Commit b941e487 authored by Biju Das's avatar Biju Das Committed by Greg Kroah-Hartman
Browse files

serial: 8250: dw: Fix the macro RZN1_UART_xDMACR_8_WORD_BURST 



As per RZ/N1 peripheral user manual(r01uh0752ej0100-rzn1-peripheral.pdf)
rev 1.0.0 Mar,2019, the value for 8_WORD_BURST is 4(b2,b1=2’b10).

This patch fixes the macro as per the user manual.

Fixes: aa63d786 ("serial: 8250: dw: Add support for DMA flow controlling devices")
Reviewed-by: default avatarPhil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: default avatarBiju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20220630083909.4294-1-biju.das.jz@bp.renesas.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 39cdb68c

drivers/tty/serial/8250/8250_dw.c

+1 −1
Original line number Diff line number Diff line
@@ -47,7 +47,7 @@ 
#define RZN1_UART_xDMACR_DMA_EN		BIT(0)

#define RZN1_UART_xDMACR_1_WORD_BURST	(0 << 1)

#define RZN1_UART_xDMACR_4_WORD_BURST	(1 << 1)

#define RZN1_UART_xDMACR_8_WORD_BURST	(3 << 1)

#define RZN1_UART_xDMACR_8_WORD_BURST	(2 << 1)

#define RZN1_UART_xDMACR_BLK_SZ(x)	((x) << 3)



/* Quirks */