From daea65a7be76953bb80d13d0ac43e7441fd42cdf Mon Sep 17 00:00:00 2001
From: Daniel Thompson <daniel.thompson@linaro.org>
Date: Tue, 23 Sep 2014 08:31:30 +0100
Subject: serial: asc: Conditionally use readl_relaxed (COMPILE_TEST)

Commit 08177ece596c ("serial: asc: Adopt readl_/writel_relaxed()) is
regressing the m68k allmodconfig build. This is due to the unconditional
use of readl_relaxed() which, although documented, does not currently
exist for m68k.

This is trivially fixable for st-asc because we can just update the
asc_in() accessor to make this conditional.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Srinivas Kandagatla <srinivas.kandagatla@gmail.com>
Cc: Maxime Coquelin <maxime.coquelin@st.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/st-asc.c b/drivers/tty/serial/st-asc.c
index a3fc167..a316584 100644
--- a/drivers/tty/serial/st-asc.c
+++ b/drivers/tty/serial/st-asc.c
@@ -151,7 +151,11 @@ static inline struct asc_port *to_asc_port(struct uart_port *port)
 
 static inline u32 asc_in(struct uart_port *port, u32 offset)
 {
+#ifdef readl_relaxed
 	return readl_relaxed(port->membase + offset);
+#else
+	return readl(port->membase + offset);
+#endif
 }
 
 static inline void asc_out(struct uart_port *port, u32 offset, u32 value)
-- 
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