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_encoder.h"
18 #include "exynos_drm_connector.h"
19 #include "exynos_drm_fbdev.h"
21 static LIST_HEAD(exynos_drm_subdrv_list
);
23 static int exynos_drm_create_enc_conn(struct drm_device
*dev
,
24 struct exynos_drm_subdrv
*subdrv
)
26 struct drm_encoder
*encoder
;
27 struct drm_connector
*connector
;
30 DRM_DEBUG_DRIVER("%s\n", __FILE__
);
32 subdrv
->manager
->dev
= subdrv
->dev
;
34 /* create and initialize a encoder for this sub driver. */
35 encoder
= exynos_drm_encoder_create(dev
, subdrv
->manager
,
38 DRM_ERROR("failed to create encoder\n");
43 * create and initialize a connector for this sub driver and
44 * attach the encoder created above to the connector.
46 connector
= exynos_drm_connector_create(dev
, encoder
);
48 DRM_ERROR("failed to create connector\n");
50 goto err_destroy_encoder
;
53 subdrv
->encoder
= encoder
;
54 subdrv
->connector
= connector
;
59 encoder
->funcs
->destroy(encoder
);
63 static void exynos_drm_destroy_enc_conn(struct exynos_drm_subdrv
*subdrv
)
65 if (subdrv
->encoder
) {
66 struct drm_encoder
*encoder
= subdrv
->encoder
;
67 encoder
->funcs
->destroy(encoder
);
68 subdrv
->encoder
= NULL
;
71 if (subdrv
->connector
) {
72 struct drm_connector
*connector
= subdrv
->connector
;
73 connector
->funcs
->destroy(connector
);
74 subdrv
->connector
= NULL
;
78 static int exynos_drm_subdrv_probe(struct drm_device
*dev
,
79 struct exynos_drm_subdrv
*subdrv
)
84 subdrv
->drm_dev
= dev
;
87 * this probe callback would be called by sub driver
88 * after setting of all resources to this sub driver,
89 * such as clock, irq and register map are done or by load()
90 * of exynos drm driver.
92 * P.S. note that this driver is considered for modularization.
94 ret
= subdrv
->probe(dev
, subdrv
->dev
);
102 static void exynos_drm_subdrv_remove(struct drm_device
*dev
,
103 struct exynos_drm_subdrv
*subdrv
)
105 DRM_DEBUG_DRIVER("%s\n", __FILE__
);
108 subdrv
->remove(dev
, subdrv
->dev
);
111 int exynos_drm_device_register(struct drm_device
*dev
)
113 struct exynos_drm_subdrv
*subdrv
, *n
;
114 unsigned int fine_cnt
= 0;
117 DRM_DEBUG_DRIVER("%s\n", __FILE__
);
122 list_for_each_entry_safe(subdrv
, n
, &exynos_drm_subdrv_list
, list
) {
123 err
= exynos_drm_subdrv_probe(dev
, subdrv
);
125 DRM_DEBUG("exynos drm subdrv probe failed.\n");
126 list_del(&subdrv
->list
);
131 * if manager is null then it means that this sub driver
132 * doesn't need encoder and connector.
134 if (!subdrv
->manager
) {
139 err
= exynos_drm_create_enc_conn(dev
, subdrv
);
141 DRM_DEBUG("failed to create encoder and connector.\n");
142 exynos_drm_subdrv_remove(dev
, subdrv
);
143 list_del(&subdrv
->list
);
155 EXPORT_SYMBOL_GPL(exynos_drm_device_register
);
157 int exynos_drm_device_unregister(struct drm_device
*dev
)
159 struct exynos_drm_subdrv
*subdrv
;
161 DRM_DEBUG_DRIVER("%s\n", __FILE__
);
164 WARN(1, "Unexpected drm device unregister!\n");
168 list_for_each_entry(subdrv
, &exynos_drm_subdrv_list
, list
) {
169 exynos_drm_subdrv_remove(dev
, subdrv
);
170 exynos_drm_destroy_enc_conn(subdrv
);
175 EXPORT_SYMBOL_GPL(exynos_drm_device_unregister
);
177 int exynos_drm_subdrv_register(struct exynos_drm_subdrv
*subdrv
)
179 DRM_DEBUG_DRIVER("%s\n", __FILE__
);
184 list_add_tail(&subdrv
->list
, &exynos_drm_subdrv_list
);
188 EXPORT_SYMBOL_GPL(exynos_drm_subdrv_register
);
190 int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv
*subdrv
)
192 DRM_DEBUG_DRIVER("%s\n", __FILE__
);
197 list_del(&subdrv
->list
);
201 EXPORT_SYMBOL_GPL(exynos_drm_subdrv_unregister
);
203 int exynos_drm_subdrv_open(struct drm_device
*dev
, struct drm_file
*file
)
205 struct exynos_drm_subdrv
*subdrv
;
208 list_for_each_entry(subdrv
, &exynos_drm_subdrv_list
, list
) {
210 ret
= subdrv
->open(dev
, subdrv
->dev
, file
);
219 list_for_each_entry_reverse(subdrv
, &subdrv
->list
, list
) {
221 subdrv
->close(dev
, subdrv
->dev
, file
);
225 EXPORT_SYMBOL_GPL(exynos_drm_subdrv_open
);
227 void exynos_drm_subdrv_close(struct drm_device
*dev
, struct drm_file
*file
)
229 struct exynos_drm_subdrv
*subdrv
;
231 list_for_each_entry(subdrv
, &exynos_drm_subdrv_list
, list
) {
233 subdrv
->close(dev
, subdrv
->dev
, file
);
236 EXPORT_SYMBOL_GPL(exynos_drm_subdrv_close
);