1 // SPDX-License-Identifier: GPL-2.0
7  * Based on the omapdrm-specific panel-tpo-td028ttec1 driver
12  * Neo 1973 code (jbt6k74.c):
13  * Copyright (C) 2006-2007 OpenMoko, Inc.
16  * Ported and adapted from Neo 1973 U-Boot by:
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()
149 	tx_buf[1] = JBT_DATA | (data >> 8);  in jbt_reg_write_2()
154 		dev_err(&spi->dev, "%s: SPI write failed: %d\n", __func__, ret);  in jbt_reg_write_2()
273 	.hsync_end = 480 + 24 + 8,
274 	.htotal = 480 + 24 + 8 + 8,
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()
301 	 * rising edge of the clock, but the code running on the OpenMoko Neo  in td028ttec1_get_modes()
302 	 * FreeRunner and Neo 1973 indicates sampling on the falling edge. This  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",