[PATCH] powerpc:dts:p2041rdb: enable gpio-expander
Subsystems:
linux for powerpc (32-bit and 64-bit) , the rest
3786d
3 messages,
2 authors,
2016-03-22 · open the first message on its own page
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 <redacted>
---
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
On Mon, 2016-03-21 at 11:48 +0100, Nora Björklund wrote: quoted hunk 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 <redacted>
---
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
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