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| author | Biju Das <biju.das.jz@bp.renesas.com> | 2022-06-30 09:39:09 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-30 17:19:11 +0200 |
| commit | b941e487152e0909ef43faacae6eeee266d9b378 (patch) | |
| tree | 24a28f70573c14e0183bd63ab58fe7a9198be57b /drivers/tty | |
| parent | 39cdb68c64d84e71a4a717000b6e5de208ee60cc (diff) | |
| download | linux-b941e487152e0909ef43faacae6eeee266d9b378.tar.bz2 | |
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: aa63d786cea2 ("serial: 8250: dw: Add support for DMA flow controlling devices")
Reviewed-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Biju 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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/8250/8250_dw.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c index b1ab088fbe6e..bb6aca07ab56 100644 --- a/drivers/tty/serial/8250/8250_dw.c +++ b/drivers/tty/serial/8250/8250_dw.c @@ -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 */ |