* [PATCH] powerpc:dts:p2041rdb: enable gpio-expander
@ 2016-03-21 10:48 Nora Björklund
2016-03-21 17:58 ` Scott Wood
0 siblings, 1 reply; 3+ messages in thread
From: Nora Björklund @ 2016-03-21 10:48 UTC (permalink / raw)
To: linuxppc-dev, benh; +Cc: oss, Nora Björklund
Enable the gpio-expander pca9672 on p2041rdb. The expander
has been present on the p2041rdb all along, however not in
the device tree.
Signed-off-by: Nora Bj=C3=B6rklund <nora.bjorklund@enea.com>
---
arch/powerpc/boot/dts/fsl/p2041rdb.dts | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/powerpc/boot/dts/fsl/p2041rdb.dts b/arch/powerpc/boot/dts=
/fsl/p2041rdb.dts
index e9bd894..b1ee561 100644
--- a/arch/powerpc/boot/dts/fsl/p2041rdb.dts
+++ b/arch/powerpc/boot/dts/fsl/p2041rdb.dts
@@ -134,6 +134,13 @@
};
};
=20
+ i2c@119100 {
+ gpio@22 {
+ compatible =3D "pcf8575";
+ reg =3D <0x22>;
+ };
+ };
+
usb1: usb@211000 {
dr_mode =3D "host";
};
--=20
1.9.1
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH] powerpc:dts:p2041rdb: enable gpio-expander
2016-03-21 10:48 [PATCH] powerpc:dts:p2041rdb: enable gpio-expander Nora Björklund
@ 2016-03-21 17:58 ` Scott Wood
2016-03-22 9:26 ` Nora Björklund
0 siblings, 1 reply; 3+ messages in thread
From: Scott Wood @ 2016-03-21 17:58 UTC (permalink / raw)
To: Nora Björklund, linuxppc-dev, benh
On Mon, 2016-03-21 at 11:48 +0100, Nora Björklund wrote:
> Enable the gpio-expander pca9672 on p2041rdb. The expander
> has been present on the p2041rdb all along, however not in
> the device tree.
>
> Signed-off-by: Nora Björklund <nora.bjorklund@enea.com>
> ---
> arch/powerpc/boot/dts/fsl/p2041rdb.dts | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/arch/powerpc/boot/dts/fsl/p2041rdb.dts
> b/arch/powerpc/boot/dts/fsl/p2041rdb.dts
> index e9bd894..b1ee561 100644
> --- a/arch/powerpc/boot/dts/fsl/p2041rdb.dts
> +++ b/arch/powerpc/boot/dts/fsl/p2041rdb.dts
> @@ -134,6 +134,13 @@
> };
> };
>
> + i2c@119100 {
> + gpio@22 {
> + compatible = "pcf8575";
> + reg = <0x22>;
> + };
> + };
The compatible should be "nxp,pcf8575" and it needs the gpio-controller and
#gpio-cells properties.
Is there an interrupt line connected to it?
See Documentation/devicetree/bindings/gpio/gpio-pcf857x.txt
-Scott
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] powerpc:dts:p2041rdb: enable gpio-expander
2016-03-21 17:58 ` Scott Wood
@ 2016-03-22 9:26 ` Nora Björklund
0 siblings, 0 replies; 3+ messages in thread
From: Nora Björklund @ 2016-03-22 9:26 UTC (permalink / raw)
To: linuxppc-dev@lists.ozlabs.org, oss@buserror.net,
benh@kernel.crashing.org
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2016-03-21 10:48 [PATCH] powerpc:dts:p2041rdb: enable gpio-expander Nora Björklund
2016-03-21 17:58 ` Scott Wood
2016-03-22 9:26 ` Nora Björklund
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