[STLinux Kernel] [PATCH v2 07/10] ARM: dts: STiH410-b2260: Identify the UART RTS line
From: peter.griffin@linaro.org (Peter Griffin)
Date: 2017-02-01 14:55:48
Also in:
linux-devicetree, linux-serial, lkml
On Wed, 01 Feb 2017, Lee Jones wrote:
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 <redacted>
Acked-by: Peter Griffin <peter.griffin@linaro.org>
quoted hunk ↗ jump to hunk
--- arch/arm/boot/dts/stih410-b2260.dts | 1 + 1 file changed, 1 insertion(+)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 at 9830000 { label = "LS-UART0"; status = "okay"; + rts-gpios = <&pio17 3 GPIO_ACTIVE_LOW>; }; /* Low speed expansion connector */