From: Rob Herring <robh@kernel.org>
Sent: Wednesday, September 8, 2021 2:47 AM

On Thu, Sep 02, 2021 at 10:18:14AM +0800, Chia-Wei Wang wrote:

quoted

Add the compatible string and the device tree description for the
Aspeed AST25xx/AST26xx UART routing control.

Signed-off-by: Chia-Wei Wang <redacted>
---
 .../devicetree/bindings/mfd/aspeed-lpc.txt    | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

Either convert aspeed-lpc.txt to DT schema or make this a separate schema
doc.

I will send a v3 patch with a separate schema included. Thanks.

Chiawei

quoted

diff --git a/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt

b/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt
index 936aa108eab4..45d44f812e5e 100644

--- a/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt
+++ b/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt

@@ -155,3 +155,25 @@ lpc_reset: reset-controller@98 {
         reg = <0x98 0x4>;
         #reset-cells = <1>;
 };
+
+UART routing control
+--------------------
+
+The UART routing control manages the RX muxes among the UART
+controllers and the I/O pins. This is typicall used for the
+Serial-Over-Lan (SOL) service.
+
+Required properties:
+
+ - compatible:		One of:
+			"aspeed,ast2500-uart-routing";
+			"aspeed,ast2600-uart-routing";
+
+ - reg:			offset and length of the IP in the LPC memory region
+
+Example:
+
+uart_routing: uart-routing@98 {
+	compatible = "aspeed,ast2600-uart-routing";
+	reg = <0x98 0x8>;
+};
--

2.17.1