We use 3 adps9960 chips in our design (see schematic bellow) that are connected to an i2c muxer (PCA9544A).
I am struggling passing the APDS9960 interrupts to the CPU.
Could someone share a device tree example for this. Bellow is the device tree I am using right now.
The Interrupts are correctly seen in PCA9544A i2c Muxer driver but they are not forwarded to APDS-9960 driver.
Current Device Tree:
&i2c4 {
pinctrl-names = "default","gpio";
pinctrl-0 = <&pinctrl_i2c4>;
pinctrl-1 = <&pinctrl_i2c4_gpio>;
sda-gpios = <&gpio5 21 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
scl-gpios = <&gpio5 20 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
clock-frequency = <400000>;
status = "okay";
i2c4_mux_apds: i2c4-mux-pca9544@70 {
compatible = "nxp,pca9544";
#address-cells = <1>;
#size-cells = <0>;
reg = <0x70>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pca9544a_70>;
interrupt-parent = <&gpio2>;
interrupts = <6 IRQ_TYPE_EDGE_FALLING>;
interrupt-controller;
#interrupt-cells = <2>;
i2c@0 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0>;
proximity@39 {
compatible = "avago,apds9960";
reg = <0x39>;
interrupt-parent = <&i2c4_mux_apds>; //unsure about this ???
interrupts = <0 2>;//unsure about this ???
};
};
i2c@1 {
#address-cells = <1>;
#size-cells = <0>;
reg = <1>;
proximity@39 {
compatible = "avago,apds9960";
reg = <0x39>;
interrupt-parent = <&i2c4_mux_apds>;
interrupts = <1 2>;
};
};
i2c@2 {
#address-cells = <1>;
#size-cells = <0>;
reg = <2>;
proximity@39 {
compatible = "avago,apds9960";
reg = <0x39>;
interrupt-parent = <&i2c4_mux_apds>;
interrupts = <2 2>;
};
};
i2c@3 {
#address-cells = <1>;
#size-cells = <0>;
reg = <3>;
/* NC */
};
};
…..
&iomuxc {
…
pinctrl_pca9544a_70: pinctrl-pca9544-70 {
fsl,pins = <
MX8MP_IOMUXC_SD1_DATA4__GPIO2_IO06 0x52
>;
};
Thank you
