Unverified Commit 37897bab authored by Yong Zhi's avatar Yong Zhi Committed by Mark Brown
Browse files

ASoC: Intel: Boards: tgl_max98373: Add BT offload support 



BT audio offload is internally configured with virtual GPIOs,
the port assignment is fixed on SSP2 for TGL/ADL platforms.

Reviewed-by: default avatarKai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: default avatarYong Zhi <yong.zhi@intel.com>
Signed-off-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210505163705.305616-2-pierre-louis.bossart@linux.intel.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 3f0d23e8

sound/soc/intel/boards/sof_rt5682.c

+42 −0
Original line number Diff line number Diff line
@@ -50,6 +50,13 @@ 
#define SOF_MAX98373_SPEAKER_AMP_PRESENT	BIT(17)

#define SOF_MAX98360A_SPEAKER_AMP_PRESENT	BIT(18)



/* BT audio offload: reserve 3 bits for future */

#define SOF_BT_OFFLOAD_SSP_SHIFT		19

#define SOF_BT_OFFLOAD_SSP_MASK		(GENMASK(21, 19))

#define SOF_BT_OFFLOAD_SSP(quirk)	\

	(((quirk) << SOF_BT_OFFLOAD_SSP_SHIFT) & SOF_BT_OFFLOAD_SSP_MASK)

#define SOF_SSP_BT_OFFLOAD_PRESENT		BIT(22)



/* Default: MCLK on, MCLK 19.2M, SSP0  */

static unsigned long sof_rt5682_quirk = SOF_RT5682_MCLK_EN |

					SOF_RT5682_SSP_CODEC(0);
@@ -591,6 +598,13 @@ static struct snd_soc_dai_link_component rt1015_components[] = { 
	},

};



static struct snd_soc_dai_link_component dummy_component[] = {

	{

		.name = "snd-soc-dummy",

		.dai_name = "snd-soc-dummy-dai",

	}

};



static struct snd_soc_dai_link *sof_card_dai_links_create(struct device *dev,

							  int ssp_codec,

							  int ssp_amp,
@@ -780,6 +794,31 @@ static struct snd_soc_dai_link *sof_card_dai_links_create(struct device *dev, 
			if (!links[id].cpus->dai_name)

				goto devm_err;

		}

		id++;

	}



	/* BT audio offload */

	if (sof_rt5682_quirk & SOF_SSP_BT_OFFLOAD_PRESENT) {

		int port = (sof_rt5682_quirk & SOF_BT_OFFLOAD_SSP_MASK) >>

				SOF_BT_OFFLOAD_SSP_SHIFT;



		links[id].id = id;

		links[id].cpus = &cpus[id];

		links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,

							  "SSP%d Pin", port);

		if (!links[id].cpus->dai_name)

			goto devm_err;

		links[id].name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-BT", port);

		if (!links[id].name)

			goto devm_err;

		links[id].codecs = dummy_component;

		links[id].num_codecs = ARRAY_SIZE(dummy_component);

		links[id].platforms = platform_component;

		links[id].num_platforms = ARRAY_SIZE(platform_component);

		links[id].dpcm_playback = 1;

		links[id].dpcm_capture = 1;

		links[id].no_pcm = 1;

		links[id].num_cpus = 1;

	}



	return links;
@@ -869,6 +908,9 @@ static int sof_audio_probe(struct platform_device *pdev) 
	else if (sof_rt5682_quirk & SOF_RT1015P_SPEAKER_AMP_PRESENT)

		sof_rt1015p_codec_conf(&sof_audio_card_rt5682);



	if (sof_rt5682_quirk & SOF_SSP_BT_OFFLOAD_PRESENT)

		sof_audio_card_rt5682.num_links++;



	dai_links = sof_card_dai_links_create(&pdev->dev, ssp_codec, ssp_amp,

					      dmic_be_num, hdmi_num);

	if (!dai_links)