OMAP/serial: Add support for driving a GPIO as DTR.
OMAP hardware doesn't provide a phyisical DTR line, but
some configurations may need a DTR line which tracks whether
the device is open or not.
So allow a gpio to be configured as the DTR line.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/arch/arm/plat-omap/include/plat/omap-serial.h b/arch/arm/plat-omap/include/plat/omap-serial.h
index 1a52725..52d3de4 100644
--- a/arch/arm/plat-omap/include/plat/omap-serial.h
+++ b/arch/arm/plat-omap/include/plat/omap-serial.h
@@ -69,6 +69,9 @@
unsigned int dma_rx_timeout;
unsigned int autosuspend_timeout;
unsigned int dma_rx_poll_rate;
+ int DTR_gpio;
+ int DTR_inverted;
+ int DTR_present;
int (*get_context_loss_count)(struct device *);
void (*set_forceidle)(struct platform_device *);
@@ -131,6 +134,10 @@
u32 errata;
u8 wakeups_enabled;
+ int DTR_gpio;
+ int DTR_inverted;
+ int DTR_active;
+
struct pm_qos_request pm_qos_request;
u32 latency;
u32 calc_latency;