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authorJoachim Eastwood <manabian@gmail.com>2013-02-08 02:25:55 +0100
committerNicolas Ferre <nicolas.ferre@atmel.com>2013-03-21 16:07:14 +0100
commit83960c820b0c31c603182350a6db74ee23fd053a (patch)
tree2d7ed1508b12ccd5efa1dd20cd22f5a8203a1c16 /arch/arm/boot/dts/at91rm9200.dtsi
parent2d25210ddd116e8fa4afc45529db6b5cb1f3538b (diff)
downloadop-kernel-dev-83960c820b0c31c603182350a6db74ee23fd053a.zip
op-kernel-dev-83960c820b0c31c603182350a6db74ee23fd053a.tar.gz
ARM: at91: add pinctrl nodes to i2c-gpio on RM92000 DT
GPIO pins used by i2c-gpio must be set to multi drive (open drain) to work properly. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Diffstat (limited to 'arch/arm/boot/dts/at91rm9200.dtsi')
-rw-r--r--arch/arm/boot/dts/at91rm9200.dtsi8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/at91rm9200.dtsi b/arch/arm/boot/dts/at91rm9200.dtsi
index a7031c6..5d3ed5a 100644
--- a/arch/arm/boot/dts/at91rm9200.dtsi
+++ b/arch/arm/boot/dts/at91rm9200.dtsi
@@ -383,6 +383,12 @@
<0 25 0x1 0x2 /* PA25 periph A with multi drive */
0 26 0x1 0x2>; /* PA26 periph A with multi drive */
};
+
+ pinctrl_twi_gpio: twi_gpio-0 {
+ atmel,pins =
+ <0 25 0x0 0x2 /* PA25 GPIO with multi drive */
+ 0 26 0x0 0x2>; /* PA26 GPIO with multi drive */
+ };
};
pioA: gpio@fffff400 {
@@ -520,6 +526,8 @@
i2c-gpio,sda-open-drain;
i2c-gpio,scl-open-drain;
i2c-gpio,delay-us = <2>; /* ~100 kHz */
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_twi_gpio>;
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
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