[SERIAL] amba-pl010: allow platforms to specify modem control method
The amba-pl010 hardware does not provide RTS and DTR control lines; it
is expected that these will be implemented using GPIO. Allow platforms
to supply a function to implement manipulation of modem control lines.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/include/linux/amba/serial.h b/include/linux/amba/serial.h
index dc726ff..48ee32a 100644
--- a/include/linux/amba/serial.h
+++ b/include/linux/amba/serial.h
@@ -158,4 +158,10 @@
#define UART01x_RSR_ANY (UART01x_RSR_OE|UART01x_RSR_BE|UART01x_RSR_PE|UART01x_RSR_FE)
#define UART01x_FR_MODEM_ANY (UART01x_FR_DCD|UART01x_FR_DSR|UART01x_FR_CTS)
+#ifndef __ASSEMBLY__
+struct amba_pl010_data {
+ void (*set_mctrl)(struct amba_device *dev, void __iomem *base, unsigned int mctrl);
+};
+#endif
+
#endif