From 22ac34e24af7021bbf4ae80ade4c59b3d74f4941 Mon Sep 17 00:00:00 2001 From: Rahul Samana Date: Fri, 29 May 2026 16:03:49 +0530 Subject: [PATCH 1/2] FROMLIST: dt-bindings: net: bluetooth: qcom: document QCC2072 Add the new compatible string for the QCC2072 BT SoC to the Qualcomm Bluetooth DT binding schema. Signed-off-by: Rahul Samana Link: https://lore.kernel.org/all/20260529175342.3363935-1-yepuri.siddu@oss.qualcomm.com/ --- .../net/bluetooth/qcom,qcc2072-bt.yaml | 38 +++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/bluetooth/qcom,qcc2072-bt.yaml diff --git a/Documentation/devicetree/bindings/net/bluetooth/qcom,qcc2072-bt.yaml b/Documentation/devicetree/bindings/net/bluetooth/qcom,qcc2072-bt.yaml new file mode 100644 index 0000000000000..8e2f15a75d620 --- /dev/null +++ b/Documentation/devicetree/bindings/net/bluetooth/qcom,qcc2072-bt.yaml @@ -0,0 +1,38 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/bluetooth/qcom,qcc2072-bt.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm QCC2072 Bluetooth + +maintainers: + - Balakrishna Godavarthi + - Rocky Liao + +description: + Qualcomm QCC2072 is a UART-based Bluetooth controller. + +properties: + compatible: + enum: + - qcom,qcc2072-bt + +required: + - compatible + +allOf: + - $ref: bluetooth-controller.yaml# + - $ref: qcom,bluetooth-common.yaml# + - $ref: /schemas/serial/serial-peripheral-props.yaml# + +unevaluatedProperties: false + +examples: + - | + serial { + bluetooth { + compatible = "qcom,qcc2072-bt"; + max-speed = <3200000>; + }; + }; From d9e770189e68325046e7af07e4d45f6a35eef700 Mon Sep 17 00:00:00 2001 From: Rahul Samana Date: Fri, 29 May 2026 17:04:44 +0530 Subject: [PATCH 2/2] FROMLIST: arm64: dts: qcom: Add M.2 QCC2072 support on qcs6490-rb3gen2 industrial mezzanine Add DTS support for M.2 QCC2072 on Qualcomm qcs6490-rb3gen2 industrial mezzanine board. Signed-off-by: Rahul Samana Link: https://lore.kernel.org/all/20260529180234.3373056-1-yepuri.siddu@oss.qualcomm.com/ --- arch/arm64/boot/dts/qcom/Makefile | 2 + ...3gen2-industrial-mezzanine-m2-cologne.dtso | 110 ++++++++++++++++++ .../qcs6490-rb3gen2-industrial-mezzanine.dtso | 4 + 3 files changed, 116 insertions(+) create mode 100644 arch/arm64/boot/dts/qcom/qcs6490-rb3gen2-industrial-mezzanine-m2-cologne.dtso diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile index 28123cdc9de26..37e032d230b11 100644 --- a/arch/arm64/boot/dts/qcom/Makefile +++ b/arch/arm64/boot/dts/qcom/Makefile @@ -175,8 +175,10 @@ dtb-$(CONFIG_ARCH_QCOM) += qcs6490-rb3gen2-el2.dtb qcs6490-rb3gen2-vision-mezzanine-dtbs := qcs6490-rb3gen2.dtb qcs6490-rb3gen2-vision-mezzanine.dtbo qcs6490-rb3gen2-industrial-mezzanine-dtbs := qcs6490-rb3gen2.dtb qcs6490-rb3gen2-industrial-mezzanine.dtbo +qcs6490-rb3gen2-industrial-mezzanine-m2-cologne-dtbs := qcs6490-rb3gen2.dtb qcs6490-rb3gen2-industrial-mezzanine.dtbo qcs6490-rb3gen2-industrial-mezzanine-m2-cologne.dtbo dtb-$(CONFIG_ARCH_QCOM) += qcs6490-rb3gen2-industrial-mezzanine.dtb +dtb-$(CONFIG_ARCH_QCOM) += qcs6490-rb3gen2-industrial-mezzanine-m2-cologne.dtb dtb-$(CONFIG_ARCH_QCOM) += qcs6490-rb3gen2-vision-mezzanine.dtb dtb-$(CONFIG_ARCH_QCOM) += qcs6490-thundercomm-minipc-g1iot.dtb dtb-$(CONFIG_ARCH_QCOM) += qcs6490-thundercomm-rubikpi3.dtb diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2-industrial-mezzanine-m2-cologne.dtso b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2-industrial-mezzanine-m2-cologne.dtso new file mode 100644 index 0000000000000..905a40f4b938f --- /dev/null +++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2-industrial-mezzanine-m2-cologne.dtso @@ -0,0 +1,110 @@ +// SPDX-License-Identifier: BSD-3-Clause +/* + * Copyright (c) 2026, Qualcomm Innovation Center, Inc. All rights reserved. +*/ + +/dts-v1/; +/plugin/; +#include + +&tlmm { + qup_uart4_sleep_cts: qup-uart4-sleep-cts-state { + pins = "gpio16"; + 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_uart4_sleep_rts: qup-uart4-sleep-rts-state { + pins = "gpio17"; + 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_uart4_sleep_rx: qup-uart4-sleep-rx-state { + pins = "gpio19"; + 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_uart4_sleep_tx: qup-uart4-sleep-tx-state { + pins = "gpio18"; + 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; + }; + + sw_ctrl: sw-ctrl-state { + pins = "gpio86"; + function = "gpio"; + bias-pull-down; + }; +}; + +&qup_uart4_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. + */ + bias-bus-hold; +}; + +&qup_uart4_rts { + /* We'll drive RTS, so no pull */ + drive-strength = <2>; + bias-disable; +}; + +&qup_uart4_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). + */ + bias-pull-up; +}; + +&qup_uart4_tx { + /* We'll drive TX, so no pull */ + drive-strength = <2>; + bias-disable; +}; + +&uart4 { + status = "okay"; + /delete-property/ interrupts; + interrupts-extended = <&intc GIC_SPI 605 IRQ_TYPE_LEVEL_HIGH>, + <&tlmm 19 IRQ_TYPE_EDGE_FALLING>; + pinctrl-names = "default", "sleep"; + pinctrl-1 = <&qup_uart4_sleep_cts>, <&qup_uart4_sleep_rts>, + <&qup_uart4_sleep_tx>, <&qup_uart4_sleep_rx>; + + bluetooth: bluetooth { + compatible = "qcom,qcc2072-bt"; + max-speed = <3200000>; + }; +}; diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2-industrial-mezzanine.dtso b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2-industrial-mezzanine.dtso index 670566f99621c..ca2afcd2dfb20 100644 --- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2-industrial-mezzanine.dtso +++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2-industrial-mezzanine.dtso @@ -527,3 +527,7 @@ &wifi { status = "disabled"; }; + +&uart7 { + status = "disabled"; +};