lkml.org 
[lkml]   [2021]   [Dec]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 3/4] ASoC: fsl-asoc-card: Add optional dt property for setting mclk-id
Date
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 <ariel.dalessandro@collabora.com>
---
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
\
 
 \ /
  Last update: 2021-12-03 14:50    [W:0.068 / U:2.040 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site