From 87bb008c77a326855def246bf877e651d1fa74aa Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Wed, 5 Jun 2019 10:51:42 +0200
Subject: [PATCH] tty: serial: 8250-of: Do not warn on deferred probe
Deferred probe is an expected return value for clk_get() on many
platforms. The driver deals with it properly, so there's no need
to output a warning that may potentially confuse users.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/tty/serial/8250/8250_of.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/tty/serial/8250/8250_of.c b/drivers/tty/serial/8250/8250_of.c
index 1308b3d1e17a2..0826cfdbd4063 100644
--- a/drivers/tty/serial/8250/8250_of.c
+++ b/drivers/tty/serial/8250/8250_of.c
@@ -70,9 +70,10 @@ static int of_platform_serial_setup(struct platform_device *ofdev,
/* Get clk rate through clk driver if present */
info->clk = devm_clk_get(&ofdev->dev, NULL);
if (IS_ERR(info->clk)) {
- dev_warn(&ofdev->dev,
- "clk or clock-frequency not defined\n");
ret = PTR_ERR(info->clk);
+ if (ret != -EPROBE_DEFER)
+ dev_warn(&ofdev->dev,
+ "failed to get clock: %d\n", ret);
goto err_pmruntime;
}
--
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