serial: sh-sci: Document remaining FIFO Control Register bits

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/sh-sci.h b/drivers/tty/serial/sh-sci.h
index 2bae842fb0fc0ae68b7b5749db6b36bbc386f1d4..1586d68470b6f0a24d41c801006c82bb1eefef38 100644 (file)
--- a/drivers/tty/serial/sh-sci.h
+++ b/drivers/tty/serial/sh-sci.h
@@ -65,9 +65,9 @@ enum {
 #define SCIF_DEFAULT_ERROR_MASK (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK)
 
 /* SCFCR (FIFO Control Register) */
-#define SCFCR_MCE      0x0008
-#define SCFCR_TFRST    0x0004
-#define SCFCR_RFRST    0x0002
+#define SCFCR_MCE      0x0008          /* Modem Control Enable */
+#define SCFCR_TFRST    0x0004          /* Transmit FIFO Data Register Reset */
+#define SCFCR_RFRST    0x0002          /* Receive FIFO Data Register Reset */
 #define SCFCR_LOOP     (1 << 0)        /* Loopback Test */
 
 /* SCSPTR (Serial Port Register), optional */