linux-kernel - [PATCH] fpga: zynq: Remove clk_get error message for probe defer

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Date:   Wed, 12 Feb 2020 15:17:08 +0100
From:   Michal Simek <michal.simek@...inx.com>
To:     linux-kernel@...r.kernel.org, monstr@...str.eu,
        michal.simek@...inx.com, git@...inx.com
Cc:     Shubhrajyoti Datta <shubhrajyoti.datta@...inx.com>,
        Moritz Fischer <mdf@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-fpga@...r.kernel.org
Subject: [PATCH] fpga: zynq: Remove clk_get error message for probe defer

From: Shubhrajyoti Datta <shubhrajyoti.datta@...inx.com>

In probe, the driver checks for devm_clk_get return and print error
message in the failing case. However for -EPROBE_DEFER this message is
confusing so avoid it.

The similar change was done also by commit 28910cee898c
("fpga: xilinx-pr-decoupler: Remove clk_get error message for probe defer")

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@...inx.com>
Signed-off-by: Michal Simek <michal.simek@...inx.com>
---

 drivers/fpga/zynq-fpga.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/fpga/zynq-fpga.c b/drivers/fpga/zynq-fpga.c
index ee7765049607..07fa8d9ec675 100644
--- a/drivers/fpga/zynq-fpga.c
+++ b/drivers/fpga/zynq-fpga.c
@@ -583,7 +583,8 @@ static int zynq_fpga_probe(struct platform_device *pdev)
 
 	priv->clk = devm_clk_get(dev, "ref_clk");
 	if (IS_ERR(priv->clk)) {
-		dev_err(dev, "input clock not found\n");
+		if (PTR_ERR(priv->clk) != -EPROBE_DEFER)
+			dev_err(dev, "input clock not found\n");
 		return PTR_ERR(priv->clk);
 	}
 
-- 
2.25.0