, dev_name(dev),  in otm8009a_probe()
461 	if (IS_ERR(ctx->bl_dev)) {  in otm8009a_probe()
462 		ret = PTR_ERR(ctx->bl_dev);  in otm8009a_probe()
467 	ctx->bl_dev->props.max_brightness = OTM8009A_BACKLIGHT_MAX;  in otm8009a_probe()
468 	ctx->bl_dev->props.brightness = OTM8009A_BACKLIGHT_DEFAULT;  in otm8009a_probe()
469 	ctx->bl_dev->props.power = BACKLIGHT_POWER_OFF;  in otm8009a_probe()
470 	ctx->bl_dev->props.type = BACKLIGHT_RAW;  in otm8009a_probe()
472 	drm_panel_add(&ctx->panel);  in otm8009a_probe()
477 		drm_panel_remove(&ctx->panel);  in otm8009a_probe()
489 	drm_panel_remove(&ctx->panel);  in otm8009a_remove()
502 		.name = "panel-orisetech-otm8009a",