[PATCH 2/3] arm64: dts: rockchip: Enable wireless on rk3399-roc-pc-plus

[Fabio Estevam]

From: Fabio Estevam <festevam at nabladev.com>

The rk3399-roc-pc-plus board has an Ampak AP6256 Wi-Fi/Bluetooth
module.

Describe the Wi-Fi function on SDIO0 and the Bluetooth function on
UART0. Add the Bluetooth wake and shutdown pinctrl entries, enable
SDIO0 as a non-removable SDIO device, and add the power sequencing
delays needed by the module.

The module uses the RK808 CLKOUT2 output as its 32 kHz low-power
clock. Drop the duplicate HYM8563 clock-output-names property and
remove the same clock from the SDIO power sequencer so the Bluetooth
node can request the shared LPO clock directly.

Signed-off-by: Fabio Estevam <festevam at nabladev.com>
---
 .../boot/dts/rockchip/rk3399-roc-pc-plus.dts  | 51 +++++++++++++++++++
 1 file changed, 51 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc-plus.dts b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc-plus.dts
index f6d62ee51f1b..f87bc7b6afc1 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc-plus.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc-plus.dts
@@ -123,6 +123,10 @@ es8388: es8388 at 11 {
 	};
 };
 
+&hym8563 {
+	/delete-property/ clock-output-names;
+};
+
 /* <4 RK_PA0 1 &pcfg_pull_none> is used as i2s_8ch_mclk_pin */
 &i2s0_8ch_bus {
 	rockchip,pins =
@@ -157,6 +161,20 @@ &i2s1 {
 };
 
 &pinctrl {
+	bt {
+		bt_enable_h: bt-enable-h {
+			rockchip,pins = <0 RK_PB1 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		bt_host_wake_l: bt-host-wake-l {
+			rockchip,pins = <0 RK_PA4 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		bt_wake_l: bt-wake-l {
+			rockchip,pins = <2 RK_PD2 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
 	es8388 {
 		ear_ctl_pin: ear-ctl-pin {
 			rockchip,pins = <0 RK_PA2 RK_FUNC_GPIO &pcfg_output_high>;
@@ -180,6 +198,28 @@ i2s_8ch_mclk_pin: i2s-8ch-mclk-pin {
 	};
 };
 
+&sdio_pwrseq {
+	/delete-property/ clocks;
+	/delete-property/ clock-names;
+	post-power-on-delay-ms = <100>;
+	power-off-delay-us = <500000>;
+};
+
+&sdio0 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	bus-width = <4>;
+	cap-sd-highspeed;
+	cap-sdio-irq;
+	keep-power-in-suspend;
+	mmc-pwrseq = <&sdio_pwrseq>;
+	non-removable;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdio0_bus4 &sdio0_cmd &sdio0_clk>;
+	sd-uhs-sdr104;
+	status = "okay";
+};
+
 &u2phy0 {
 	status = "okay";
 
@@ -212,6 +252,17 @@ &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_xfer &uart0_cts &uart0_rts>;
 	status = "okay";
+
+	bluetooth {
+		compatible = "brcm,bcm43438-bt";
+		clocks = <&rk808 1>;
+		clock-names = "lpo";
+		device-wakeup-gpios = <&gpio2 RK_PD2 GPIO_ACTIVE_HIGH>;
+		host-wakeup-gpios = <&gpio0 RK_PA4 GPIO_ACTIVE_HIGH>;
+		shutdown-gpios = <&gpio0 RK_PB1 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&bt_host_wake_l &bt_wake_l &bt_enable_h>;
+	};
 };
 
 &usbdrd_dwc3_0 {
-- 
2.43.0