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20#include "omap_drv.h"
21
22#include "drm_crtc.h"
23#include "drm_crtc_helper.h"
24
25#include <linux/list.h>
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27
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30
31
32#define to_omap_encoder(x) container_of(x, struct omap_encoder, base)
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38
39struct omap_encoder {
40 struct drm_encoder base;
41 struct omap_dss_device *dssdev;
42};
43
44struct omap_dss_device *omap_encoder_get_dssdev(struct drm_encoder *encoder)
45{
46 struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
47
48 return omap_encoder->dssdev;
49}
50
51static void omap_encoder_destroy(struct drm_encoder *encoder)
52{
53 struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
54 drm_encoder_cleanup(encoder);
55 kfree(omap_encoder);
56}
57
58static const struct drm_encoder_funcs omap_encoder_funcs = {
59 .destroy = omap_encoder_destroy,
60};
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73
74static void omap_encoder_dpms(struct drm_encoder *encoder, int mode)
75{
76}
77
78static bool omap_encoder_mode_fixup(struct drm_encoder *encoder,
79 const struct drm_display_mode *mode,
80 struct drm_display_mode *adjusted_mode)
81{
82 return true;
83}
84
85static void omap_encoder_mode_set(struct drm_encoder *encoder,
86 struct drm_display_mode *mode,
87 struct drm_display_mode *adjusted_mode)
88{
89}
90
91static void omap_encoder_prepare(struct drm_encoder *encoder)
92{
93}
94
95static void omap_encoder_commit(struct drm_encoder *encoder)
96{
97}
98
99static const struct drm_encoder_helper_funcs omap_encoder_helper_funcs = {
100 .dpms = omap_encoder_dpms,
101 .mode_fixup = omap_encoder_mode_fixup,
102 .mode_set = omap_encoder_mode_set,
103 .prepare = omap_encoder_prepare,
104 .commit = omap_encoder_commit,
105};
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107
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110
111
112int omap_encoder_set_enabled(struct drm_encoder *encoder, bool enabled)
113{
114 struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
115 struct omap_dss_device *dssdev = omap_encoder->dssdev;
116 struct omap_dss_driver *dssdrv = dssdev->driver;
117
118 if (enabled) {
119 return dssdrv->enable(dssdev);
120 } else {
121 dssdrv->disable(dssdev);
122 return 0;
123 }
124}
125
126int omap_encoder_update(struct drm_encoder *encoder,
127 struct omap_overlay_manager *mgr,
128 struct omap_video_timings *timings)
129{
130 struct drm_device *dev = encoder->dev;
131 struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
132 struct omap_dss_device *dssdev = omap_encoder->dssdev;
133 struct omap_dss_driver *dssdrv = dssdev->driver;
134 int ret;
135
136 dssdev->output->manager = mgr;
137
138 if (dssdrv->check_timings) {
139 ret = dssdrv->check_timings(dssdev, timings);
140 } else {
141 struct omap_video_timings t = {0};
142
143 dssdrv->get_timings(dssdev, &t);
144
145 if (memcmp(timings, &t, sizeof(struct omap_video_timings)))
146 ret = -EINVAL;
147 else
148 ret = 0;
149 }
150
151 if (ret) {
152 dev_err(dev->dev, "could not set timings: %d\n", ret);
153 return ret;
154 }
155
156 if (dssdrv->set_timings)
157 dssdrv->set_timings(dssdev, timings);
158
159 return 0;
160}
161
162
163struct drm_encoder *omap_encoder_init(struct drm_device *dev,
164 struct omap_dss_device *dssdev)
165{
166 struct drm_encoder *encoder = NULL;
167 struct omap_encoder *omap_encoder;
168
169 omap_encoder = kzalloc(sizeof(*omap_encoder), GFP_KERNEL);
170 if (!omap_encoder)
171 goto fail;
172
173 omap_encoder->dssdev = dssdev;
174
175 encoder = &omap_encoder->base;
176
177 drm_encoder_init(dev, encoder, &omap_encoder_funcs,
178 DRM_MODE_ENCODER_TMDS);
179 drm_encoder_helper_add(encoder, &omap_encoder_helper_funcs);
180
181 return encoder;
182
183fail:
184 if (encoder)
185 omap_encoder_destroy(encoder);
186
187 return NULL;
188}
189