Commit aea2be20 authored by Simon Glass's avatar Simon Glass
Browse files

dm: serial: ns16550: Correct logic for checking for character



There is a bug in the logic which checks for an available character. This
can cause invalid characters to be received - this was noticed on
beaglebone. Fix it.
Signed-off-by: default avatarSimon Glass <sjg@chromium.org>
Reviewed-by: default avatarTom Rini <trini@ti.com>
parent c487fd47
......@@ -253,7 +253,7 @@ static int ns16550_serial_getc(struct udevice *dev)
{
struct NS16550 *const com_port = dev_get_priv(dev);
if (!serial_in(&com_port->lsr) & UART_LSR_DR)
if (!(serial_in(&com_port->lsr) & UART_LSR_DR))
return -EAGAIN;
return serial_in(&com_port->rbr);
......
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