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SubjectApplied "ASoC: stm32: i2s: improve error management on probe deferral" to the asoc tree
The patch

ASoC: stm32: i2s: improve error management on probe deferral

has been applied to the asoc tree at for-5.7

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
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From 04dd656e8d506c12f5e97a24089b2991f5f00984 Mon Sep 17 00:00:00 2001
From: Olivier Moysan <>
Date: Mon, 3 Feb 2020 11:08:14 +0100
Subject: [PATCH] ASoC: stm32: i2s: improve error management on probe deferral

Do not print an error trace when deferring probe for I2S driver.

Signed-off-by: Etienne Carriere <>
Signed-off-by: Olivier Moysan <>
Signed-off-by: Mark Brown <>
sound/soc/stm/stm32_i2s.c | 25 +++++++++++++++++++------
1 file changed, 19 insertions(+), 6 deletions(-)

diff --git a/sound/soc/stm/stm32_i2s.c b/sound/soc/stm/stm32_i2s.c
index cdcc00d9a67e..2478405727c3 100644
--- a/sound/soc/stm/stm32_i2s.c
+++ b/sound/soc/stm/stm32_i2s.c
@@ -831,25 +831,33 @@ static int stm32_i2s_parse_dt(struct platform_device *pdev,
/* Get clocks */
i2s->pclk = devm_clk_get(&pdev->dev, "pclk");
if (IS_ERR(i2s->pclk)) {
- dev_err(&pdev->dev, "Could not get pclk\n");
+ if (PTR_ERR(i2s->pclk) != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "Could not get pclk: %ld\n",
+ PTR_ERR(i2s->pclk));
return PTR_ERR(i2s->pclk);

i2s->i2sclk = devm_clk_get(&pdev->dev, "i2sclk");
if (IS_ERR(i2s->i2sclk)) {
- dev_err(&pdev->dev, "Could not get i2sclk\n");
+ if (PTR_ERR(i2s->i2sclk) != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "Could not get i2sclk: %ld\n",
+ PTR_ERR(i2s->i2sclk));
return PTR_ERR(i2s->i2sclk);

i2s->x8kclk = devm_clk_get(&pdev->dev, "x8k");
if (IS_ERR(i2s->x8kclk)) {
- dev_err(&pdev->dev, "missing x8k parent clock\n");
+ if (PTR_ERR(i2s->x8kclk) != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "Could not get x8k parent clock: %ld\n",
+ PTR_ERR(i2s->x8kclk));
return PTR_ERR(i2s->x8kclk);

i2s->x11kclk = devm_clk_get(&pdev->dev, "x11k");
if (IS_ERR(i2s->x11kclk)) {
- dev_err(&pdev->dev, "missing x11k parent clock\n");
+ if (PTR_ERR(i2s->x11kclk) != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "Could not get x11k parent clock: %ld\n",
+ PTR_ERR(i2s->x11kclk));
return PTR_ERR(i2s->x11kclk);

@@ -907,7 +915,9 @@ static int stm32_i2s_probe(struct platform_device *pdev)
i2s->regmap = devm_regmap_init_mmio_clk(&pdev->dev, "pclk",
i2s->base, i2s->regmap_conf);
if (IS_ERR(i2s->regmap)) {
- dev_err(&pdev->dev, "regmap init failed\n");
+ if (PTR_ERR(i2s->regmap) != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "Regmap init error %ld\n",
+ PTR_ERR(i2s->regmap));
return PTR_ERR(i2s->regmap);

@@ -918,8 +928,11 @@ static int stm32_i2s_probe(struct platform_device *pdev)

ret = devm_snd_dmaengine_pcm_register(&pdev->dev,
&stm32_i2s_pcm_config, 0);
- if (ret)
+ if (ret) {
+ if (ret != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "PCM DMA register error %d\n", ret);
return ret;
+ }

/* Set SPI/I2S in i2s mode */
ret = regmap_update_bits(i2s->regmap, STM32_I2S_CGFR_REG,
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