diff options
| author | Hugo Villeneuve <hvilleneuve@dimonoff.com> | 2023-08-03 17:05:51 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-08-04 16:07:04 +0300 |
| commit | 5666280f88a7594ba0413247fd2cc18281e8e580 (patch) | |
| tree | 262ed3979bc67ab1ef8f01948b5533e66c261d2e /drivers/tty/serial/max310x.c | |
| parent | 67c37756898a5a6b2941a13ae7260c89b54e0d88 (diff) | |
| download | linux-5666280f88a7594ba0413247fd2cc18281e8e580.tar.xz | |
serial: max310x: add comments for membase address workaround
Add comments about workaround used to configure membase address. This
follows suggestions made during review of a sc16is7xx driver patch to
add the same workaround.
Link: https://lore.kernel.org/lkml/2936e18f-44ea-faed-9fa0-2ddefe7c3194@linux.intel.com
Link: https://lore.kernel.org/lkml/20230801131655.80bd8f97f018dda6155d65f6@hugovil.com/
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Link: https://lore.kernel.org/r/20230803140551.970141-1-hugo@hugovil.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/max310x.c')
| -rw-r--r-- | drivers/tty/serial/max310x.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c index 416d553b73a7..5903dd033fd0 100644 --- a/drivers/tty/serial/max310x.c +++ b/drivers/tty/serial/max310x.c @@ -1369,6 +1369,11 @@ static int max310x_probe(struct device *dev, const struct max310x_devtype *devty s->p[i].port.flags = UPF_FIXED_TYPE | UPF_LOW_LATENCY; s->p[i].port.iotype = UPIO_PORT; s->p[i].port.iobase = i; + /* + * Use all ones as membase to make sure uart_configure_port() in + * serial_core.c does not abort for SPI/I2C devices where the + * membase address is not applicable. + */ s->p[i].port.membase = (void __iomem *)~0; s->p[i].port.uartclk = uartclk; s->p[i].port.rs485_config = max310x_rs485_config; |