From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oskar Senft Date: Tue, 30 Jul 2019 21:34:03 -0400 Subject: [PATCH v2 2/3] dt-bindings: serial: 8250: Add documentation for espi-enabled. In-Reply-To: <20190731013404.243755-1-osk@google.com> References: <20190731013404.243755-1-osk@google.com> Message-ID: <20190731013404.243755-2-osk@google.com> List-Id: To: linux-aspeed@lists.ozlabs.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Add documentation for 8250_aspeed_vuart's espi-enabled property that enables to auto-configure the VUART's SIRQ polarity. Signed-off-by: Oskar Senft --- Documentation/devicetree/bindings/serial/8250.txt | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/serial/8250.txt b/Documentation/devicetree/bindings/serial/8250.txt index 20d351f268ef..4b8b9e502179 100644 --- a/Documentation/devicetree/bindings/serial/8250.txt +++ b/Documentation/devicetree/bindings/serial/8250.txt @@ -56,6 +56,11 @@ Optional properties: - {rts,cts,dtr,dsr,rng,dcd}-gpios: specify a GPIO for RTS/CTS/DTR/DSR/RI/DCD line respectively. It will use specified GPIO instead of the peripheral function pin for the UART feature. If unsure, don't specify this property. +- espi-enabled: Only applicable to aspeed,ast2500-vuart. Value is a phandle to + aspeed,ast2500-scu syscon alongside register offset and bit number to + identify whether the system is in eSPI mode. This is used to auto-configure + SIRQ polarity on the vuart. + Example: espi-enabled = <&syscon 0x70 25> Note: * fsl,ns16550: -- 2.22.0.709.g102302147b-goog