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ARM: mvebu: Add RN104 SATA LEDs driven via NXP PCA9554 I2C to GPIO muxer 

NETGEAR ReadyNAS 104 has a NXP PCA9554 I2C to GPIO chip. Among the 8 GPIO
lines the chip makes available, four are used on the device to control
the SATA LEDs (the four remaining ones are used for SATA disk presence).
This patch adds DT entries for NXP PCA9554 and the four SATA GPIO LEDs.

Signed-off-by: Arnaud Ebalard <arno@natisbad.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This commit is contained in:
Arnaud Ebalard 2013-11-22 00:00:12 +01:00 committed by Jason Cooper
parent 0932f1499f
commit 100a5fa975
1 changed files with 32 additions and 0 deletions
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32
arch/arm/boot/dts/armada-370-netgear-rn104.dts
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@ -12,6 +12,7 @@
/dts-v1/;
#include "armada-370.dtsi"
#include <dt-bindings/gpio/gpio.h>
/ {
model = "NETGEAR ReadyNAS 104";
@ -123,6 +124,13 @@
fan_startv = <1>;
pwm_polarity = <0>;
};
pca9554: pca9554@23 {
compatible = "nxp,pca9554";
gpio-controller;
#gpio-cells = <2>;
reg = <0x23>;
};
};
};
};
@ -154,6 +162,30 @@
gpios = <&gpio2 0 1>; /* GPIO 64 Active Low */
linux,default-trigger = "keep";
};
sata1_led {
label = "rn104:blue:sata1";
gpios = <&pca9554 0 GPIO_ACTIVE_LOW>;
default-state = "off";
};
sata2_led {
label = "rn104:blue:sata2";
gpios = <&pca9554 1 GPIO_ACTIVE_LOW>;
default-state = "off";
};
sata3_led {
label = "rn104:blue:sata3";
gpios = <&pca9554 2 GPIO_ACTIVE_LOW>;
default-state = "off";
};
sata4_led {
label = "rn104:blue:sata4";
gpios = <&pca9554 3 GPIO_ACTIVE_LOW>;
default-state = "off";
};
};
gpio_keys {