The patch titled
8250: allow port type to specify bugs that are not probed for
has been added to the -mm tree. Its filename is
8250-allow-port-type-to-specify-bugs-that-are-not-probed-for.patch
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Subject: 8250: allow port type to specify bugs that are not probed for
From: David Daney <ddaney@xxxxxxxxxxxxxxxxxx>
Add a bugs field to the serial8250_config and propagate it to the port's
bugs field when the port is registered and configured.
This is a follow on to the previous patch. Now that we can specify the
port type and don't have to probe for it, we can avoid probing for bugs if
they are known with certainty to exist.
The alternative is to load up 8250.c with a bunch of OCTEON specific
special cases in the probing code.
Signed-off-by: David Daney <ddaney@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/serial/8250.c | 2 ++
drivers/serial/8250.h | 1 +
2 files changed, 3 insertions(+)
diff -puN drivers/serial/8250.c~8250-allow-port-type-to-specify-bugs-that-are-not-probed-for drivers/serial/8250.c
--- a/drivers/serial/8250.c~8250-allow-port-type-to-specify-bugs-that-are-not-probed-for
+++ a/drivers/serial/8250.c
@@ -1212,6 +1212,7 @@ static void autoconfig(struct uart_8250_
up->port.fifosize = uart_config[up->port.type].fifo_size;
up->capabilities = uart_config[up->port.type].flags;
up->tx_loadsz = uart_config[up->port.type].tx_loadsz;
+ up->bugs |= uart_config[up->port.type].bugs;
if (up->port.type == PORT_UNKNOWN)
goto out;
@@ -3065,6 +3066,7 @@ int serial8250_register_port(struct uart
uart->port.fifosize = uart_config[port->type].fifo_size;
uart->capabilities = uart_config[port->type].flags;
uart->tx_loadsz = uart_config[port->type].tx_loadsz;
+ uart->bugs = uart_config[port->type].bugs;
}
set_io_from_upio(&uart->port);
diff -puN drivers/serial/8250.h~8250-allow-port-type-to-specify-bugs-that-are-not-probed-for drivers/serial/8250.h
--- a/drivers/serial/8250.h~8250-allow-port-type-to-specify-bugs-that-are-not-probed-for
+++ a/drivers/serial/8250.h
@@ -34,6 +34,7 @@ struct serial8250_config {
const char *name;
unsigned short fifo_size;
unsigned short tx_loadsz;
+ unsigned short bugs;
unsigned char fcr;
unsigned int flags;
};
_
Patches currently in -mm which might be from ddaney@xxxxxxxxxxxxxxxxxx are
mips-make-bug-__noreturn.patch
8250-dont-clobber-spinlocks.patch
8250-serial-driver-changes-to-support-future-cavium-octeon-serial-patches.patch
serial-allow-port-type-to-be-specified-when-calling-serial8250_register_port.patch
8250-allow-port-type-to-specify-bugs-that-are-not-probed-for.patch
serial-uart-driver-changes-for-cavium-octeon.patch
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