summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/gma500/oaktrail_hdmi.c
blob: 2eb3dc4e9c9b03186c2734a5818aacec70892f47 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
/*
 * Copyright © 2010 Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *
 * Authors:
 *	Li Peng <peng.li@intel.com>
 */

#include <drm/drmP.h>
#include <drm/drm.h>
#include "psb_intel_drv.h"
#include "psb_intel_reg.h"
#include "psb_drv.h"

#define HDMI_READ(reg)		readl(hdmi_dev->regs + (reg))
#define HDMI_WRITE(reg, val)	writel(val, hdmi_dev->regs + (reg))

#define HDMI_HCR	0x1000
#define HCR_ENABLE_HDCP		(1 << 5)
#define HCR_ENABLE_AUDIO	(1 << 2)
#define HCR_ENABLE_PIXEL	(1 << 1)
#define HCR_ENABLE_TMDS		(1 << 0)

#define HDMI_HICR	0x1004
#define HDMI_HSR	0x1008
#define HDMI_HISR	0x100C
#define HDMI_DETECT_HDP		(1 << 0)

#define HDMI_VIDEO_REG	0x3000
#define HDMI_UNIT_EN		(1 << 7)
#define HDMI_MODE_OUTPUT	(1 << 0)
#define HDMI_HBLANK_A	0x3100

#define HDMI_AUDIO_CTRL	0x4000
#define HDMI_ENABLE_AUDIO	(1 << 0)

#define PCH_HTOTAL_B	0x3100
#define PCH_HBLANK_B	0x3104
#define PCH_HSYNC_B	0x3108
#define PCH_VTOTAL_B	0x310C
#define PCH_VBLANK_B	0x3110
#define PCH_VSYNC_B	0x3114
#define PCH_PIPEBSRC	0x311C

#define PCH_PIPEB_DSL	0x3800
#define PCH_PIPEB_SLC	0x3804
#define PCH_PIPEBCONF	0x3808
#define PCH_PIPEBSTAT	0x3824

#define CDVO_DFT	0x5000
#define CDVO_SLEWRATE	0x5004
#define CDVO_STRENGTH	0x5008
#define CDVO_RCOMP	0x500C

#define DPLL_CTRL       0x6000
#define DPLL_PDIV_SHIFT		16
#define DPLL_PDIV_MASK		(0xf << 16)
#define DPLL_PWRDN		(1 << 4)
#define DPLL_RESET		(1 << 3)
#define DPLL_FASTEN		(1 << 2)
#define DPLL_ENSTAT		(1 << 1)
#define DPLL_DITHEN		(1 << 0)

#define DPLL_DIV_CTRL   0x6004
#define DPLL_CLKF_MASK		0xffffffc0
#define DPLL_CLKR_MASK		(0x3f)

#define DPLL_CLK_ENABLE 0x6008
#define DPLL_EN_DISP		(1 << 31)
#define DPLL_SEL_HDMI		(1 << 8)
#define DPLL_EN_HDMI		(1 << 1)
#define DPLL_EN_VGA		(1 << 0)

#define DPLL_ADJUST     0x600C
#define DPLL_STATUS     0x6010
#define DPLL_UPDATE     0x6014
#define DPLL_DFT        0x6020

struct intel_range {
	int	min, max;
};

struct oaktrail_hdmi_limit {
	struct intel_range vco, np, nr, nf;
};

struct oaktrail_hdmi_clock {
	int np;
	int nr;
	int nf;
	int dot;
};

#define VCO_MIN		320000
#define VCO_MAX		1650000
#define	NP_MIN		1
#define	NP_MAX		15
#define	NR_MIN		1
#define	NR_MAX		64
#define NF_MIN		2
#define NF_MAX		4095

static const struct oaktrail_hdmi_limit oaktrail_hdmi_limit = {
	.vco = { .min = VCO_MIN,		.max = VCO_MAX },
	.np  = { .min = NP_MIN,			.max = NP_MAX  },
	.nr  = { .min = NR_MIN,			.max = NR_MAX  },
	.nf  = { .min = NF_MIN,			.max = NF_MAX  },
};

static void oaktrail_hdmi_audio_enable(struct drm_device *dev)
{
	struct drm_psb_private *dev_priv = dev->dev_private;
	struct oaktrail_hdmi_dev *hdmi_dev = dev_priv->hdmi_priv;

	HDMI_WRITE(HDMI_HCR, 0x67);
	HDMI_READ(HDMI_HCR);

	HDMI_WRITE(0x51a8, 0x10);
	HDMI_READ(0x51a8);

	HDMI_WRITE(HDMI_AUDIO_CTRL, 0x1);
	HDMI_READ(HDMI_AUDIO_CTRL);
}

static void oaktrail_hdmi_audio_disable(struct drm_device *dev)
{
	struct drm_psb_private *dev_priv = dev->dev_private;
	struct oaktrail_hdmi_dev *hdmi_dev = dev_priv->hdmi_priv;

	HDMI_WRITE(0x51a8, 0x0);
	HDMI_READ(0x51a8);

	HDMI_WRITE(HDMI_AUDIO_CTRL, 0x0);
	HDMI_READ(HDMI_AUDIO_CTRL);

	HDMI_WRITE(HDMI_HCR, 0x47);
	HDMI_READ(HDMI_HCR);
}

static void oaktrail_hdmi_dpms(struct drm_encoder *encoder, int mode)
{
	static int dpms_mode = -1;

	struct drm_device *dev = encoder->dev;
	struct drm_psb_private *dev_priv = dev->dev_private;
	struct oaktrail_hdmi_dev *hdmi_dev = dev_priv->hdmi_priv;
	u32 temp;

	if (dpms_mode == mode)
		return;

	if (mode != DRM_MODE_DPMS_ON)
		temp = 0x0;
	else
		temp = 0x99;

	dpms_mode = mode;
	HDMI_WRITE(HDMI_VIDEO_REG, temp);
}

static int oaktrail_hdmi_mode_valid(struct drm_connector *connector,
				struct drm_display_mode *mode)
{
	if (mode->clock > 165000)
		return MODE_CLOCK_HIGH;
	if (mode->clock < 20000)
		return MODE_CLOCK_LOW;

	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
		return MODE_NO_DBLESCAN;

	return MODE_OK;
}

static bool oaktrail_hdmi_mode_fixup(struct drm_encoder *encoder,
				 const struct drm_display_mode *mode,
				 struct drm_display_mode *adjusted_mode)
{
	return true;
}

static enum drm_connector_status
oaktrail_hdmi_detect(struct drm_connector *connector, bool force)
{
	enum drm_connector_status status;
	struct drm_device *dev = connector->dev;
	struct drm_psb_private *dev_priv = dev->dev_private;
	struct oaktrail_hdmi_dev *hdmi_dev = dev_priv->hdmi_priv;
	u32 temp;

	temp = HDMI_READ(HDMI_HSR);
	DRM_DEBUG_KMS("HDMI_HSR %x\n", temp);

	if ((temp & HDMI_DETECT_HDP) != 0)
		status = connector_status_connected;
	else
		status = connector_status_disconnected;

	return status;
}

static const unsigned char raw_edid[] = {
	0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x10, 0xac, 0x2f, 0xa0,
	0x53, 0x55, 0x33, 0x30, 0x16, 0x13, 0x01, 0x03, 0x0e, 0x3a, 0x24, 0x78,
	0xea, 0xe9, 0xf5, 0xac, 0x51, 0x30, 0xb4, 0x25, 0x11, 0x50, 0x54, 0xa5,
	0x4b, 0x00, 0x81, 0x80, 0xa9, 0x40, 0x71, 0x4f, 0xb3, 0x00, 0x01, 0x01,
	0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x28, 0x3c, 0x80, 0xa0, 0x70, 0xb0,
	0x23, 0x40, 0x30, 0x20, 0x36, 0x00, 0x46, 0x6c, 0x21, 0x00, 0x00, 0x1a,
	0x00, 0x00, 0x00, 0xff, 0x00, 0x47, 0x4e, 0x37, 0x32, 0x31, 0x39, 0x35,
	0x52, 0x30, 0x33, 0x55, 0x53, 0x0a, 0x00, 0x00, 0x00, 0xfc, 0x00, 0x44,
	0x45, 0x4c, 0x4c, 0x20, 0x32, 0x37, 0x30, 0x39, 0x57, 0x0a, 0x20, 0x20,
	0x00, 0x00, 0x00, 0xfd, 0x00, 0x38, 0x4c, 0x1e, 0x53, 0x11, 0x00, 0x0a,
	0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00, 0x8d
};

static int oaktrail_hdmi_get_modes(struct drm_connector *connector)
{
	struct drm_device *dev = connector->dev;
	struct drm_psb_private *dev_priv = dev->dev_private;
	struct i2c_adapter *i2c_adap;
	struct edid *edid;
	struct drm_display_mode *mode, *t;
	int i = 0, ret = 0;

	i2c_adap = i2c_get_adapter(3);
	if (i2c_adap == NULL) {
		DRM_ERROR("No ddc adapter available!\n");
		edid = (struct edid *)raw_edid;
	} else {
		edid = (struct edid *)raw_edid;
		/* FIXME ? edid = drm_get_edid(connector, i2c_adap); */
	}

	if (edid) {
		drm_mode_connector_update_edid_property(connector, edid);
		ret = drm_add_edid_modes(connector, edid);
		connector->display_info.raw_edid = NULL;
	}

	/*
	 * prune modes that require frame buffer bigger than stolen mem
	 */
	list_for_each_entry_safe(mode, t, &connector->probed_modes, head) {
		if ((mode->hdisplay * mode->vdisplay * 4) >= dev_priv->vram_stolen_size) {
			i++;
			drm_mode_remove(connector, mode);
		}
	}
	return ret - i;
}

static void oaktrail_hdmi_mode_set(struct drm_encoder *encoder,
			       struct drm_display_mode *mode,
			       struct drm_display_mode *adjusted_mode)
{
	struct drm_device *dev = encoder->dev;

	oaktrail_hdmi_audio_enable(dev);
	return;
}

static void oaktrail_hdmi_destroy(struct drm_connector *connector)
{
	return;
}

static const struct drm_encoder_helper_funcs oaktrail_hdmi_helper_funcs = {
	.dpms = oaktrail_hdmi_dpms,
	.mode_fixup = oaktrail_hdmi_mode_fixup,
	.prepare = psb_intel_encoder_prepare,
	.mode_set = oaktrail_hdmi_mode_set,
	.commit = psb_intel_encoder_commit,
};

static const struct drm_connector_helper_funcs
					oaktrail_hdmi_connector_helper_funcs = {
	.get_modes = oaktrail_hdmi_get_modes,
	.mode_valid = oaktrail_hdmi_mode_valid,
	.best_encoder = psb_intel_best_encoder,
};

static const struct drm_connector_funcs oaktrail_hdmi_connector_funcs = {
	.dpms = drm_helper_connector_dpms,
	.detect = oaktrail_hdmi_detect,
	.fill_modes = drm_helper_probe_single_connector_modes,
	.destroy = oaktrail_hdmi_destroy,
};

static void oaktrail_hdmi_enc_destroy(struct drm_encoder *encoder)
{
	drm_encoder_cleanup(encoder);
}

static const struct drm_encoder_funcs oaktrail_hdmi_enc_funcs = {
	.destroy = oaktrail_hdmi_enc_destroy,
};

void oaktrail_hdmi_init(struct drm_device *dev,
					struct psb_intel_mode_device *mode_dev)
{
	struct psb_intel_encoder *psb_intel_encoder;
	struct psb_intel_connector *psb_intel_connector;
	struct drm_connector *connector;
	struct drm_encoder *encoder;

	psb_intel_encoder = kzalloc(sizeof(struct psb_intel_encoder), GFP_KERNEL);
	if (!psb_intel_encoder)
		return;

	psb_intel_connector = kzalloc(sizeof(struct psb_intel_connector), GFP_KERNEL);
	if (!psb_intel_connector)
		goto failed_connector;

	connector = &psb_intel_connector->base;
	encoder = &psb_intel_encoder->base;
	drm_connector_init(dev, connector,
			   &oaktrail_hdmi_connector_funcs,
			   DRM_MODE_CONNECTOR_DVID);

	drm_encoder_init(dev, encoder,
			 &oaktrail_hdmi_enc_funcs,
			 DRM_MODE_ENCODER_TMDS);

	psb_intel_connector_attach_encoder(psb_intel_connector,
					   psb_intel_encoder);

	psb_intel_encoder->type = INTEL_OUTPUT_HDMI;
	drm_encoder_helper_add(encoder, &oaktrail_hdmi_helper_funcs);
	drm_connector_helper_add(connector, &oaktrail_hdmi_connector_helper_funcs);

	connector->display_info.subpixel_order = SubPixelHorizontalRGB;
	connector->interlace_allowed = false;
	connector->doublescan_allowed = false;
	drm_sysfs_connector_add(connector);

	return;

failed_connector:
	kfree(psb_intel_encoder);
}

static DEFINE_PCI_DEVICE_TABLE(hdmi_ids) = {
	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x080d) },
	{ 0 }
};

void oaktrail_hdmi_setup(struct drm_device *dev)
{
	struct drm_psb_private *dev_priv = dev->dev_private;
	struct pci_dev *pdev;
	struct oaktrail_hdmi_dev *hdmi_dev;
	int ret;

	pdev = pci_get_device(PCI_VENDOR_ID_INTEL, 0x080d, NULL);
	if (!pdev)
		return;

	hdmi_dev = kzalloc(sizeof(struct oaktrail_hdmi_dev), GFP_KERNEL);
	if (!hdmi_dev) {
		dev_err(dev->dev, "failed to allocate memory\n");
		goto out;
	}


	ret = pci_enable_device(pdev);
	if (ret) {
		dev_err(dev->dev, "failed to enable hdmi controller\n");
		goto free;
	}

	hdmi_dev->mmio = pci_resource_start(pdev, 0);
	hdmi_dev->mmio_len = pci_resource_len(pdev, 0);
	hdmi_dev->regs = ioremap(hdmi_dev->mmio, hdmi_dev->mmio_len);
	if (!hdmi_dev->regs) {
		dev_err(dev->dev, "failed to map hdmi mmio\n");
		goto free;
	}

	hdmi_dev->dev = pdev;
	pci_set_drvdata(pdev, hdmi_dev);

	/* Initialize i2c controller */
	ret = oaktrail_hdmi_i2c_init(hdmi_dev->dev);
	if (ret)
		dev_err(dev->dev, "HDMI I2C initialization failed\n");

	dev_priv->hdmi_priv = hdmi_dev;
	oaktrail_hdmi_audio_disable(dev);
	return;

free:
	kfree(hdmi_dev);
out:
	return;
}

void oaktrail_hdmi_teardown(struct drm_device *dev)
{
	struct drm_psb_private *dev_priv = dev->dev_private;
	struct oaktrail_hdmi_dev *hdmi_dev = dev_priv->hdmi_priv;
	struct pci_dev *pdev;

	if (hdmi_dev) {
		pdev = hdmi_dev->dev;
		pci_set_drvdata(pdev, NULL);
		oaktrail_hdmi_i2c_exit(pdev);
		iounmap(hdmi_dev->regs);
		kfree(hdmi_dev);
		pci_dev_put(pdev);
	}
}

/* save HDMI register state */
void oaktrail_hdmi_save(struct drm_device *dev)
{
	struct drm_psb_private *dev_priv = dev->dev_private;
	struct oaktrail_hdmi_dev *hdmi_dev = dev_priv->hdmi_priv;
	struct psb_state *regs = &dev_priv->regs.psb;
	struct psb_pipe *pipeb = &dev_priv->regs.pipe[1];
	int i;

	/* dpll */
	hdmi_dev->saveDPLL_CTRL = PSB_RVDC32(DPLL_CTRL);
	hdmi_dev->saveDPLL_DIV_CTRL = PSB_RVDC32(DPLL_DIV_CTRL);
	hdmi_dev->saveDPLL_ADJUST = PSB_RVDC32(DPLL_ADJUST);
	hdmi_dev->saveDPLL_UPDATE = PSB_RVDC32(DPLL_UPDATE);
	hdmi_dev->saveDPLL_CLK_ENABLE = PSB_RVDC32(DPLL_CLK_ENABLE);

	/* pipe B */
	pipeb->conf = PSB_RVDC32(PIPEBCONF);
	pipeb->src = PSB_RVDC32(PIPEBSRC);
	pipeb->htotal = PSB_RVDC32(HTOTAL_B);
	pipeb->hblank = PSB_RVDC32(HBLANK_B);
	pipeb->hsync = PSB_RVDC32(HSYNC_B);
	pipeb->vtotal = PSB_RVDC32(VTOTAL_B);
	pipeb->vblank = PSB_RVDC32(VBLANK_B);
	pipeb->vsync = PSB_RVDC32(VSYNC_B);

	hdmi_dev->savePCH_PIPEBCONF = PSB_RVDC32(PCH_PIPEBCONF);
	hdmi_dev->savePCH_PIPEBSRC = PSB_RVDC32(PCH_PIPEBSRC);
	hdmi_dev->savePCH_HTOTAL_B = PSB_RVDC32(PCH_HTOTAL_B);
	hdmi_dev->savePCH_HBLANK_B = PSB_RVDC32(PCH_HBLANK_B);
	hdmi_dev->savePCH_HSYNC_B  = PSB_RVDC32(PCH_HSYNC_B);
	hdmi_dev->savePCH_VTOTAL_B = PSB_RVDC32(PCH_VTOTAL_B);
	hdmi_dev->savePCH_VBLANK_B = PSB_RVDC32(PCH_VBLANK_B);
	hdmi_dev->savePCH_VSYNC_B  = PSB_RVDC32(PCH_VSYNC_B);

	/* plane */
	pipeb->cntr = PSB_RVDC32(DSPBCNTR);
	pipeb->stride = PSB_RVDC32(DSPBSTRIDE);
	pipeb->addr = PSB_RVDC32(DSPBBASE);
	pipeb->surf = PSB_RVDC32(DSPBSURF);
	pipeb->linoff = PSB_RVDC32(DSPBLINOFF);
	pipeb->tileoff = PSB_RVDC32(DSPBTILEOFF);

	/* cursor B */
	regs->saveDSPBCURSOR_CTRL = PSB_RVDC32(CURBCNTR);
	regs->saveDSPBCURSOR_BASE = PSB_RVDC32(CURBBASE);
	regs->saveDSPBCURSOR_POS = PSB_RVDC32(CURBPOS);

	/* save palette */
	for (i = 0; i < 256; i++)
		pipeb->palette[i] = PSB_RVDC32(PALETTE_B + (i << 2));
}

/* restore HDMI register state */
void oaktrail_hdmi_restore(struct drm_device *dev)
{
	struct drm_psb_private *dev_priv = dev->dev_private;
	struct oaktrail_hdmi_dev *hdmi_dev = dev_priv->hdmi_priv;
	struct psb_state *regs = &dev_priv->regs.psb;
	struct psb_pipe *pipeb = &dev_priv->regs.pipe[1];
	int i;

	/* dpll */
	PSB_WVDC32(hdmi_dev->saveDPLL_CTRL, DPLL_CTRL);
	PSB_WVDC32(hdmi_dev->saveDPLL_DIV_CTRL, DPLL_DIV_CTRL);
	PSB_WVDC32(hdmi_dev->saveDPLL_ADJUST, DPLL_ADJUST);
	PSB_WVDC32(hdmi_dev->saveDPLL_UPDATE, DPLL_UPDATE);
	PSB_WVDC32(hdmi_dev->saveDPLL_CLK_ENABLE, DPLL_CLK_ENABLE);
	DRM_UDELAY(150);

	/* pipe */
	PSB_WVDC32(pipeb->src, PIPEBSRC);
	PSB_WVDC32(pipeb->htotal, HTOTAL_B);
	PSB_WVDC32(pipeb->hblank, HBLANK_B);
	PSB_WVDC32(pipeb->hsync,  HSYNC_B);
	PSB_WVDC32(pipeb->vtotal, VTOTAL_B);
	PSB_WVDC32(pipeb->vblank, VBLANK_B);
	PSB_WVDC32(pipeb->vsync,  VSYNC_B);

	PSB_WVDC32(hdmi_dev->savePCH_PIPEBSRC, PCH_PIPEBSRC);
	PSB_WVDC32(hdmi_dev->savePCH_HTOTAL_B, PCH_HTOTAL_B);
	PSB_WVDC32(hdmi_dev->savePCH_HBLANK_B, PCH_HBLANK_B);
	PSB_WVDC32(hdmi_dev->savePCH_HSYNC_B,  PCH_HSYNC_B);
	PSB_WVDC32(hdmi_dev->savePCH_VTOTAL_B, PCH_VTOTAL_B);
	PSB_WVDC32(hdmi_dev->savePCH_VBLANK_B, PCH_VBLANK_B);
	PSB_WVDC32(hdmi_dev->savePCH_VSYNC_B,  PCH_VSYNC_B);

	PSB_WVDC32(pipeb->conf, PIPEBCONF);
	PSB_WVDC32(hdmi_dev->savePCH_PIPEBCONF, PCH_PIPEBCONF);

	/* plane */
	PSB_WVDC32(pipeb->linoff, DSPBLINOFF);
	PSB_WVDC32(pipeb->stride, DSPBSTRIDE);
	PSB_WVDC32(pipeb->tileoff, DSPBTILEOFF);
	PSB_WVDC32(pipeb->cntr, DSPBCNTR);
	PSB_WVDC32(pipeb->surf, DSPBSURF);

	/* cursor B */
	PSB_WVDC32(regs->saveDSPBCURSOR_CTRL, CURBCNTR);
	PSB_WVDC32(regs->saveDSPBCURSOR_POS, CURBPOS);
	PSB_WVDC32(regs->saveDSPBCURSOR_BASE, CURBBASE);

	/* restore palette */
	for (i = 0; i < 256; i++)
		PSB_WVDC32(pipeb->palette[i], PALETTE_B + (i << 2));
}