From mboxrd@z Thu Jan 1 00:00:00 1970 From: sergei.shtylyov@cogentembedded.com (Sergei Shtylyov) Date: Tue, 30 Jul 2013 23:07:21 +0400 Subject: [PATCH 08/10] ARM: sun7i: DT: Add UART muxing options to the DTSI In-Reply-To: <1375196394-21138-9-git-send-email-maxime.ripard@free-electrons.com> References: <1375196394-21138-1-git-send-email-maxime.ripard@free-electrons.com> <1375196394-21138-9-git-send-email-maxime.ripard@free-electrons.com> Message-ID: <51F80EE9.30801@cogentembedded.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hello. On 07/30/2013 06:59 PM, Maxime Ripard wrote: > The UARTs on the A20 can be muxed to several pins. Add a few options to > the DTSI so that we can start using them in the boards' DT. > Signed-off-by: Maxime Ripard > --- > arch/arm/boot/dts/sun7i-a20.dtsi | 21 +++++++++++++++++++++ > 1 file changed, 21 insertions(+) > diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi > index 704fca9..9f45e8d 100644 > --- a/arch/arm/boot/dts/sun7i-a20.dtsi > +++ b/arch/arm/boot/dts/sun7i-a20.dtsi > @@ -70,6 +70,27 @@ > #address-cells = <1>; > #size-cells = <0>; > #gpio-cells = <3>; > + > + uart0_pins_a: uart0 at 0 { Why have address part of the node name if there's not "reg" property? And the preferred node name is "serial", not "uart", according to the ePAPR spec (http://www.power.org/resources/downloads/Power_ePAPR_APPROVED_v1.0.pdf). > + allwinner,pins = "PB22", "PB23"; > + allwinner,function = "uart0"; > + allwinner,drive = <0>; > + allwinner,pull = <0>; > + }; > + > + uart6_pins_a: uart6 at 0 { > + allwinner,pins = "PI12", "PI13"; > + allwinner,function = "uart6"; > + allwinner,drive = <0>; > + allwinner,pull = <0>; > + }; > + > + uart7_pins_a: uart7 at 0 { > + allwinner,pins = "PI20", "PI21"; > + allwinner,function = "uart7"; > + allwinner,drive = <0>; > + allwinner,pull = <0>; > + }; WBR, Sergei