From ef5e90e8ccb7b715c0a1509339f730b2bf9698a2 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Fri, 3 Jun 2016 12:00:06 +0200 Subject: [PATCH] serial: sh-sci: Add more Serial Port Register documentation Improve documentation for the (H)SCIF Serial Port Register: - Make it clear the RTS and CTS lines are active-low, - Document the bits related to the serial port's clock pin. Signed-off-by: Geert Uytterhoeven Reviewed-by: Peter Hurley Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/sh-sci.h | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/tty/serial/sh-sci.h b/drivers/tty/serial/sh-sci.h index 7a4fa185b93e..85a2b81ba0a8 100644 --- a/drivers/tty/serial/sh-sci.h +++ b/drivers/tty/serial/sh-sci.h @@ -108,10 +108,12 @@ enum { #define SCLSR_ORER BIT(0) /* Overrun Error */ /* SCSPTR (Serial Port Register), optional */ -#define SCSPTR_RTSIO BIT(7) /* Serial Port RTS Pin Input/Output */ -#define SCSPTR_RTSDT BIT(6) /* Serial Port RTS Pin Data */ -#define SCSPTR_CTSIO BIT(5) /* Serial Port CTS Pin Input/Output */ -#define SCSPTR_CTSDT BIT(4) /* Serial Port CTS Pin Data */ +#define SCSPTR_RTSIO BIT(7) /* Serial Port RTS# Pin Input/Output */ +#define SCSPTR_RTSDT BIT(6) /* Serial Port RTS# Pin Data */ +#define SCSPTR_CTSIO BIT(5) /* Serial Port CTS# Pin Input/Output */ +#define SCSPTR_CTSDT BIT(4) /* Serial Port CTS# Pin Data */ +#define SCSPTR_SCKIO BIT(3) /* Serial Port Clock Pin Input/Output */ +#define SCSPTR_SCKDT BIT(2) /* Serial Port Clock Pin Data */ #define SCSPTR_SPB2IO BIT(1) /* Serial Port Break Input/Output */ #define SCSPTR_SPB2DT BIT(0) /* Serial Port Break Data */