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1/*
2 * Copyright (C) 2014-2015 Broadcom
3 * Copyright (C) 2013 Red Hat
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 */
9
10#include <linux/clk.h>
11#include <linux/component.h>
12#include <linux/device.h>
13#include <linux/io.h>
14#include <linux/module.h>
15#include <linux/of_platform.h>
16#include <linux/platform_device.h>
17#include "drm_fb_cma_helper.h"
18
19#include "uapi/drm/vc4_drm.h"
20#include "vc4_drv.h"
21#include "vc4_regs.h"
22
23#define DRIVER_NAME "vc4"
24#define DRIVER_DESC "Broadcom VC4 graphics"
25#define DRIVER_DATE "20140616"
26#define DRIVER_MAJOR 0
27#define DRIVER_MINOR 0
28#define DRIVER_PATCHLEVEL 0
29
30/* Helper function for mapping the regs on a platform device. */
31void __iomem *vc4_ioremap_regs(struct platform_device *dev, int index)
32{
33 struct resource *res;
34 void __iomem *map;
35
36 res = platform_get_resource(dev, IORESOURCE_MEM, index);
37 map = devm_ioremap_resource(&dev->dev, res);
38 if (IS_ERR(map)) {
39 DRM_ERROR("Failed to map registers: %ld\n", PTR_ERR(map));
40 return map;
41 }
42
43 return map;
44}
45
46static void vc4_lastclose(struct drm_device *dev)
47{
48 struct vc4_dev *vc4 = to_vc4_dev(dev);
49
50 if (vc4->fbdev)
51 drm_fbdev_cma_restore_mode(vc4->fbdev);
52}
53
54static const struct file_operations vc4_drm_fops = {
55 .owner = THIS_MODULE,
56 .open = drm_open,
57 .release = drm_release,
58 .unlocked_ioctl = drm_ioctl,
59 .mmap = vc4_mmap,
60 .poll = drm_poll,
61 .read = drm_read,
62#ifdef CONFIG_COMPAT
63 .compat_ioctl = drm_compat_ioctl,
64#endif
65 .llseek = noop_llseek,
66};
67
68static const struct drm_ioctl_desc vc4_drm_ioctls[] = {
69 DRM_IOCTL_DEF_DRV(VC4_SUBMIT_CL, vc4_submit_cl_ioctl, 0),
70 DRM_IOCTL_DEF_DRV(VC4_WAIT_SEQNO, vc4_wait_seqno_ioctl, 0),
71 DRM_IOCTL_DEF_DRV(VC4_WAIT_BO, vc4_wait_bo_ioctl, 0),
72 DRM_IOCTL_DEF_DRV(VC4_CREATE_BO, vc4_create_bo_ioctl, 0),
73 DRM_IOCTL_DEF_DRV(VC4_MMAP_BO, vc4_mmap_bo_ioctl, 0),
74 DRM_IOCTL_DEF_DRV(VC4_CREATE_SHADER_BO, vc4_create_shader_bo_ioctl, 0),
75 DRM_IOCTL_DEF_DRV(VC4_GET_HANG_STATE, vc4_get_hang_state_ioctl,
76 DRM_ROOT_ONLY),
77};
78
79static struct drm_driver vc4_drm_driver = {
80 .driver_features = (DRIVER_MODESET |
81 DRIVER_ATOMIC |
82 DRIVER_GEM |
83 DRIVER_HAVE_IRQ |
84 DRIVER_PRIME),
85 .lastclose = vc4_lastclose,
86 .irq_handler = vc4_irq,
87 .irq_preinstall = vc4_irq_preinstall,
88 .irq_postinstall = vc4_irq_postinstall,
89 .irq_uninstall = vc4_irq_uninstall,
90
91 .enable_vblank = vc4_enable_vblank,
92 .disable_vblank = vc4_disable_vblank,
93 .get_vblank_counter = drm_vblank_count,
94
95#if defined(CONFIG_DEBUG_FS)
96 .debugfs_init = vc4_debugfs_init,
97 .debugfs_cleanup = vc4_debugfs_cleanup,
98#endif
99
100 .gem_create_object = vc4_create_object,
101 .gem_free_object = vc4_free_object,
102 .gem_vm_ops = &drm_gem_cma_vm_ops,
103
104 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
105 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
106 .gem_prime_import = drm_gem_prime_import,
107 .gem_prime_export = vc4_prime_export,
108 .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
109 .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
110 .gem_prime_vmap = vc4_prime_vmap,
111 .gem_prime_vunmap = drm_gem_cma_prime_vunmap,
112 .gem_prime_mmap = vc4_prime_mmap,
113
114 .dumb_create = vc4_dumb_create,
115 .dumb_map_offset = drm_gem_cma_dumb_map_offset,
116 .dumb_destroy = drm_gem_dumb_destroy,
117
118 .ioctls = vc4_drm_ioctls,
119 .num_ioctls = ARRAY_SIZE(vc4_drm_ioctls),
120 .fops = &vc4_drm_fops,
121
122 .name = DRIVER_NAME,
123 .desc = DRIVER_DESC,
124 .date = DRIVER_DATE,
125 .major = DRIVER_MAJOR,
126 .minor = DRIVER_MINOR,
127 .patchlevel = DRIVER_PATCHLEVEL,
128};
129
130static int compare_dev(struct device *dev, void *data)
131{
132 return dev == data;
133}
134
135static void vc4_match_add_drivers(struct device *dev,
136 struct component_match **match,
137 struct platform_driver *const *drivers,
138 int count)
139{
140 int i;
141
142 for (i = 0; i < count; i++) {
143 struct device_driver *drv = &drivers[i]->driver;
144 struct device *p = NULL, *d;
145
146 while ((d = bus_find_device(&platform_bus_type, p, drv,
147 (void *)platform_bus_type.match))) {
148 put_device(p);
149 component_match_add(dev, match, compare_dev, d);
150 p = d;
151 }
152 put_device(p);
153 }
154}
155
156static int vc4_drm_bind(struct device *dev)
157{
158 struct platform_device *pdev = to_platform_device(dev);
159 struct drm_device *drm;
160 struct drm_connector *connector;
161 struct vc4_dev *vc4;
162 int ret = 0;
163
164 dev->coherent_dma_mask = DMA_BIT_MASK(32);
165
166 vc4 = devm_kzalloc(dev, sizeof(*vc4), GFP_KERNEL);
167 if (!vc4)
168 return -ENOMEM;
169
170 drm = drm_dev_alloc(&vc4_drm_driver, dev);
171 if (!drm)
172 return -ENOMEM;
173 platform_set_drvdata(pdev, drm);
174 vc4->dev = drm;
175 drm->dev_private = vc4;
176
177 vc4_bo_cache_init(drm);
178
179 drm_mode_config_init(drm);
180 if (ret)
181 goto unref;
182
183 vc4_gem_init(drm);
184
185 ret = component_bind_all(dev, drm);
186 if (ret)
187 goto gem_destroy;
188
189 ret = drm_dev_register(drm, 0);
190 if (ret < 0)
191 goto unbind_all;
192
193 /* Connector registration has to occur after DRM device
194 * registration, because it creates sysfs entries based on the
195 * DRM device.
196 */
197 list_for_each_entry(connector, &drm->mode_config.connector_list, head) {
198 ret = drm_connector_register(connector);
199 if (ret)
200 goto unregister;
201 }
202
203 vc4_kms_load(drm);
204
205 return 0;
206
207unregister:
208 drm_dev_unregister(drm);
209unbind_all:
210 component_unbind_all(dev, drm);
211gem_destroy:
212 vc4_gem_destroy(drm);
213unref:
214 drm_dev_unref(drm);
215 vc4_bo_cache_destroy(drm);
216 return ret;
217}
218
219static void vc4_drm_unbind(struct device *dev)
220{
221 struct platform_device *pdev = to_platform_device(dev);
222 struct drm_device *drm = platform_get_drvdata(pdev);
223 struct vc4_dev *vc4 = to_vc4_dev(drm);
224
225 if (vc4->fbdev)
226 drm_fbdev_cma_fini(vc4->fbdev);
227
228 drm_mode_config_cleanup(drm);
229
230 drm_put_dev(drm);
231}
232
233static const struct component_master_ops vc4_drm_ops = {
234 .bind = vc4_drm_bind,
235 .unbind = vc4_drm_unbind,
236};
237
238static struct platform_driver *const component_drivers[] = {
239 &vc4_hdmi_driver,
240 &vc4_crtc_driver,
241 &vc4_hvs_driver,
242 &vc4_v3d_driver,
243};
244
245static int vc4_platform_drm_probe(struct platform_device *pdev)
246{
247 struct component_match *match = NULL;
248 struct device *dev = &pdev->dev;
249
250 vc4_match_add_drivers(dev, &match,
251 component_drivers, ARRAY_SIZE(component_drivers));
252
253 return component_master_add_with_match(dev, &vc4_drm_ops, match);
254}
255
256static int vc4_platform_drm_remove(struct platform_device *pdev)
257{
258 component_master_del(&pdev->dev, &vc4_drm_ops);
259
260 return 0;
261}
262
263static const struct of_device_id vc4_of_match[] = {
264 { .compatible = "brcm,bcm2835-vc4", },
265 {},
266};
267MODULE_DEVICE_TABLE(of, vc4_of_match);
268
269static struct platform_driver vc4_platform_driver = {
270 .probe = vc4_platform_drm_probe,
271 .remove = vc4_platform_drm_remove,
272 .driver = {
273 .name = "vc4-drm",
274 .of_match_table = vc4_of_match,
275 },
276};
277
278static int __init vc4_drm_register(void)
279{
280 int i, ret;
281
282 for (i = 0; i < ARRAY_SIZE(component_drivers); i++) {
283 ret = platform_driver_register(component_drivers[i]);
284 if (ret) {
285 while (--i >= 0)
286 platform_driver_unregister(component_drivers[i]);
287 return ret;
288 }
289 }
290 return platform_driver_register(&vc4_platform_driver);
291}
292
293static void __exit vc4_drm_unregister(void)
294{
295 int i;
296
297 for (i = ARRAY_SIZE(component_drivers) - 1; i >= 0; i--)
298 platform_driver_unregister(component_drivers[i]);
299
300 platform_driver_unregister(&vc4_platform_driver);
301}
302
303module_init(vc4_drm_register);
304module_exit(vc4_drm_unregister);
305
306MODULE_ALIAS("platform:vc4-drm");
307MODULE_DESCRIPTION("Broadcom VC4 DRM Driver");
308MODULE_AUTHOR("Eric Anholt <eric@anholt.net>");
309MODULE_LICENSE("GPL v2");
1/*
2 * Copyright (C) 2014-2015 Broadcom
3 * Copyright (C) 2013 Red Hat
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 */
9
10/**
11 * DOC: Broadcom VC4 Graphics Driver
12 *
13 * The Broadcom VideoCore 4 (present in the Raspberry Pi) contains a
14 * OpenGL ES 2.0-compatible 3D engine called V3D, and a highly
15 * configurable display output pipeline that supports HDMI, DSI, DPI,
16 * and Composite TV output.
17 *
18 * The 3D engine also has an interface for submitting arbitrary
19 * compute shader-style jobs using the same shader processor as is
20 * used for vertex and fragment shaders in GLES 2.0. However, given
21 * that the hardware isn't able to expose any standard interfaces like
22 * OpenGL compute shaders or OpenCL, it isn't supported by this
23 * driver.
24 */
25
26#include <linux/clk.h>
27#include <linux/component.h>
28#include <linux/device.h>
29#include <linux/io.h>
30#include <linux/module.h>
31#include <linux/of_platform.h>
32#include <linux/platform_device.h>
33#include <linux/pm_runtime.h>
34#include <drm/drm_fb_cma_helper.h>
35#include <drm/drm_fb_helper.h>
36
37#include "uapi/drm/vc4_drm.h"
38#include "vc4_drv.h"
39#include "vc4_regs.h"
40
41#define DRIVER_NAME "vc4"
42#define DRIVER_DESC "Broadcom VC4 graphics"
43#define DRIVER_DATE "20140616"
44#define DRIVER_MAJOR 0
45#define DRIVER_MINOR 0
46#define DRIVER_PATCHLEVEL 0
47
48/* Helper function for mapping the regs on a platform device. */
49void __iomem *vc4_ioremap_regs(struct platform_device *dev, int index)
50{
51 struct resource *res;
52 void __iomem *map;
53
54 res = platform_get_resource(dev, IORESOURCE_MEM, index);
55 map = devm_ioremap_resource(&dev->dev, res);
56 if (IS_ERR(map)) {
57 DRM_ERROR("Failed to map registers: %ld\n", PTR_ERR(map));
58 return map;
59 }
60
61 return map;
62}
63
64static int vc4_get_param_ioctl(struct drm_device *dev, void *data,
65 struct drm_file *file_priv)
66{
67 struct vc4_dev *vc4 = to_vc4_dev(dev);
68 struct drm_vc4_get_param *args = data;
69 int ret;
70
71 if (args->pad != 0)
72 return -EINVAL;
73
74 switch (args->param) {
75 case DRM_VC4_PARAM_V3D_IDENT0:
76 ret = pm_runtime_get_sync(&vc4->v3d->pdev->dev);
77 if (ret < 0)
78 return ret;
79 args->value = V3D_READ(V3D_IDENT0);
80 pm_runtime_mark_last_busy(&vc4->v3d->pdev->dev);
81 pm_runtime_put_autosuspend(&vc4->v3d->pdev->dev);
82 break;
83 case DRM_VC4_PARAM_V3D_IDENT1:
84 ret = pm_runtime_get_sync(&vc4->v3d->pdev->dev);
85 if (ret < 0)
86 return ret;
87 args->value = V3D_READ(V3D_IDENT1);
88 pm_runtime_mark_last_busy(&vc4->v3d->pdev->dev);
89 pm_runtime_put_autosuspend(&vc4->v3d->pdev->dev);
90 break;
91 case DRM_VC4_PARAM_V3D_IDENT2:
92 ret = pm_runtime_get_sync(&vc4->v3d->pdev->dev);
93 if (ret < 0)
94 return ret;
95 args->value = V3D_READ(V3D_IDENT2);
96 pm_runtime_mark_last_busy(&vc4->v3d->pdev->dev);
97 pm_runtime_put_autosuspend(&vc4->v3d->pdev->dev);
98 break;
99 case DRM_VC4_PARAM_SUPPORTS_BRANCHES:
100 case DRM_VC4_PARAM_SUPPORTS_ETC1:
101 case DRM_VC4_PARAM_SUPPORTS_THREADED_FS:
102 case DRM_VC4_PARAM_SUPPORTS_FIXED_RCL_ORDER:
103 case DRM_VC4_PARAM_SUPPORTS_MADVISE:
104 case DRM_VC4_PARAM_SUPPORTS_PERFMON:
105 args->value = true;
106 break;
107 default:
108 DRM_DEBUG("Unknown parameter %d\n", args->param);
109 return -EINVAL;
110 }
111
112 return 0;
113}
114
115static int vc4_open(struct drm_device *dev, struct drm_file *file)
116{
117 struct vc4_file *vc4file;
118
119 vc4file = kzalloc(sizeof(*vc4file), GFP_KERNEL);
120 if (!vc4file)
121 return -ENOMEM;
122
123 vc4_perfmon_open_file(vc4file);
124 file->driver_priv = vc4file;
125 return 0;
126}
127
128static void vc4_close(struct drm_device *dev, struct drm_file *file)
129{
130 struct vc4_file *vc4file = file->driver_priv;
131
132 vc4_perfmon_close_file(vc4file);
133 kfree(vc4file);
134}
135
136static const struct vm_operations_struct vc4_vm_ops = {
137 .fault = vc4_fault,
138 .open = drm_gem_vm_open,
139 .close = drm_gem_vm_close,
140};
141
142static const struct file_operations vc4_drm_fops = {
143 .owner = THIS_MODULE,
144 .open = drm_open,
145 .release = drm_release,
146 .unlocked_ioctl = drm_ioctl,
147 .mmap = vc4_mmap,
148 .poll = drm_poll,
149 .read = drm_read,
150 .compat_ioctl = drm_compat_ioctl,
151 .llseek = noop_llseek,
152};
153
154static const struct drm_ioctl_desc vc4_drm_ioctls[] = {
155 DRM_IOCTL_DEF_DRV(VC4_SUBMIT_CL, vc4_submit_cl_ioctl, DRM_RENDER_ALLOW),
156 DRM_IOCTL_DEF_DRV(VC4_WAIT_SEQNO, vc4_wait_seqno_ioctl, DRM_RENDER_ALLOW),
157 DRM_IOCTL_DEF_DRV(VC4_WAIT_BO, vc4_wait_bo_ioctl, DRM_RENDER_ALLOW),
158 DRM_IOCTL_DEF_DRV(VC4_CREATE_BO, vc4_create_bo_ioctl, DRM_RENDER_ALLOW),
159 DRM_IOCTL_DEF_DRV(VC4_MMAP_BO, vc4_mmap_bo_ioctl, DRM_RENDER_ALLOW),
160 DRM_IOCTL_DEF_DRV(VC4_CREATE_SHADER_BO, vc4_create_shader_bo_ioctl, DRM_RENDER_ALLOW),
161 DRM_IOCTL_DEF_DRV(VC4_GET_HANG_STATE, vc4_get_hang_state_ioctl,
162 DRM_ROOT_ONLY),
163 DRM_IOCTL_DEF_DRV(VC4_GET_PARAM, vc4_get_param_ioctl, DRM_RENDER_ALLOW),
164 DRM_IOCTL_DEF_DRV(VC4_SET_TILING, vc4_set_tiling_ioctl, DRM_RENDER_ALLOW),
165 DRM_IOCTL_DEF_DRV(VC4_GET_TILING, vc4_get_tiling_ioctl, DRM_RENDER_ALLOW),
166 DRM_IOCTL_DEF_DRV(VC4_LABEL_BO, vc4_label_bo_ioctl, DRM_RENDER_ALLOW),
167 DRM_IOCTL_DEF_DRV(VC4_GEM_MADVISE, vc4_gem_madvise_ioctl, DRM_RENDER_ALLOW),
168 DRM_IOCTL_DEF_DRV(VC4_PERFMON_CREATE, vc4_perfmon_create_ioctl, DRM_RENDER_ALLOW),
169 DRM_IOCTL_DEF_DRV(VC4_PERFMON_DESTROY, vc4_perfmon_destroy_ioctl, DRM_RENDER_ALLOW),
170 DRM_IOCTL_DEF_DRV(VC4_PERFMON_GET_VALUES, vc4_perfmon_get_values_ioctl, DRM_RENDER_ALLOW),
171};
172
173static struct drm_driver vc4_drm_driver = {
174 .driver_features = (DRIVER_MODESET |
175 DRIVER_ATOMIC |
176 DRIVER_GEM |
177 DRIVER_HAVE_IRQ |
178 DRIVER_RENDER |
179 DRIVER_PRIME),
180 .lastclose = drm_fb_helper_lastclose,
181 .open = vc4_open,
182 .postclose = vc4_close,
183 .irq_handler = vc4_irq,
184 .irq_preinstall = vc4_irq_preinstall,
185 .irq_postinstall = vc4_irq_postinstall,
186 .irq_uninstall = vc4_irq_uninstall,
187
188 .get_scanout_position = vc4_crtc_get_scanoutpos,
189 .get_vblank_timestamp = drm_calc_vbltimestamp_from_scanoutpos,
190
191#if defined(CONFIG_DEBUG_FS)
192 .debugfs_init = vc4_debugfs_init,
193#endif
194
195 .gem_create_object = vc4_create_object,
196 .gem_free_object_unlocked = vc4_free_object,
197 .gem_vm_ops = &vc4_vm_ops,
198
199 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
200 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
201 .gem_prime_import = drm_gem_prime_import,
202 .gem_prime_export = vc4_prime_export,
203 .gem_prime_res_obj = vc4_prime_res_obj,
204 .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
205 .gem_prime_import_sg_table = vc4_prime_import_sg_table,
206 .gem_prime_vmap = vc4_prime_vmap,
207 .gem_prime_vunmap = drm_gem_cma_prime_vunmap,
208 .gem_prime_mmap = vc4_prime_mmap,
209
210 .dumb_create = vc4_dumb_create,
211
212 .ioctls = vc4_drm_ioctls,
213 .num_ioctls = ARRAY_SIZE(vc4_drm_ioctls),
214 .fops = &vc4_drm_fops,
215
216 .name = DRIVER_NAME,
217 .desc = DRIVER_DESC,
218 .date = DRIVER_DATE,
219 .major = DRIVER_MAJOR,
220 .minor = DRIVER_MINOR,
221 .patchlevel = DRIVER_PATCHLEVEL,
222};
223
224static int compare_dev(struct device *dev, void *data)
225{
226 return dev == data;
227}
228
229static void vc4_match_add_drivers(struct device *dev,
230 struct component_match **match,
231 struct platform_driver *const *drivers,
232 int count)
233{
234 int i;
235
236 for (i = 0; i < count; i++) {
237 struct device_driver *drv = &drivers[i]->driver;
238 struct device *p = NULL, *d;
239
240 while ((d = bus_find_device(&platform_bus_type, p, drv,
241 (void *)platform_bus_type.match))) {
242 put_device(p);
243 component_match_add(dev, match, compare_dev, d);
244 p = d;
245 }
246 put_device(p);
247 }
248}
249
250static void vc4_kick_out_firmware_fb(void)
251{
252 struct apertures_struct *ap;
253
254 ap = alloc_apertures(1);
255 if (!ap)
256 return;
257
258 /* Since VC4 is a UMA device, the simplefb node may have been
259 * located anywhere in memory.
260 */
261 ap->ranges[0].base = 0;
262 ap->ranges[0].size = ~0;
263
264 drm_fb_helper_remove_conflicting_framebuffers(ap, "vc4drmfb", false);
265 kfree(ap);
266}
267
268static int vc4_drm_bind(struct device *dev)
269{
270 struct platform_device *pdev = to_platform_device(dev);
271 struct drm_device *drm;
272 struct vc4_dev *vc4;
273 int ret = 0;
274
275 dev->coherent_dma_mask = DMA_BIT_MASK(32);
276
277 vc4 = devm_kzalloc(dev, sizeof(*vc4), GFP_KERNEL);
278 if (!vc4)
279 return -ENOMEM;
280
281 drm = drm_dev_alloc(&vc4_drm_driver, dev);
282 if (IS_ERR(drm))
283 return PTR_ERR(drm);
284 platform_set_drvdata(pdev, drm);
285 vc4->dev = drm;
286 drm->dev_private = vc4;
287
288 ret = vc4_bo_cache_init(drm);
289 if (ret)
290 goto dev_unref;
291
292 drm_mode_config_init(drm);
293
294 vc4_gem_init(drm);
295
296 ret = component_bind_all(dev, drm);
297 if (ret)
298 goto gem_destroy;
299
300 vc4_kick_out_firmware_fb();
301
302 ret = drm_dev_register(drm, 0);
303 if (ret < 0)
304 goto unbind_all;
305
306 vc4_kms_load(drm);
307
308 return 0;
309
310unbind_all:
311 component_unbind_all(dev, drm);
312gem_destroy:
313 vc4_gem_destroy(drm);
314 vc4_bo_cache_destroy(drm);
315dev_unref:
316 drm_dev_unref(drm);
317 return ret;
318}
319
320static void vc4_drm_unbind(struct device *dev)
321{
322 struct platform_device *pdev = to_platform_device(dev);
323 struct drm_device *drm = platform_get_drvdata(pdev);
324
325 drm_dev_unregister(drm);
326
327 drm_fb_cma_fbdev_fini(drm);
328
329 drm_mode_config_cleanup(drm);
330
331 drm_dev_unref(drm);
332}
333
334static const struct component_master_ops vc4_drm_ops = {
335 .bind = vc4_drm_bind,
336 .unbind = vc4_drm_unbind,
337};
338
339static struct platform_driver *const component_drivers[] = {
340 &vc4_hdmi_driver,
341 &vc4_vec_driver,
342 &vc4_dpi_driver,
343 &vc4_dsi_driver,
344 &vc4_hvs_driver,
345 &vc4_crtc_driver,
346 &vc4_v3d_driver,
347};
348
349static int vc4_platform_drm_probe(struct platform_device *pdev)
350{
351 struct component_match *match = NULL;
352 struct device *dev = &pdev->dev;
353
354 vc4_match_add_drivers(dev, &match,
355 component_drivers, ARRAY_SIZE(component_drivers));
356
357 return component_master_add_with_match(dev, &vc4_drm_ops, match);
358}
359
360static int vc4_platform_drm_remove(struct platform_device *pdev)
361{
362 component_master_del(&pdev->dev, &vc4_drm_ops);
363
364 return 0;
365}
366
367static const struct of_device_id vc4_of_match[] = {
368 { .compatible = "brcm,bcm2835-vc4", },
369 { .compatible = "brcm,cygnus-vc4", },
370 {},
371};
372MODULE_DEVICE_TABLE(of, vc4_of_match);
373
374static struct platform_driver vc4_platform_driver = {
375 .probe = vc4_platform_drm_probe,
376 .remove = vc4_platform_drm_remove,
377 .driver = {
378 .name = "vc4-drm",
379 .of_match_table = vc4_of_match,
380 },
381};
382
383static int __init vc4_drm_register(void)
384{
385 int ret;
386
387 ret = platform_register_drivers(component_drivers,
388 ARRAY_SIZE(component_drivers));
389 if (ret)
390 return ret;
391
392 return platform_driver_register(&vc4_platform_driver);
393}
394
395static void __exit vc4_drm_unregister(void)
396{
397 platform_unregister_drivers(component_drivers,
398 ARRAY_SIZE(component_drivers));
399 platform_driver_unregister(&vc4_platform_driver);
400}
401
402module_init(vc4_drm_register);
403module_exit(vc4_drm_unregister);
404
405MODULE_ALIAS("platform:vc4-drm");
406MODULE_DESCRIPTION("Broadcom VC4 DRM Driver");
407MODULE_AUTHOR("Eric Anholt <eric@anholt.net>");
408MODULE_LICENSE("GPL v2");