linux-kernel - [PATCH 2/2] dt-bindings: mfd: Add DT compatible string "google,cros_ec

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Message-Id: <20200625131432.2.Icfeab15fa04daaffc61280faf5a75cd9b23ee822@changeid>
Date:   Thu, 25 Jun 2020 14:34:02 -0700
From:   Bhanu Prakash Maiya <bhanumaiya@...omium.org>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     Benson Leung <bleung@...omium.org>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Guenter Roeck <groeck@...omium.org>,
        linux-kernel@...r.kernel.org, "Lee Jones )" <lee.jones@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Raul E Rangel <rrangel@...omium.org>,
        Furquan Shaikh <furquan@...omium.org>,
        Duncan Laurie <dlaurie@...gle.com>,
        Eric Peers <epeers@...gle.com>, devicetree@...r.kernel.org,
        Bhanu Prakash Maiya <bhanumaiya@...gle.com>
Subject: [PATCH 2/2] dt-bindings: mfd: Add DT compatible string "google,cros_ec_uart"

Add DT compatible string in
Documentation/devicetree/bindings/mfd/cros_ec.txt

Signed-off-by: Bhanu Prakash Maiya <bhanumaiya@...gle.com>
---

 Documentation/devicetree/bindings/mfd/cros-ec.txt | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/mfd/cros-ec.txt b/Documentation/devicetree/bindings/mfd/cros-ec.txt
index 4860eabd0f729..ec8c5d7ecc266 100644
--- a/Documentation/devicetree/bindings/mfd/cros-ec.txt
+++ b/Documentation/devicetree/bindings/mfd/cros-ec.txt
@@ -3,7 +3,7 @@ ChromeOS Embedded Controller
 Google's ChromeOS EC is a Cortex-M device which talks to the AP and
 implements various function such as keyboard and battery charging.
 
-The EC can be connect through various means (I2C, SPI, LPC, RPMSG) and the
+The EC can be connect through various means (I2C, SPI, UART, LPC, RPMSG) and the
 compatible string used depends on the interface. Each connection method has
 its own driver which connects to the top level interface-agnostic EC driver.
 Other Linux driver (such as cros-ec-keyb for the matrix keyboard) connect to
@@ -17,6 +17,10 @@ Required properties (SPI):
 - compatible: "google,cros-ec-spi"
 - reg: SPI chip select
 
+Required properties (UART):
+- compatible: "google,cros-ec-uart"
+- reg: UART baudrate, flowcontrol
+
 Required properties (RPMSG):
 - compatible: "google,cros-ec-rpmsg"
 
@@ -72,5 +76,6 @@ spi@...b0000 {
 	};
 };
 
-
 Example for LPC is not supplied as it is not yet implemented.
+
+Example for UART is not supplied as it is not yet implemented.
-- 
2.26.2