Re: [PATCH V2] ARM: dts: imx6sl: add keypad support for i.mx6sl-evk board.

[Alexander Shiyan]

Вторник, 14 января 2014, 17:23 +08:00 от Anson Huang <b20788 at freescale.com>:
> i.MX6SL EVK board has a 3*3 keypad matrix to support 8 keypads,
> enable them, the keymap is as below:
> 
> SW6:  MATRIX_KEY(0x0, 0x0, 0x67)  /* ROW0, COL0, KEY_UP */
> SW7:  MATRIX_KEY(0x0, 0x1, 0x6c)  /* ROW0, COL1, KEY_DOWN */
> SW8:  MATRIX_KEY(0x0, 0x2, 0x1c)  /* ROW0, COL2, KEY_ENTER */
> SW9:  MATRIX_KEY(0x1, 0x0, 0x66)  /* ROW1, COL0, KEY_HOME */
> SW10: MATRIX_KEY(0x1, 0x1, 0x6a)  /* ROW1, COL1, KEY_RIGHT */
> SW11: MATRIX_KEY(0x1, 0x2, 0x69)  /* ROW1, COL2, KEY_LEFT */
> SW12: MATRIX_KEY(0x2, 0x0, 0x72)  /* ROW2, COL0, KEY_VOLUMEDOWN */
> SW13: MATRIX_KEY(0x2, 0x1, 0x73)  /* ROW2, COL1, KEY_VOLUMEUP */
> 
> Signed-off-by: Anson Huang <b20788 at freescale.com>
> ---
>  arch/arm/boot/dts/imx6sl-evk.dts |   28 ++++++++++++++++++++++++++++
>  arch/arm/boot/dts/imx6sl.dtsi    |    2 ++
>  2 files changed, 30 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/imx6sl-evk.dts b/arch/arm/boot/dts/imx6sl-evk.dts
> index f5e4513..a2a0399 100644
> --- a/arch/arm/boot/dts/imx6sl-evk.dts
> +++ b/arch/arm/boot/dts/imx6sl-evk.dts
> @@ -8,6 +8,7 @@
>  
>  /dts-v1/;
>  
> +#include <dt-bindings/input/input.h>
>  #include "imx6sl.dtsi"
>  
>  / {
> @@ -93,6 +94,17 @@
>  			fsl,pins = <MX6SL_FEC_PINGRP1>;
>  		};
>  
> +		pinctrl_kpp: kppgrp {
> +			fsl,pins = <
> +				MX6SL_PAD_KEY_ROW0__KEY_ROW0    0x1b010
> +				MX6SL_PAD_KEY_ROW1__KEY_ROW1    0x1b010
> +				MX6SL_PAD_KEY_ROW2__KEY_ROW2    0x1b0b0
> +				MX6SL_PAD_KEY_COL0__KEY_COL0    0x110b0
> +				MX6SL_PAD_KEY_COL1__KEY_COL1    0x110b0
> +				MX6SL_PAD_KEY_COL2__KEY_COL2    0x110b0
> +			>;
> +		};
> +
>  		pinctrl_uart1: uart1grp {
>  			fsl,pins = <MX6SL_UART1_PINGRP1>;
>  		};
> @@ -139,6 +151,22 @@
>  	};
>  };
>  
> +&kpp {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_kpp>;
> +	linux,keymap = <
> +			MATRIX_KEY(0x0, 0x0, 0x67)  /* ROW0, COL0, KEY_UP */
> +			MATRIX_KEY(0x0, 0x1, 0x6c)  /* ROW0, COL1, KEY_DOWN */
> +			MATRIX_KEY(0x0, 0x2, 0x1c)  /* ROW0, COL2, KEY_ENTER */
> +			MATRIX_KEY(0x1, 0x0, 0x66)  /* ROW1, COL0, KEY_HOME */
> +			MATRIX_KEY(0x1, 0x1, 0x6a)  /* ROW1, COL1, KEY_RIGHT */
> +			MATRIX_KEY(0x1, 0x2, 0x69)  /* ROW1, COL2, KEY_LEFT */
> +			MATRIX_KEY(0x2, 0x0, 0x72)  /* ROW2, COL0, KEY_VOLUMEDOWN */
> +			MATRIX_KEY(0x2, 0x1, 0x73)  /* ROW2, COL1, KEY_VOLUMEUP */
> +	>;

So why you want to use hexadecimal values instead definitions for
keys from dt-bindings/input/input.h ?

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