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, This one depends on the patch (ARM: mvebu: Add Netgear ReadyNAS 104 board) which you pushed to Olof for inclusion in v3.13. 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. Cheers, a+ arch/arm/boot/dts/armada-370-netgear-rn104.dts | 31 ++++++++++++++++++++++++++ 1 file changed, 31 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..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 */ + 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 { -- 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
