3 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
5 * Inki Dae <inki.dae@samsung.com>
6 * Joonyoung Shim <jy0922.shim@samsung.com>
7 * Seung-Woo Kim <sw0312.kim@samsung.com>
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
16 #include "exynos_drm_drv.h"
17 #include "exynos_drm_crtc.h"
19 static LIST_HEAD(exynos_drm_subdrv_list);
21 int exynos_drm_subdrv_register(struct exynos_drm_subdrv *subdrv)
26 list_add_tail(&subdrv->list, &exynos_drm_subdrv_list);
31 int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *subdrv)
36 list_del(&subdrv->list);
41 int exynos_drm_device_subdrv_probe(struct drm_device *dev)
43 struct exynos_drm_subdrv *subdrv, *n;
49 list_for_each_entry_safe(subdrv, n, &exynos_drm_subdrv_list, list) {
51 subdrv->drm_dev = dev;
54 * this probe callback would be called by sub driver
55 * after setting of all resources to this sub driver,
56 * such as clock, irq and register map are done.
58 err = subdrv->probe(dev, subdrv->dev);
60 DRM_DEBUG("exynos drm subdrv probe failed.\n");
61 list_del(&subdrv->list);
70 int exynos_drm_device_subdrv_remove(struct drm_device *dev)
72 struct exynos_drm_subdrv *subdrv;
75 WARN(1, "Unexpected drm device unregister!\n");
79 list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list) {
81 subdrv->remove(dev, subdrv->dev);
87 int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file)
89 struct exynos_drm_subdrv *subdrv;
92 list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list) {
94 ret = subdrv->open(dev, subdrv->dev, file);
103 list_for_each_entry_continue_reverse(subdrv, &exynos_drm_subdrv_list, list) {
105 subdrv->close(dev, subdrv->dev, file);
110 void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file)
112 struct exynos_drm_subdrv *subdrv;
114 list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list) {
116 subdrv->close(dev, subdrv->dev, file);