linux-kernel - [PATCH 1/1] dt-bindings: stm32: serial: Add optional reset

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Message-ID: <1558711838-21174-1-git-send-email-erwan.leray@st.com>
Date:   Fri, 24 May 2019 17:30:38 +0200
From:   Erwan Le Ray <erwan.leray@...com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>
CC:     <linux-serial@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        Fabrice Gasnier <fabrice.gasnier@...com>,
        Erwan Le Ray <erwan.leray@...com>
Subject: [PATCH 1/1] dt-bindings: stm32: serial: Add optional reset

STM32 serial can be reset via reset controller.
Add an optional reset property to stm32 usart bindings.

Signed-off-by: Erwan Le Ray <erwan.leray@...com>

diff --git a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt
index 9d3efed..a6b1948 100644
--- a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt
+++ b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt
@@ -13,6 +13,7 @@ Required properties:
 - clocks: The input clock of the USART instance
 
 Optional properties:
+- resets: Must contain the phandle to the reset controller.
 - pinctrl: The reference on the pins configuration
 - st,hw-flow-ctrl: bool flag to enable hardware flow control.
 - rs485-rts-delay, rs485-rx-during-tx, rs485-rts-active-low,
-- 
1.9.1