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SubjectApplied "ASoC: rockchip: Parse dai links from dts" to the asoc tree
Date
The patch

ASoC: rockchip: Parse dai links from dts

has been applied to the asoc tree at

git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git

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

From 0d52954ffe80b051ab79a105bd801485c4bbe20a Mon Sep 17 00:00:00 2001
From: Jeffy Chen <jeffy.chen@rock-chips.com>
Date: Thu, 24 Aug 2017 12:52:24 +0800
Subject: [PATCH] ASoC: rockchip: Parse dai links from dts

Refactor rockchip_sound_probe, parse dai links from dts instead of
hard coding them.

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Tested-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
sound/soc/rockchip/rk3399_gru_sound.c | 140 ++++++++++++++++++++++------------
1 file changed, 91 insertions(+), 49 deletions(-)

diff --git a/sound/soc/rockchip/rk3399_gru_sound.c b/sound/soc/rockchip/rk3399_gru_sound.c
index cd2fdba922f1..347c34d0db4c 100644
--- a/sound/soc/rockchip/rk3399_gru_sound.c
+++ b/sound/soc/rockchip/rk3399_gru_sound.c
@@ -240,14 +240,42 @@ static const struct snd_soc_ops rockchip_sound_da7219_ops = {
.hw_params = rockchip_sound_da7219_hw_params,
};

+static struct snd_soc_card rockchip_sound_card = {
+ .name = "rk3399-gru-sound",
+ .owner = THIS_MODULE,
+ .dapm_widgets = rockchip_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(rockchip_dapm_widgets),
+ .dapm_routes = rockchip_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(rockchip_dapm_routes),
+ .controls = rockchip_controls,
+ .num_controls = ARRAY_SIZE(rockchip_controls),
+};
+
enum {
+ DAILINK_DA7219,
DAILINK_MAX98357A,
DAILINK_RT5514,
- DAILINK_DA7219,
DAILINK_RT5514_DSP,
};

-static struct snd_soc_dai_link rockchip_dailinks[] = {
+static const char * const dailink_compat[] = {
+ [DAILINK_DA7219] = "dlg,da7219",
+ [DAILINK_MAX98357A] = "maxim,max98357a",
+ [DAILINK_RT5514] = "realtek,rt5514-i2c",
+ [DAILINK_RT5514_DSP] = "realtek,rt5514-spi",
+};
+
+static const struct snd_soc_dai_link rockchip_dais[] = {
+ [DAILINK_DA7219] = {
+ .name = "DA7219",
+ .stream_name = "DA7219 PCM",
+ .codec_dai_name = "da7219-hifi",
+ .init = rockchip_sound_da7219_init,
+ .ops = &rockchip_sound_da7219_ops,
+ /* set da7219 as slave */
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBS_CFS,
+ },
[DAILINK_MAX98357A] = {
.name = "MAX98357A",
.stream_name = "MAX98357A PCM",
@@ -266,16 +294,6 @@ static struct snd_soc_dai_link rockchip_dailinks[] = {
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS,
},
- [DAILINK_DA7219] = {
- .name = "DA7219",
- .stream_name = "DA7219 PCM",
- .codec_dai_name = "da7219-hifi",
- .init = rockchip_sound_da7219_init,
- .ops = &rockchip_sound_da7219_ops,
- /* set da7219 as slave */
- .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
- SND_SOC_DAIFMT_CBS_CFS,
- },
/* RT5514 DSP for voice wakeup via spi bus */
[DAILINK_RT5514_DSP] = {
.name = "RT5514 DSP",
@@ -284,42 +302,72 @@ static struct snd_soc_dai_link rockchip_dailinks[] = {
},
};

-static struct snd_soc_card rockchip_sound_card = {
- .name = "rk3399-gru-sound",
- .owner = THIS_MODULE,
- .dai_link = rockchip_dailinks,
- .num_links = ARRAY_SIZE(rockchip_dailinks),
- .dapm_widgets = rockchip_dapm_widgets,
- .num_dapm_widgets = ARRAY_SIZE(rockchip_dapm_widgets),
- .dapm_routes = rockchip_dapm_routes,
- .num_dapm_routes = ARRAY_SIZE(rockchip_dapm_routes),
- .controls = rockchip_controls,
- .num_controls = ARRAY_SIZE(rockchip_controls),
-};
-
-static int rockchip_sound_probe(struct platform_device *pdev)
+static int rockchip_sound_codec_node_match(struct device_node *np_codec)
{
- struct snd_soc_card *card = &rockchip_sound_card;
- struct device_node *cpu_node;
- int i, ret;
+ int i;

- cpu_node = of_parse_phandle(pdev->dev.of_node, "rockchip,cpu", 0);
- if (!cpu_node) {
- dev_err(&pdev->dev, "Property 'rockchip,cpu' missing or invalid\n");
- return -EINVAL;
+ for (i = 0; i < ARRAY_SIZE(dailink_compat); i++) {
+ if (of_device_is_compatible(np_codec, dailink_compat[i]))
+ return i;
}
+ return -1;
+}

- for (i = 0; i < ARRAY_SIZE(rockchip_dailinks); i++) {
- rockchip_dailinks[i].platform_of_node = cpu_node;
- rockchip_dailinks[i].cpu_of_node = cpu_node;
-
- rockchip_dailinks[i].codec_of_node =
- of_parse_phandle(pdev->dev.of_node, "rockchip,codec", i);
- if (!rockchip_dailinks[i].codec_of_node) {
- dev_err(&pdev->dev,
- "Property[%d] 'rockchip,codec' missing or invalid\n", i);
+static int rockchip_sound_of_parse_dais(struct device *dev,
+ struct snd_soc_card *card)
+{
+ struct device_node *np_cpu;
+ struct device_node *np_codec;
+ struct snd_soc_dai_link *dai;
+ int i, index;
+
+ card->dai_link = devm_kzalloc(dev, sizeof(rockchip_dais),
+ GFP_KERNEL);
+ if (!card->dai_link)
+ return -ENOMEM;
+
+ np_cpu = of_parse_phandle(dev->of_node, "rockchip,cpu", 0);
+
+ card->num_links = 0;
+ for (i = 0; i < ARRAY_SIZE(rockchip_dais); i++) {
+ np_codec = of_parse_phandle(dev->of_node,
+ "rockchip,codec", i);
+ if (!np_codec)
+ break;
+
+ if (!of_device_is_available(np_codec))
+ continue;
+
+ index = rockchip_sound_codec_node_match(np_codec);
+ if (index < 0)
+ continue;
+
+ if (!np_cpu) {
+ dev_err(dev, "Missing 'rockchip,cpu' for %s\n",
+ rockchip_dais[index].name);
return -EINVAL;
}
+
+ dai = &card->dai_link[card->num_links++];
+ *dai = rockchip_dais[index];
+
+ dai->codec_of_node = np_codec;
+ dai->platform_of_node = np_cpu;
+ dai->cpu_of_node = np_cpu;
+ }
+
+ return 0;
+}
+
+static int rockchip_sound_probe(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = &rockchip_sound_card;
+ int ret;
+
+ ret = rockchip_sound_of_parse_dais(&pdev->dev, card);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to parse dais: %d\n", ret);
+ return ret;
}

/* Set DMIC wakeup delay */
@@ -332,13 +380,7 @@ static int rockchip_sound_probe(struct platform_device *pdev)
}

card->dev = &pdev->dev;
-
- ret = devm_snd_soc_register_card(&pdev->dev, card);
- if (ret)
- dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
- __func__, ret);
-
- return ret;
+ return devm_snd_soc_register_card(&pdev->dev, card);
}

static const struct of_device_id rockchip_sound_of_match[] = {
--
2.13.2
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