[1/2,V2] ls2080a/dts: Add little endian property for GPIO IP block
diff mbox

Message ID 1446691342-1943-1-git-send-email-Gang.Liu@freescale.com
State New
Headers show

Commit Message

Liu Gang Nov. 5, 2015, 2:42 a.m. UTC
The GPIO block for ls2080a platform has little endian registers,
the GPIO driver needs this property to read/write registers by
right interface.

Signed-off-by: Liu Gang <Gang.Liu@freescale.com>
---
V2 changes: No

 Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt | 3 +++
 arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi          | 4 ++++
 2 files changed, 7 insertions(+)

Comments

Rob Herring Nov. 5, 2015, 9:21 p.m. UTC | #1
On Thu, Nov 05, 2015 at 10:42:21AM +0800, Liu Gang wrote:
> The GPIO block for ls2080a platform has little endian registers,
> the GPIO driver needs this property to read/write registers by
> right interface.
> 
> Signed-off-by: Liu Gang <Gang.Liu@freescale.com>

Acked-by: Rob Herring <robh@kernel.org>

> ---
> V2 changes: No
> 
>  Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt | 3 +++
>  arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi          | 4 ++++
>  2 files changed, 7 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt b/Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt
> index f2455c5..c836dab 100644
> --- a/Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt
> +++ b/Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt
> @@ -10,6 +10,9 @@ Required properties:
>    the second cell is used to specify the gpio polarity:
>        0 = active high
>        1 = active low
> +- little-endian : Should be set if the GPIO has little endian
> +		  registers. No the property means the GPIO
> +		  registers are big endian mode.
>  
>  Example:
>  
> diff --git a/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
> index e81cd48..0099205 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
> +++ b/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
> @@ -277,6 +277,7 @@
>  			reg = <0x0 0x2300000 0x0 0x10000>;
>  			interrupts = <0 36 0x4>; /* Level high type */
>  			gpio-controller;
> +			little-endian;
>  			#gpio-cells = <2>;
>  			interrupt-controller;
>  			#interrupt-cells = <2>;
> @@ -287,6 +288,7 @@
>  			reg = <0x0 0x2310000 0x0 0x10000>;
>  			interrupts = <0 36 0x4>; /* Level high type */
>  			gpio-controller;
> +			little-endian;
>  			#gpio-cells = <2>;
>  			interrupt-controller;
>  			#interrupt-cells = <2>;
> @@ -297,6 +299,7 @@
>  			reg = <0x0 0x2320000 0x0 0x10000>;
>  			interrupts = <0 37 0x4>; /* Level high type */
>  			gpio-controller;
> +			little-endian;
>  			#gpio-cells = <2>;
>  			interrupt-controller;
>  			#interrupt-cells = <2>;
> @@ -307,6 +310,7 @@
>  			reg = <0x0 0x2330000 0x0 0x10000>;
>  			interrupts = <0 37 0x4>; /* Level high type */
>  			gpio-controller;
> +			little-endian;
>  			#gpio-cells = <2>;
>  			interrupt-controller;
>  			#interrupt-cells = <2>;
> -- 
> 2.1.0.27.g96db324
> 
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Patch
diff mbox

diff --git a/Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt b/Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt
index f2455c5..c836dab 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt
@@ -10,6 +10,9 @@  Required properties:
   the second cell is used to specify the gpio polarity:
       0 = active high
       1 = active low
+- little-endian : Should be set if the GPIO has little endian
+		  registers. No the property means the GPIO
+		  registers are big endian mode.
 
 Example:
 
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
index e81cd48..0099205 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
@@ -277,6 +277,7 @@ 
 			reg = <0x0 0x2300000 0x0 0x10000>;
 			interrupts = <0 36 0x4>; /* Level high type */
 			gpio-controller;
+			little-endian;
 			#gpio-cells = <2>;
 			interrupt-controller;
 			#interrupt-cells = <2>;
@@ -287,6 +288,7 @@ 
 			reg = <0x0 0x2310000 0x0 0x10000>;
 			interrupts = <0 36 0x4>; /* Level high type */
 			gpio-controller;
+			little-endian;
 			#gpio-cells = <2>;
 			interrupt-controller;
 			#interrupt-cells = <2>;
@@ -297,6 +299,7 @@ 
 			reg = <0x0 0x2320000 0x0 0x10000>;
 			interrupts = <0 37 0x4>; /* Level high type */
 			gpio-controller;
+			little-endian;
 			#gpio-cells = <2>;
 			interrupt-controller;
 			#interrupt-cells = <2>;
@@ -307,6 +310,7 @@ 
 			reg = <0x0 0x2330000 0x0 0x10000>;
 			interrupts = <0 37 0x4>; /* Level high type */
 			gpio-controller;
+			little-endian;
 			#gpio-cells = <2>;
 			interrupt-controller;
 			#interrupt-cells = <2>;