linux-kernel - [PATCH v9 3/7] ASoC: fsl-asoc-card: Support new property fsl,asrc-format

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Message-Id: <02f53d5512b9acd3492e2acdd5e0ba3113f18009.1587038908.git.shengjiu.wang@nxp.com>
Date:   Thu, 16 Apr 2020 20:25:33 +0800
From:   Shengjiu Wang <shengjiu.wang@....com>
To:     timur@...nel.org, nicoleotsuka@...il.com, Xiubo.Lee@...il.com,
        festevam@...il.com, broonie@...nel.org,
        alsa-devel@...a-project.org, lgirdwood@...il.com, perex@...ex.cz,
        tiwai@...e.com, robh+dt@...nel.org, mark.rutland@....com,
        devicetree@...r.kernel.org
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: [PATCH v9 3/7] ASoC: fsl-asoc-card: Support new property fsl,asrc-format

In order to align with new ESARC, we add new property fsl,asrc-format.
The fsl,asrc-format can replace the fsl,asrc-width, driver
can accept format from devicetree, don't need to convert it to
format through width.

Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
Acked-by: Nicolin Chen <nicoleotsuka@...il.com>
---
 sound/soc/fsl/fsl-asoc-card.c | 24 +++++++++++++++---------
 1 file changed, 15 insertions(+), 9 deletions(-)

diff --git a/sound/soc/fsl/fsl-asoc-card.c b/sound/soc/fsl/fsl-asoc-card.c
index bb33601fab84..cf4feb835743 100644
--- a/sound/soc/fsl/fsl-asoc-card.c
+++ b/sound/soc/fsl/fsl-asoc-card.c
@@ -680,17 +680,23 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
 			goto asrc_fail;
 		}
 
-		ret = of_property_read_u32(asrc_np, "fsl,asrc-width", &width);
+		ret = of_property_read_u32(asrc_np, "fsl,asrc-format",
+					   &priv->asrc_format);
 		if (ret) {
-			dev_err(&pdev->dev, "failed to get output rate\n");
-			ret = -EINVAL;
-			goto asrc_fail;
-		}
+			/* Fallback to old binding; translate to asrc_format */
+			ret = of_property_read_u32(asrc_np, "fsl,asrc-width",
+						   &width);
+			if (ret) {
+				dev_err(&pdev->dev,
+					"failed to decide output format\n");
+				goto asrc_fail;
+			}
 
-		if (width == 24)
-			priv->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
-		else
-			priv->asrc_format = SNDRV_PCM_FORMAT_S16_LE;
+			if (width == 24)
+				priv->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
+			else
+				priv->asrc_format = SNDRV_PCM_FORMAT_S16_LE;
+		}
 	}
 
 	/* Finish card registering */
-- 
2.21.0