From: Patrice Chotard <patrice.chot...@st.com>

Since dtc v1.4.6-9-gaadd0b65c987, aliases property name
must include only lowercase and '-'.

After having updated all STi boards serial aliases from "ttyASN"
to "serialN", st-asc driver need to be updated accordingly as tty
aliases id is retrieved using of_alias_get_id().

Signed-off-by: Patrice Chotard <patrice.chot...@st.com>
Reviewed-by: Rob Herring <r...@kernel.org>
---

v4: _ add Reviewed-by
v3: _ update st-asc driver with "serial" alias prefix and keep "ttyAS" in 
second choice
v2: _ update st-asc driver with "serial" alias prefix

 drivers/tty/serial/st-asc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/st-asc.c b/drivers/tty/serial/st-asc.c
index c763253514e9..5f9f01fac6dd 100644
--- a/drivers/tty/serial/st-asc.c
+++ b/drivers/tty/serial/st-asc.c
@@ -782,7 +782,9 @@ static struct asc_port *asc_of_get_asc_port(struct 
platform_device *pdev)
        if (!np)
                return NULL;
 
-       id = of_alias_get_id(np, ASC_SERIAL_NAME);
+       id = of_alias_get_id(np, "serial");
+       if (id < 0)
+               id = of_alias_get_id(np, ASC_SERIAL_NAME);
 
        if (id < 0)
                id = 0;
-- 
1.9.1

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