linux-kernel - Re: [PATCH 4/9] arm64: dts: meson: g12a: add uart_ao

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Date:   Mon, 11 Mar 2019 10:13:37 +0100
From:   Neil Armstrong <narmstrong@...libre.com>
To:     khilman@...libre.com
Cc:     Jerome Brunet <jbrunet@...libre.com>,
        linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/9] arm64: dts: meson: g12a: add uart_ao_a pinctrl

On 07/03/2019 16:13, Neil Armstrong wrote:
> From: Jerome Brunet <jbrunet@...libre.com>
> 
> Add the always on UART pinctrl setting to the g12a soc DT and
> use it for the u200 reference design
> 
> Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
> Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
> ---
>  .../arm64/boot/dts/amlogic/meson-g12a-u200.dts |  2 ++
>  arch/arm64/boot/dts/amlogic/meson-g12a.dtsi    | 18 ++++++++++++++++++
>  2 files changed, 20 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a-u200.dts b/arch/arm64/boot/dts/amlogic/meson-g12a-u200.dts
> index c44dbdddf2cf..f2afd0bf3e28 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-g12a-u200.dts
> +++ b/arch/arm64/boot/dts/amlogic/meson-g12a-u200.dts
> @@ -25,5 +25,7 @@
>  
>  &uart_AO {
>  	status = "okay";
> +	pinctrl-0 = <&uart_ao_a_pins>;
> +	pinctrl-names = "default";
>  };
>  
> diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi
> index c141cc7f6b09..f8f055c49f9a 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi
> @@ -177,6 +177,24 @@
>  						#gpio-cells = <2>;
>  						gpio-ranges = <&ao_pinctrl 0 0 15>;
>  					};
> +
> +					uart_ao_a_pins: uart_a_ao {
> +						mux {
> +							groups = "uart_ao_a_tx",
> +								 "uart_ao_a_rx";
> +							function = "uart_ao_a";
> +							bias-disable;
> +						};
> +					};
> +
> +					uart_ao_a_cts_rts_pins: uart_ao_a_cts_rts {
> +						mux {
> +							groups = "uart_ao_a_cts",
> +								 "uart_ao_a_rts";
> +							function = "uart_ao_a";
> +							bias-disable;
> +						};
> +					};
>  				};
>  			};
>  
> 

Will move this out of this patchset to the boards patchset