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[5/8] ARM: dts: STiH410-b2260: Identify the UART RTS line

Message ID 20170124134310.27512-6-lee.jones@linaro.org
State Superseded
Headers show
Series serial: st-asc: Allow handling of RTS line | expand

Commit Message

Lee Jones Jan. 24, 2017, 1:43 p.m. UTC 
When hardware flow-control is disabled, manual toggling of the UART's
reset line (RTS) using userland applications (e.g. stty) is not
possible, since the ASC IP does not provide this functionality in the
same was as some other IPs do.  Thus, we have to do this manually.
This patch configures the UART RTS line as a GPIO for manipulation
within the UART driver when HW flow-control is not enabled.

Signed-off-by: Lee Jones <lee.jones@linaro.org>

---
 arch/arm/boot/dts/stih410-b2260.dts | 1 +
 1 file changed, 1 insertion(+)

-- 
2.10.2
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Patch

diff --git a/arch/arm/boot/dts/stih410-b2260.dts b/arch/arm/boot/dts/stih410-b2260.dts
index 06b0696..fa16aba 100644
--- a/arch/arm/boot/dts/stih410-b2260.dts
+++ b/arch/arm/boot/dts/stih410-b2260.dts
@@ -63,6 +63,7 @@ 
 		uart0: serial@9830000 {
 			label = "LS-UART0";
 			status = "okay";
+			rts-gpios = <&pio17 3 GPIO_ACTIVE_LOW>;
 		};
 
 		/* Low speed expansion connector */