This makes hardware flow control availability configurable from the
device tree.
Signed-off-by: Frans Klaver <frans.klaver@xxxxxxxxx>
---
Documentation/devicetree/bindings/serial/omap_serial.txt | 1 +
drivers/tty/serial/omap-serial.c | 3 +++
2 files changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/serial/omap_serial.txt b/Documentation/devicetree/bindings/serial/omap_serial.txt
index 342eedd..1b629e9 100644
--- a/Documentation/devicetree/bindings/serial/omap_serial.txt
+++ b/Documentation/devicetree/bindings/serial/omap_serial.txt
@@ -8,3 +8,4 @@ Required properties:
Optional properties:
- clock-frequency : frequency of the clock input to the UART
+- has-hw-flow-control : the hardware has flow control capability
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index ff2d931..87df0ee 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -1660,6 +1660,9 @@ static int serial_omap_probe(struct platform_device *pdev)
return -EPROBE_DEFER;
wakeirq = irq_of_parse_and_map(pdev->dev.of_node, 1);
omap_up_info = of_get_uart_port_info(&pdev->dev);
+ if (of_property_read_bool(pdev->dev.of_node,
+ "has-hw-flow-control"))
+ omap_up_info->flags |= UPF_HARD_FLOW;
pdev->dev.platform_data = omap_up_info;
} else {
uartirq = platform_get_irq(pdev, 0);
--
1.9.3
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