El Fri, Aug 18, 2017 at 11:11:44AM +0800 Jeffy Chen ha dit: > Refactor rockchip_sound_probe, parse dai links from dts instead of > hard coding them. > > Signed-off-by: Jeffy Chen <[email protected]> > --- > > Changes in v4: None > Changes in v3: > Use compatible to match audio codecs > -- Suggested-by Matthias Kaehlcke <[email protected]> > > Changes in v2: > Let rockchip,codec-names be a required property, because we plan to > add more supported codecs to the fixed dai link list in the driver. > > sound/soc/rockchip/rk3399_gru_sound.c | 139 > ++++++++++++++++++++++------------ > 1 file changed, 91 insertions(+), 48 deletions(-)
Looks good to me, though I'm by no means an audio expert. On kevin the codecs are enumerated at boot. FWIW: Reviewed-by: Matthias Kaehlcke <[email protected]> Tested-by: Matthias Kaehlcke <[email protected]> > diff --git a/sound/soc/rockchip/rk3399_gru_sound.c > b/sound/soc/rockchip/rk3399_gru_sound.c > index 9b7e28703bfb..d532336871d7 100644 > --- a/sound/soc/rockchip/rk3399_gru_sound.c > +++ b/sound/soc/rockchip/rk3399_gru_sound.c > @@ -235,14 +235,42 @@ 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", > @@ -261,16 +289,6 @@ 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", > @@ -279,53 +297,78 @@ 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; > } > > 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[] = {
