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9#include <linux/component.h>
10#include <linux/module.h>
11#include <linux/platform_device.h>
12#include <linux/reset.h>
13
14#include <drm/drmP.h>
15
16#include "sti_compositor.h"
17#include "sti_crtc.h"
18#include "sti_cursor.h"
19#include "sti_drv.h"
20#include "sti_gdp.h"
21#include "sti_plane.h"
22#include "sti_vid.h"
23#include "sti_vtg.h"
24
25
26
27
28static const struct sti_compositor_data stih407_compositor_data = {
29 .nb_subdev = 8,
30 .subdev_desc = {
31 {STI_CURSOR_SUBDEV, (int)STI_CURSOR, 0x000},
32 {STI_GPD_SUBDEV, (int)STI_GDP_0, 0x100},
33 {STI_GPD_SUBDEV, (int)STI_GDP_1, 0x200},
34 {STI_GPD_SUBDEV, (int)STI_GDP_2, 0x300},
35 {STI_GPD_SUBDEV, (int)STI_GDP_3, 0x400},
36 {STI_VID_SUBDEV, (int)STI_HQVDP_0, 0x700},
37 {STI_MIXER_MAIN_SUBDEV, STI_MIXER_MAIN, 0xC00},
38 {STI_MIXER_AUX_SUBDEV, STI_MIXER_AUX, 0xD00},
39 },
40};
41
42int sti_compositor_debugfs_init(struct sti_compositor *compo,
43 struct drm_minor *minor)
44{
45 unsigned int i;
46
47 for (i = 0; i < STI_MAX_VID; i++)
48 if (compo->vid[i])
49 vid_debugfs_init(compo->vid[i], minor);
50
51 for (i = 0; i < STI_MAX_MIXER; i++)
52 if (compo->mixer[i])
53 sti_mixer_debugfs_init(compo->mixer[i], minor);
54
55 return 0;
56}
57
58static int sti_compositor_bind(struct device *dev,
59 struct device *master,
60 void *data)
61{
62 struct sti_compositor *compo = dev_get_drvdata(dev);
63 struct drm_device *drm_dev = data;
64 unsigned int i, mixer_id = 0, vid_id = 0, crtc_id = 0;
65 struct sti_private *dev_priv = drm_dev->dev_private;
66 struct drm_plane *cursor = NULL;
67 struct drm_plane *primary = NULL;
68 struct sti_compositor_subdev_descriptor *desc = compo->data.subdev_desc;
69 unsigned int array_size = compo->data.nb_subdev;
70
71 dev_priv->compo = compo;
72
73
74 for (i = 0; i < array_size; i++) {
75 switch (desc[i].type) {
76 case STI_VID_SUBDEV:
77 compo->vid[vid_id++] =
78 sti_vid_create(compo->dev, drm_dev, desc[i].id,
79 compo->regs + desc[i].offset);
80 break;
81 case STI_MIXER_MAIN_SUBDEV:
82 case STI_MIXER_AUX_SUBDEV:
83 compo->mixer[mixer_id++] =
84 sti_mixer_create(compo->dev, drm_dev, desc[i].id,
85 compo->regs + desc[i].offset);
86 break;
87 case STI_GPD_SUBDEV:
88 case STI_CURSOR_SUBDEV:
89
90 break;
91 default:
92 DRM_ERROR("Unknown subdev component type\n");
93 return 1;
94 }
95 }
96
97
98 for (i = 0; i < array_size; i++) {
99 enum drm_plane_type plane_type = DRM_PLANE_TYPE_OVERLAY;
100
101 if (crtc_id < mixer_id)
102 plane_type = DRM_PLANE_TYPE_PRIMARY;
103
104 switch (desc[i].type) {
105 case STI_MIXER_MAIN_SUBDEV:
106 case STI_MIXER_AUX_SUBDEV:
107 case STI_VID_SUBDEV:
108
109 break;
110 case STI_CURSOR_SUBDEV:
111 cursor = sti_cursor_create(drm_dev, compo->dev,
112 desc[i].id,
113 compo->regs + desc[i].offset,
114 1);
115 if (!cursor) {
116 DRM_ERROR("Can't create CURSOR plane\n");
117 break;
118 }
119 break;
120 case STI_GPD_SUBDEV:
121 primary = sti_gdp_create(drm_dev, compo->dev,
122 desc[i].id,
123 compo->regs + desc[i].offset,
124 (1 << mixer_id) - 1,
125 plane_type);
126 if (!primary) {
127 DRM_ERROR("Can't create GDP plane\n");
128 break;
129 }
130 break;
131 default:
132 DRM_ERROR("Unknown subdev compoment type\n");
133 return 1;
134 }
135
136
137 if (crtc_id < mixer_id && primary) {
138 sti_crtc_init(drm_dev, compo->mixer[crtc_id],
139 primary, cursor);
140 crtc_id++;
141 cursor = NULL;
142 primary = NULL;
143 }
144 }
145
146 drm_vblank_init(drm_dev, crtc_id);
147
148 drm_dev->irq_enabled = 1;
149
150 return 0;
151}
152
153static void sti_compositor_unbind(struct device *dev, struct device *master,
154 void *data)
155{
156
157}
158
159static const struct component_ops sti_compositor_ops = {
160 .bind = sti_compositor_bind,
161 .unbind = sti_compositor_unbind,
162};
163
164static const struct of_device_id compositor_of_match[] = {
165 {
166 .compatible = "st,stih407-compositor",
167 .data = &stih407_compositor_data,
168 }, {
169
170 }
171};
172MODULE_DEVICE_TABLE(of, compositor_of_match);
173
174static int sti_compositor_probe(struct platform_device *pdev)
175{
176 struct device *dev = &pdev->dev;
177 struct device_node *np = dev->of_node;
178 struct device_node *vtg_np;
179 struct sti_compositor *compo;
180 struct resource *res;
181 unsigned int i;
182
183 compo = devm_kzalloc(dev, sizeof(*compo), GFP_KERNEL);
184 if (!compo) {
185 DRM_ERROR("Failed to allocate compositor context\n");
186 return -ENOMEM;
187 }
188 compo->dev = dev;
189 for (i = 0; i < STI_MAX_MIXER; i++)
190 compo->vtg_vblank_nb[i].notifier_call = sti_crtc_vblank_cb;
191
192
193 BUG_ON(!of_match_node(compositor_of_match, np)->data);
194
195 memcpy(&compo->data, of_match_node(compositor_of_match, np)->data,
196 sizeof(struct sti_compositor_data));
197
198
199 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
200 if (res == NULL) {
201 DRM_ERROR("Get memory resource failed\n");
202 return -ENXIO;
203 }
204 compo->regs = devm_ioremap(dev, res->start, resource_size(res));
205 if (compo->regs == NULL) {
206 DRM_ERROR("Register mapping failed\n");
207 return -ENXIO;
208 }
209
210
211 compo->clk_compo_main = devm_clk_get(dev, "compo_main");
212 if (IS_ERR(compo->clk_compo_main)) {
213 DRM_ERROR("Cannot get compo_main clock\n");
214 return PTR_ERR(compo->clk_compo_main);
215 }
216
217 compo->clk_compo_aux = devm_clk_get(dev, "compo_aux");
218 if (IS_ERR(compo->clk_compo_aux)) {
219 DRM_ERROR("Cannot get compo_aux clock\n");
220 return PTR_ERR(compo->clk_compo_aux);
221 }
222
223 compo->clk_pix_main = devm_clk_get(dev, "pix_main");
224 if (IS_ERR(compo->clk_pix_main)) {
225 DRM_ERROR("Cannot get pix_main clock\n");
226 return PTR_ERR(compo->clk_pix_main);
227 }
228
229 compo->clk_pix_aux = devm_clk_get(dev, "pix_aux");
230 if (IS_ERR(compo->clk_pix_aux)) {
231 DRM_ERROR("Cannot get pix_aux clock\n");
232 return PTR_ERR(compo->clk_pix_aux);
233 }
234
235
236 compo->rst_main = devm_reset_control_get_shared(dev, "compo-main");
237
238 if (!IS_ERR(compo->rst_main))
239 reset_control_deassert(compo->rst_main);
240
241 compo->rst_aux = devm_reset_control_get_shared(dev, "compo-aux");
242
243 if (!IS_ERR(compo->rst_aux))
244 reset_control_deassert(compo->rst_aux);
245
246 vtg_np = of_parse_phandle(pdev->dev.of_node, "st,vtg", 0);
247 if (vtg_np)
248 compo->vtg[STI_MIXER_MAIN] = of_vtg_find(vtg_np);
249 of_node_put(vtg_np);
250
251 vtg_np = of_parse_phandle(pdev->dev.of_node, "st,vtg", 1);
252 if (vtg_np)
253 compo->vtg[STI_MIXER_AUX] = of_vtg_find(vtg_np);
254 of_node_put(vtg_np);
255
256 platform_set_drvdata(pdev, compo);
257
258 return component_add(&pdev->dev, &sti_compositor_ops);
259}
260
261static int sti_compositor_remove(struct platform_device *pdev)
262{
263 component_del(&pdev->dev, &sti_compositor_ops);
264 return 0;
265}
266
267struct platform_driver sti_compositor_driver = {
268 .driver = {
269 .name = "sti-compositor",
270 .of_match_table = compositor_of_match,
271 },
272 .probe = sti_compositor_probe,
273 .remove = sti_compositor_remove,
274};
275
276MODULE_AUTHOR("Benjamin Gaignard <benjamin.gaignard@st.com>");
277MODULE_DESCRIPTION("STMicroelectronics SoC DRM driver");
278MODULE_LICENSE("GPL");
279
