drm/exynos: Fix potential NULL pointer dereference
[deliverable/linux.git] / drivers / gpu / drm / exynos / exynos_drm_encoder.h
1 /*
2 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
3 * Authors:
4 * Inki Dae <inki.dae@samsung.com>
5 * Joonyoung Shim <jy0922.shim@samsung.com>
6 * Seung-Woo Kim <sw0312.kim@samsung.com>
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the next
16 * paragraph) shall be included in all copies or substantial portions of the
17 * Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
23 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
24 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
25 * OTHER DEALINGS IN THE SOFTWARE.
26 */
27
28 #ifndef _EXYNOS_DRM_ENCODER_H_
29 #define _EXYNOS_DRM_ENCODER_H_
30
31 struct exynos_drm_manager;
32
33 void exynos_drm_encoder_setup(struct drm_device *dev);
34 struct drm_encoder *exynos_drm_encoder_create(struct drm_device *dev,
35 struct exynos_drm_manager *mgr,
36 unsigned int possible_crtcs);
37 struct exynos_drm_manager *
38 exynos_drm_get_manager(struct drm_encoder *encoder);
39 void exynos_drm_fn_encoder(struct drm_crtc *crtc, void *data,
40 void (*fn)(struct drm_encoder *, void *));
41 void exynos_drm_enable_vblank(struct drm_encoder *encoder, void *data);
42 void exynos_drm_disable_vblank(struct drm_encoder *encoder, void *data);
43 void exynos_drm_encoder_crtc_dpms(struct drm_encoder *encoder, void *data);
44 void exynos_drm_encoder_crtc_pipe(struct drm_encoder *encoder, void *data);
45 void exynos_drm_encoder_plane_mode_set(struct drm_encoder *encoder, void *data);
46 void exynos_drm_encoder_plane_commit(struct drm_encoder *encoder, void *data);
47 void exynos_drm_encoder_plane_enable(struct drm_encoder *encoder, void *data);
48 void exynos_drm_encoder_plane_disable(struct drm_encoder *encoder, void *data);
49
50 #endif
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