43  * DOC: High Definition Audio over HDMI and Display Port
46  * HDMI and Display Port. The audio programming sequences are divided into audio
191 static bool needs_wa_14020863754(struct intel_display *display)  in needs_wa_14020863754()  argument
193 	return DISPLAY_VERx100(display) == 3000 ||  in needs_wa_14020863754()
194 		DISPLAY_VERx100(display) == 2000 ||  in needs_wa_14020863754()
195 		DISPLAY_VERx100(display) == 1401;  in needs_wa_14020863754()
201 	struct intel_display *display = to_intel_display(crtc_state);  in audio_config_hdmi_pixel_clock()  local
211 	if (DISPLAY_VER(display) < 12 && adjusted_mode->crtc_clock > 148500)  in audio_config_hdmi_pixel_clock()
215 		drm_dbg_kms(display->drm,  in audio_config_hdmi_pixel_clock()
221 	drm_dbg_kms(display->drm,  in audio_config_hdmi_pixel_clock()
256 static int g4x_eld_buffer_size(struct intel_display *display)  in g4x_eld_buffer_size()  argument
260 	tmp = intel_de_read(display, G4X_AUD_CNTL_ST);  in g4x_eld_buffer_size()
268 	struct intel_display *display = to_intel_display(encoder);  in g4x_audio_codec_get_config()  local
273 	tmp = intel_de_read(display, G4X_AUD_CNTL_ST);  in g4x_audio_codec_get_config()
277 	intel_de_rmw(display, G4X_AUD_CNTL_ST, G4X_ELD_ADDRESS_MASK, 0);  in g4x_audio_codec_get_config()
279 	eld_buffer_size = g4x_eld_buffer_size(display);  in g4x_audio_codec_get_config()
283 		eld[i] = intel_de_read(display, G4X_HDMIW_HDMIEDID);  in g4x_audio_codec_get_config()
290 	struct intel_display *display = to_intel_display(encoder);  in g4x_audio_codec_disable()  local
294 	intel_de_rmw(display, G4X_AUD_CNTL_ST,  in g4x_audio_codec_disable()
305 	struct intel_display *display = to_intel_display(encoder);  in g4x_audio_codec_enable()  local
312 	intel_de_rmw(display, G4X_AUD_CNTL_ST,  in g4x_audio_codec_enable()
315 	eld_buffer_size = g4x_eld_buffer_size(display);  in g4x_audio_codec_enable()
319 		intel_de_write(display, G4X_HDMIW_HDMIEDID, eld[i]);  in g4x_audio_codec_enable()
321 		intel_de_write(display, G4X_HDMIW_HDMIEDID, 0);  in g4x_audio_codec_enable()
323 	drm_WARN_ON(display->drm,  in g4x_audio_codec_enable()
324 		    (intel_de_read(display, G4X_AUD_CNTL_ST) & G4X_ELD_ADDRESS_MASK) != 0);  in g4x_audio_codec_enable()
326 	intel_de_rmw(display, G4X_AUD_CNTL_ST,  in g4x_audio_codec_enable()
334 	struct intel_display *display = to_intel_display(encoder);  in hsw_dp_audio_config_update()  local
338 	intel_de_rmw(display, HSW_AUD_CFG(cpu_transcoder),  in hsw_dp_audio_config_update()
352 	struct intel_display *display = to_intel_display(encoder);  in hsw_hdmi_audio_config_update()  local
353 	struct i915_audio_component *acomp = display->audio.component;  in hsw_hdmi_audio_config_update()
361 	tmp = intel_de_read(display, HSW_AUD_CFG(cpu_transcoder));  in hsw_hdmi_audio_config_update()
369 		drm_dbg_kms(display->drm, "using N %d\n", n);  in hsw_hdmi_audio_config_update()
375 		drm_dbg_kms(display->drm, "using automatic N\n");  in hsw_hdmi_audio_config_update()
378 	intel_de_write(display, HSW_AUD_CFG(cpu_transcoder), tmp);  in hsw_hdmi_audio_config_update()
384 	tmp = intel_de_read(display, HSW_AUD_M_CTS_ENABLE(cpu_transcoder));  in hsw_hdmi_audio_config_update()
387 	intel_de_write(display, HSW_AUD_M_CTS_ENABLE(cpu_transcoder), tmp);  in hsw_hdmi_audio_config_update()
403 	struct intel_display *display = to_intel_display(crtc_state);  in intel_audio_sdp_split_update()  local
406 	if (!HAS_DP20(display))  in intel_audio_sdp_split_update()
409 	intel_de_rmw(display, AUD_DP_2DOT0_CTRL(trans), AUD_ENABLE_SDP_SPLIT,  in intel_audio_sdp_split_update()
417 	struct intel_display *display = to_intel_display(encoder);  in hsw_audio_codec_disable()  local
421 	mutex_lock(&display->audio.mutex);  in hsw_audio_codec_disable()
424 	intel_de_rmw(display, HSW_AUD_CFG(cpu_transcoder),  in hsw_audio_codec_disable()
433 	intel_de_rmw(display, HSW_AUD_PIN_ELD_CP_VLD,  in hsw_audio_codec_disable()
440 	intel_de_rmw(display, HSW_AUD_PIN_ELD_CP_VLD,  in hsw_audio_codec_disable()
443 	if (needs_wa_14020863754(display))  in hsw_audio_codec_disable()
444 		intel_de_rmw(display, AUD_CHICKENBIT_REG3, DACBE_DISABLE_MIN_HBLANK_FIX, 0);  in hsw_audio_codec_disable()
448 	mutex_unlock(&display->audio.mutex);  in hsw_audio_codec_disable()
454 	struct intel_display *display = to_intel_display(encoder);  in calc_hblank_early_prog()  local
466 	cdclk = display->cdclk.hw.cdclk;  in calc_hblank_early_prog()
472 	drm_dbg_kms(display->drm,  in calc_hblank_early_prog()
517 	struct intel_display *display = to_intel_display(encoder);  in enable_audio_dsc_wa()  local
522 	if (DISPLAY_VER(display) < 11)  in enable_audio_dsc_wa()
525 	val = intel_de_read(display, AUD_CONFIG_BE);  in enable_audio_dsc_wa()
527 	if (DISPLAY_VER(display) == 11)  in enable_audio_dsc_wa()
529 	else if (DISPLAY_VER(display) >= 12)  in enable_audio_dsc_wa()
556 	intel_de_write(display, AUD_CONFIG_BE, val);  in enable_audio_dsc_wa()
563 	struct intel_display *display = to_intel_display(encoder);  in hsw_audio_codec_enable()  local
567 	mutex_lock(&display->audio.mutex);  in hsw_audio_codec_enable()
575 	if (needs_wa_14020863754(display))  in hsw_audio_codec_enable()
576 		intel_de_rmw(display, AUD_CHICKENBIT_REG3, 0, DACBE_DISABLE_MIN_HBLANK_FIX);  in hsw_audio_codec_enable()
579 	intel_de_rmw(display, HSW_AUD_PIN_ELD_CP_VLD,  in hsw_audio_codec_enable()
585 	intel_de_rmw(display, HSW_AUD_PIN_ELD_CP_VLD,  in hsw_audio_codec_enable()
596 	mutex_unlock(&display->audio.mutex);  in hsw_audio_codec_enable()
603 static void ibx_audio_regs_init(struct intel_display *display,  in ibx_audio_regs_init()  argument
607 	if (display->platform.valleyview || display->platform.cherryview) {  in ibx_audio_regs_init()
612 	} else if (HAS_PCH_CPT(display)) {  in ibx_audio_regs_init()
617 	} else if (HAS_PCH_IBX(display)) {  in ibx_audio_regs_init()
629 	struct intel_display *display = to_intel_display(encoder);  in ibx_audio_codec_disable()  local
635 	if (drm_WARN_ON(display->drm, port == PORT_A))  in ibx_audio_codec_disable()
638 	ibx_audio_regs_init(display, pipe, &regs);  in ibx_audio_codec_disable()
640 	mutex_lock(&display->audio.mutex);  in ibx_audio_codec_disable()
643 	intel_de_rmw(display, regs.aud_config,  in ibx_audio_codec_disable()
652 	intel_de_rmw(display, regs.aud_cntrl_st2,  in ibx_audio_codec_disable()
655 	mutex_unlock(&display->audio.mutex);  in ibx_audio_codec_disable()
665 	struct intel_display *display = to_intel_display(encoder);  in ibx_audio_codec_enable()  local
671 	if (drm_WARN_ON(display->drm, port == PORT_A))  in ibx_audio_codec_enable()
676 	ibx_audio_regs_init(display, pipe, &regs);  in ibx_audio_codec_enable()
678 	mutex_lock(&display->audio.mutex);  in ibx_audio_codec_enable()
681 	intel_de_rmw(display, regs.aud_cntrl_st2,  in ibx_audio_codec_enable()
690 	intel_de_rmw(display, regs.aud_config,  in ibx_audio_codec_enable()
698 	mutex_unlock(&display->audio.mutex);  in ibx_audio_codec_enable()
705 	struct intel_display *display = to_intel_display(encoder);  in intel_audio_compute_config()  local
712 		drm_dbg_kms(display->drm,  in intel_audio_compute_config()
741 	struct intel_display *display = to_intel_display(encoder);  in intel_audio_codec_enable()  local
742 	struct i915_audio_component *acomp = display->audio.component;  in intel_audio_codec_enable()
752 	drm_dbg_kms(display->drm,  in intel_audio_codec_enable()
759 	if (display->funcs.audio)  in intel_audio_codec_enable()
760 		display->funcs.audio->audio_codec_enable(encoder,  in intel_audio_codec_enable()
764 	mutex_lock(&display->audio.mutex);  in intel_audio_codec_enable()
766 	audio_state = &display->audio.state[cpu_transcoder];  in intel_audio_codec_enable()
772 	mutex_unlock(&display->audio.mutex);  in intel_audio_codec_enable()
783 	intel_lpe_audio_notify(display, cpu_transcoder, port, crtc_state->eld,  in intel_audio_codec_enable()
801 	struct intel_display *display = to_intel_display(encoder);  in intel_audio_codec_disable()  local
802 	struct i915_audio_component *acomp = display->audio.component;  in intel_audio_codec_disable()
812 	drm_dbg_kms(display->drm,  in intel_audio_codec_disable()
818 	if (display->funcs.audio)  in intel_audio_codec_disable()
819 		display->funcs.audio->audio_codec_disable(encoder,  in intel_audio_codec_disable()
823 	mutex_lock(&display->audio.mutex);  in intel_audio_codec_disable()
825 	audio_state = &display->audio.state[cpu_transcoder];  in intel_audio_codec_disable()
830 	mutex_unlock(&display->audio.mutex);  in intel_audio_codec_disable()
841 	intel_lpe_audio_notify(display, cpu_transcoder, port, NULL, 0, false);  in intel_audio_codec_disable()
847 	struct intel_display *display = to_intel_display(encoder);  in intel_acomp_get_config()  local
851 	mutex_lock(&display->audio.mutex);  in intel_acomp_get_config()
853 	audio_state = &display->audio.state[cpu_transcoder];  in intel_acomp_get_config()
858 	mutex_unlock(&display->audio.mutex);  in intel_acomp_get_config()
864 	struct intel_display *display = to_intel_display(encoder);  in intel_audio_codec_get_config()  local
869 	if (display->funcs.audio)  in intel_audio_codec_get_config()
870 		display->funcs.audio->audio_codec_get_config(encoder, crtc_state);  in intel_audio_codec_get_config()
893  * @display: display device
895 void intel_audio_hooks_init(struct intel_display *display)  in intel_audio_hooks_init()  argument
897 	if (display->platform.g4x)  in intel_audio_hooks_init()
898 		display->funcs.audio = &g4x_audio_funcs;  in intel_audio_hooks_init()
899 	else if (display->platform.valleyview || display->platform.cherryview ||  in intel_audio_hooks_init()
900 		 HAS_PCH_CPT(display) || HAS_PCH_IBX(display))  in intel_audio_hooks_init()
901 		display->funcs.audio = &ibx_audio_funcs;  in intel_audio_hooks_init()
902 	else if (display->platform.haswell || DISPLAY_VER(display) >= 8)  in intel_audio_hooks_init()
903 		display->funcs.audio = &hsw_audio_funcs;  in intel_audio_hooks_init()
911 void intel_audio_cdclk_change_pre(struct intel_display *display)  in intel_audio_cdclk_change_pre()  argument
913 	if (DISPLAY_VER(display) >= 13)  in intel_audio_cdclk_change_pre()
914 		intel_de_rmw(display, AUD_TS_CDCLK_M, AUD_TS_CDCLK_M_EN, 0);  in intel_audio_cdclk_change_pre()
923 void intel_audio_cdclk_change_post(struct intel_display *display)  in intel_audio_cdclk_change_post()  argument
927 	if (DISPLAY_VER(display) >= 13) {  in intel_audio_cdclk_change_post()
928 		get_aud_ts_cdclk_m_n(display->cdclk.hw.ref,  in intel_audio_cdclk_change_post()
929 				     display->cdclk.hw.cdclk, &aud_ts);  in intel_audio_cdclk_change_post()
931 		intel_de_write(display, AUD_TS_CDCLK_N, aud_ts.n);  in intel_audio_cdclk_change_post()
932 		intel_de_write(display, AUD_TS_CDCLK_M, aud_ts.m | AUD_TS_CDCLK_M_EN);  in intel_audio_cdclk_change_post()
933 		drm_dbg_kms(display->drm, "aud_ts_cdclk set to M=%u, N=%u\n",  in intel_audio_cdclk_change_post()
959 static void glk_force_audio_cdclk(struct intel_display *display,  in glk_force_audio_cdclk()  argument
967 	crtc = intel_first_crtc(display);  in glk_force_audio_cdclk()
972 	state = drm_atomic_state_alloc(display->drm);  in glk_force_audio_cdclk()
973 	if (drm_WARN_ON(display->drm, !state))  in glk_force_audio_cdclk()
988 	drm_WARN_ON(display->drm, ret);  in glk_force_audio_cdclk()
998 	struct intel_display *display = to_intel_display(crtc_state);  in intel_audio_min_cdclk()  local
1012 		if (DISPLAY_VER(display) == 10) {  in intel_audio_min_cdclk()
1013 			/* Display WA #1145: glk */  in intel_audio_min_cdclk()
1015 		} else if (DISPLAY_VER(display) == 9 || display->platform.broadwell) {  in intel_audio_min_cdclk()
1016 			/* Display WA #1144: skl,bxt */  in intel_audio_min_cdclk()
1025 	if (DISPLAY_VER(display) >= 9)  in intel_audio_min_cdclk()
1035 	if ((display->platform.valleyview || display->platform.cherryview) &&  in intel_audio_min_cdclk()
1044 	struct intel_display *display = to_intel_display(kdev);  in intel_audio_component_get_power()  local
1050 	wakeref = intel_display_power_get(display, POWER_DOMAIN_AUDIO_PLAYBACK);  in intel_audio_component_get_power()
1052 	if (display->audio.power_refcount++ == 0) {  in intel_audio_component_get_power()
1053 		if (DISPLAY_VER(display) >= 9) {  in intel_audio_component_get_power()
1054 			intel_de_write(display, AUD_FREQ_CNTRL,  in intel_audio_component_get_power()
1055 				       display->audio.freq_cntrl);  in intel_audio_component_get_power()
1056 			drm_dbg_kms(display->drm,  in intel_audio_component_get_power()
1058 				    display->audio.freq_cntrl);  in intel_audio_component_get_power()
1062 		if (display->platform.geminilake)  in intel_audio_component_get_power()
1063 			glk_force_audio_cdclk(display, true);  in intel_audio_component_get_power()
1065 		if (DISPLAY_VER(display) >= 10)  in intel_audio_component_get_power()
1066 			intel_de_rmw(display, AUD_PIN_BUF_CTL,  in intel_audio_component_get_power()
1076 	struct intel_display *display = to_intel_display(kdev);  in intel_audio_component_put_power()  local
1080 	if (--display->audio.power_refcount == 0)  in intel_audio_component_put_power()
1081 		if (display->platform.geminilake)  in intel_audio_component_put_power()
1082 			glk_force_audio_cdclk(display, false);  in intel_audio_component_put_power()
1084 	intel_display_power_put(display, POWER_DOMAIN_AUDIO_PLAYBACK, wakeref);  in intel_audio_component_put_power()
1090 	struct intel_display *display = to_intel_display(kdev);  in intel_audio_component_codec_wake_override()  local
1093 	if (DISPLAY_VER(display) < 9)  in intel_audio_component_codec_wake_override()
1102 	intel_de_rmw(display, HSW_AUD_CHICKENBIT,  in intel_audio_component_codec_wake_override()
1107 		intel_de_rmw(display, HSW_AUD_CHICKENBIT,  in intel_audio_component_codec_wake_override()
1118 	struct intel_display *display = to_intel_display(kdev);  in intel_audio_component_get_cdclk_freq()  local
1120 	if (drm_WARN_ON_ONCE(display->drm, !HAS_DDI(display)))  in intel_audio_component_get_cdclk_freq()
1123 	return display->cdclk.hw.cdclk;  in intel_audio_component_get_cdclk_freq()
1135 static struct intel_audio_state *find_audio_state(struct intel_display *display,  in find_audio_state()  argument
1143 		if (drm_WARN_ON(display->drm,  in find_audio_state()
1144 				cpu_transcoder >= ARRAY_SIZE(display->audio.state)))  in find_audio_state()
1147 		audio_state = &display->audio.state[cpu_transcoder];  in find_audio_state()
1159 	for_each_cpu_transcoder(display, cpu_transcoder) {  in find_audio_state()
1163 		audio_state = &display->audio.state[cpu_transcoder];  in find_audio_state()
1177 	struct intel_display *display = to_intel_display(kdev);  in intel_audio_component_sync_audio_rate()  local
1178 	struct i915_audio_component *acomp = display->audio.component;  in intel_audio_component_sync_audio_rate()
1185 	if (!HAS_DDI(display))  in intel_audio_component_sync_audio_rate()
1189 	mutex_lock(&display->audio.mutex);  in intel_audio_component_sync_audio_rate()
1191 	audio_state = find_audio_state(display, port, cpu_transcoder);  in intel_audio_component_sync_audio_rate()
1193 		drm_dbg_kms(display->drm, "Not valid for port %c\n",  in intel_audio_component_sync_audio_rate()
1211 	mutex_unlock(&display->audio.mutex);  in intel_audio_component_sync_audio_rate()
1220 	struct intel_display *display = to_intel_display(kdev);  in intel_audio_component_get_eld()  local
1224 	mutex_lock(&display->audio.mutex);  in intel_audio_component_get_eld()
1226 	audio_state = find_audio_state(display, port, cpu_transcoder);  in intel_audio_component_get_eld()
1228 		drm_dbg_kms(display->drm, "Not valid for port %c\n",  in intel_audio_component_get_eld()
1230 		mutex_unlock(&display->audio.mutex);  in intel_audio_component_get_eld()
1242 	mutex_unlock(&display->audio.mutex);  in intel_audio_component_get_eld()
1259 	struct intel_display *display = to_intel_display(drv_kdev);  in intel_audio_component_bind()  local
1263 	if (drm_WARN_ON(display->drm, acomp->base.ops || acomp->base.dev))  in intel_audio_component_bind()
1266 	if (drm_WARN_ON(display->drm,  in intel_audio_component_bind()
1271 	drm_modeset_lock_all(display->drm);  in intel_audio_component_bind()
1277 	display->audio.component = acomp;  in intel_audio_component_bind()
1278 	drm_modeset_unlock_all(display->drm);  in intel_audio_component_bind()
1286 	struct intel_display *display = to_intel_display(drv_kdev);  in intel_audio_component_unbind()  local
1289 	drm_modeset_lock_all(display->drm);  in intel_audio_component_unbind()
1292 	display->audio.component = NULL;  in intel_audio_component_unbind()
1293 	drm_modeset_unlock_all(display->drm);  in intel_audio_component_unbind()
1297 	if (display->audio.power_refcount)  in intel_audio_component_unbind()
1298 		drm_err(display->drm,  in intel_audio_component_unbind()
1300 			display->audio.power_refcount);  in intel_audio_component_unbind()
1319  * @display: display device
1333 static void intel_audio_component_init(struct intel_display *display)  in intel_audio_component_init()  argument
1337 	if (DISPLAY_VER(display) >= 9) {  in intel_audio_component_init()
1338 		aud_freq_init = intel_de_read(display, AUD_FREQ_CNTRL);  in intel_audio_component_init()
1340 		if (DISPLAY_VER(display) >= 12)  in intel_audio_component_init()
1346 		if ((display->platform.tigerlake || display->platform.rocketlake) &&  in intel_audio_component_init()
1350 		drm_dbg_kms(display->drm,  in intel_audio_component_init()
1354 		display->audio.freq_cntrl = aud_freq;  in intel_audio_component_init()
1358 	intel_audio_cdclk_change_post(display);  in intel_audio_component_init()
1361 static void intel_audio_component_register(struct intel_display *display)  in intel_audio_component_register()  argument
1365 	ret = component_add_typed(display->drm->dev,  in intel_audio_component_register()
1369 		drm_err(display->drm,  in intel_audio_component_register()
1375 	display->audio.component_registered = true;  in intel_audio_component_register()
1380  * @display: display device
1385 static void intel_audio_component_cleanup(struct intel_display *display)  in intel_audio_component_cleanup()  argument
1387 	if (!display->audio.component_registered)  in intel_audio_component_cleanup()
1390 	component_del(display->drm->dev, &intel_audio_component_bind_ops);  in intel_audio_component_cleanup()
1391 	display->audio.component_registered = false;  in intel_audio_component_cleanup()
1397  * @display: display device
1400 void intel_audio_init(struct intel_display *display)  in intel_audio_init()  argument
1402 	if (intel_lpe_audio_init(display) < 0)  in intel_audio_init()
1403 		intel_audio_component_init(display);  in intel_audio_init()
1406 void intel_audio_register(struct intel_display *display)  in intel_audio_register()  argument
1408 	if (!display->audio.lpe.platdev)  in intel_audio_register()
1409 		intel_audio_component_register(display);  in intel_audio_register()
1414  * @display: display device
1416 void intel_audio_deinit(struct intel_display *display)  in intel_audio_deinit()  argument
1418 	if (display->audio.lpe.platdev)  in intel_audio_deinit()
1419 		intel_lpe_audio_teardown(display);  in intel_audio_deinit()
1421 		intel_audio_component_cleanup(display);  in intel_audio_deinit()