1 // SPDX-License-Identifier: GPL-2.0
3  * Toppoly TD028TTEC1 Panel Driver
7  * Based on the omapdrm-specific panel-tpo-td028ttec1 driver
13  * Copyright (C) 2006-2007 OpenMoko, Inc.
16  * Ported and adapted from Neo 1973 U-Boot by:
82 	struct drm_panel panel;  member
87 #define to_td028ttec1_device(p) container_of(p, struct td028ttec1_panel, panel)
91  * on the stack in case of gcc-plugin-structleak
96 	struct spi_device *spi = lcd->spi;  in jbt_ret_write_0()
105 		dev_err(&spi->dev, "%s: SPI write failed: %d\n", __func__, ret);  in jbt_ret_write_0()
117 	struct spi_device *spi = lcd->spi;  in jbt_reg_write_1()
129 		dev_err(&spi->dev, "%s: SPI write failed: %d\n", __func__, ret);  in jbt_reg_write_1()
141 	struct spi_device *spi = lcd->spi;  in jbt_reg_write_2()
154 		dev_err(&spi->dev, "%s: SPI write failed: %d\n", __func__, ret);  in jbt_reg_write_2()
162 static int td028ttec1_prepare(struct drm_panel *panel)  in td028ttec1_prepare()  argument
164 	struct td028ttec1_panel *lcd = to_td028ttec1_device(panel);  in td028ttec1_prepare()
242 static int td028ttec1_enable(struct drm_panel *panel)  in td028ttec1_enable()  argument
244 	struct td028ttec1_panel *lcd = to_td028ttec1_device(panel);  in td028ttec1_enable()
249 static int td028ttec1_disable(struct drm_panel *panel)  in td028ttec1_disable()  argument
251 	struct td028ttec1_panel *lcd = to_td028ttec1_device(panel);  in td028ttec1_disable()
258 static int td028ttec1_unprepare(struct drm_panel *panel)  in td028ttec1_unprepare()  argument
260 	struct td028ttec1_panel *lcd = to_td028ttec1_device(panel);  in td028ttec1_unprepare()
285 static int td028ttec1_get_modes(struct drm_panel *panel,  in td028ttec1_get_modes()  argument
290 	mode = drm_mode_duplicate(connector->dev, &td028ttec1_mode);  in td028ttec1_get_modes()
292 		return -ENOMEM;  in td028ttec1_get_modes()
297 	connector->display_info.width_mm = td028ttec1_mode.width_mm;  in td028ttec1_get_modes()
298 	connector->display_info.height_mm = td028ttec1_mode.height_mm;  in td028ttec1_get_modes()
305 	connector->display_info.bus_flags = DRM_BUS_FLAG_DE_HIGH  in td028ttec1_get_modes()
325 	lcd = devm_kzalloc(&spi->dev, sizeof(*lcd), GFP_KERNEL);  in td028ttec1_probe()
327 		return -ENOMEM;  in td028ttec1_probe()
330 	lcd->spi = spi;  in td028ttec1_probe()
332 	spi->mode = SPI_MODE_3;  in td028ttec1_probe()
333 	spi->bits_per_word = 9;  in td028ttec1_probe()
337 		dev_err(&spi->dev, "failed to setup SPI: %d\n", ret);  in td028ttec1_probe()
341 	drm_panel_init(&lcd->panel, &lcd->spi->dev, &td028ttec1_funcs,  in td028ttec1_probe()
344 	ret = drm_panel_of_backlight(&lcd->panel);  in td028ttec1_probe()
348 	drm_panel_add(&lcd->panel);  in td028ttec1_probe()
357 	drm_panel_remove(&lcd->panel);  in td028ttec1_remove()
358 	drm_panel_disable(&lcd->panel);  in td028ttec1_remove()
359 	drm_panel_unprepare(&lcd->panel);  in td028ttec1_remove()
383 		.name   = "panel-tpo-td028ttec1",
391 MODULE_DESCRIPTION("Toppoly TD028TTEC1 panel driver");