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

Signed-off-by: Jeffy Chen jeffy.chen@rock-chips.com ---

sound/soc/rockchip/rk3399_gru_sound.c | 129 ++++++++++++++++++++++------------ 1 file changed, 86 insertions(+), 43 deletions(-)

diff --git a/sound/soc/rockchip/rk3399_gru_sound.c b/sound/soc/rockchip/rk3399_gru_sound.c index 3475c61..c2bc675 100644 --- a/sound/soc/rockchip/rk3399_gru_sound.c +++ b/sound/soc/rockchip/rk3399_gru_sound.c @@ -247,9 +247,7 @@ enum { DAILINK_RT5514_DSP, };

-#define DAILINK_ENTITIES (DAILINK_DA7219 + 1) - -static struct snd_soc_dai_link rockchip_dailinks[] = { +static const struct snd_soc_dai_link rockchip_dais[] = { [DAILINK_MAX98357A] = { .name = "MAX98357A", .stream_name = "MAX98357A PCM", @@ -290,8 +288,6 @@ 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, @@ -305,71 +301,118 @@ static int rockchip_sound_match_stub(struct device *dev, void *data) return 1; }

-static int rockchip_sound_probe(struct platform_device *pdev) +static int rockchip_sound_of_parse_dais(struct device *dev, + struct snd_soc_card *card) { - struct snd_soc_card *card = &rockchip_sound_card; + struct device *rt5514_dev; + struct device_driver *rt5514_drv; struct device_node *cpu_node; - struct device *dev; - struct device_driver *drv; - int i, ret; - - 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; - } + struct device_node *np_codec; + struct snd_soc_dai_link *dai; + bool has_rt5514 = false, legacy; + int i, index, ret; + + card->dai_link = devm_kzalloc(dev, sizeof(rockchip_dais), + GFP_KERNEL); + if (!card->dai_link) + return -ENOMEM; + + cpu_node = of_parse_phandle(dev->of_node, "rockchip,cpu", 0); + + legacy = !of_get_property(dev->of_node, "rockchip,codec-names", NULL); + + card->num_links = 0; + for (i = 0; i < DAILINK_RT5514_DSP; i++) { + if (!legacy) { + index = of_property_match_string(dev->of_node, + "rockchip,codec-names", + rockchip_dais[i].name); + if (index < 0) + continue; + } else { + index = i; + }

- for (i = 0; i < DAILINK_ENTITIES; i++) { - rockchip_dailinks[i].platform_of_node = cpu_node; - rockchip_dailinks[i].cpu_of_node = cpu_node; + np_codec = of_parse_phandle(dev->of_node, + "rockchip,codec", index); + if (!np_codec) { + dev_err(dev, "Missing 'rockchip,codec' for %s\n", + rockchip_dais[i].name); + return -EINVAL; + } + if (!of_device_is_available(np_codec)) + continue;

- 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); + if (!cpu_node) { + dev_err(dev, "Missing 'rockchip,cpu' for %s\n", + rockchip_dais[i].name); return -EINVAL; } + + dai = &card->dai_link[card->num_links++]; + *dai = rockchip_dais[i]; + + dai->codec_of_node = np_codec; + dai->platform_of_node = cpu_node; + dai->cpu_of_node = cpu_node; + + if (i == DAILINK_RT5514) + has_rt5514 = true; }

+ if (!legacy && !has_rt5514) + return 0; + /** * To acquire the spi driver of the rt5514 and set the dai-links names * for soc_bind_dai_link */ - drv = driver_find("rt5514", &spi_bus_type); - if (!drv) { - dev_err(&pdev->dev, "Can not find the rt5514 driver at the spi bus\n"); + rt5514_drv = driver_find("rt5514", &spi_bus_type); + if (!rt5514_drv) { + dev_err(dev, "Can not find the rt5514 driver at the spi bus\n"); return -EINVAL; }

- dev = driver_find_device(drv, NULL, NULL, rockchip_sound_match_stub); - if (!dev) { - dev_err(&pdev->dev, "Can not find the rt5514 device\n"); + rt5514_dev = driver_find_device(rt5514_drv, NULL, NULL, + rockchip_sound_match_stub); + if (!rt5514_dev) { + dev_err(dev, "Can not find the rt5514 device\n"); return -ENODEV; }

/* Set DMIC delay */ - ret = device_property_read_u32(&pdev->dev, "dmic-delay", - &rt5514_dmic_delay); - if (ret) { + ret = device_property_read_u32(dev, "dmic-delay", &rt5514_dmic_delay); + if (ret < 0) { rt5514_dmic_delay = 0; - dev_dbg(&pdev->dev, + dev_dbg(dev, "no optional property 'dmic-delay' found, default: no delay\n"); }

- rockchip_dailinks[DAILINK_RT5514_DSP].cpu_name = kstrdup_const(dev_name(dev), GFP_KERNEL); - rockchip_dailinks[DAILINK_RT5514_DSP].cpu_dai_name = kstrdup_const(dev_name(dev), GFP_KERNEL); - rockchip_dailinks[DAILINK_RT5514_DSP].platform_name = kstrdup_const(dev_name(dev), GFP_KERNEL); + dai = &card->dai_link[card->num_links++]; + *dai = rockchip_dais[DAILINK_RT5514_DSP]; + + dai->cpu_name = devm_kstrdup(dev, dev_name(rt5514_dev), GFP_KERNEL); + dai->cpu_dai_name = dai->cpu_name; + dai->platform_name = dai->cpu_name; + + 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; + }

card->dev = &pdev->dev; platform_set_drvdata(pdev, card);

- 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[] = {