From: Alexandre Courbot <acourbot@nvidia.com>
Date: Fri, 30 Sep 2016 08:37:00 +0000 (+0900)
Subject: serial: ns16550: Handle -ENOENT when requesting clock
X-Git-Url: http://git.dujemihanovic.xyz/img/static/gitweb.css?a=commitdiff_plain;h=ab895d6af224a427db4ffb70884588a2449be1c6;p=u-boot.git

serial: ns16550: Handle -ENOENT when requesting clock

When calling clk_get_by_index(), fall back to the legacy method of
getting the clock if -ENOENT is returned.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
---

diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c
index 765499dab6..29d547166b 100644
--- a/drivers/serial/ns16550.c
+++ b/drivers/serial/ns16550.c
@@ -408,7 +408,7 @@ int ns16550_serial_ofdata_to_platdata(struct udevice *dev)
 		err = clk_get_rate(&clk);
 		if (!IS_ERR_VALUE(err))
 			plat->clock = err;
-	} else if (err != -ENODEV && err != -ENOSYS) {
+	} else if (err != -ENOENT && err != -ENODEV && err != -ENOSYS) {
 		debug("ns16550 failed to get clock\n");
 		return err;
 	}