[PATCH 3/4] ASoC: fsl-asoc-card: Add optional dt property for setting mclk-id
From: Ariel D'Alessandro <hidden>
Date: 2021-12-03 13:50:10
Also in:
alsa-devel, linux-omap, linuxppc-dev, lkml
Subsystem:
freescale soc sound drivers, open firmware and flattened device tree bindings, sound, sound - soc layer / dynamic audio power management (asoc), the rest · Maintainers:
Shengjiu Wang, Xiubo Li, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Jaroslav Kysela, Takashi Iwai, Liam Girdwood, Mark Brown, Linus Torvalds
Sound cards may allow using different main clock inputs. In the generic fsl-asoc-card driver, these values are hardcoded for each specific card configuration. Let's make it more flexible, allowing setting mclk-id from the device-tree node. Otherwise, the default value for each card configuration is used. Signed-off-by: Ariel D'Alessandro <redacted> --- Documentation/devicetree/bindings/sound/fsl-asoc-card.txt | 1 + sound/soc/fsl/fsl-asoc-card.c | 6 ++++++ 2 files changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/sound/fsl-asoc-card.txt b/Documentation/devicetree/bindings/sound/fsl-asoc-card.txt
index 23d83fa7609f..b219626a5403 100644
--- a/Documentation/devicetree/bindings/sound/fsl-asoc-card.txt
+++ b/Documentation/devicetree/bindings/sound/fsl-asoc-card.txt@@ -82,6 +82,7 @@ Optional properties: - dai-format : audio format, for details see simple-card.yaml. - frame-inversion : dai-link uses frame clock inversion, for details see simple-card.yaml. - bitclock-inversion : dai-link uses bit clock inversion, for details see simple-card.yaml. + - mclk-id : main clock id, specific for each card configuration. Optional unless SSI is selected as a CPU DAI:
diff --git a/sound/soc/fsl/fsl-asoc-card.c b/sound/soc/fsl/fsl-asoc-card.c
index 90cbed496f98..bb962e04d40b 100644
--- a/sound/soc/fsl/fsl-asoc-card.c
+++ b/sound/soc/fsl/fsl-asoc-card.c@@ -693,6 +693,12 @@ static int fsl_asoc_card_probe(struct platform_device *pdev) goto asrc_fail; } + /* + * Allow setting mclk-id from the device-tree node. Otherwise, the + * default value for each card configuration is used. + */ + of_property_read_u32(np, "mclk-id", &priv->codec_priv.mclk_id); + /* Format info from DT is optional. */ snd_soc_daifmt_parse_clock_provider_as_phandle(np, NULL, &bitclkprovider, &frameprovider); if (bitclkprovider || frameprovider) {
--
2.30.2