1 // SPDX-License-Identifier: GPL-2.0
30 #define MCS_STBCTR		0x12 /* TE1 Output Setting Zig-Zag Connection */
31 #define MCS_SGOPCTR		0x16 /* Source Bias Current */
43 #define MCS_SW_CTRL		0x5F /* Interface Control for PFM and MIPI */
45 /* CMD2 P2 commands (GOA Timing Control) - no description in datasheet */
107 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in rm68200_dcs_write_buf()
112 		dev_err_ratelimited(ctx->dev, "MIPI DSI DCS write buffer failed: %d\n", err);  in rm68200_dcs_write_buf()
117 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in rm68200_dcs_write_cmd()
122 		dev_err_ratelimited(ctx->dev, "MIPI DSI DCS write failed: %d\n", err);  in rm68200_dcs_write_cmd()
133  * This panel is not able to auto-increment all cmd addresses so for some of
238 	if (!ctx->enabled)  in rm68200_disable()
241 	ctx->enabled = false;  in rm68200_disable()
249 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in rm68200_unprepare()
252 	if (!ctx->prepared)  in rm68200_unprepare()
257 		dev_warn(panel->dev, "failed to set display off: %d\n", ret);  in rm68200_unprepare()
261 		dev_warn(panel->dev, "failed to enter sleep mode: %d\n", ret);  in rm68200_unprepare()
265 	if (ctx->reset_gpio) {  in rm68200_unprepare()
266 		gpiod_set_value_cansleep(ctx->reset_gpio, 1);  in rm68200_unprepare()
270 	regulator_disable(ctx->supply);  in rm68200_unprepare()
272 	ctx->prepared = false;  in rm68200_unprepare()
280 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in rm68200_prepare()
283 	if (ctx->prepared)  in rm68200_prepare()
286 	ret = regulator_enable(ctx->supply);  in rm68200_prepare()
288 		dev_err(ctx->dev, "failed to enable supply: %d\n", ret);  in rm68200_prepare()
292 	if (ctx->reset_gpio) {  in rm68200_prepare()
293 		gpiod_set_value_cansleep(ctx->reset_gpio, 1);  in rm68200_prepare()
295 		gpiod_set_value_cansleep(ctx->reset_gpio, 0);  in rm68200_prepare()
313 	ctx->prepared = true;  in rm68200_prepare()
322 	if (ctx->enabled)  in rm68200_enable()
325 	ctx->enabled = true;  in rm68200_enable()
335 	mode = drm_mode_duplicate(connector->dev, &default_mode);  in rm68200_get_modes()
337 		dev_err(panel->dev, "failed to add mode %ux%u@%u\n",  in rm68200_get_modes()
340 		return -ENOMEM;  in rm68200_get_modes()
345 	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;  in rm68200_get_modes()
348 	connector->display_info.width_mm = mode->width_mm;  in rm68200_get_modes()
349 	connector->display_info.height_mm = mode->height_mm;  in rm68200_get_modes()
364 	struct device *dev = &dsi->dev;  in rm68200_probe()
370 		return -ENOMEM;  in rm68200_probe()
372 	ctx->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);  in rm68200_probe()
373 	if (IS_ERR(ctx->reset_gpio)) {  in rm68200_probe()
374 		ret = PTR_ERR(ctx->reset_gpio);  in rm68200_probe()
379 	ctx->supply = devm_regulator_get(dev, "power");  in rm68200_probe()
380 	if (IS_ERR(ctx->supply)) {  in rm68200_probe()
381 		ret = PTR_ERR(ctx->supply);  in rm68200_probe()
382 		if (ret != -EPROBE_DEFER)  in rm68200_probe()
389 	ctx->dev = dev;  in rm68200_probe()
391 	dsi->lanes = 2;  in rm68200_probe()
392 	dsi->format = MIPI_DSI_FMT_RGB888;  in rm68200_probe()
393 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |  in rm68200_probe()
396 	drm_panel_init(&ctx->panel, dev, &rm68200_drm_funcs,  in rm68200_probe()
399 	ret = drm_panel_of_backlight(&ctx->panel);  in rm68200_probe()
403 	drm_panel_add(&ctx->panel);  in rm68200_probe()
408 		drm_panel_remove(&ctx->panel);  in rm68200_probe()
420 	drm_panel_remove(&ctx->panel);  in rm68200_remove()
433 		.name = "panel-raydium-rm68200",
441 MODULE_DESCRIPTION("DRM Driver for Raydium RM68200 MIPI DSI panel");