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Message-ID: <20200203100814.22944-4-olivier.moysan@st.com>
Date: Mon, 3 Feb 2020 11:08:11 +0100
From: Olivier Moysan <olivier.moysan@...com>
To: <lgirdwood@...il.com>, <broonie@...nel.org>, <perex@...ex.cz>,
<tiwai@...e.com>, <mcoquelin.stm32@...il.com>,
<alexandre.torgue@...com>, <alsa-devel@...a-project.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-stm32@...md-mailman.stormreply.com>,
<linux-kernel@...r.kernel.org>, <olivier.moysan@...com>
CC: Etienne Carriere <etienne.carriere@...com>
Subject: [PATCH 3/6] ASoC: stm32: i2s: manage error when getting reset controller
Return an error when the i2s driver fails to get a reset controller.
Also add an error trace, except on probe defer status.
Signed-off-by: Etienne Carriere <etienne.carriere@...com>
Signed-off-by: Olivier Moysan <olivier.moysan@...com>
---
sound/soc/stm/stm32_i2s.c | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/sound/soc/stm/stm32_i2s.c b/sound/soc/stm/stm32_i2s.c
index 3e7226a53e53..cdcc00d9a67e 100644
--- a/sound/soc/stm/stm32_i2s.c
+++ b/sound/soc/stm/stm32_i2s.c
@@ -866,12 +866,16 @@ static int stm32_i2s_parse_dt(struct platform_device *pdev,
}
/* Reset */
- rst = devm_reset_control_get_exclusive(&pdev->dev, NULL);
- if (!IS_ERR(rst)) {
- reset_control_assert(rst);
- udelay(2);
- reset_control_deassert(rst);
+ rst = devm_reset_control_get_optional_exclusive(&pdev->dev, NULL);
+ if (IS_ERR(rst)) {
+ if (PTR_ERR(rst) != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "Reset controller error %ld\n",
+ PTR_ERR(rst));
+ return PTR_ERR(rst);
}
+ reset_control_assert(rst);
+ udelay(2);
+ reset_control_deassert(rst);
return 0;
}
--
2.17.1
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