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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>
This commit is contained in:
Joachim Eastwood 2013-02-08 02:25:55 +01:00 committed by Nicolas Ferre
parent 2d25210ddd
commit 83960c820b
1 changed files with 8 additions and 0 deletions
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8
arch/arm/boot/dts/at91rm9200.dtsi
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@ -383,6 +383,12 @@ pinctrl_twi: twi-0 {
<0 25 0x1 0x2 /* PA25 periph A with multi drive */ <0 25 0x1 0x2 /* PA25 periph A with multi drive */
0 26 0x1 0x2>; /* PA26 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 { pioA: gpio@fffff400 {
@ -520,6 +526,8 @@ &pioA 26 0 /* scl */
i2c-gpio,sda-open-drain; i2c-gpio,sda-open-drain;
i2c-gpio,scl-open-drain; i2c-gpio,scl-open-drain;
i2c-gpio,delay-us = <2>; /* ~100 kHz */ i2c-gpio,delay-us = <2>; /* ~100 kHz */
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_twi_gpio>;
#address-cells = <1>; #address-cells = <1>;
#size-cells = <0>; #size-cells = <0>;
status = "disabled"; status = "disabled";