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[1/3] DT binding: gpio-zynq: Document interrupt-controller

Message ID 1445617532-10228-1-git-send-email-soren.brinkmann@xilinx.com
State Not Applicable, archived
Headers show

Commit Message

Soren Brinkmann Oct. 23, 2015, 4:25 p.m. UTC
HW and driver support the GPIO as interrupt-controller. Document that in
the DT binding.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
---
 Documentation/devicetree/bindings/gpio/gpio-zynq.txt | 9 +++++++++
 1 file changed, 9 insertions(+)

Comments

Moritz Fischer Oct. 23, 2015, 4:53 p.m. UTC | #1
On Fri, Oct 23, 2015 at 9:25 AM, Soren Brinkmann
<soren.brinkmann@xilinx.com> wrote:
> GPIO can be used as interrupt-controller. Add the missing properties to
> the GPIO node.
>
> Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
> ---
>  arch/arm/boot/dts/zynq-7000.dtsi | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm/boot/dts/zynq-7000.dtsi b/arch/arm/boot/dts/zynq-7000.dtsi
> index 1a5220e05109..fe1a5d0cf03b 100644
> --- a/arch/arm/boot/dts/zynq-7000.dtsi
> +++ b/arch/arm/boot/dts/zynq-7000.dtsi
> @@ -101,6 +101,8 @@
>                         #gpio-cells = <2>;
>                         clocks = <&clkc 42>;
>                         gpio-controller;
> +                       interrupt-controller;
> +                       #interrupt-cells = <2>;
>                         interrupt-parent = <&intc>;
>                         interrupts = <0 20 4>;
>                         reg = <0xe000a000 0x1000>;
> --
> 2.6.2.3.ga463a5b
>
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Reviewed-by: Moritz Fischer <moritz.fischer@ettus.com>
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Linus Walleij Oct. 27, 2015, 4:03 p.m. UTC | #2
On Fri, Oct 23, 2015 at 6:25 PM, Soren Brinkmann
<soren.brinkmann@xilinx.com> wrote:

> HW and driver support the GPIO as interrupt-controller. Document that in
> the DT binding.
>
> Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>

Patch subject augmented and applied.

> +- interrupt-controller : Marks the device node as an interrupt controller.
> +- #interrupt-cells     : Should be 2.  The first cell is the GPIO number.
> +                         The second cell bits[3:0] is used to specify trigger type and level flags:
> +                             1 = low-to-high edge triggered.
> +                             2 = high-to-low edge triggered.
> +                             4 = active high level-sensitive.
> +                             8 = active low level-sensitive.

If these can be or:ed together, e.g 3 = both edges, that needs to be
documented. If they can't the current patch is fine I guess.

Yours,
Linus Walleij
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Linus Walleij Oct. 27, 2015, 4:04 p.m. UTC | #3
On Fri, Oct 23, 2015 at 6:25 PM, Soren Brinkmann
<soren.brinkmann@xilinx.com> wrote:

> GPIO can be used as interrupt-controller. Add the missing properties to
> the GPIO node.
>
> Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>

Acked-by: Linus Walleij <linus.walleij@linaro.org>

Yours,
Linus Walleij
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Michal Simek Oct. 29, 2015, 7:53 a.m. UTC | #4
On 10/27/2015 05:04 PM, Linus Walleij wrote:
> On Fri, Oct 23, 2015 at 6:25 PM, Soren Brinkmann
> <soren.brinkmann@xilinx.com> wrote:
> 
>> GPIO can be used as interrupt-controller. Add the missing properties to
>> the GPIO node.
>>
>> Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
> 
> Acked-by: Linus Walleij <linus.walleij@linaro.org>

Applied to zynq/dt.

Thanks,
Michal

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Michal Simek Oct. 29, 2015, 4:37 p.m. UTC | #5
On 10/23/2015 06:25 PM, Soren Brinkmann wrote:
> GPIO can be used as interrupt-controller. Add the missing properties to
> the GPIO node.
> 
> Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
> ---
>  arch/arm64/boot/dts/xilinx/zynqmp.dtsi | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
> index 857eda5c7217..200fb588d0f5 100644
> --- a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
> +++ b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
> @@ -133,6 +133,8 @@
>  			clocks = <&misc_clk>;
>  			interrupt-parent = <&gic>;
>  			interrupts = <0 16 4>;
> +			interrupt-controller;
> +			#interrupt-cells = <2>;
>  			reg = <0x0 0xff0a0000 0x1000>;
>  		};
>  
> 

Applied.

Thanks,
Michal
diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/gpio/gpio-zynq.txt b/Documentation/devicetree/bindings/gpio/gpio-zynq.txt
index db4c6a663c03..7b542657f259 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-zynq.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-zynq.txt
@@ -12,6 +12,13 @@  Required properties:
 - interrupts		: Interrupt specifier (see interrupt bindings for
 			  details)
 - interrupt-parent	: Must be core interrupt controller
+- interrupt-controller	: Marks the device node as an interrupt controller.
+- #interrupt-cells 	: Should be 2.  The first cell is the GPIO number.
+			  The second cell bits[3:0] is used to specify trigger type and level flags:
+			      1 = low-to-high edge triggered.
+			      2 = high-to-low edge triggered.
+			      4 = active high level-sensitive.
+			      8 = active low level-sensitive.
 - reg			: Address and length of the register set for the device
 
 Example:
@@ -22,5 +29,7 @@  Example:
 		gpio-controller;
 		interrupt-parent = <&intc>;
 		interrupts = <0 20 4>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
 		reg = <0xe000a000 0x1000>;
 	};