From mboxrd@z Thu Jan 1 00:00:00 1970 From: robh@kernel.org (Rob Herring) Date: Fri, 23 Sep 2016 10:30:43 -0500 Subject: [PATCH 07/11] dt-bindings: Add DMA bindings for STM32 USART In-Reply-To: <1473957763-30629-8-git-send-email-alexandre.torgue@st.com> References: <1473957763-30629-1-git-send-email-alexandre.torgue@st.com> <1473957763-30629-8-git-send-email-alexandre.torgue@st.com> Message-ID: <20160923153043.GA22364@rob-hp-laptop> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, Sep 15, 2016 at 06:42:39PM +0200, Alexandre TORGUE wrote: > Signed-off-by: Gerald Baeza > Signed-off-by: Alexandre TORGUE Squash this with the other binding patch. You are describing the h/w block, do so completely. > > diff --git a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt > index 75b1400..85ec5f2 100644 > --- a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt > +++ b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt > @@ -12,6 +12,8 @@ stm32(f4) or stm32f7. > Optional properties: > - pinctrl: The reference on the pins configuration > - st,hw-flow-ctrl: bool flag to enable hardware flow control. > +- dmas: phandle(s) to DMA controller node(s). Refer to stm32-dma.txt > +- dma-names: "rx" and/or "tx" > > Examples: > usart4: serial at 40004c00 { > @@ -32,3 +34,13 @@ usart2: serial at 40004400 { > pinctrl-names = "default"; > pinctrl-0 = <&pinctrl_usart2 &pinctrl_usart2_rtscts>; > }; > + > +usart1: serial at 40011000 { > + compatible = "st,stm32-usart", "st,stm32-uart"; > + reg = <0x40011000 0x400>; > + interrupts = <37>; > + clocks = <&rcc 0 164>; > + dmas = <&dma2 2 4 0x414 0x0>, > + <&dma2 7 4 0x414 0x0>; > + dma-names = "rx", "tx"; > +}; > -- > 1.9.1 >