ARM64: dts: meson-gxbb: Add Wifi 32K clock for p20x boards

Add a 32768Hz clock generated by the PWM E port used by the WiFi module.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi
index 86e740f..6861b0a 100644 (file)
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi
@@ -111,6 +111,13 @@
                compatible = "mmc-pwrseq-emmc";
                reset-gpios = <&gpio BOOT_9 GPIO_ACTIVE_LOW>;
        };
+
+       wifi32k: wifi32k {
+               compatible = "pwm-clock";
+               #clock-cells = <0>;
+               clock-frequency = <32768>;
+               pwms = <&pwm_ef 0 30518 0>; /* PWM_E at 32.768KHz */
+       };
 };
 
 /* This UART is brought out to the DB9 connector */
@@ -205,3 +212,11 @@
        vmmc-supply = <&vcc_3v3>;
        vqmmc-supply = <&vddio_boot>;
 };
+
+&pwm_ef {
+       status = "okay";
+       pinctrl-0 = <&pwm_e_pins>;
+       pinctrl-names = "default";
+       clocks = <&clkc CLKID_FCLK_DIV4>;
+       clock-names = "clkin0";
+};