linux_dsm_epyc7002/drivers/gpu/drm/omapdrm/dss/display.c
Thomas Gleixner caab277b1d treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details you should have received a copy of the gnu general
  public license along with this program if not see http www gnu org
  licenses

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 503 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Enrico Weigelt <info@metux.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190602204653.811534538@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:07 +02:00

70 lines
1.6 KiB
C

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