[PATCH v2 5/8] arm64: dts: qcom: sm6350-lena: Enable Bluetooth

[erebion]

Configure the required regulators for Bluetooth and enable it on the
Xperia 10 III.

Signed-off-by: erebion <erebion@xxxxxxxxxx>
---
 .../dts/qcom/sm6350-sony-xperia-lena-pdx213.dts    | 109 +++++++++++++++++++++
 1 file changed, 109 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm6350-sony-xperia-lena-pdx213.dts b/arch/arm64/boot/dts/qcom/sm6350-sony-xperia-lena-pdx213.dts
index f3ed6445c7d35..9be0e7ceccb55 100644
--- a/arch/arm64/boot/dts/qcom/sm6350-sony-xperia-lena-pdx213.dts
+++ b/arch/arm64/boot/dts/qcom/sm6350-sony-xperia-lena-pdx213.dts
@@ -19,6 +19,10 @@ / {
 	qcom,msm-id = <434 0x10000>, <459 0x10000>;
 	qcom,board-id = <0x1000b 0>;
 
+	aliases {
+		serial1 = &uart1;
+	};
+
 	chosen {
 		#address-cells = <2>;
 		#size-cells = <2>;
@@ -381,6 +385,44 @@ &qupv3_id_1 {
 	status = "okay";
 };
 
+/* UART1: HS UART for Bluetooth */
+&qup_uart1_cts {
+	/*
+	 * Configure a bias-bus-hold on CTS to lower power
+	 * usage when Bluetooth is turned off. Bus hold will
+	 * maintain a low power state regardless of whether
+	 * the Bluetooth module drives the pin in either
+	 * direction or leaves the pin fully unpowered.
+	 */
+	/delete-property/ bias-disable;
+	bias-bus-hold;
+};
+
+&qup_uart1_rts {
+	/* We'll drive RTS, so no pull */
+	drive-strength = <2>;
+	/delete-property/ bias-pull-down;
+	bias-disable;
+};
+
+&qup_uart1_rx {
+	/*
+	 * Configure a pull-up on RX. This is needed to avoid
+	 * garbage data when the TX pin of the Bluetooth module is
+	 * in tri-state (module powered off or not driving the
+	 * signal yet).
+	 */
+	/delete-property/ bias-disable;
+	bias-pull-up;
+};
+
+&qup_uart1_tx {
+	/* We'll drive TX, so no pull */
+	drive-strength = <2>;
+	/delete-property/ bias-pull-up;
+	bias-disable;
+};
+
 &sdc2_off_state {
 	sd-cd-pins {
 		pins = "gpio94";
@@ -424,6 +466,73 @@ ts_int_default: ts-int-default-state {
 		drive-strength = <2>;
 		bias-disable;
 	};
+
+	qup_uart1_sleep_cts: qup-uart1-sleep-cts-state {
+		pins = "gpio61";
+		function = "gpio";
+		/*
+		 * Configure a bias-bus-hold on CTS to lower power
+		 * usage when Bluetooth is turned off. Bus hold will
+		 * maintain a low power state regardless of whether
+		 * the Bluetooth module drives the pin in either
+		 * direction or leaves the pin fully unpowered.
+		 */
+		bias-bus-hold;
+	};
+
+	qup_uart1_sleep_rts: qup-uart1-sleep-rts-state {
+		pins = "gpio62";
+		function = "gpio";
+		/*
+		 * Configure pull-down on RTS. As RTS is active low
+		 * signal, pull it low to indicate the BT SoC that it
+		 * can wakeup the system anytime from suspend state by
+		 * pulling RX low (by sending wakeup bytes).
+		 */
+		bias-pull-down;
+	};
+
+	qup_uart1_sleep_rx: qup-uart1-sleep-rx-state {
+		pins = "gpio64";
+		function = "gpio";
+		/*
+		 * Configure a pull-up on RX. This is needed to avoid
+		 * garbage data when the TX pin of the Bluetooth module
+		 * is floating which may cause spurious wakeups.
+		 */
+		bias-pull-up;
+	};
+
+	qup_uart1_sleep_tx: qup-uart1-sleep-tx-state {
+		pins = "gpio63";
+		function = "gpio";
+		/*
+		 * Configure pull-up on TX when it isn't actively driven
+		 * to prevent BT SoC from receiving garbage during sleep.
+		 */
+		bias-pull-up;
+	};
+};
+
+&uart1 {
+	/delete-property/ interrupts;
+	interrupts-extended = <&intc GIC_SPI 602 IRQ_TYPE_LEVEL_HIGH>,
+			     <&tlmm 64 IRQ_TYPE_EDGE_FALLING>;
+
+	pinctrl-names = "default", "sleep";
+	pinctrl-1 = <&qup_uart1_sleep_cts>, <&qup_uart1_sleep_rts>, <&qup_uart1_sleep_tx>, <&qup_uart1_sleep_rx>;
+
+	status = "okay";
+
+	bluetooth {
+		compatible = "qcom,wcn3991-bt";
+		vddio-supply = <&pm6350_l11>;
+		vddxo-supply = <&pm6350_l7>;
+		vddrf-supply = <&pm6150l_l2>;
+		vddch0-supply = <&pm6150l_l10>;
+		swctrl-gpios = <&tlmm 69 GPIO_ACTIVE_HIGH>;
+		firmware-name = "crnv32u.bin";
+	};
 };
 
 &usb_1 {

-- 
2.53.0