示例#1
0
static int panel_dpi_probe(struct platform_device *pdev)
{
	struct panel_drv_data *ddata;
	struct omap_dss_device *dssdev;
	int r;

	ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
	if (ddata == NULL)
		return -ENOMEM;

	platform_set_drvdata(pdev, ddata);

	r = panel_dpi_probe_of(pdev);
	if (r)
		return r;

	dssdev = &ddata->dssdev;
	dssdev->dev = &pdev->dev;
	dssdev->ops = &panel_dpi_ops;
	dssdev->type = OMAP_DISPLAY_TYPE_DPI;
	dssdev->owner = THIS_MODULE;
	dssdev->of_ports = BIT(0);
	drm_bus_flags_from_videomode(&ddata->vm, &dssdev->bus_flags);

	omapdss_display_init(dssdev);
	omapdss_device_register(dssdev);

	return 0;
}
示例#2
0
static int hdmic_probe(struct platform_device *pdev)
{
	struct panel_drv_data *ddata;
	struct omap_dss_device *dssdev;
	struct gpio_desc *gpio;
	int r;

	ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
	if (!ddata)
		return -ENOMEM;

	platform_set_drvdata(pdev, ddata);
	ddata->dev = &pdev->dev;

	mutex_init(&ddata->hpd_lock);

	/* HPD GPIO */
	gpio = devm_gpiod_get_optional(&pdev->dev, "hpd", GPIOD_IN);
	if (IS_ERR(gpio)) {
		dev_err(&pdev->dev, "failed to parse HPD gpio\n");
		return PTR_ERR(gpio);
	}

	ddata->hpd_gpio = gpio;

	if (ddata->hpd_gpio) {
		r = devm_request_threaded_irq(&pdev->dev,
				gpiod_to_irq(ddata->hpd_gpio),
				NULL, hdmic_hpd_isr,
				IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING |
				IRQF_ONESHOT,
				"hdmic hpd", ddata);
		if (r)
			return r;
	}

	dssdev = &ddata->dssdev;
	dssdev->ops = &hdmic_ops;
	dssdev->dev = &pdev->dev;
	dssdev->type = OMAP_DISPLAY_TYPE_HDMI;
	dssdev->display = true;
	dssdev->owner = THIS_MODULE;
	dssdev->of_ports = BIT(0);
	dssdev->ops_flags = ddata->hpd_gpio
			  ? OMAP_DSS_DEVICE_OP_DETECT | OMAP_DSS_DEVICE_OP_HPD
			  : 0;

	omapdss_display_init(dssdev);
	omapdss_device_register(dssdev);

	return 0;
}