Re: [PATCH] ARM: dts: TS-4800: Add gpio driver

From: Shawn Guo
Date: Sun Feb 28 2016 - 03:13:47 EST


On Fri, Feb 19, 2016 at 03:59:02PM -0500, Julien Grossholtz wrote:
> Add dts nodes for TS-4800 FPGA gpio chips.
>
> Signed-off-by: Julien Grossholtz <julien.grossholtz@xxxxxxxxxxxxxxxxxxxx>
> ---
> arch/arm/boot/dts/imx51-ts4800.dts | 29 +++++++++++++++++++++++++++++
> 1 file changed, 29 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx51-ts4800.dts b/arch/arm/boot/dts/imx51-ts4800.dts
> index 0ff76a1..c72c944 100644
> --- a/arch/arm/boot/dts/imx51-ts4800.dts
> +++ b/arch/arm/boot/dts/imx51-ts4800.dts
> @@ -165,6 +165,35 @@
> reg = <0x12000 0x1000>;
> syscon = <&syscon 0x10 6>;
> };
> +
> + fpga_gpio0: fpga_gpio0@b0010020 {
> + compatible = "technologic,ts4800-gpio";

I do not understand how this works, considering this compatible is not
supported by kernel.

Shawn

> + reg = <0x10020 0x6>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + };
> +
> + fpga_gpio1: fpga_gpio1@b0010028 {
> + compatible = "technologic,ts4800-gpio";
> + reg = <0x10028 0x6>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + };
> +
> + fpga_gpio2: fpga_gpio2@b0010030 {
> + compatible = "technologic,ts4800-gpio";
> + reg = <0x10030 0x6>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + };
> +
> + fpga_gpio3: fpga_gpio3@b0010038 {
> + compatible = "technologic,ts4800-gpio";
> + reg = <0x10038 0x6>;
> + gpio-controller;
> + ngpios = <8>;
> + #gpio-cells = <2>;
> + };
> };
> };
>
> --
> 2.5.0
>
>
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