On 11/09/2013 10:07 PM, Arnaud Ebalard wrote:
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@xxxxxxxxxxxx>
---
[...]
diff --git a/arch/arm/boot/dts/armada-370-netgear-rn104.dts b/arch/arm/boot/dts/armada-370-netgear-rn104.dts
index b0b32f5..1efc871 100644
--- a/arch/arm/boot/dts/armada-370-netgear-rn104.dts
+++ b/arch/arm/boot/dts/armada-370-netgear-rn104.dts
@@ -123,6 +123,13 @@
fan_startv = <1>;
pwm_polarity = <0>;
};
+
+ pca9554: pca9554@23 {
+ compatible = "nxp,pca9554";
+ gpio-controller;
+ #gpio-cells = <2>;
+ reg = <0x23>;
+ };
};
};
};
@@ -154,6 +161,30 @@
gpios = <&gpio2 0 1>; /* GPIO 64 Active Low */
linux,default-trigger = "keep";
};
+
+ sata1_led {
+ label = "rn104:blue:sata1";
+ gpios = <&pca9554 0 1>; /* Active Low */
Same comment as for ReadyNAS 2120 patch:
#include <dt-bindings/gpio/gpio.h> and use GPIO_ACTIVE_HIGH/LOW.
Sebastian
+ default-state = "off";
+ };
+
+ sata2_led {
+ label = "rn104:blue:sata2";
+ gpios = <&pca9554 1 1>; /* Active Low */
+ default-state = "off";
+ };
+
+ sata3_led {
+ label = "rn104:blue:sata3";
+ gpios = <&pca9554 2 1>; /* Active Low */
+ default-state = "off";
+ };
+
+ sata4_led {
+ label = "rn104:blue:sata4";
+ gpios = <&pca9554 3 1>; /* Active Low */
+ default-state = "off";
+ };
};
gpio_keys {
--
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