// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2009 Nokia Corporation
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* Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
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*
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* Some code and ideas taken from drivers/video/omap/ driver
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* by Imre Deak.
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*/
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#define DSS_SUBSYS_NAME "DISPLAY"
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#include <linux/kernel.h>
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#include <linux/of.h>
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#include <drm/drm_connector.h>
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#include <drm/drm_modes.h>
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#include "omapdss.h"
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static int disp_num_counter;
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void omapdss_display_init(struct omap_dss_device *dssdev)
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{
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int id;
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/*
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* Note: this presumes that all displays either have an DT alias, or
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* none has.
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*/
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id = of_alias_get_id(dssdev->dev->of_node, "display");
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if (id < 0)
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id = disp_num_counter++;
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/* Use 'label' property for name, if it exists */
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of_property_read_string(dssdev->dev->of_node, "label", &dssdev->name);
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if (dssdev->name == NULL)
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dssdev->name = devm_kasprintf(dssdev->dev, GFP_KERNEL,
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"display%u", id);
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}
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EXPORT_SYMBOL_GPL(omapdss_display_init);
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int omapdss_display_get_modes(struct drm_connector *connector,
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const struct videomode *vm)
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{
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struct drm_display_mode *mode;
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mode = drm_mode_create(connector->dev);
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if (!mode)
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return 0;
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drm_display_mode_from_videomode(vm, mode);
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mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
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drm_mode_set_name(mode);
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drm_mode_probed_add(connector, mode);
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return 1;
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}
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EXPORT_SYMBOL_GPL(omapdss_display_get_modes);
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