| Message ID | 1446619704-27669-1-git-send-email-Gang.Liu@freescale.com |
|---|---|
| State | New |
| Headers | show |
On Wed, Nov 04, 2015 at 02:48:23PM +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> > 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 f3c59f9..41bb8c1 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 > > -- > To unsubscribe from this list: send the line "unsubscribe devicetree" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Wed, Nov 04, 2015 at 02:48:23PM +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> Please do not mix binding doc together with dts changes in one patch. Shawn > > 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 f3c59f9..41bb8c1 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 > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel > -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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 f3c59f9..41bb8c1 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>;
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>