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/*
* Copyright (C) 2012 Red Hat
* based in parts on udlfb.c:
* Copyright (C) 2009 Roberto De Ioris <roberto@unbit.it>
* Copyright (C) 2009 Jaya Kumar <jayakumar.lkml@gmail.com>
* Copyright (C) 2009 Bernie Thompson <bernie@plugable.com>
*
* This file is subject to the terms and conditions of the GNU General Public
* License v2. See the file COPYING in the main directory of this archive for
* more details.
*/
#include <drm/drmP.h>
#include <drm/drm_crtc.h>
#include <drm/drm_crtc_helper.h>
#include "udl_drv.h"
/* dummy encoder */
static void udl_enc_destroy(struct drm_encoder *encoder)
{
drm_encoder_cleanup(encoder);
kfree(encoder);
}
static void udl_encoder_disable(struct drm_encoder *encoder)
{
}
static bool udl_mode_fixup(struct drm_encoder *encoder,
const struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
return true;
}
static void udl_encoder_prepare(struct drm_encoder *encoder)
{
}
static void udl_encoder_commit(struct drm_encoder *encoder)
{
}
static void udl_encoder_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
}
static void
udl_encoder_dpms(struct drm_encoder *encoder, int mode)
{
}
static const struct drm_encoder_helper_funcs udl_helper_funcs = {
.dpms = udl_encoder_dpms,
.mode_fixup = udl_mode_fixup,
.prepare = udl_encoder_prepare,
.mode_set = udl_encoder_mode_set,
.commit = udl_encoder_commit,
.disable = udl_encoder_disable,
};
static const struct drm_encoder_funcs udl_enc_funcs = {
.destroy = udl_enc_destroy,
};
struct drm_encoder *udl_encoder_init(struct drm_device *dev)
{
struct drm_encoder *encoder;
encoder = kzalloc(sizeof(struct drm_encoder), GFP_KERNEL);
if (!encoder)
return NULL;
drm_encoder_init(dev, encoder, &udl_enc_funcs, DRM_MODE_ENCODER_TMDS);
drm_encoder_helper_add(encoder, &udl_helper_funcs);
encoder->possible_crtcs = 1;
return encoder;
}
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