Commit 1c419391 authored by Mohan Kumar D's avatar Mohan Kumar D Committed by Takashi Iwai
Browse files

ALSA: hda/tegra: Add Tegra264 support 



Update HDA driver to support Tegra264 differences from legacy HDA,
which includes: clocks/resets, always power on, and hardware-managed
FPCI/IPFS initialization. The driver retrieves this chip-specific
information from soc_data.

Signed-off-by: default avatarMohan Kumar D <mkumard@nvidia.com>
Signed-off-by: default avatarSheetal <sheetal@nvidia.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250512064258.1028331-4-sheetal@nvidia.com
parent 3bc2f3ba

sound/pci/hda/hda_tegra.c

+45 −6
Original line number Diff line number Diff line
@@ -72,6 +72,10 @@ 
struct hda_tegra_soc {

	bool has_hda2codec_2x_reset;

	bool has_hda2hdmi;

	bool has_hda2codec_2x;

	bool input_stream;

	bool always_on;

	bool requires_init;

};



struct hda_tegra {
@@ -187,7 +191,9 @@ static int hda_tegra_runtime_resume(struct device *dev) 
	if (rc != 0)

		return rc;

	if (chip->running) {

		if (hda->soc->requires_init)

			hda_tegra_init(hda);



		azx_init_chip(chip, 1);

		/* disable controller wake up event*/

		azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) &
@@ -250,6 +256,7 @@ static int hda_tegra_init_chip(struct azx *chip, struct platform_device *pdev) 
	bus->remap_addr = hda->regs + HDA_BAR0;

	bus->addr = res->start + HDA_BAR0;



	if (hda->soc->requires_init)

		hda_tegra_init(hda);



	return 0;
@@ -323,7 +330,7 @@ static int hda_tegra_first_init(struct azx *chip, struct platform_device *pdev) 
	 * starts with offset 0 which is wrong as HW register for output stream

	 * offset starts with 4.

	 */

	if (of_device_is_compatible(np, "nvidia,tegra234-hda"))

	if (!hda->soc->input_stream)

		chip->capture_streams = 4;



	chip->playback_streams = (gcap >> 12) & 0x0f;
@@ -419,7 +426,6 @@ static int hda_tegra_create(struct snd_card *card, 
	chip->driver_caps = driver_caps;

	chip->driver_type = driver_caps & 0xff;

	chip->dev_index = 0;

	chip->jackpoll_interval = msecs_to_jiffies(5000);

	INIT_LIST_HEAD(&chip->pcm_list);



	chip->codec_probe_mask = -1;
@@ -436,7 +442,16 @@ static int hda_tegra_create(struct snd_card *card, 
	chip->bus.core.sync_write = 0;

	chip->bus.core.needs_damn_long_delay = 1;

	chip->bus.core.aligned_mmio = 1;



	/*

	 * HDA power domain and clocks are always on for Tegra264 and

	 * the jack detection logic would work always, so no need of

	 * jack polling mechanism running.

	 */

	if (!hda->soc->always_on) {

		chip->jackpoll_interval = msecs_to_jiffies(5000);

		chip->bus.jackpoll_in_suspend = 1;

	}



	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);

	if (err < 0) {
@@ -450,22 +465,44 @@ static int hda_tegra_create(struct snd_card *card, 
static const struct hda_tegra_soc tegra30_data = {

	.has_hda2codec_2x_reset = true,

	.has_hda2hdmi = true,

	.has_hda2codec_2x = true,

	.input_stream = true,

	.always_on = false,

	.requires_init = true,

};



static const struct hda_tegra_soc tegra194_data = {

	.has_hda2codec_2x_reset = false,

	.has_hda2hdmi = true,

	.has_hda2codec_2x = true,

	.input_stream = true,

	.always_on = false,

	.requires_init = true,

};



static const struct hda_tegra_soc tegra234_data = {

	.has_hda2codec_2x_reset = true,

	.has_hda2hdmi = false,

	.has_hda2codec_2x = true,

	.input_stream = false,

	.always_on = false,

	.requires_init = true,

};



static const struct hda_tegra_soc tegra264_data = {

	.has_hda2codec_2x_reset = true,

	.has_hda2hdmi = false,

	.has_hda2codec_2x = false,

	.input_stream = false,

	.always_on = true,

	.requires_init = false,

};



static const struct of_device_id hda_tegra_match[] = {

	{ .compatible = "nvidia,tegra30-hda", .data = &tegra30_data },

	{ .compatible = "nvidia,tegra194-hda", .data = &tegra194_data },

	{ .compatible = "nvidia,tegra234-hda", .data = &tegra234_data },

	{ .compatible = "nvidia,tegra264-hda", .data = &tegra264_data },

	{},

};

MODULE_DEVICE_TABLE(of, hda_tegra_match);
@@ -520,6 +557,8 @@ static int hda_tegra_probe(struct platform_device *pdev) 
	hda->clocks[hda->nclocks++].id = "hda";

	if (hda->soc->has_hda2hdmi)

		hda->clocks[hda->nclocks++].id = "hda2hdmi";



	if (hda->soc->has_hda2codec_2x)

		hda->clocks[hda->nclocks++].id = "hda2codec_2x";



	err = devm_clk_bulk_get(&pdev->dev, hda->nclocks, hda->clocks);

sound/pci/hda/patch_hdmi.c

+1 −0
Original line number Diff line number Diff line
@@ -4551,6 +4551,7 @@ HDA_CODEC_ENTRY(0x10de002e, "Tegra186 HDMI/DP1", patch_tegra_hdmi), 
HDA_CODEC_ENTRY(0x10de002f, "Tegra194 HDMI/DP2", patch_tegra_hdmi),

HDA_CODEC_ENTRY(0x10de0030, "Tegra194 HDMI/DP3", patch_tegra_hdmi),

HDA_CODEC_ENTRY(0x10de0031, "Tegra234 HDMI/DP", patch_tegra234_hdmi),

HDA_CODEC_ENTRY(0x10de0034, "Tegra264 HDMI/DP",	patch_tegra234_hdmi),

HDA_CODEC_ENTRY(0x10de0040, "GPU 40 HDMI/DP",	patch_nvhdmi),

HDA_CODEC_ENTRY(0x10de0041, "GPU 41 HDMI/DP",	patch_nvhdmi),

HDA_CODEC_ENTRY(0x10de0042, "GPU 42 HDMI/DP",	patch_nvhdmi),