linux-kernel - [PATCH] remoteproc: stm32: don't print an error on probe deferral

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Date:   Wed, 9 Dec 2020 14:12:14 +0100
From:   Arnaud Pouliquen <arnaud.pouliquen@...s.st.com>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Ohad Ben-Cohen <ohad@...ery.com>,
        Mathieu Poirier <mathieu.poirier@...aro.org>
CC:     <linux-remoteproc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <arnaud.pouliquen@...s.st.com>,
        Etienne Carriere <etienne.carriere@...com>
Subject: [PATCH] remoteproc: stm32: don't print an error on probe deferral

From: Etienne Carriere <etienne.carriere@...com>

Change stm32 remoteproc driver to not generate an error message
when device probe operation is deferred for the reset controller.

Signed-off-by: Etienne Carriere <etienne.carriere@...com>
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@...s.st.com>
---
 drivers/remoteproc/stm32_rproc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/remoteproc/stm32_rproc.c b/drivers/remoteproc/stm32_rproc.c
index a180aeae9675..25c916782991 100644
--- a/drivers/remoteproc/stm32_rproc.c
+++ b/drivers/remoteproc/stm32_rproc.c
@@ -614,7 +614,9 @@ static int stm32_rproc_parse_dt(struct platform_device *pdev,
 
 	ddata->rst = devm_reset_control_get_by_index(dev, 0);
 	if (IS_ERR(ddata->rst)) {
-		dev_err(dev, "failed to get mcu reset\n");
+		if (PTR_ERR(ddata->rst) != -EPROBE_DEFER)
+			dev_err(dev, "failed to get mcu reset\n");
+
 		return PTR_ERR(ddata->rst);
 	}
 
-- 
2.17.1