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1/*
2 * rcar_du_drv.c -- R-Car Display Unit DRM driver
3 *
4 * Copyright (C) 2013-2015 Renesas Electronics Corporation
5 *
6 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#include <linux/clk.h>
15#include <linux/io.h>
16#include <linux/mm.h>
17#include <linux/module.h>
18#include <linux/of_device.h>
19#include <linux/platform_device.h>
20#include <linux/pm.h>
21#include <linux/slab.h>
22#include <linux/wait.h>
23
24#include <drm/drmP.h>
25#include <drm/drm_crtc_helper.h>
26#include <drm/drm_fb_cma_helper.h>
27#include <drm/drm_gem_cma_helper.h>
28
29#include "rcar_du_crtc.h"
30#include "rcar_du_drv.h"
31#include "rcar_du_kms.h"
32#include "rcar_du_regs.h"
33
34/* -----------------------------------------------------------------------------
35 * Device Information
36 */
37
38static const struct rcar_du_device_info rcar_du_r8a7779_info = {
39 .gen = 2,
40 .features = 0,
41 .num_crtcs = 2,
42 .routes = {
43 /* R8A7779 has two RGB outputs and one (currently unsupported)
44 * TCON output.
45 */
46 [RCAR_DU_OUTPUT_DPAD0] = {
47 .possible_crtcs = BIT(0),
48 .encoder_type = DRM_MODE_ENCODER_NONE,
49 .port = 0,
50 },
51 [RCAR_DU_OUTPUT_DPAD1] = {
52 .possible_crtcs = BIT(1) | BIT(0),
53 .encoder_type = DRM_MODE_ENCODER_NONE,
54 .port = 1,
55 },
56 },
57 .num_lvds = 0,
58};
59
60static const struct rcar_du_device_info rcar_du_r8a7790_info = {
61 .gen = 2,
62 .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
63 | RCAR_DU_FEATURE_EXT_CTRL_REGS,
64 .quirks = RCAR_DU_QUIRK_ALIGN_128B | RCAR_DU_QUIRK_LVDS_LANES,
65 .num_crtcs = 3,
66 .routes = {
67 /* R8A7790 has one RGB output, two LVDS outputs and one
68 * (currently unsupported) TCON output.
69 */
70 [RCAR_DU_OUTPUT_DPAD0] = {
71 .possible_crtcs = BIT(2) | BIT(1) | BIT(0),
72 .encoder_type = DRM_MODE_ENCODER_NONE,
73 .port = 0,
74 },
75 [RCAR_DU_OUTPUT_LVDS0] = {
76 .possible_crtcs = BIT(0),
77 .encoder_type = DRM_MODE_ENCODER_LVDS,
78 .port = 1,
79 },
80 [RCAR_DU_OUTPUT_LVDS1] = {
81 .possible_crtcs = BIT(2) | BIT(1),
82 .encoder_type = DRM_MODE_ENCODER_LVDS,
83 .port = 2,
84 },
85 },
86 .num_lvds = 2,
87};
88
89/* M2-W (r8a7791) and M2-N (r8a7793) are identical */
90static const struct rcar_du_device_info rcar_du_r8a7791_info = {
91 .gen = 2,
92 .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
93 | RCAR_DU_FEATURE_EXT_CTRL_REGS,
94 .num_crtcs = 2,
95 .routes = {
96 /* R8A779[13] has one RGB output, one LVDS output and one
97 * (currently unsupported) TCON output.
98 */
99 [RCAR_DU_OUTPUT_DPAD0] = {
100 .possible_crtcs = BIT(1) | BIT(0),
101 .encoder_type = DRM_MODE_ENCODER_NONE,
102 .port = 0,
103 },
104 [RCAR_DU_OUTPUT_LVDS0] = {
105 .possible_crtcs = BIT(0),
106 .encoder_type = DRM_MODE_ENCODER_LVDS,
107 .port = 1,
108 },
109 },
110 .num_lvds = 1,
111};
112
113static const struct rcar_du_device_info rcar_du_r8a7794_info = {
114 .gen = 2,
115 .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
116 | RCAR_DU_FEATURE_EXT_CTRL_REGS,
117 .num_crtcs = 2,
118 .routes = {
119 /* R8A7794 has two RGB outputs and one (currently unsupported)
120 * TCON output.
121 */
122 [RCAR_DU_OUTPUT_DPAD0] = {
123 .possible_crtcs = BIT(0),
124 .encoder_type = DRM_MODE_ENCODER_NONE,
125 .port = 0,
126 },
127 [RCAR_DU_OUTPUT_DPAD1] = {
128 .possible_crtcs = BIT(1),
129 .encoder_type = DRM_MODE_ENCODER_NONE,
130 .port = 1,
131 },
132 },
133 .num_lvds = 0,
134};
135
136static const struct rcar_du_device_info rcar_du_r8a7795_info = {
137 .gen = 3,
138 .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
139 | RCAR_DU_FEATURE_EXT_CTRL_REGS
140 | RCAR_DU_FEATURE_VSP1_SOURCE,
141 .num_crtcs = 4,
142 .routes = {
143 /* R8A7795 has one RGB output, one LVDS output and two
144 * (currently unsupported) HDMI outputs.
145 */
146 [RCAR_DU_OUTPUT_DPAD0] = {
147 .possible_crtcs = BIT(3),
148 .encoder_type = DRM_MODE_ENCODER_NONE,
149 .port = 0,
150 },
151 [RCAR_DU_OUTPUT_LVDS0] = {
152 .possible_crtcs = BIT(0),
153 .encoder_type = DRM_MODE_ENCODER_LVDS,
154 .port = 3,
155 },
156 },
157 .num_lvds = 1,
158};
159
160static const struct of_device_id rcar_du_of_table[] = {
161 { .compatible = "renesas,du-r8a7779", .data = &rcar_du_r8a7779_info },
162 { .compatible = "renesas,du-r8a7790", .data = &rcar_du_r8a7790_info },
163 { .compatible = "renesas,du-r8a7791", .data = &rcar_du_r8a7791_info },
164 { .compatible = "renesas,du-r8a7793", .data = &rcar_du_r8a7791_info },
165 { .compatible = "renesas,du-r8a7794", .data = &rcar_du_r8a7794_info },
166 { .compatible = "renesas,du-r8a7795", .data = &rcar_du_r8a7795_info },
167 { }
168};
169
170MODULE_DEVICE_TABLE(of, rcar_du_of_table);
171
172/* -----------------------------------------------------------------------------
173 * DRM operations
174 */
175
176static void rcar_du_lastclose(struct drm_device *dev)
177{
178 struct rcar_du_device *rcdu = dev->dev_private;
179
180 drm_fbdev_cma_restore_mode(rcdu->fbdev);
181}
182
183static int rcar_du_enable_vblank(struct drm_device *dev, unsigned int pipe)
184{
185 struct rcar_du_device *rcdu = dev->dev_private;
186
187 rcar_du_crtc_enable_vblank(&rcdu->crtcs[pipe], true);
188
189 return 0;
190}
191
192static void rcar_du_disable_vblank(struct drm_device *dev, unsigned int pipe)
193{
194 struct rcar_du_device *rcdu = dev->dev_private;
195
196 rcar_du_crtc_enable_vblank(&rcdu->crtcs[pipe], false);
197}
198
199static const struct file_operations rcar_du_fops = {
200 .owner = THIS_MODULE,
201 .open = drm_open,
202 .release = drm_release,
203 .unlocked_ioctl = drm_ioctl,
204#ifdef CONFIG_COMPAT
205 .compat_ioctl = drm_compat_ioctl,
206#endif
207 .poll = drm_poll,
208 .read = drm_read,
209 .llseek = no_llseek,
210 .mmap = drm_gem_cma_mmap,
211};
212
213static struct drm_driver rcar_du_driver = {
214 .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME
215 | DRIVER_ATOMIC,
216 .lastclose = rcar_du_lastclose,
217 .get_vblank_counter = drm_vblank_no_hw_counter,
218 .enable_vblank = rcar_du_enable_vblank,
219 .disable_vblank = rcar_du_disable_vblank,
220 .gem_free_object = drm_gem_cma_free_object,
221 .gem_vm_ops = &drm_gem_cma_vm_ops,
222 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
223 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
224 .gem_prime_import = drm_gem_prime_import,
225 .gem_prime_export = drm_gem_prime_export,
226 .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
227 .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
228 .gem_prime_vmap = drm_gem_cma_prime_vmap,
229 .gem_prime_vunmap = drm_gem_cma_prime_vunmap,
230 .gem_prime_mmap = drm_gem_cma_prime_mmap,
231 .dumb_create = rcar_du_dumb_create,
232 .dumb_map_offset = drm_gem_cma_dumb_map_offset,
233 .dumb_destroy = drm_gem_dumb_destroy,
234 .fops = &rcar_du_fops,
235 .name = "rcar-du",
236 .desc = "Renesas R-Car Display Unit",
237 .date = "20130110",
238 .major = 1,
239 .minor = 0,
240};
241
242/* -----------------------------------------------------------------------------
243 * Power management
244 */
245
246#ifdef CONFIG_PM_SLEEP
247static int rcar_du_pm_suspend(struct device *dev)
248{
249 struct rcar_du_device *rcdu = dev_get_drvdata(dev);
250
251 drm_kms_helper_poll_disable(rcdu->ddev);
252 /* TODO Suspend the CRTC */
253
254 return 0;
255}
256
257static int rcar_du_pm_resume(struct device *dev)
258{
259 struct rcar_du_device *rcdu = dev_get_drvdata(dev);
260
261 /* TODO Resume the CRTC */
262
263 drm_kms_helper_poll_enable(rcdu->ddev);
264 return 0;
265}
266#endif
267
268static const struct dev_pm_ops rcar_du_pm_ops = {
269 SET_SYSTEM_SLEEP_PM_OPS(rcar_du_pm_suspend, rcar_du_pm_resume)
270};
271
272/* -----------------------------------------------------------------------------
273 * Platform driver
274 */
275
276static int rcar_du_remove(struct platform_device *pdev)
277{
278 struct rcar_du_device *rcdu = platform_get_drvdata(pdev);
279 struct drm_device *ddev = rcdu->ddev;
280
281 mutex_lock(&ddev->mode_config.mutex);
282 drm_connector_unplug_all(ddev);
283 mutex_unlock(&ddev->mode_config.mutex);
284
285 drm_dev_unregister(ddev);
286
287 if (rcdu->fbdev)
288 drm_fbdev_cma_fini(rcdu->fbdev);
289
290 drm_kms_helper_poll_fini(ddev);
291 drm_mode_config_cleanup(ddev);
292 drm_vblank_cleanup(ddev);
293
294 drm_dev_unref(ddev);
295
296 return 0;
297}
298
299static int rcar_du_probe(struct platform_device *pdev)
300{
301 struct device_node *np = pdev->dev.of_node;
302 struct rcar_du_device *rcdu;
303 struct drm_connector *connector;
304 struct drm_device *ddev;
305 struct resource *mem;
306 int ret;
307
308 if (np == NULL) {
309 dev_err(&pdev->dev, "no device tree node\n");
310 return -ENODEV;
311 }
312
313 /* Allocate and initialize the DRM and R-Car device structures. */
314 rcdu = devm_kzalloc(&pdev->dev, sizeof(*rcdu), GFP_KERNEL);
315 if (rcdu == NULL)
316 return -ENOMEM;
317
318 init_waitqueue_head(&rcdu->commit.wait);
319
320 rcdu->dev = &pdev->dev;
321 rcdu->info = of_match_device(rcar_du_of_table, rcdu->dev)->data;
322
323 ddev = drm_dev_alloc(&rcar_du_driver, &pdev->dev);
324 if (!ddev)
325 return -ENOMEM;
326
327 drm_dev_set_unique(ddev, dev_name(&pdev->dev));
328
329 rcdu->ddev = ddev;
330 ddev->dev_private = rcdu;
331
332 platform_set_drvdata(pdev, rcdu);
333
334 /* I/O resources */
335 mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
336 rcdu->mmio = devm_ioremap_resource(&pdev->dev, mem);
337 if (IS_ERR(rcdu->mmio)) {
338 ret = PTR_ERR(rcdu->mmio);
339 goto error;
340 }
341
342 /* Initialize vertical blanking interrupts handling. Start with vblank
343 * disabled for all CRTCs.
344 */
345 ret = drm_vblank_init(ddev, (1 << rcdu->info->num_crtcs) - 1);
346 if (ret < 0) {
347 dev_err(&pdev->dev, "failed to initialize vblank\n");
348 goto error;
349 }
350
351 /* DRM/KMS objects */
352 ret = rcar_du_modeset_init(rcdu);
353 if (ret < 0) {
354 dev_err(&pdev->dev, "failed to initialize DRM/KMS (%d)\n", ret);
355 goto error;
356 }
357
358 ddev->irq_enabled = 1;
359
360 /* Register the DRM device with the core and the connectors with
361 * sysfs.
362 */
363 ret = drm_dev_register(ddev, 0);
364 if (ret)
365 goto error;
366
367 mutex_lock(&ddev->mode_config.mutex);
368 drm_for_each_connector(connector, ddev) {
369 ret = drm_connector_register(connector);
370 if (ret < 0)
371 break;
372 }
373 mutex_unlock(&ddev->mode_config.mutex);
374
375 if (ret < 0)
376 goto error;
377
378 DRM_INFO("Device %s probed\n", dev_name(&pdev->dev));
379
380 return 0;
381
382error:
383 rcar_du_remove(pdev);
384
385 return ret;
386}
387
388static struct platform_driver rcar_du_platform_driver = {
389 .probe = rcar_du_probe,
390 .remove = rcar_du_remove,
391 .driver = {
392 .name = "rcar-du",
393 .pm = &rcar_du_pm_ops,
394 .of_match_table = rcar_du_of_table,
395 },
396};
397
398module_platform_driver(rcar_du_platform_driver);
399
400MODULE_AUTHOR("Laurent Pinchart <laurent.pinchart@ideasonboard.com>");
401MODULE_DESCRIPTION("Renesas R-Car Display Unit DRM Driver");
402MODULE_LICENSE("GPL");
1/*
2 * rcar_du_drv.c -- R-Car Display Unit DRM driver
3 *
4 * Copyright (C) 2013-2015 Renesas Electronics Corporation
5 *
6 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#include <linux/clk.h>
15#include <linux/io.h>
16#include <linux/mm.h>
17#include <linux/module.h>
18#include <linux/of_device.h>
19#include <linux/platform_device.h>
20#include <linux/pm.h>
21#include <linux/slab.h>
22#include <linux/wait.h>
23
24#include <drm/drmP.h>
25#include <drm/drm_atomic_helper.h>
26#include <drm/drm_crtc_helper.h>
27#include <drm/drm_fb_cma_helper.h>
28#include <drm/drm_gem_cma_helper.h>
29
30#include "rcar_du_drv.h"
31#include "rcar_du_kms.h"
32#include "rcar_du_of.h"
33#include "rcar_du_regs.h"
34
35/* -----------------------------------------------------------------------------
36 * Device Information
37 */
38
39static const struct rcar_du_device_info rzg1_du_r8a7743_info = {
40 .gen = 2,
41 .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
42 | RCAR_DU_FEATURE_EXT_CTRL_REGS,
43 .num_crtcs = 2,
44 .routes = {
45 /*
46 * R8A7743 has one RGB output and one LVDS output
47 */
48 [RCAR_DU_OUTPUT_DPAD0] = {
49 .possible_crtcs = BIT(1) | BIT(0),
50 .port = 0,
51 },
52 [RCAR_DU_OUTPUT_LVDS0] = {
53 .possible_crtcs = BIT(0),
54 .port = 1,
55 },
56 },
57 .num_lvds = 1,
58};
59
60static const struct rcar_du_device_info rzg1_du_r8a7745_info = {
61 .gen = 2,
62 .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
63 | RCAR_DU_FEATURE_EXT_CTRL_REGS,
64 .num_crtcs = 2,
65 .routes = {
66 /*
67 * R8A7745 has two RGB outputs
68 */
69 [RCAR_DU_OUTPUT_DPAD0] = {
70 .possible_crtcs = BIT(0),
71 .port = 0,
72 },
73 [RCAR_DU_OUTPUT_DPAD1] = {
74 .possible_crtcs = BIT(1),
75 .port = 1,
76 },
77 },
78};
79
80static const struct rcar_du_device_info rcar_du_r8a7779_info = {
81 .gen = 2,
82 .features = 0,
83 .num_crtcs = 2,
84 .routes = {
85 /*
86 * R8A7779 has two RGB outputs and one (currently unsupported)
87 * TCON output.
88 */
89 [RCAR_DU_OUTPUT_DPAD0] = {
90 .possible_crtcs = BIT(0),
91 .port = 0,
92 },
93 [RCAR_DU_OUTPUT_DPAD1] = {
94 .possible_crtcs = BIT(1) | BIT(0),
95 .port = 1,
96 },
97 },
98};
99
100static const struct rcar_du_device_info rcar_du_r8a7790_info = {
101 .gen = 2,
102 .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
103 | RCAR_DU_FEATURE_EXT_CTRL_REGS,
104 .quirks = RCAR_DU_QUIRK_ALIGN_128B,
105 .num_crtcs = 3,
106 .routes = {
107 /*
108 * R8A7790 has one RGB output, two LVDS outputs and one
109 * (currently unsupported) TCON output.
110 */
111 [RCAR_DU_OUTPUT_DPAD0] = {
112 .possible_crtcs = BIT(2) | BIT(1) | BIT(0),
113 .port = 0,
114 },
115 [RCAR_DU_OUTPUT_LVDS0] = {
116 .possible_crtcs = BIT(0),
117 .port = 1,
118 },
119 [RCAR_DU_OUTPUT_LVDS1] = {
120 .possible_crtcs = BIT(2) | BIT(1),
121 .port = 2,
122 },
123 },
124 .num_lvds = 2,
125};
126
127/* M2-W (r8a7791) and M2-N (r8a7793) are identical */
128static const struct rcar_du_device_info rcar_du_r8a7791_info = {
129 .gen = 2,
130 .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
131 | RCAR_DU_FEATURE_EXT_CTRL_REGS,
132 .num_crtcs = 2,
133 .routes = {
134 /*
135 * R8A779[13] has one RGB output, one LVDS output and one
136 * (currently unsupported) TCON output.
137 */
138 [RCAR_DU_OUTPUT_DPAD0] = {
139 .possible_crtcs = BIT(1) | BIT(0),
140 .port = 0,
141 },
142 [RCAR_DU_OUTPUT_LVDS0] = {
143 .possible_crtcs = BIT(0),
144 .port = 1,
145 },
146 },
147 .num_lvds = 1,
148};
149
150static const struct rcar_du_device_info rcar_du_r8a7792_info = {
151 .gen = 2,
152 .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
153 | RCAR_DU_FEATURE_EXT_CTRL_REGS,
154 .num_crtcs = 2,
155 .routes = {
156 /* R8A7792 has two RGB outputs. */
157 [RCAR_DU_OUTPUT_DPAD0] = {
158 .possible_crtcs = BIT(0),
159 .port = 0,
160 },
161 [RCAR_DU_OUTPUT_DPAD1] = {
162 .possible_crtcs = BIT(1),
163 .port = 1,
164 },
165 },
166};
167
168static const struct rcar_du_device_info rcar_du_r8a7794_info = {
169 .gen = 2,
170 .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
171 | RCAR_DU_FEATURE_EXT_CTRL_REGS,
172 .num_crtcs = 2,
173 .routes = {
174 /*
175 * R8A7794 has two RGB outputs and one (currently unsupported)
176 * TCON output.
177 */
178 [RCAR_DU_OUTPUT_DPAD0] = {
179 .possible_crtcs = BIT(0),
180 .port = 0,
181 },
182 [RCAR_DU_OUTPUT_DPAD1] = {
183 .possible_crtcs = BIT(1),
184 .port = 1,
185 },
186 },
187};
188
189static const struct rcar_du_device_info rcar_du_r8a7795_info = {
190 .gen = 3,
191 .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
192 | RCAR_DU_FEATURE_EXT_CTRL_REGS
193 | RCAR_DU_FEATURE_VSP1_SOURCE,
194 .num_crtcs = 4,
195 .routes = {
196 /*
197 * R8A7795 has one RGB output, two HDMI outputs and one
198 * LVDS output.
199 */
200 [RCAR_DU_OUTPUT_DPAD0] = {
201 .possible_crtcs = BIT(3),
202 .port = 0,
203 },
204 [RCAR_DU_OUTPUT_HDMI0] = {
205 .possible_crtcs = BIT(1),
206 .port = 1,
207 },
208 [RCAR_DU_OUTPUT_HDMI1] = {
209 .possible_crtcs = BIT(2),
210 .port = 2,
211 },
212 [RCAR_DU_OUTPUT_LVDS0] = {
213 .possible_crtcs = BIT(0),
214 .port = 3,
215 },
216 },
217 .num_lvds = 1,
218 .dpll_ch = BIT(1) | BIT(2),
219};
220
221static const struct rcar_du_device_info rcar_du_r8a7796_info = {
222 .gen = 3,
223 .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
224 | RCAR_DU_FEATURE_EXT_CTRL_REGS
225 | RCAR_DU_FEATURE_VSP1_SOURCE,
226 .num_crtcs = 3,
227 .routes = {
228 /*
229 * R8A7796 has one RGB output, one LVDS output and one HDMI
230 * output.
231 */
232 [RCAR_DU_OUTPUT_DPAD0] = {
233 .possible_crtcs = BIT(2),
234 .port = 0,
235 },
236 [RCAR_DU_OUTPUT_HDMI0] = {
237 .possible_crtcs = BIT(1),
238 .port = 1,
239 },
240 [RCAR_DU_OUTPUT_LVDS0] = {
241 .possible_crtcs = BIT(0),
242 .port = 2,
243 },
244 },
245 .num_lvds = 1,
246 .dpll_ch = BIT(1),
247};
248
249static const struct rcar_du_device_info rcar_du_r8a77970_info = {
250 .gen = 3,
251 .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
252 | RCAR_DU_FEATURE_EXT_CTRL_REGS
253 | RCAR_DU_FEATURE_VSP1_SOURCE,
254 .num_crtcs = 1,
255 .routes = {
256 /* R8A77970 has one RGB output and one LVDS output. */
257 [RCAR_DU_OUTPUT_DPAD0] = {
258 .possible_crtcs = BIT(0),
259 .port = 0,
260 },
261 [RCAR_DU_OUTPUT_LVDS0] = {
262 .possible_crtcs = BIT(0),
263 .port = 1,
264 },
265 },
266 .num_lvds = 1,
267};
268
269static const struct of_device_id rcar_du_of_table[] = {
270 { .compatible = "renesas,du-r8a7743", .data = &rzg1_du_r8a7743_info },
271 { .compatible = "renesas,du-r8a7745", .data = &rzg1_du_r8a7745_info },
272 { .compatible = "renesas,du-r8a7779", .data = &rcar_du_r8a7779_info },
273 { .compatible = "renesas,du-r8a7790", .data = &rcar_du_r8a7790_info },
274 { .compatible = "renesas,du-r8a7791", .data = &rcar_du_r8a7791_info },
275 { .compatible = "renesas,du-r8a7792", .data = &rcar_du_r8a7792_info },
276 { .compatible = "renesas,du-r8a7793", .data = &rcar_du_r8a7791_info },
277 { .compatible = "renesas,du-r8a7794", .data = &rcar_du_r8a7794_info },
278 { .compatible = "renesas,du-r8a7795", .data = &rcar_du_r8a7795_info },
279 { .compatible = "renesas,du-r8a7796", .data = &rcar_du_r8a7796_info },
280 { .compatible = "renesas,du-r8a77970", .data = &rcar_du_r8a77970_info },
281 { }
282};
283
284MODULE_DEVICE_TABLE(of, rcar_du_of_table);
285
286/* -----------------------------------------------------------------------------
287 * DRM operations
288 */
289
290static void rcar_du_lastclose(struct drm_device *dev)
291{
292 struct rcar_du_device *rcdu = dev->dev_private;
293
294 drm_fbdev_cma_restore_mode(rcdu->fbdev);
295}
296
297DEFINE_DRM_GEM_CMA_FOPS(rcar_du_fops);
298
299static struct drm_driver rcar_du_driver = {
300 .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME
301 | DRIVER_ATOMIC,
302 .lastclose = rcar_du_lastclose,
303 .gem_free_object_unlocked = drm_gem_cma_free_object,
304 .gem_vm_ops = &drm_gem_cma_vm_ops,
305 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
306 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
307 .gem_prime_import = drm_gem_prime_import,
308 .gem_prime_export = drm_gem_prime_export,
309 .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
310 .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
311 .gem_prime_vmap = drm_gem_cma_prime_vmap,
312 .gem_prime_vunmap = drm_gem_cma_prime_vunmap,
313 .gem_prime_mmap = drm_gem_cma_prime_mmap,
314 .dumb_create = rcar_du_dumb_create,
315 .fops = &rcar_du_fops,
316 .name = "rcar-du",
317 .desc = "Renesas R-Car Display Unit",
318 .date = "20130110",
319 .major = 1,
320 .minor = 0,
321};
322
323/* -----------------------------------------------------------------------------
324 * Power management
325 */
326
327#ifdef CONFIG_PM_SLEEP
328static int rcar_du_pm_suspend(struct device *dev)
329{
330 struct rcar_du_device *rcdu = dev_get_drvdata(dev);
331 struct drm_atomic_state *state;
332
333 drm_kms_helper_poll_disable(rcdu->ddev);
334 drm_fbdev_cma_set_suspend_unlocked(rcdu->fbdev, true);
335
336 state = drm_atomic_helper_suspend(rcdu->ddev);
337 if (IS_ERR(state)) {
338 drm_fbdev_cma_set_suspend_unlocked(rcdu->fbdev, false);
339 drm_kms_helper_poll_enable(rcdu->ddev);
340 return PTR_ERR(state);
341 }
342
343 rcdu->suspend_state = state;
344
345 return 0;
346}
347
348static int rcar_du_pm_resume(struct device *dev)
349{
350 struct rcar_du_device *rcdu = dev_get_drvdata(dev);
351
352 drm_atomic_helper_resume(rcdu->ddev, rcdu->suspend_state);
353 drm_fbdev_cma_set_suspend_unlocked(rcdu->fbdev, false);
354 drm_kms_helper_poll_enable(rcdu->ddev);
355
356 return 0;
357}
358#endif
359
360static const struct dev_pm_ops rcar_du_pm_ops = {
361 SET_SYSTEM_SLEEP_PM_OPS(rcar_du_pm_suspend, rcar_du_pm_resume)
362};
363
364/* -----------------------------------------------------------------------------
365 * Platform driver
366 */
367
368static int rcar_du_remove(struct platform_device *pdev)
369{
370 struct rcar_du_device *rcdu = platform_get_drvdata(pdev);
371 struct drm_device *ddev = rcdu->ddev;
372
373 drm_dev_unregister(ddev);
374
375 if (rcdu->fbdev)
376 drm_fbdev_cma_fini(rcdu->fbdev);
377
378 drm_kms_helper_poll_fini(ddev);
379 drm_mode_config_cleanup(ddev);
380
381 drm_dev_unref(ddev);
382
383 return 0;
384}
385
386static int rcar_du_probe(struct platform_device *pdev)
387{
388 struct rcar_du_device *rcdu;
389 struct drm_device *ddev;
390 struct resource *mem;
391 int ret;
392
393 /* Allocate and initialize the R-Car device structure. */
394 rcdu = devm_kzalloc(&pdev->dev, sizeof(*rcdu), GFP_KERNEL);
395 if (rcdu == NULL)
396 return -ENOMEM;
397
398 rcdu->dev = &pdev->dev;
399 rcdu->info = of_device_get_match_data(rcdu->dev);
400
401 platform_set_drvdata(pdev, rcdu);
402
403 /* I/O resources */
404 mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
405 rcdu->mmio = devm_ioremap_resource(&pdev->dev, mem);
406 if (IS_ERR(rcdu->mmio))
407 return PTR_ERR(rcdu->mmio);
408
409 /* DRM/KMS objects */
410 ddev = drm_dev_alloc(&rcar_du_driver, &pdev->dev);
411 if (IS_ERR(ddev))
412 return PTR_ERR(ddev);
413
414 rcdu->ddev = ddev;
415 ddev->dev_private = rcdu;
416
417 ret = rcar_du_modeset_init(rcdu);
418 if (ret < 0) {
419 if (ret != -EPROBE_DEFER)
420 dev_err(&pdev->dev,
421 "failed to initialize DRM/KMS (%d)\n", ret);
422 goto error;
423 }
424
425 ddev->irq_enabled = 1;
426
427 /*
428 * Register the DRM device with the core and the connectors with
429 * sysfs.
430 */
431 ret = drm_dev_register(ddev, 0);
432 if (ret)
433 goto error;
434
435 DRM_INFO("Device %s probed\n", dev_name(&pdev->dev));
436
437 return 0;
438
439error:
440 rcar_du_remove(pdev);
441
442 return ret;
443}
444
445static struct platform_driver rcar_du_platform_driver = {
446 .probe = rcar_du_probe,
447 .remove = rcar_du_remove,
448 .driver = {
449 .name = "rcar-du",
450 .pm = &rcar_du_pm_ops,
451 .of_match_table = rcar_du_of_table,
452 },
453};
454
455static int __init rcar_du_init(void)
456{
457 rcar_du_of_init(rcar_du_of_table);
458
459 return platform_driver_register(&rcar_du_platform_driver);
460}
461module_init(rcar_du_init);
462
463static void __exit rcar_du_exit(void)
464{
465 platform_driver_unregister(&rcar_du_platform_driver);
466}
467module_exit(rcar_du_exit);
468
469MODULE_AUTHOR("Laurent Pinchart <laurent.pinchart@ideasonboard.com>");
470MODULE_DESCRIPTION("Renesas R-Car Display Unit DRM Driver");
471MODULE_LICENSE("GPL");