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| author | Biju Das <biju.das.jz@bp.renesas.com> | 2023-02-27 11:41:46 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-22 13:27:12 +0100 |
| commit | 1715b382e230a0d13ea4fa4cfa017956426d5566 (patch) | |
| tree | fc2bde1af3f422ee8c02fe33c88eaf555145c191 /drivers/tty | |
| parent | 2c04adc4f07a2528040c7546a852d84f9f4735b1 (diff) | |
| download | linux-stable-1715b382e230a0d13ea4fa4cfa017956426d5566.tar.gz linux-stable-1715b382e230a0d13ea4fa4cfa017956426d5566.tar.bz2 linux-stable-1715b382e230a0d13ea4fa4cfa017956426d5566.zip | |
serial: 8250_em: Fix UART port type
commit 32e293be736b853f168cd065d9cbc1b0c69f545d upstream.
As per HW manual for EMEV2 "R19UH0040EJ0400 Rev.4.00", the UART
IP found on EMMA mobile SoC is Register-compatible with the
general-purpose 16750 UART chip. Fix UART port type as 16750 and
enable 64-bytes fifo support.
Fixes: 22886ee96895 ("serial8250-em: Emma Mobile UART driver V2")
Cc: stable@vger.kernel.org
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20230227114152.22265-2-biju.das.jz@bp.renesas.com
[biju: manually fixed the conflicts]
Signed-off-by: Biju Das <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_em.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/tty/serial/8250/8250_em.c b/drivers/tty/serial/8250/8250_em.c index 2a76e22d2ec0..5670c8a267d8 100644 --- a/drivers/tty/serial/8250/8250_em.c +++ b/drivers/tty/serial/8250/8250_em.c @@ -102,8 +102,8 @@ static int serial8250_em_probe(struct platform_device *pdev) memset(&up, 0, sizeof(up)); up.port.mapbase = regs->start; up.port.irq = irq->start; - up.port.type = PORT_UNKNOWN; - up.port.flags = UPF_BOOT_AUTOCONF | UPF_FIXED_PORT | UPF_IOREMAP; + up.port.type = PORT_16750; + up.port.flags = UPF_FIXED_PORT | UPF_IOREMAP | UPF_FIXED_TYPE; up.port.dev = &pdev->dev; up.port.private_data = priv; |