[v1,1/2] ASoC: tegra: Restore AC97 support

Commit Message

Dmitry Osipenko Oct. 24, 2021, 7:28 p.m. UTC

The device-tree of AC97 codecs need to be parsed differently from I2S
codecs, plus codec device may need to be created. This was missed by the
patch that unified machine drivers into a single driver, fix it. It should
restore audio on Toradex Colibri board.

Cc: <[e-mail]>
Fixes: cc8f70f56039 ("ASoC: tegra: Unify ASoC machine drivers")
Signed-off-by: Dmitry Osipenko <[e-mail]>
---
 sound/soc/tegra/tegra_asoc_machine.c | 59 +++++++++++++++++++++++-----
 sound/soc/tegra/tegra_asoc_machine.h |  1 +
 2 files changed, 50 insertions(+), 10 deletions(-)

Comments

Mark Brown Oct. 25, 2021, 4:39 p.m. UTC | #1

On Sun, 24 Oct 2021 22:28:52 +0300, Dmitry Osipenko wrote:
> The device-tree of AC97 codecs need to be parsed differently from I2S
> codecs, plus codec device may need to be created. This was missed by the
> patch that unified machine drivers into a single driver, fix it. It should
> restore audio on Toradex Colibri board.
> 
> 

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/2] ASoC: tegra: Restore AC97 support
      commit: de8fc2b0a3f9930f3cbe801d40758bb1d80b0ad8
[2/2] ASoC: tegra: Set default card name for Trimslice
      commit: 824edd866a13db7dbb0d8e26d2142f10271b6460

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

Patch

diff --git a/sound/soc/tegra/tegra_asoc_machine.c b/sound/soc/tegra/tegra_asoc_machine.c
index 3cbe6ef1cf9f..d92fabff08bc 100644
--- a/sound/soc/tegra/tegra_asoc_machine.c
+++ b/sound/soc/tegra/tegra_asoc_machine.c
@@ -341,9 +341,34 @@  tegra_machine_parse_phandle(struct device *dev, const char *name)
 	return np;
 }
 
+static void tegra_machine_unregister_codec(void *pdev)
+{
+	platform_device_unregister(pdev);
+}
+
+static int tegra_machine_register_codec(struct device *dev, const char *name)
+{
+	struct platform_device *pdev;
+	int err;
+
+	if (!name)
+		return 0;
+
+	pdev = platform_device_register_simple(name, -1, NULL, 0);
+	if (IS_ERR(pdev))
+		return PTR_ERR(pdev);
+
+	err = devm_add_action_or_reset(dev, tegra_machine_unregister_codec,
+				       pdev);
+	if (err)
+		return err;
+
+	return 0;
+}
+
 int tegra_asoc_machine_probe(struct platform_device *pdev)
 {
-	struct device_node *np_codec, *np_i2s;
+	struct device_node *np_codec, *np_i2s, *np_ac97;
 	const struct tegra_asoc_data *asoc;
 	struct device *dev = &pdev->dev;
 	struct tegra_machine *machine;
@@ -404,17 +429,30 @@  int tegra_asoc_machine_probe(struct platform_device *pdev)
 			return err;
 	}
 
-	np_codec = tegra_machine_parse_phandle(dev, "nvidia,audio-codec");
-	if (IS_ERR(np_codec))
-		return PTR_ERR(np_codec);
+	if (asoc->set_ac97) {
+		err = tegra_machine_register_codec(dev, asoc->codec_dev_name);
+		if (err)
+			return err;
+
+		np_ac97 = tegra_machine_parse_phandle(dev, "nvidia,ac97-controller");
+		if (IS_ERR(np_ac97))
+			return PTR_ERR(np_ac97);
 
-	np_i2s = tegra_machine_parse_phandle(dev, "nvidia,i2s-controller");
-	if (IS_ERR(np_i2s))
-		return PTR_ERR(np_i2s);
+		card->dai_link->cpus->of_node = np_ac97;
+		card->dai_link->platforms->of_node = np_ac97;
+	} else {
+		np_codec = tegra_machine_parse_phandle(dev, "nvidia,audio-codec");
+		if (IS_ERR(np_codec))
+			return PTR_ERR(np_codec);
 
-	card->dai_link->cpus->of_node = np_i2s;
-	card->dai_link->codecs->of_node = np_codec;
-	card->dai_link->platforms->of_node = np_i2s;
+		np_i2s = tegra_machine_parse_phandle(dev, "nvidia,i2s-controller");
+		if (IS_ERR(np_i2s))
+			return PTR_ERR(np_i2s);
+
+		card->dai_link->cpus->of_node = np_i2s;
+		card->dai_link->codecs->of_node = np_codec;
+		card->dai_link->platforms->of_node = np_i2s;
+	}
 
 	if (asoc->add_common_controls) {
 		card->controls = tegra_machine_controls;
@@ -589,6 +627,7 @@  static struct snd_soc_card snd_soc_tegra_wm9712 = {
 static const struct tegra_asoc_data tegra_wm9712_data = {
 	.card = &snd_soc_tegra_wm9712,
 	.add_common_dapm_widgets = true,
+	.codec_dev_name = "wm9712-codec",
 	.set_ac97 = true,
 };
 
diff --git a/sound/soc/tegra/tegra_asoc_machine.h b/sound/soc/tegra/tegra_asoc_machine.h
index 8ee0ec814f67..d6a8d1320551 100644
--- a/sound/soc/tegra/tegra_asoc_machine.h
+++ b/sound/soc/tegra/tegra_asoc_machine.h
@@ -13,6 +13,7 @@  struct snd_soc_pcm_runtime;
 
 struct tegra_asoc_data {
 	unsigned int (*mclk_rate)(unsigned int srate);
+	const char *codec_dev_name;
 	struct snd_soc_card *card;
 	unsigned int mclk_id;
 	bool hp_jack_gpio_active_low;