forked from mirrors/linux
dac290d0ec
mode_fixup function for encoder drivers became optional with patch http://patchwork.freedesktop.org/patch/msgid/1455106522-32307-1-git-send-email-palminha@synopsys.com This patch set nukes all the dummy mode_fixup implementations. (made on top of Daniel topic/drm-misc branch) Signed-off-by: Carlos Palminha <palminha@synopsys.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/a7ebfb6c6c333056d0a77d2684c539107ee63589.1455540137.git.palminha@synopsys.com
73 lines
1.7 KiB
C
73 lines
1.7 KiB
C
/*
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* Copyright (C) 2012 Red Hat
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* based in parts on udlfb.c:
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* Copyright (C) 2009 Roberto De Ioris <roberto@unbit.it>
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* Copyright (C) 2009 Jaya Kumar <jayakumar.lkml@gmail.com>
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* Copyright (C) 2009 Bernie Thompson <bernie@plugable.com>
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License v2. See the file COPYING in the main directory of this archive for
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* more details.
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*/
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#include <drm/drmP.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_crtc_helper.h>
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#include "udl_drv.h"
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/* dummy encoder */
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static void udl_enc_destroy(struct drm_encoder *encoder)
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{
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drm_encoder_cleanup(encoder);
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kfree(encoder);
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}
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static void udl_encoder_disable(struct drm_encoder *encoder)
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{
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}
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static void udl_encoder_prepare(struct drm_encoder *encoder)
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{
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}
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static void udl_encoder_commit(struct drm_encoder *encoder)
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{
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}
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static void udl_encoder_mode_set(struct drm_encoder *encoder,
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struct drm_display_mode *mode,
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struct drm_display_mode *adjusted_mode)
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{
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}
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static void
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udl_encoder_dpms(struct drm_encoder *encoder, int mode)
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{
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}
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static const struct drm_encoder_helper_funcs udl_helper_funcs = {
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.dpms = udl_encoder_dpms,
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.prepare = udl_encoder_prepare,
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.mode_set = udl_encoder_mode_set,
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.commit = udl_encoder_commit,
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.disable = udl_encoder_disable,
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};
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static const struct drm_encoder_funcs udl_enc_funcs = {
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.destroy = udl_enc_destroy,
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};
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struct drm_encoder *udl_encoder_init(struct drm_device *dev)
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{
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struct drm_encoder *encoder;
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encoder = kzalloc(sizeof(struct drm_encoder), GFP_KERNEL);
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if (!encoder)
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return NULL;
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drm_encoder_init(dev, encoder, &udl_enc_funcs, DRM_MODE_ENCODER_TMDS,
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NULL);
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drm_encoder_helper_add(encoder, &udl_helper_funcs);
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encoder->possible_crtcs = 1;
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return encoder;
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}
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