diff options
| author | Srinivas Kandagatla <srinivas.kandagatla@linaro.org> | 2020-03-11 21:04:21 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-03-12 15:55:38 +0300 |
| commit | 9b60441692d94effcd37a141035c6106a91ddf8c (patch) | |
| tree | 86293a88132a51082d77e98acda8866fc6dd3e24 /sound/soc/qcom | |
| parent | 7693cadac86548b30389a6e11d78c38db654f393 (diff) | |
| download | linux-9b60441692d94effcd37a141035c6106a91ddf8c.tar.xz | |
ASoC: qdsp6: q6asm-dai: only enable dais from device tree
Existing code enables all the playback and capture dais even
if there is no device tree entry. This can lead to
un-necessary dais in the system which will never be used.
So honour whats specfied in device tree.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20200311180422.28363-2-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/qcom')
| -rw-r--r-- | sound/soc/qcom/qdsp6/q6asm-dai.c | 30 |
1 files changed, 23 insertions, 7 deletions
diff --git a/sound/soc/qcom/qdsp6/q6asm-dai.c b/sound/soc/qcom/qdsp6/q6asm-dai.c index c0d422d0ab94..8b48815ff918 100644 --- a/sound/soc/qcom/qdsp6/q6asm-dai.c +++ b/sound/soc/qcom/qdsp6/q6asm-dai.c @@ -69,6 +69,8 @@ struct q6asm_dai_rtd { }; struct q6asm_dai_data { + struct snd_soc_dai_driver *dais; + int num_dais; long long int sid; }; @@ -889,7 +891,7 @@ static const struct snd_soc_component_driver q6asm_fe_dai_component = { .compr_ops = &q6asm_dai_compr_ops, }; -static struct snd_soc_dai_driver q6asm_fe_dais[] = { +static struct snd_soc_dai_driver q6asm_fe_dais_template[] = { Q6ASM_FEDAI_DRIVER(1), Q6ASM_FEDAI_DRIVER(2), Q6ASM_FEDAI_DRIVER(3), @@ -903,10 +905,22 @@ static struct snd_soc_dai_driver q6asm_fe_dais[] = { static int of_q6asm_parse_dai_data(struct device *dev, struct q6asm_dai_data *pdata) { - static struct snd_soc_dai_driver *dai_drv; + struct snd_soc_dai_driver *dai_drv; struct snd_soc_pcm_stream empty_stream; struct device_node *node; - int ret, id, dir; + int ret, id, dir, idx = 0; + + + pdata->num_dais = of_get_child_count(dev->of_node); + if (!pdata->num_dais) { + dev_err(dev, "No dais found in DT\n"); + return -EINVAL; + } + + pdata->dais = devm_kcalloc(dev, pdata->num_dais, sizeof(*dai_drv), + GFP_KERNEL); + if (!pdata->dais) + return -ENOMEM; memset(&empty_stream, 0, sizeof(empty_stream)); @@ -917,7 +931,8 @@ static int of_q6asm_parse_dai_data(struct device *dev, continue; } - dai_drv = &q6asm_fe_dais[id]; + dai_drv = &pdata->dais[idx++]; + *dai_drv = q6asm_fe_dais_template[id]; ret = of_property_read_u32(node, "direction", &dir); if (ret) @@ -955,11 +970,12 @@ static int q6asm_dai_probe(struct platform_device *pdev) dev_set_drvdata(dev, pdata); - of_q6asm_parse_dai_data(dev, pdata); + rc = of_q6asm_parse_dai_data(dev, pdata); + if (rc) + return rc; return devm_snd_soc_register_component(dev, &q6asm_fe_dai_component, - q6asm_fe_dais, - ARRAY_SIZE(q6asm_fe_dais)); + pdata->dais, pdata->num_dais); } static const struct of_device_id q6asm_dai_device_id[] = { |