drm/amd/display: dce_audio: add DCE6 specific macros,functions

[Why]
DCE6 has no DCCG_AUDIO_DTO2_USE_512FBR_DTO mask in DCCG_AUDIO_DTO_SOURCE register

[How]
Add DCE6 specific macros definitions for AUD masks
DCE6 AUD macros will avoid buiding errors when using DCE6 headers
Add dce60_aud_wall_dto_setup() w/o 512*Fs programming
Use dce60_aud_wall_dto_setup() in dce60_funcs
Add DCE specific dce60_audio_create

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mauro Rossi <issor.oruam@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 131 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_audio.c b/drivers/gpu/drm/amd/display/dc/dce/dce_audio.c
index 408046579712..2a2a0fdb9253 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_audio.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_audio.c
@@ -867,6 +867,98 @@ void dce_aud_wall_dto_setup(
 	}
 }
 
+#if defined(CONFIG_DRM_AMD_DC_SI)
+void dce60_aud_wall_dto_setup(
+	struct audio *audio,
+	enum signal_type signal,
+	const struct audio_crtc_info *crtc_info,
+	const struct audio_pll_info *pll_info)
+{
+	struct dce_audio *aud = DCE_AUD(audio);
+
+	struct azalia_clock_info clock_info = { 0 };
+
+	if (dc_is_hdmi_signal(signal)) {
+		uint32_t src_sel;
+
+		/*DTO0 Programming goal:
+		-generate 24MHz, 128*Fs from 24MHz
+		-use DTO0 when an active HDMI port is connected
+		(optionally a DP is connected) */
+
+		/* calculate DTO settings */
+		get_azalia_clock_info_hdmi(
+			crtc_info->requested_pixel_clock_100Hz,
+			crtc_info->calculated_pixel_clock_100Hz,
+			&clock_info);
+
+		DC_LOG_HW_AUDIO("\n%s:Input::requested_pixel_clock_100Hz = %d"\
+				"calculated_pixel_clock_100Hz =%d\n"\
+				"audio_dto_module = %d audio_dto_phase =%d \n\n", __func__,\
+				crtc_info->requested_pixel_clock_100Hz,\
+				crtc_info->calculated_pixel_clock_100Hz,\
+				clock_info.audio_dto_module,\
+				clock_info.audio_dto_phase);
+
+		/* On TN/SI, Program DTO source select and DTO select before
+		programming DTO modulo and DTO phase. These bits must be
+		programmed first, otherwise there will be no HDMI audio at boot
+		up. This is a HW sequence change (different from old ASICs).
+		Caution when changing this programming sequence.
+
+		HDMI enabled, using DTO0
+		program master CRTC for DTO0 */
+		src_sel = pll_info->dto_source - DTO_SOURCE_ID0;
+		REG_UPDATE_2(DCCG_AUDIO_DTO_SOURCE,
+			DCCG_AUDIO_DTO0_SOURCE_SEL, src_sel,
+			DCCG_AUDIO_DTO_SEL, 0);
+
+		/* module */
+		REG_UPDATE(DCCG_AUDIO_DTO0_MODULE,
+			DCCG_AUDIO_DTO0_MODULE, clock_info.audio_dto_module);
+
+		/* phase */
+		REG_UPDATE(DCCG_AUDIO_DTO0_PHASE,
+			DCCG_AUDIO_DTO0_PHASE, clock_info.audio_dto_phase);
+	} else {
+		/*DTO1 Programming goal:
+		-generate 24MHz, 128*Fs from 24MHz (DCE6 does not support 512*Fs)
+		-default is to used DTO1, and switch to DTO0 when an audio
+		master HDMI port is connected
+		-use as default for DP
+
+		calculate DTO settings */
+		get_azalia_clock_info_dp(
+			crtc_info->requested_pixel_clock_100Hz,
+			pll_info,
+			&clock_info);
+
+		/* Program DTO select before programming DTO modulo and DTO
+		phase. default to use DTO1 */
+
+		REG_UPDATE(DCCG_AUDIO_DTO_SOURCE,
+				DCCG_AUDIO_DTO_SEL, 1);
+
+			/* DCCG_AUDIO_DTO2_USE_512FBR_DTO, 1)
+			 * Cannot select 512fs for DP
+			 *
+			 * DCE6 has no DCCG_AUDIO_DTO2_USE_512FBR_DTO mask
+			*/
+
+		/* module */
+		REG_UPDATE(DCCG_AUDIO_DTO1_MODULE,
+				DCCG_AUDIO_DTO1_MODULE, clock_info.audio_dto_module);
+
+		/* phase */
+		REG_UPDATE(DCCG_AUDIO_DTO1_PHASE,
+				DCCG_AUDIO_DTO1_PHASE, clock_info.audio_dto_phase);
+
+		/* DCE6 has no DCCG_AUDIO_DTO2_USE_512FBR_DTO mask in DCCG_AUDIO_DTO_SOURCE reg */
+
+	}
+}
+#endif
+
 static bool dce_aud_endpoint_valid(struct audio *audio)
 {
 	uint32_t value;
@@ -926,6 +1018,19 @@ static const struct audio_funcs funcs = {
 	.az_configure = dce_aud_az_configure,
 	.destroy = dce_aud_destroy,
 };
+
+#if defined(CONFIG_DRM_AMD_DC_SI)
+static const struct audio_funcs dce60_funcs = {
+	.endpoint_valid = dce_aud_endpoint_valid,
+	.hw_init = dce_aud_hw_init,
+	.wall_dto_setup = dce60_aud_wall_dto_setup,
+	.az_enable = dce_aud_az_enable,
+	.az_disable = dce_aud_az_disable,
+	.az_configure = dce_aud_az_configure,
+	.destroy = dce_aud_destroy,
+};
+#endif
+
 void dce_aud_destroy(struct audio **audio)
 {
 	struct dce_audio *aud = DCE_AUD(*audio);
@@ -959,3 +1064,29 @@ struct audio *dce_audio_create(
 	return &audio->base;
 }
 
+#if defined(CONFIG_DRM_AMD_DC_SI)
+struct audio *dce60_audio_create(
+		struct dc_context *ctx,
+		unsigned int inst,
+		const struct dce_audio_registers *reg,
+		const struct dce_audio_shift *shifts,
+		const struct dce_audio_mask *masks
+		)
+{
+	struct dce_audio *audio = kzalloc(sizeof(*audio), GFP_KERNEL);
+
+	if (audio == NULL) {
+		ASSERT_CRITICAL(audio);
+		return NULL;
+	}
+
+	audio->base.ctx = ctx;
+	audio->base.inst = inst;
+	audio->base.funcs = &dce60_funcs;
+
+	audio->regs = reg;
+	audio->shifts = shifts;
+	audio->masks = masks;
+	return &audio->base;
+}
+#endif