altera_uart: Add support for different address strides
Some controllers implement registers with a stride, to support
those we must implement the proper IO accessors.
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
Acked-by: Tobias Klauser <tklauser@distanz.ch>
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/include/linux/altera_uart.h b/include/linux/altera_uart.h
index 8d44106..c022c82 100644
--- a/include/linux/altera_uart.h
+++ b/include/linux/altera_uart.h
@@ -9,6 +9,7 @@
unsigned long mapbase; /* Physical address base */
unsigned int irq; /* Interrupt vector */
unsigned int uartclk; /* UART clock rate */
+ unsigned int bus_shift; /* Bus shift (address stride) */
};
#endif /* __ALTUART_H */