Unverified Commit 13aeb56e authored by Venkata Prasad Potturu's avatar Venkata Prasad Potturu Committed by Mark Brown
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ASoC: amd: acp: Add I2S TDM support for acp6.3 platform 



Add slots selection and 32-channels TDM support for
acp6.3 platform.

Signed-off-by: default avatarVenkata Prasad Potturu <venkataprasad.potturu@amd.com>
Link: https://patch.msgid.link/20240903113427.182997-5-venkataprasad.potturu@amd.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 973e9ede

sound/soc/amd/acp/acp-i2s.c

+56 −0
Original line number Diff line number Diff line
@@ -133,6 +133,19 @@ static int acp_i2s_set_tdm_slot(struct snd_soc_dai *dai, u32 tx_mask, u32 rx_mas 
			return -EINVAL;

		}

		break;

	case ACP63_DEV:

		switch (slots) {

		case 1 ... 31:

			no_of_slots = slots;

			break;

		case 32:

			no_of_slots = 0;

			break;

		default:

			dev_err(dev, "Unsupported slots %d\n", slots);

			return -EINVAL;

		}

		break;

	default:

		dev_err(dev, "Unknown chip revision %d\n", chip->acp_rev);

		return -EINVAL;
@@ -152,6 +165,14 @@ static int acp_i2s_set_tdm_slot(struct snd_soc_dai *dai, u32 tx_mask, u32 rx_mas 
				adata->tdm_rx_fmt[stream->dai_id - 1] =

					FRM_LEN | (slots << 15) | (slot_len << 18);

			break;

		case ACP63_DEV:

			if (tx_mask && stream->dir == SNDRV_PCM_STREAM_PLAYBACK)

				adata->tdm_tx_fmt[stream->dai_id - 1] =

						FRM_LEN | (slots << 13) | (slot_len << 18);

			else if (rx_mask && stream->dir == SNDRV_PCM_STREAM_CAPTURE)

				adata->tdm_rx_fmt[stream->dai_id - 1] =

						FRM_LEN | (slots << 13) | (slot_len << 18);

			break;

		default:

			dev_err(dev, "Unknown chip revision %d\n", chip->acp_rev);

			return -EINVAL;
@@ -314,6 +335,41 @@ static int acp_i2s_hwparams(struct snd_pcm_substream *substream, struct snd_pcm_ 
		default:

			return -EINVAL;

		}



		switch (params_rate(params)) {

		case 8000:

		case 16000:

		case 24000:

		case 48000:

		case 96000:

		case 192000:

			switch (params_channels(params)) {

			case 2:

				break;

			case 4:

				bclk_div_val = bclk_div_val >> 1;

				lrclk_div_val = lrclk_div_val << 1;

				break;

			case 8:

				bclk_div_val = bclk_div_val >> 2;

				lrclk_div_val = lrclk_div_val << 2;

				break;

			case 16:

				bclk_div_val = bclk_div_val >> 3;

				lrclk_div_val = lrclk_div_val << 3;

				break;

			case 32:

				bclk_div_val = bclk_div_val >> 4;

				lrclk_div_val = lrclk_div_val << 4;

				break;

			default:

				dev_err(dev, "Unsupported channels %#x\n",

					params_channels(params));

			}

			break;

		default:

			break;

		}

		adata->lrclk_div = lrclk_div_val;

		adata->bclk_div = bclk_div_val;

	}