ARM: dts: sun8i: Add dt node for esp8089 wifi chip on polaroid-mid2809

The polaroid-mid2809 tablet has an esp8089 wifi chip,
add a dt node describing it.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

diff --git a/arch/arm/boot/dts/sun8i-a23-polaroid-mid2809pxe04.dts b/arch/arm/boot/dts/sun8i-a23-polaroid-mid2809pxe04.dts
index 6d06e24..c9213ca 100644 (file)
--- a/arch/arm/boot/dts/sun8i-a23-polaroid-mid2809pxe04.dts
+++ b/arch/arm/boot/dts/sun8i-a23-polaroid-mid2809pxe04.dts
@@ -47,4 +47,46 @@
 / {
        model = "Polaroid MID2809PXE04 tablet";
        compatible = "polaroid,mid2809pxe04", "allwinner,sun8i-a23";
+
+       aliases {
+               ethernet0 = &esp8089;
+       };
+
+       wifi_pwrseq: wifi_pwrseq {
+               compatible = "mmc-pwrseq-simple";
+               pinctrl-names = "default";
+               pinctrl-0 = <&wifi_pwrseq_pin_mid2809>;
+               reset-gpios = <&r_pio 0 6 GPIO_ACTIVE_LOW>; /* PL6 */
+               /* The esp8089 needs 200 ms after driving wifi-en high */
+               post-power-on-delay-ms = <200>;
+       };
+};
+
+&mmc1 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&mmc1_pins_a>;
+       vmmc-supply = <&reg_dldo1>;
+       mmc-pwrseq = <&wifi_pwrseq>;
+       bus-width = <4>;
+       non-removable;
+       status = "okay";
+
+       esp8089: sdio_wifi@1 {
+               compatible = "esp,esp8089";
+               reg = <1>;
+               esp,crystal-26M-en = <2>;
+       };
+};
+
+&mmc1_pins_a {
+       allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
+};
+
+&r_pio {
+       wifi_pwrseq_pin_mid2809: wifi_pwrseq_pin@0 {
+               allwinner,pins = "PL6";
+               allwinner,function = "gpio_out";
+               allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+               allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+       };
 };