mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-16 12:36:59 +07:00
b46310eecd
drm_encoder_slave is the old way to write bridge drivers, for i2c bridges only. It's deprecated, and definitely should not be used in new drivers. This has absolutely nothing to do with the new bridge driver infrastructure implemented by drm_bridge. What's even strange is that arcpgu doesn't even use any of this, it really only wants a plain normal drm_encoder. Nuke all the surplus real estate. v2: Actually git add after compile testing ... v3: Clarify commit message and stop including drm_encoder_slave.h. Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Alexey Brodkin <abrodkin@synopsys.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180117141755.16933-1-daniel.vetter@ffwll.ch
57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
/*
|
|
* ARC PGU DRM driver.
|
|
*
|
|
* Copyright (C) 2016 Synopsys, Inc. (www.synopsys.com)
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
#include <drm/drm_crtc.h>
|
|
#include <drm/drm_encoder.h>
|
|
#include <drm/drm_device.h>
|
|
|
|
#include "arcpgu.h"
|
|
|
|
static struct drm_encoder_funcs arcpgu_drm_encoder_funcs = {
|
|
.destroy = drm_encoder_cleanup,
|
|
};
|
|
|
|
int arcpgu_drm_hdmi_init(struct drm_device *drm, struct device_node *np)
|
|
{
|
|
struct drm_encoder *encoder;
|
|
struct drm_bridge *bridge;
|
|
|
|
int ret = 0;
|
|
|
|
encoder = devm_kzalloc(drm->dev, sizeof(*encoder), GFP_KERNEL);
|
|
if (encoder == NULL)
|
|
return -ENOMEM;
|
|
|
|
/* Locate drm bridge from the hdmi encoder DT node */
|
|
bridge = of_drm_find_bridge(np);
|
|
if (!bridge)
|
|
return -EPROBE_DEFER;
|
|
|
|
encoder->possible_crtcs = 1;
|
|
encoder->possible_clones = 0;
|
|
ret = drm_encoder_init(drm, encoder, &arcpgu_drm_encoder_funcs,
|
|
DRM_MODE_ENCODER_TMDS, NULL);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* Link drm_bridge to encoder */
|
|
ret = drm_bridge_attach(encoder, bridge, NULL);
|
|
if (ret)
|
|
drm_encoder_cleanup(encoder);
|
|
|
|
return ret;
|
|
}
|