1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * NEC NL8048HL11 Panel driver
107 	for (i = 0; i < (ARRAY_SIZE(nec_8048_init_seq) - 1); i++)  in init_nec_8048_wvga_lcd()
119 	struct omap_dss_device *in = ddata->in;  in nec_8048_connect()
125 	r = in->ops.dpi->connect(in, dssdev);  in nec_8048_connect()
135 	struct omap_dss_device *in = ddata->in;  in nec_8048_disconnect()
140 	in->ops.dpi->disconnect(in, dssdev);  in nec_8048_disconnect()
146 	struct omap_dss_device *in = ddata->in;  in nec_8048_enable()
150 		return -ENODEV;  in nec_8048_enable()
155 	if (ddata->data_lines)  in nec_8048_enable()
156 		in->ops.dpi->set_data_lines(in, ddata->data_lines);  in nec_8048_enable()
157 	in->ops.dpi->set_timings(in, &ddata->videomode);  in nec_8048_enable()
159 	r = in->ops.dpi->enable(in);  in nec_8048_enable()
163 	if (gpio_is_valid(ddata->res_gpio))  in nec_8048_enable()
164 		gpio_set_value_cansleep(ddata->res_gpio, 1);  in nec_8048_enable()
166 	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;  in nec_8048_enable()
174 	struct omap_dss_device *in = ddata->in;  in nec_8048_disable()
179 	if (gpio_is_valid(ddata->res_gpio))  in nec_8048_disable()
180 		gpio_set_value_cansleep(ddata->res_gpio, 0);  in nec_8048_disable()
182 	in->ops.dpi->disable(in);  in nec_8048_disable()
184 	dssdev->state = OMAP_DSS_DISPLAY_DISABLED;  in nec_8048_disable()
191 	struct omap_dss_device *in = ddata->in;  in nec_8048_set_timings()
193 	ddata->videomode = *timings;  in nec_8048_set_timings()
194 	dssdev->panel.timings = *timings;  in nec_8048_set_timings()
196 	in->ops.dpi->set_timings(in, timings);  in nec_8048_set_timings()
204 	*timings = ddata->videomode;  in nec_8048_get_timings()
211 	struct omap_dss_device *in = ddata->in;  in nec_8048_check_timings()
213 	return in->ops.dpi->check_timings(in, timings);  in nec_8048_check_timings()
233 	struct device_node *node = spi->dev.of_node;  in nec_8048_probe_of()
234 	struct panel_drv_data *ddata = dev_get_drvdata(&spi->dev);  in nec_8048_probe_of()
238 	gpio = of_get_named_gpio(node, "reset-gpios", 0);  in nec_8048_probe_of()
240 		dev_err(&spi->dev, "failed to parse enable gpio\n");  in nec_8048_probe_of()
243 	ddata->res_gpio = gpio;  in nec_8048_probe_of()
245 	/* XXX the panel spec doesn't mention any QVGA pin?? */  in nec_8048_probe_of()
246 	ddata->qvga_gpio = -ENOENT;  in nec_8048_probe_of()
250 		dev_err(&spi->dev, "failed to find video source\n");  in nec_8048_probe_of()
254 	ddata->in = in;  in nec_8048_probe_of()
265 	dev_dbg(&spi->dev, "%s\n", __func__);  in nec_8048_probe()
267 	if (!spi->dev.of_node)  in nec_8048_probe()
268 		return -ENODEV;  in nec_8048_probe()
270 	spi->mode = SPI_MODE_0;  in nec_8048_probe()
271 	spi->bits_per_word = 32;  in nec_8048_probe()
275 		dev_err(&spi->dev, "spi_setup failed: %d\n", r);  in nec_8048_probe()
281 	ddata = devm_kzalloc(&spi->dev, sizeof(*ddata), GFP_KERNEL);  in nec_8048_probe()
283 		return -ENOMEM;  in nec_8048_probe()
285 	dev_set_drvdata(&spi->dev, ddata);  in nec_8048_probe()
287 	ddata->spi = spi;  in nec_8048_probe()
293 	if (gpio_is_valid(ddata->qvga_gpio)) {  in nec_8048_probe()
294 		r = devm_gpio_request_one(&spi->dev, ddata->qvga_gpio,  in nec_8048_probe()
300 	if (gpio_is_valid(ddata->res_gpio)) {  in nec_8048_probe()
301 		r = devm_gpio_request_one(&spi->dev, ddata->res_gpio,  in nec_8048_probe()
307 	ddata->videomode = nec_8048_panel_timings;  in nec_8048_probe()
309 	dssdev = &ddata->dssdev;  in nec_8048_probe()
310 	dssdev->dev = &spi->dev;  in nec_8048_probe()
311 	dssdev->driver = &nec_8048_ops;  in nec_8048_probe()
312 	dssdev->type = OMAP_DISPLAY_TYPE_DPI;  in nec_8048_probe()
313 	dssdev->owner = THIS_MODULE;  in nec_8048_probe()
314 	dssdev->panel.timings = ddata->videomode;  in nec_8048_probe()
318 		dev_err(&spi->dev, "Failed to register panel\n");  in nec_8048_probe()
326 	omap_dss_put_device(ddata->in);  in nec_8048_probe()
332 	struct panel_drv_data *ddata = dev_get_drvdata(&spi->dev);  in nec_8048_remove()
333 	struct omap_dss_device *dssdev = &ddata->dssdev;  in nec_8048_remove()
334 	struct omap_dss_device *in = ddata->in;  in nec_8048_remove()
336 	dev_dbg(&ddata->spi->dev, "%s\n", __func__);  in nec_8048_remove()
363 	/* reinitialize the panel */  in nec_8048_resume()
386 		.name	= "panel-nec-nl8048hl11",
399 MODULE_DESCRIPTION("NEC-NL8048HL11 Driver");