1 // SPDX-License-Identifier: GPL-2.0
3  * Xinpeng xpp055c272 5.5" MIPI-DSI panel driver
6  * based on
8  * Rockteck jh057n00900 5.5" MIPI-DSI panel driver
21 #include <linux/media-bus-format.h>
26 /* Manufacturer specific Commands send via DSI */
64 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in xpp055c272_init_sequence()  local
65 	struct device *dev = ctx->dev;  in xpp055c272_init_sequence()
71 	mipi_dsi_dcs_write_seq(dsi, XPP055C272_CMD_SETEXTC, 0xf1, 0x12, 0x83);  in xpp055c272_init_sequence()
72 	mipi_dsi_dcs_write_seq(dsi, XPP055C272_CMD_SETMIPI,  in xpp055c272_init_sequence()
77 	mipi_dsi_dcs_write_seq(dsi, XPP055C272_CMD_SETPOWER_EXT, 0x25);  in xpp055c272_init_sequence()
78 	mipi_dsi_dcs_write_seq(dsi, XPP055C272_CMD_SETPCR, 0x02, 0x11, 0x00);  in xpp055c272_init_sequence()
79 	mipi_dsi_dcs_write_seq(dsi, XPP055C272_CMD_SETRGBIF,  in xpp055c272_init_sequence()
82 	mipi_dsi_dcs_write_seq(dsi, XPP055C272_CMD_SETSCR,  in xpp055c272_init_sequence()
85 	mipi_dsi_dcs_write_seq(dsi, XPP055C272_CMD_SETVDC, 0x46);  in xpp055c272_init_sequence()
86 	mipi_dsi_dcs_write_seq(dsi, XPP055C272_CMD_SETPANEL, 0x0b);  in xpp055c272_init_sequence()
87 	mipi_dsi_dcs_write_seq(dsi, XPP055C272_CMD_SETCYC, 0x80);  in xpp055c272_init_sequence()
88 	mipi_dsi_dcs_write_seq(dsi, XPP055C272_CMD_SETDISP, 0xc8, 0x12, 0x30);  in xpp055c272_init_sequence()
89 	mipi_dsi_dcs_write_seq(dsi, XPP055C272_CMD_SETEQ,  in xpp055c272_init_sequence()
92 	mipi_dsi_dcs_write_seq(dsi, XPP055C272_CMD_SETPOWER,  in xpp055c272_init_sequence()
95 	mipi_dsi_dcs_write_seq(dsi, XPP055C272_CMD_SETECO, 0x00, 0x00, 0xff,  in xpp055c272_init_sequence()
97 	mipi_dsi_dcs_write_seq(dsi, XPP055C272_CMD_SETBGP, 0x09, 0x09);  in xpp055c272_init_sequence()
100 	mipi_dsi_dcs_write_seq(dsi, XPP055C272_CMD_SETVCOM, 0x87, 0x95);  in xpp055c272_init_sequence()
101 	mipi_dsi_dcs_write_seq(dsi, XPP055C272_CMD_SETGIP1,  in xpp055c272_init_sequence()
110 	mipi_dsi_dcs_write_seq(dsi, XPP055C272_CMD_SETGIP2,  in xpp055c272_init_sequence()
119 	mipi_dsi_dcs_write_seq(dsi, XPP055C272_CMD_SETGAMMA,  in xpp055c272_init_sequence()
135 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in xpp055c272_unprepare()  local
138 	ret = mipi_dsi_dcs_set_display_off(dsi);  in xpp055c272_unprepare()
140 		dev_err(ctx->dev, "failed to set display off: %d\n", ret);  in xpp055c272_unprepare()
142 	mipi_dsi_dcs_enter_sleep_mode(dsi);  in xpp055c272_unprepare()
144 		dev_err(ctx->dev, "failed to enter sleep mode: %d\n", ret);  in xpp055c272_unprepare()
148 	regulator_disable(ctx->iovcc);  in xpp055c272_unprepare()
149 	regulator_disable(ctx->vci);  in xpp055c272_unprepare()
157 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in xpp055c272_prepare()  local
160 	dev_dbg(ctx->dev, "Resetting the panel\n");  in xpp055c272_prepare()
161 	ret = regulator_enable(ctx->vci);  in xpp055c272_prepare()
163 		dev_err(ctx->dev, "Failed to enable vci supply: %d\n", ret);  in xpp055c272_prepare()
166 	ret = regulator_enable(ctx->iovcc);  in xpp055c272_prepare()
168 		dev_err(ctx->dev, "Failed to enable iovcc supply: %d\n", ret);  in xpp055c272_prepare()
172 	gpiod_set_value_cansleep(ctx->reset_gpio, 1);  in xpp055c272_prepare()
175 	gpiod_set_value_cansleep(ctx->reset_gpio, 0);  in xpp055c272_prepare()
182 		dev_err(ctx->dev, "Panel init sequence failed: %d\n", ret);  in xpp055c272_prepare()
186 	ret = mipi_dsi_dcs_exit_sleep_mode(dsi);  in xpp055c272_prepare()
188 		dev_err(ctx->dev, "Failed to exit sleep mode: %d\n", ret);  in xpp055c272_prepare()
195 	ret = mipi_dsi_dcs_set_display_on(dsi);  in xpp055c272_prepare()
197 		dev_err(ctx->dev, "Failed to set display on: %d\n", ret);  in xpp055c272_prepare()
206 	regulator_disable(ctx->iovcc);  in xpp055c272_prepare()
208 	regulator_disable(ctx->vci);  in xpp055c272_prepare()
232 	mode = drm_mode_duplicate(connector->dev, &default_mode);  in xpp055c272_get_modes()
234 		dev_err(ctx->dev, "Failed to add mode %ux%u@%u\n",  in xpp055c272_get_modes()
237 		return -ENOMEM;  in xpp055c272_get_modes()
242 	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;  in xpp055c272_get_modes()
243 	connector->display_info.width_mm = mode->width_mm;  in xpp055c272_get_modes()
244 	connector->display_info.height_mm = mode->height_mm;  in xpp055c272_get_modes()
256 static int xpp055c272_probe(struct mipi_dsi_device *dsi)  in xpp055c272_probe()  argument
258 	struct device *dev = &dsi->dev;  in xpp055c272_probe()
264 		return -ENOMEM;  in xpp055c272_probe()
266 	ctx->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);  in xpp055c272_probe()
267 	if (IS_ERR(ctx->reset_gpio))  in xpp055c272_probe()
268 		return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio),  in xpp055c272_probe()
271 	ctx->vci = devm_regulator_get(dev, "vci");  in xpp055c272_probe()
272 	if (IS_ERR(ctx->vci))  in xpp055c272_probe()
273 		return dev_err_probe(dev, PTR_ERR(ctx->vci),  in xpp055c272_probe()
276 	ctx->iovcc = devm_regulator_get(dev, "iovcc");  in xpp055c272_probe()
277 	if (IS_ERR(ctx->iovcc))  in xpp055c272_probe()
278 		return dev_err_probe(dev, PTR_ERR(ctx->iovcc),  in xpp055c272_probe()
281 	mipi_dsi_set_drvdata(dsi, ctx);  in xpp055c272_probe()
283 	ctx->dev = dev;  in xpp055c272_probe()
285 	dsi->lanes = 4;  in xpp055c272_probe()
286 	dsi->format = MIPI_DSI_FMT_RGB888;  in xpp055c272_probe()
287 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |  in xpp055c272_probe()
290 	drm_panel_init(&ctx->panel, &dsi->dev, &xpp055c272_funcs,  in xpp055c272_probe()
293 	ret = drm_panel_of_backlight(&ctx->panel);  in xpp055c272_probe()
297 	drm_panel_add(&ctx->panel);  in xpp055c272_probe()
299 	ret = mipi_dsi_attach(dsi);  in xpp055c272_probe()
302 		drm_panel_remove(&ctx->panel);  in xpp055c272_probe()
309 static void xpp055c272_remove(struct mipi_dsi_device *dsi)  in xpp055c272_remove()  argument
311 	struct xpp055c272 *ctx = mipi_dsi_get_drvdata(dsi);  in xpp055c272_remove()
314 	ret = mipi_dsi_detach(dsi);  in xpp055c272_remove()
316 		dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret);  in xpp055c272_remove()
318 	drm_panel_remove(&ctx->panel);  in xpp055c272_remove()
329 		.name = "panel-xinpeng-xpp055c272",
337 MODULE_AUTHOR("Heiko Stuebner <heiko.stuebner@theobroma-systems.com>");
338 MODULE_DESCRIPTION("DRM driver for Xinpeng xpp055c272 MIPI DSI panel");