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 <[email protected]> --- Hi Jason, For some reason, I have forgotten this one in my drafts folder and noticed that just now. It goes on top of 45e8815f (ARM: mvebu: Add Netgear ReadyNAS 104 board) which is now sitting in Linus tree. If you wonder why NETGEAR was short on GPIO lines from the Armada 370 SoC and had to add this, the answer is: the front Winstar WH1602 LCD consumes 7 lines. Changes since v1: Following comments from Sebastian: - Changed values for macros for GPIO voltage level Cheers, a+ arch/arm/boot/dts/armada-370-netgear-rn104.dts | 32 ++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/arch/arm/boot/dts/armada-370-netgear-rn104.dts b/arch/arm/boot/dts/armada-370-netgear-rn104.dts index b0b32f5..e65c24c 100644 --- a/arch/arm/boot/dts/armada-370-netgear-rn104.dts +++ b/arch/arm/boot/dts/armada-370-netgear-rn104.dts @@ -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 { -- 1.8.4.rc3 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
