![Laurent Pinchart](/assets/img/avatar_default.png)
Add a new omapdss_display_get() function to retrieve the omap_dss_device for a given DSS output. This will be used when reversing the direction of the DSS pipeline handling logic. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
/*
|
|
* 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.
|
|
*
|
|
* 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/>.
|
|
*/
|
|
|
|
#define DSS_SUBSYS_NAME "DISPLAY"
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/of.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++;
|
|
|
|
dssdev->alias_id = id;
|
|
|
|
/* 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);
|