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-rw-r--r--include/linux/serial_core.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 35aa87b96b71..e03d6ba5e5b4 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -145,7 +145,7 @@ struct uart_port {
#define UPIO_PORT (SERIAL_IO_PORT) /* 8b I/O port access */
#define UPIO_HUB6 (SERIAL_IO_HUB6) /* Hub6 ISA card */
-#define UPIO_MEM (SERIAL_IO_MEM) /* 8b MMIO access */
+#define UPIO_MEM (SERIAL_IO_MEM) /* driver-specific */
#define UPIO_MEM32 (SERIAL_IO_MEM32) /* 32b little endian */
#define UPIO_AU (SERIAL_IO_AU) /* Au1x00 and RT288x type IO */
#define UPIO_TSI (SERIAL_IO_TSI) /* Tsi108/109 type IO */