From 08a1ea3fe85f8974c96a690f7f8c83d629d08510 Mon Sep 17 00:00:00 2001 From: Bartosz Golaszewski Date: Wed, 25 Jun 2025 17:28:38 +0200 Subject: [PATCH] arm64: dts: qcom: sm6115: add debug UART pins We should not rely on the bootloader to set up the pinmux of the debug UART port. Let's add pin definitions for uart4 to tlmm and bind them to the relevant device node. Signed-off-by: Bartosz Golaszewski Link: https://lore.kernel.org/r/20250625152839.193672-1-brgl@bgdev.pl Signed-off-by: Bjorn Andersson --- arch/arm64/boot/dts/qcom/sm6115.dtsi | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sm6115.dtsi b/arch/arm64/boot/dts/qcom/sm6115.dtsi index c8865779173ec..91fc36b59abf9 100644 --- a/arch/arm64/boot/dts/qcom/sm6115.dtsi +++ b/arch/arm64/boot/dts/qcom/sm6115.dtsi @@ -721,6 +721,13 @@ bias-pull-up; }; + qup_uart4_default: qup-uart4-default-state { + pins = "gpio12", "gpio13"; + function = "qup4"; + drive-strength = <2>; + bias-disable; + }; + sdc1_state_on: sdc1-on-state { clk-pins { pins = "sdc1_clk"; @@ -1565,6 +1572,8 @@ reg = <0x0 0x04a90000 0x0 0x4000>; clock-names = "se"; clocks = <&gcc GCC_QUPV3_WRAP0_S4_CLK>; + pinctrl-names = "default"; + pinctrl-0 = <&qup_uart4_default>; interrupts = ; interconnects = <&clk_virt MASTER_QUP_CORE_0 RPM_ALWAYS_TAG &clk_virt SLAVE_QUP_CORE_0 RPM_ALWAYS_TAG>, -- 2.47.2