Allow 8250_dw to be built as a module and export serial8250_handle_irq
so that 8250 can still be built as a module. This prevents the
following build failure:
drivers/built-in.o: In function `dw8250_handle_irq':
8250_dw.c:(.text+0xcad9c): undefined reference to `serial8250_handle_irq'
Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Cc: Greg KH <greg@xxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Jamie Iles <jamie@xxxxxxxxxxxxx>
---
drivers/tty/serial/8250.c | 1 +
drivers/tty/serial/8250_dw.c | 5 +++++
drivers/tty/serial/Kconfig | 2 +-
3 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/drivers/tty/serial/8250.c b/drivers/tty/serial/8250.c
index 6f594d2..435ce14 100644
--- a/drivers/tty/serial/8250.c
+++ b/drivers/tty/serial/8250.c
@@ -1588,6 +1588,7 @@ int serial8250_handle_irq(struct uart_port *port, unsigned int iir)
return 0;
}
+EXPORT_SYMBOL_GPL(serial8250_handle_irq);
static int serial8250_default_handle_irq(struct uart_port *port)
{
diff --git a/drivers/tty/serial/8250_dw.c b/drivers/tty/serial/8250_dw.c
index e25782a..844d3a8 100644
--- a/drivers/tty/serial/8250_dw.c
+++ b/drivers/tty/serial/8250_dw.c
@@ -13,6 +13,7 @@
* raised, the LCR needs to be rewritten and the uart status register read.
*/
#include <linux/io.h>
+#include <linux/module.h>
#include <linux/serial_8250.h>
#include <linux/serial_core.h>
#include <linux/serial_reg.h>
@@ -97,3 +98,7 @@ int serial8250_use_designware_io(struct uart_port *up)
return 0;
}
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Jamie Iles");
+MODULE_DESCRIPTION("Synopsys DesignWare 8250 UART support");
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index d2d1cc2..1002e2e 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -268,7 +268,7 @@ config SERIAL_8250_RM9K
If unsure, say N.
config SERIAL_8250_DW
- bool "Support for Synopsys DesignWare 8250 quirks"
+ tristate "Support for Synopsys DesignWare 8250 quirks"
depends on SERIAL_8250
help
Selecting this option will enable handling of the extra features
--
1.7.4.4
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