[PATCH v2 2/2] dt-bindings: mfd: Add DT compatible string "google,cros_ec_uart"
From: Bhanu Prakash Maiya <bhanumaiya@chromium.org>
Date: 2020-07-15 07:49:23
Also in:
linux-arm-kernel, lkml
Subsystem:
multifunction devices (mfd), open firmware and flattened device tree bindings, the rest · Maintainers:
Lee Jones, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
From: Bhanu Prakash Maiya <bhanumaiya@chromium.org> Add DT compatible string in Documentation/devicetree/bindings/mfd/cros_ec.txt Series-to: LKML [off-list ref] Series-cc: Raul E Rangel [off-list ref], Furquan Shaikh [off-list ref], Duncan Laurie [off-list ref], Eric Peers [off-list ref], Benson Leung [off-list ref], Enric Balletbo i Serra [off-list ref], Guenter Roeck [off-list ref], linux-kernel@vger.kernel.org, Lee Jones [off-list ref], Rob Herring [off-list ref], devicetree@vger.kernel.org Signed-off-by: Bhanu Prakash Maiya <bhanumaiya@chromium.org> Change-Id: Icfeab15fa04daaffc61280faf5a75cd9b23ee822 Signed-off-by: Bhanu Prakash Maiya <redacted> --- 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@131b0000 { }; }; - Example for LPC is not supplied as it is not yet implemented. + +Example for UART is not supplied as it is not yet implemented.
--
2.27.0.389.gc38d7665816-goog