From mboxrd@z Thu Jan  1 00:00:00 1970
From: hdegoede@redhat.com (Hans de Goede)
Date: Thu, 04 Dec 2014 21:04:19 +0100
Subject: [linux-sunxi] [PATCH 3/3] ARM:dts:sun7i:ps2 added nodes for Sun7i
 A20 PS2 controller. 	added ps2 nodes in lime2 board dts.
In-Reply-To: <1417647963-28077-1-git-send-email-VishnuPatekar0510@gmail.com>
References: <1417647963-28077-1-git-send-email-VishnuPatekar0510@gmail.com>
Message-ID: <5480BE43.9050308@redhat.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

Hi,

On 12/04/2014 12:06 AM, vishnupatekar wrote:
> ---
>   arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts |   10 ++++++++
>   arch/arm/boot/dts/sun7i-a20.dtsi                |   30 ++++++++++++++++++++++-
>   2 files changed, 39 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
> index ed364d5..374897b 100644
> --- a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
> @@ -112,6 +112,16 @@
>   			pinctrl-0 = <&uart0_pins_a>;
>   			status = "okay";
>   		};
> +		ps20: ps2 at 0x01c2a000 {
> +			pinctrl-names = "default";
> +			pinctrl-0 = <&ps2_0_pins>;
> +			status = "okay";
> +		};
> +		ps21: ps2 at 0x01c2a400 {
> +			pinctrl-names = "default";
> +			pinctrl-0 = <&ps2_1_pins>;
> +			status = "okay";
> +		};

I don't think this should be enabled by default, since there
is no ps2 connector on the board, and the pins can be used
in a different manner too.

I do think it is useful to have it in there as an example for people who want to use
it, but commented out, please also add a comment stating that using ps20 conflicts
with using the hdmi connector.

Regards,

Hans

>
>   		i2c0: i2c at 01c2ac00 {
>   			pinctrl-names = "default";
> diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
> index 8605f2b..c77635d 100644
> --- a/arch/arm/boot/dts/sun7i-a20.dtsi
> +++ b/arch/arm/boot/dts/sun7i-a20.dtsi
> @@ -357,7 +357,7 @@
>
>   		usb_clk: clk at 01c200cc {
>   			#clock-cells = <1>;
> -		        #reset-cells = <1>;
> +			#reset-cells = <1>;
>   			compatible = "allwinner,sun4i-a10-usb-clk";
>   			reg = <0x01c200cc 0x4>;
>   			clocks = <&pll6 1>;
> @@ -852,6 +852,19 @@
>   				    allwinner,drive = <0>;
>   				    allwinner,pull = <0>;
>   			};
> +			ps2_0_pins: ps2_0 at 0 {
> +				    allwinner,pins = "PI20","PI21";
> +				    allwinner,function = "ps2";
> +				    allwinner,drive = <0>;
> +				    allwinner,pull = <0>;
> +			};
> +			ps2_1_pins: ps2_1 at 0 {
> +				    allwinner,pins = "PH12","PH13";
> +				    allwinner,function = "ps2";
> +				    allwinner,drive = <0>;
> +				    allwinner,pull = <0>;
> +			};
> +
>   		};
>
>   		timer at 01c20c00 {
> @@ -1079,5 +1092,20 @@
>   			#interrupt-cells = <3>;
>   			interrupts = <1 9 0xf04>;
>   		};
> +		ps20: ps2 at 0x01c2a000 {
> +			compatible = "allwinner,sun7i-a20-ps2";
> +			reg = <0x01c2a000 0x400>;
> +			interrupts = <0 62 4>;
> +			clocks = <&apb1_gates 6>;
> +			status = "disabled";
> +		};
> +		ps21: ps2 at 0x01c2a400 {
> +			compatible = "allwinner,sun7i-a20-ps2";
> +			reg = <0x01c2a400 0x400>;
> +			interrupts = <0 63 4>;
> +			clocks = <&apb1_gates 7>;
> +			status = "disabled";
> +		};
> +
>   	};
>   };
>