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Diffstat (limited to 'drivers/tty/serial')
-rw-r--r--drivers/tty/serial/st-asc.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/tty/serial/st-asc.c b/drivers/tty/serial/st-asc.c
index 8b2d7356611d..a3fc1678d2b9 100644
--- a/drivers/tty/serial/st-asc.c
+++ b/drivers/tty/serial/st-asc.c
@@ -151,12 +151,16 @@ static inline struct asc_port *to_asc_port(struct uart_port *port)
 
 static inline u32 asc_in(struct uart_port *port, u32 offset)
 {
-	return readl(port->membase + offset);
+	return readl_relaxed(port->membase + offset);
 }
 
 static inline void asc_out(struct uart_port *port, u32 offset, u32 value)
 {
+#ifdef writel_relaxed
+	writel_relaxed(value, port->membase + offset);
+#else
 	writel(value, port->membase + offset);
+#endif
 }
 
 /*