MediaTek platforms are typically setting PCM rate and channels constraints for playback, capture and HDMI/DisplayPort playback: commonize the startup callback by adding the PCM constraints data to the mtk_platform_card_data structure and by reusing the common mtk_soundcard_startup() function for all of them by getting back the parameters from the aforementioned struct.
Reviewed-by: Alexandre Mergnat amergnat@baylibre.com Signed-off-by: AngeloGioacchino Del Regno angelogioacchino.delregno@collabora.com --- .../mediatek/common/mtk-soundcard-driver.c | 51 +++++++++++++++++++ .../mediatek/common/mtk-soundcard-driver.h | 24 +++++++++ 2 files changed, 75 insertions(+)
diff --git a/sound/soc/mediatek/common/mtk-soundcard-driver.c b/sound/soc/mediatek/common/mtk-soundcard-driver.c index b1db17e392d5..3bbf42c42805 100644 --- a/sound/soc/mediatek/common/mtk-soundcard-driver.c +++ b/sound/soc/mediatek/common/mtk-soundcard-driver.c @@ -139,6 +139,57 @@ void clean_card_reference(struct snd_soc_card *card) } EXPORT_SYMBOL_GPL(clean_card_reference);
+int mtk_soundcard_startup(struct snd_pcm_substream *substream, + enum mtk_pcm_constraint_type ctype) +{ + struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); + struct mtk_soc_card_data *soc_card = snd_soc_card_get_drvdata(rtd->card); + const struct mtk_pcm_constraints_data *mpc = &soc_card->card_data->pcm_constraints[ctype]; + int ret; + + if (unlikely(!mpc)) + return -EINVAL; + + ret = snd_pcm_hw_constraint_list(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, + mpc->rates); + if (ret < 0) { + dev_err(rtd->dev, "hw_constraint_list rate failed\n"); + return ret; + } + + ret = snd_pcm_hw_constraint_list(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_CHANNELS, + mpc->channels); + if (ret < 0) { + dev_err(rtd->dev, "hw_constraint_list channel failed\n"); + return ret; + } + + return 0; +} +EXPORT_SYMBOL_GPL(mtk_soundcard_startup); + +static int mtk_soundcard_playback_startup(struct snd_pcm_substream *substream) +{ + return mtk_soundcard_startup(substream, MTK_CONSTRAINT_PLAYBACK); +} + +const struct snd_soc_ops mtk_soundcard_common_playback_ops = { + .startup = mtk_soundcard_playback_startup, +}; +EXPORT_SYMBOL_GPL(mtk_soundcard_common_playback_ops); + +static int mtk_soundcard_capture_startup(struct snd_pcm_substream *substream) +{ + return mtk_soundcard_startup(substream, MTK_CONSTRAINT_CAPTURE); +} + +const struct snd_soc_ops mtk_soundcard_common_capture_ops = { + .startup = mtk_soundcard_capture_startup, +}; +EXPORT_SYMBOL_GPL(mtk_soundcard_common_capture_ops); + int mtk_soundcard_common_probe(struct platform_device *pdev) { struct device_node *platform_node, *adsp_node; diff --git a/sound/soc/mediatek/common/mtk-soundcard-driver.h b/sound/soc/mediatek/common/mtk-soundcard-driver.h index 4fd2ffb7e486..f6c275b54025 100644 --- a/sound/soc/mediatek/common/mtk-soundcard-driver.h +++ b/sound/soc/mediatek/common/mtk-soundcard-driver.h @@ -11,11 +11,26 @@
struct mtk_sof_priv; struct mtk_soc_card_data; +struct snd_pcm_hw_constraint_list; + +enum mtk_pcm_constraint_type { + MTK_CONSTRAINT_PLAYBACK, + MTK_CONSTRAINT_CAPTURE, + MTK_CONSTRAINT_HDMIDP, + MTK_CONSTRAINT_MAX +}; + +struct mtk_pcm_constraints_data { + const struct snd_pcm_hw_constraint_list *channels; + const struct snd_pcm_hw_constraint_list *rates; +};
struct mtk_platform_card_data { struct snd_soc_card *card; struct snd_soc_jack *jacks; + const struct mtk_pcm_constraints_data *pcm_constraints; u8 num_jacks; + u8 num_pcm_constraints; u8 flags; };
@@ -23,9 +38,18 @@ struct mtk_soundcard_pdata { const char *card_name; struct mtk_platform_card_data *card_data; const struct mtk_sof_priv *sof_priv; + int (*soc_probe)(struct mtk_soc_card_data *card_data, bool legacy); };
+/* Common playback/capture card startup ops */ +extern const struct snd_soc_ops mtk_soundcard_common_playback_ops; +extern const struct snd_soc_ops mtk_soundcard_common_capture_ops; + +/* Exported for custom/extended soundcard startup ops */ +int mtk_soundcard_startup(struct snd_pcm_substream *substream, + enum mtk_pcm_constraint_type ctype); + int parse_dai_link_info(struct snd_soc_card *card); void clean_card_reference(struct snd_soc_card *card); int mtk_soundcard_common_probe(struct platform_device *pdev);