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charset="utf-8" SG2044 relys on an internal divisor when calculating bitrate, which means a wrong clock for the most common bitrates. So add a quirk for this uart device to skip the set rate call and only relys on the internal UART divisor. Signed-off-by: Inochi Amaoto --- drivers/tty/serial/8250/8250_dw.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/82= 50_dw.c index ab9e7f204260..6b7c75670f29 100644 --- a/drivers/tty/serial/8250/8250_dw.c +++ b/drivers/tty/serial/8250/8250_dw.c @@ -750,6 +750,11 @@ static const struct dw8250_platform_data dw8250_renesa= s_rzn1_data =3D { .quirks =3D DW_UART_QUIRK_CPR_VALUE | DW_UART_QUIRK_IS_DMA_FC, }; =20 +static const struct dw8250_platform_data dw8250_sophgo_sg2044_data =3D { + .usr_reg =3D DW_UART_USR, + .quirks =3D DW_UART_QUIRK_SKIP_SET_RATE, +}; + static const struct dw8250_platform_data dw8250_starfive_jh7100_data =3D { .usr_reg =3D DW_UART_USR, .quirks =3D DW_UART_QUIRK_SKIP_SET_RATE, @@ -760,6 +765,7 @@ static const struct of_device_id dw8250_of_match[] =3D { { .compatible =3D "cavium,octeon-3860-uart", .data =3D &dw8250_octeon_386= 0_data }, { .compatible =3D "marvell,armada-38x-uart", .data =3D &dw8250_armada_38x= _data }, { .compatible =3D "renesas,rzn1-uart", .data =3D &dw8250_renesas_rzn1_dat= a }, + { .compatible =3D "sophgo,sg2044-uart", .data =3D &dw8250_sophgo_sg2044_d= ata }, { .compatible =3D "starfive,jh7100-uart", .data =3D &dw8250_starfive_jh71= 00_data }, { /* Sentinel */ } }; --=20 2.47.0