xref: /linux/drivers/gpu/drm/radeon/evergreen_hdmi.c (revision a1ff5a7d78a036d6c2178ee5acd6ba4946243800)
1 /*
2  * Copyright 2008 Advanced Micro Devices, Inc.
3  * Copyright 2008 Red Hat Inc.
4  * Copyright 2009 Christian König.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22  * OTHER DEALINGS IN THE SOFTWARE.
23  *
24  * Authors: Christian König
25  *          Rafał Miłecki
26  */
27 #include <linux/hdmi.h>
28 
29 #include <drm/drm_edid.h>
30 #include <drm/radeon_drm.h>
31 #include "evergreen_hdmi.h"
32 #include "radeon.h"
33 #include "radeon_asic.h"
34 #include "radeon_audio.h"
35 #include "evergreend.h"
36 #include "atom.h"
37 
38 /* enable the audio stream */
dce4_audio_enable(struct radeon_device * rdev,struct r600_audio_pin * pin,u8 enable_mask)39 void dce4_audio_enable(struct radeon_device *rdev,
40 			      struct r600_audio_pin *pin,
41 			      u8 enable_mask)
42 {
43 	u32 tmp = RREG32(AZ_HOT_PLUG_CONTROL);
44 
45 	if (!pin)
46 		return;
47 
48 	if (enable_mask) {
49 		tmp |= AUDIO_ENABLED;
50 		if (enable_mask & 1)
51 			tmp |= PIN0_AUDIO_ENABLED;
52 		if (enable_mask & 2)
53 			tmp |= PIN1_AUDIO_ENABLED;
54 		if (enable_mask & 4)
55 			tmp |= PIN2_AUDIO_ENABLED;
56 		if (enable_mask & 8)
57 			tmp |= PIN3_AUDIO_ENABLED;
58 	} else {
59 		tmp &= ~(AUDIO_ENABLED |
60 			 PIN0_AUDIO_ENABLED |
61 			 PIN1_AUDIO_ENABLED |
62 			 PIN2_AUDIO_ENABLED |
63 			 PIN3_AUDIO_ENABLED);
64 	}
65 
66 	WREG32(AZ_HOT_PLUG_CONTROL, tmp);
67 }
68 
evergreen_hdmi_update_acr(struct drm_encoder * encoder,long offset,const struct radeon_hdmi_acr * acr)69 void evergreen_hdmi_update_acr(struct drm_encoder *encoder, long offset,
70 	const struct radeon_hdmi_acr *acr)
71 {
72 	struct drm_device *dev = encoder->dev;
73 	struct radeon_device *rdev = dev->dev_private;
74 	int bpc = 8;
75 
76 	if (encoder->crtc) {
77 		struct radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc);
78 		bpc = radeon_crtc->bpc;
79 	}
80 
81 	if (bpc > 8)
82 		WREG32(HDMI_ACR_PACKET_CONTROL + offset,
83 			HDMI_ACR_AUTO_SEND);	/* allow hw to sent ACR packets when required */
84 	else
85 		WREG32(HDMI_ACR_PACKET_CONTROL + offset,
86 			HDMI_ACR_SOURCE |		/* select SW CTS value */
87 			HDMI_ACR_AUTO_SEND);	/* allow hw to sent ACR packets when required */
88 
89 	WREG32(HDMI_ACR_32_0 + offset, HDMI_ACR_CTS_32(acr->cts_32khz));
90 	WREG32(HDMI_ACR_32_1 + offset, acr->n_32khz);
91 
92 	WREG32(HDMI_ACR_44_0 + offset, HDMI_ACR_CTS_44(acr->cts_44_1khz));
93 	WREG32(HDMI_ACR_44_1 + offset, acr->n_44_1khz);
94 
95 	WREG32(HDMI_ACR_48_0 + offset, HDMI_ACR_CTS_48(acr->cts_48khz));
96 	WREG32(HDMI_ACR_48_1 + offset, acr->n_48khz);
97 }
98 
dce4_afmt_write_latency_fields(struct drm_encoder * encoder,struct drm_connector * connector,struct drm_display_mode * mode)99 void dce4_afmt_write_latency_fields(struct drm_encoder *encoder,
100 		struct drm_connector *connector, struct drm_display_mode *mode)
101 {
102 	struct radeon_device *rdev = encoder->dev->dev_private;
103 	u32 tmp = 0;
104 
105 	if (mode->flags & DRM_MODE_FLAG_INTERLACE) {
106 		if (connector->latency_present[1])
107 			tmp = VIDEO_LIPSYNC(connector->video_latency[1]) |
108 				AUDIO_LIPSYNC(connector->audio_latency[1]);
109 		else
110 			tmp = VIDEO_LIPSYNC(255) | AUDIO_LIPSYNC(255);
111 	} else {
112 		if (connector->latency_present[0])
113 			tmp = VIDEO_LIPSYNC(connector->video_latency[0]) |
114 				AUDIO_LIPSYNC(connector->audio_latency[0]);
115 		else
116 			tmp = VIDEO_LIPSYNC(255) | AUDIO_LIPSYNC(255);
117 	}
118 	WREG32_ENDPOINT(0, AZ_F0_CODEC_PIN0_CONTROL_RESPONSE_LIPSYNC, tmp);
119 }
120 
dce4_afmt_hdmi_write_speaker_allocation(struct drm_encoder * encoder,u8 * sadb,int sad_count)121 void dce4_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder,
122 	u8 *sadb, int sad_count)
123 {
124 	struct radeon_device *rdev = encoder->dev->dev_private;
125 	u32 tmp;
126 
127 	/* program the speaker allocation */
128 	tmp = RREG32_ENDPOINT(0, AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER);
129 	tmp &= ~(DP_CONNECTION | SPEAKER_ALLOCATION_MASK);
130 	/* set HDMI mode */
131 	tmp |= HDMI_CONNECTION;
132 	if (sad_count)
133 		tmp |= SPEAKER_ALLOCATION(sadb[0]);
134 	else
135 		tmp |= SPEAKER_ALLOCATION(5); /* stereo */
136 	WREG32_ENDPOINT(0, AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER, tmp);
137 }
138 
dce4_afmt_dp_write_speaker_allocation(struct drm_encoder * encoder,u8 * sadb,int sad_count)139 void dce4_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder,
140 	u8 *sadb, int sad_count)
141 {
142 	struct radeon_device *rdev = encoder->dev->dev_private;
143 	u32 tmp;
144 
145 	/* program the speaker allocation */
146 	tmp = RREG32_ENDPOINT(0, AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER);
147 	tmp &= ~(HDMI_CONNECTION | SPEAKER_ALLOCATION_MASK);
148 	/* set DP mode */
149 	tmp |= DP_CONNECTION;
150 	if (sad_count)
151 		tmp |= SPEAKER_ALLOCATION(sadb[0]);
152 	else
153 		tmp |= SPEAKER_ALLOCATION(5); /* stereo */
154 	WREG32_ENDPOINT(0, AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER, tmp);
155 }
156 
evergreen_hdmi_write_sad_regs(struct drm_encoder * encoder,struct cea_sad * sads,int sad_count)157 void evergreen_hdmi_write_sad_regs(struct drm_encoder *encoder,
158 	struct cea_sad *sads, int sad_count)
159 {
160 	int i;
161 	struct radeon_device *rdev = encoder->dev->dev_private;
162 	static const u16 eld_reg_to_type[][2] = {
163 		{ AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR0, HDMI_AUDIO_CODING_TYPE_PCM },
164 		{ AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR1, HDMI_AUDIO_CODING_TYPE_AC3 },
165 		{ AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR2, HDMI_AUDIO_CODING_TYPE_MPEG1 },
166 		{ AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR3, HDMI_AUDIO_CODING_TYPE_MP3 },
167 		{ AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR4, HDMI_AUDIO_CODING_TYPE_MPEG2 },
168 		{ AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR5, HDMI_AUDIO_CODING_TYPE_AAC_LC },
169 		{ AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR6, HDMI_AUDIO_CODING_TYPE_DTS },
170 		{ AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR7, HDMI_AUDIO_CODING_TYPE_ATRAC },
171 		{ AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR9, HDMI_AUDIO_CODING_TYPE_EAC3 },
172 		{ AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR10, HDMI_AUDIO_CODING_TYPE_DTS_HD },
173 		{ AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR11, HDMI_AUDIO_CODING_TYPE_MLP },
174 		{ AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR13, HDMI_AUDIO_CODING_TYPE_WMA_PRO },
175 	};
176 
177 	for (i = 0; i < ARRAY_SIZE(eld_reg_to_type); i++) {
178 		u32 value = 0;
179 		u8 stereo_freqs = 0;
180 		int max_channels = -1;
181 		int j;
182 
183 		for (j = 0; j < sad_count; j++) {
184 			struct cea_sad *sad = &sads[j];
185 
186 			if (sad->format == eld_reg_to_type[i][1]) {
187 				if (sad->channels > max_channels) {
188 					value = MAX_CHANNELS(sad->channels) |
189 						DESCRIPTOR_BYTE_2(sad->byte2) |
190 						SUPPORTED_FREQUENCIES(sad->freq);
191 					max_channels = sad->channels;
192 				}
193 
194 				if (sad->format == HDMI_AUDIO_CODING_TYPE_PCM)
195 					stereo_freqs |= sad->freq;
196 				else
197 					break;
198 			}
199 		}
200 
201 		value |= SUPPORTED_FREQUENCIES_STEREO(stereo_freqs);
202 
203 		WREG32_ENDPOINT(0, eld_reg_to_type[i][0], value);
204 	}
205 }
206 
207 /*
208  * build a AVI Info Frame
209  */
evergreen_set_avi_packet(struct radeon_device * rdev,u32 offset,unsigned char * buffer,size_t size)210 void evergreen_set_avi_packet(struct radeon_device *rdev, u32 offset,
211 			      unsigned char *buffer, size_t size)
212 {
213 	uint8_t *frame = buffer + 3;
214 
215 	WREG32(AFMT_AVI_INFO0 + offset,
216 		frame[0x0] | (frame[0x1] << 8) | (frame[0x2] << 16) | (frame[0x3] << 24));
217 	WREG32(AFMT_AVI_INFO1 + offset,
218 		frame[0x4] | (frame[0x5] << 8) | (frame[0x6] << 16) | (frame[0x7] << 24));
219 	WREG32(AFMT_AVI_INFO2 + offset,
220 		frame[0x8] | (frame[0x9] << 8) | (frame[0xA] << 16) | (frame[0xB] << 24));
221 	WREG32(AFMT_AVI_INFO3 + offset,
222 		frame[0xC] | (frame[0xD] << 8) | (buffer[1] << 24));
223 
224 	WREG32_P(HDMI_INFOFRAME_CONTROL1 + offset,
225 		 HDMI_AVI_INFO_LINE(2),	/* anything other than 0 */
226 		 ~HDMI_AVI_INFO_LINE_MASK);
227 }
228 
dce4_hdmi_audio_set_dto(struct radeon_device * rdev,struct radeon_crtc * crtc,unsigned int clock)229 void dce4_hdmi_audio_set_dto(struct radeon_device *rdev,
230 	struct radeon_crtc *crtc, unsigned int clock)
231 {
232 	unsigned int max_ratio = clock / 24000;
233 	u32 dto_phase;
234 	u32 wallclock_ratio;
235 	u32 value;
236 
237 	if (max_ratio >= 8) {
238 		dto_phase = 192 * 1000;
239 		wallclock_ratio = 3;
240 	} else if (max_ratio >= 4) {
241 		dto_phase = 96 * 1000;
242 		wallclock_ratio = 2;
243 	} else if (max_ratio >= 2) {
244 		dto_phase = 48 * 1000;
245 		wallclock_ratio = 1;
246 	} else {
247 		dto_phase = 24 * 1000;
248 		wallclock_ratio = 0;
249 	}
250 
251 	value = RREG32(DCCG_AUDIO_DTO0_CNTL) & ~DCCG_AUDIO_DTO_WALLCLOCK_RATIO_MASK;
252 	value |= DCCG_AUDIO_DTO_WALLCLOCK_RATIO(wallclock_ratio);
253 	value &= ~DCCG_AUDIO_DTO1_USE_512FBR_DTO;
254 	WREG32(DCCG_AUDIO_DTO0_CNTL, value);
255 
256 	/* Two dtos; generally use dto0 for HDMI */
257 	value = 0;
258 
259 	if (crtc)
260 		value |= DCCG_AUDIO_DTO0_SOURCE_SEL(crtc->crtc_id);
261 
262 	WREG32(DCCG_AUDIO_DTO_SOURCE, value);
263 
264 	/* Express [24MHz / target pixel clock] as an exact rational
265 	 * number (coefficient of two integer numbers.  DCCG_AUDIO_DTOx_PHASE
266 	 * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
267 	 */
268 	WREG32(DCCG_AUDIO_DTO0_PHASE, dto_phase);
269 	WREG32(DCCG_AUDIO_DTO0_MODULE, clock);
270 }
271 
dce4_dp_audio_set_dto(struct radeon_device * rdev,struct radeon_crtc * crtc,unsigned int clock)272 void dce4_dp_audio_set_dto(struct radeon_device *rdev,
273 			   struct radeon_crtc *crtc, unsigned int clock)
274 {
275 	u32 value;
276 
277 	value = RREG32(DCCG_AUDIO_DTO1_CNTL) & ~DCCG_AUDIO_DTO_WALLCLOCK_RATIO_MASK;
278 	value |= DCCG_AUDIO_DTO1_USE_512FBR_DTO;
279 	WREG32(DCCG_AUDIO_DTO1_CNTL, value);
280 
281 	/* Two dtos; generally use dto1 for DP */
282 	value = 0;
283 	value |= DCCG_AUDIO_DTO_SEL;
284 
285 	if (crtc)
286 		value |= DCCG_AUDIO_DTO0_SOURCE_SEL(crtc->crtc_id);
287 
288 	WREG32(DCCG_AUDIO_DTO_SOURCE, value);
289 
290 	/* Express [24MHz / target pixel clock] as an exact rational
291 	 * number (coefficient of two integer numbers.  DCCG_AUDIO_DTOx_PHASE
292 	 * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
293 	 */
294 	if (ASIC_IS_DCE41(rdev)) {
295 		unsigned int div = (RREG32(DCE41_DENTIST_DISPCLK_CNTL) &
296 			DENTIST_DPREFCLK_WDIVIDER_MASK) >>
297 			DENTIST_DPREFCLK_WDIVIDER_SHIFT;
298 		div = radeon_audio_decode_dfs_div(div);
299 
300 		if (div)
301 			clock = 100 * clock / div;
302 	}
303 
304 	WREG32(DCCG_AUDIO_DTO1_PHASE, 24000);
305 	WREG32(DCCG_AUDIO_DTO1_MODULE, clock);
306 }
307 
dce4_set_vbi_packet(struct drm_encoder * encoder,u32 offset)308 void dce4_set_vbi_packet(struct drm_encoder *encoder, u32 offset)
309 {
310 	struct drm_device *dev = encoder->dev;
311 	struct radeon_device *rdev = dev->dev_private;
312 
313 	WREG32(HDMI_VBI_PACKET_CONTROL + offset,
314 		HDMI_NULL_SEND |	/* send null packets when required */
315 		HDMI_GC_SEND |		/* send general control packets */
316 		HDMI_GC_CONT);		/* send general control packets every frame */
317 }
318 
dce4_hdmi_set_color_depth(struct drm_encoder * encoder,u32 offset,int bpc)319 void dce4_hdmi_set_color_depth(struct drm_encoder *encoder, u32 offset, int bpc)
320 {
321 	struct drm_device *dev = encoder->dev;
322 	struct radeon_device *rdev = dev->dev_private;
323 	struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
324 	uint32_t val;
325 
326 	val = RREG32(HDMI_CONTROL + offset);
327 	val &= ~HDMI_DEEP_COLOR_ENABLE;
328 	val &= ~HDMI_DEEP_COLOR_DEPTH_MASK;
329 
330 	switch (bpc) {
331 		case 0:
332 		case 6:
333 		case 8:
334 		case 16:
335 		default:
336 			DRM_DEBUG("%s: Disabling hdmi deep color for %d bpc.\n",
337 					 connector->name, bpc);
338 			break;
339 		case 10:
340 			val |= HDMI_DEEP_COLOR_ENABLE;
341 			val |= HDMI_DEEP_COLOR_DEPTH(HDMI_30BIT_DEEP_COLOR);
342 			DRM_DEBUG("%s: Enabling hdmi deep color 30 for 10 bpc.\n",
343 					 connector->name);
344 			break;
345 		case 12:
346 			val |= HDMI_DEEP_COLOR_ENABLE;
347 			val |= HDMI_DEEP_COLOR_DEPTH(HDMI_36BIT_DEEP_COLOR);
348 			DRM_DEBUG("%s: Enabling hdmi deep color 36 for 12 bpc.\n",
349 					 connector->name);
350 			break;
351 	}
352 
353 	WREG32(HDMI_CONTROL + offset, val);
354 }
355 
dce4_set_audio_packet(struct drm_encoder * encoder,u32 offset)356 void dce4_set_audio_packet(struct drm_encoder *encoder, u32 offset)
357 {
358 	struct drm_device *dev = encoder->dev;
359 	struct radeon_device *rdev = dev->dev_private;
360 
361 	WREG32(AFMT_INFOFRAME_CONTROL0 + offset,
362 		AFMT_AUDIO_INFO_UPDATE); /* required for audio info values to be updated */
363 
364 	WREG32(AFMT_60958_0 + offset,
365 		AFMT_60958_CS_CHANNEL_NUMBER_L(1));
366 
367 	WREG32(AFMT_60958_1 + offset,
368 		AFMT_60958_CS_CHANNEL_NUMBER_R(2));
369 
370 	WREG32(AFMT_60958_2 + offset,
371 		AFMT_60958_CS_CHANNEL_NUMBER_2(3) |
372 		AFMT_60958_CS_CHANNEL_NUMBER_3(4) |
373 		AFMT_60958_CS_CHANNEL_NUMBER_4(5) |
374 		AFMT_60958_CS_CHANNEL_NUMBER_5(6) |
375 		AFMT_60958_CS_CHANNEL_NUMBER_6(7) |
376 		AFMT_60958_CS_CHANNEL_NUMBER_7(8));
377 
378 	WREG32(AFMT_AUDIO_PACKET_CONTROL2 + offset,
379 		AFMT_AUDIO_CHANNEL_ENABLE(0xff));
380 
381 	WREG32(HDMI_AUDIO_PACKET_CONTROL + offset,
382 	       HDMI_AUDIO_DELAY_EN(1) | /* set the default audio delay */
383 	       HDMI_AUDIO_PACKETS_PER_LINE(3)); /* should be suffient for all audio modes and small enough for all hblanks */
384 
385 	/* allow 60958 channel status and send audio packets fields to be updated */
386 	WREG32_OR(AFMT_AUDIO_PACKET_CONTROL + offset,
387 		  AFMT_RESET_FIFO_WHEN_AUDIO_DIS | AFMT_60958_CS_UPDATE);
388 }
389 
390 
dce4_set_mute(struct drm_encoder * encoder,u32 offset,bool mute)391 void dce4_set_mute(struct drm_encoder *encoder, u32 offset, bool mute)
392 {
393 	struct drm_device *dev = encoder->dev;
394 	struct radeon_device *rdev = dev->dev_private;
395 
396 	if (mute)
397 		WREG32_OR(HDMI_GC + offset, HDMI_GC_AVMUTE);
398 	else
399 		WREG32_AND(HDMI_GC + offset, ~HDMI_GC_AVMUTE);
400 }
401 
evergreen_hdmi_enable(struct drm_encoder * encoder,bool enable)402 void evergreen_hdmi_enable(struct drm_encoder *encoder, bool enable)
403 {
404 	struct drm_device *dev = encoder->dev;
405 	struct radeon_device *rdev = dev->dev_private;
406 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
407 	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
408 
409 	if (!dig || !dig->afmt)
410 		return;
411 
412 	if (enable) {
413 		struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
414 
415 		if (connector && connector->display_info.has_audio) {
416 			WREG32(HDMI_INFOFRAME_CONTROL0 + dig->afmt->offset,
417 			       HDMI_AVI_INFO_SEND | /* enable AVI info frames */
418 			       HDMI_AVI_INFO_CONT | /* required for audio info values to be updated */
419 			       HDMI_AUDIO_INFO_SEND | /* enable audio info frames (frames won't be set until audio is enabled) */
420 			       HDMI_AUDIO_INFO_CONT); /* required for audio info values to be updated */
421 			WREG32_OR(AFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset,
422 				  AFMT_AUDIO_SAMPLE_SEND);
423 		} else {
424 			WREG32(HDMI_INFOFRAME_CONTROL0 + dig->afmt->offset,
425 			       HDMI_AVI_INFO_SEND | /* enable AVI info frames */
426 			       HDMI_AVI_INFO_CONT); /* required for audio info values to be updated */
427 			WREG32_AND(AFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset,
428 				   ~AFMT_AUDIO_SAMPLE_SEND);
429 		}
430 	} else {
431 		WREG32_AND(AFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset,
432 			   ~AFMT_AUDIO_SAMPLE_SEND);
433 		WREG32(HDMI_INFOFRAME_CONTROL0 + dig->afmt->offset, 0);
434 	}
435 
436 	dig->afmt->enabled = enable;
437 
438 	DRM_DEBUG("%sabling HDMI interface @ 0x%04X for encoder 0x%x\n",
439 		  enable ? "En" : "Dis", dig->afmt->offset, radeon_encoder->encoder_id);
440 }
441 
evergreen_dp_enable(struct drm_encoder * encoder,bool enable)442 void evergreen_dp_enable(struct drm_encoder *encoder, bool enable)
443 {
444 	struct drm_device *dev = encoder->dev;
445 	struct radeon_device *rdev = dev->dev_private;
446 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
447 	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
448 	struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
449 
450 	if (!dig || !dig->afmt)
451 		return;
452 
453 	if (enable && connector && connector->display_info.has_audio) {
454 		struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
455 		struct radeon_connector *radeon_connector = to_radeon_connector(connector);
456 		struct radeon_connector_atom_dig *dig_connector;
457 		uint32_t val;
458 
459 		WREG32_OR(AFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset,
460 			  AFMT_AUDIO_SAMPLE_SEND);
461 
462 		WREG32(EVERGREEN_DP_SEC_TIMESTAMP + dig->afmt->offset,
463 		       EVERGREEN_DP_SEC_TIMESTAMP_MODE(1));
464 
465 		if (!ASIC_IS_DCE6(rdev) && radeon_connector->con_priv) {
466 			dig_connector = radeon_connector->con_priv;
467 			val = RREG32(EVERGREEN_DP_SEC_AUD_N + dig->afmt->offset);
468 			val &= ~EVERGREEN_DP_SEC_N_BASE_MULTIPLE(0xf);
469 
470 			if (dig_connector->dp_clock == 162000)
471 				val |= EVERGREEN_DP_SEC_N_BASE_MULTIPLE(3);
472 			else
473 				val |= EVERGREEN_DP_SEC_N_BASE_MULTIPLE(5);
474 
475 			WREG32(EVERGREEN_DP_SEC_AUD_N + dig->afmt->offset, val);
476 		}
477 
478 		WREG32(EVERGREEN_DP_SEC_CNTL + dig->afmt->offset,
479 			EVERGREEN_DP_SEC_ASP_ENABLE |		/* Audio packet transmission */
480 			EVERGREEN_DP_SEC_ATP_ENABLE |		/* Audio timestamp packet transmission */
481 			EVERGREEN_DP_SEC_AIP_ENABLE |		/* Audio infoframe packet transmission */
482 			EVERGREEN_DP_SEC_STREAM_ENABLE);	/* Master enable for secondary stream engine */
483 	} else {
484 		WREG32(EVERGREEN_DP_SEC_CNTL + dig->afmt->offset, 0);
485 		WREG32_AND(AFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset,
486 			   ~AFMT_AUDIO_SAMPLE_SEND);
487 	}
488 
489 	dig->afmt->enabled = enable;
490 }
491