linux-kernel - [PATCH] arm64: tegra: Add uartd serial alias for Jetson TX1 module

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Message-Id: <20250420-tx1-bt-v1-1-153cba105a4e@gmail.com>
Date: Sun, 20 Apr 2025 09:35:37 -0500
From: Aaron Kling via B4 Relay <devnull+webgeek1234.gmail.com@...nel.org>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Thierry Reding <thierry.reding@...il.com>, 
 Jonathan Hunter <jonathanh@...dia.com>, 
 Tomasz Maciej Nowak <tmn505@...il.com>
Cc: Thierry Reding <treding@...dia.com>, devicetree@...r.kernel.org, 
 linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Aaron Kling <webgeek1234@...il.com>
Subject: [PATCH] arm64: tegra: Add uartd serial alias for Jetson TX1 module

From: Aaron Kling <webgeek1234@...il.com>

If a serial-tegra interface does not have an alias, the driver fails to
probe with an error:
serial-tegra 70006300.serial: failed to get alias id, errno -19
This prevents the bluetooth device from being accessible.

Fixes: 6eba6471bbb7 ("arm64: tegra: Wire up Bluetooth on Jetson TX1 module")
Signed-off-by: Aaron Kling <webgeek1234@...il.com>
---
 arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
index 9b9d1d15b0c7eafd3895f02db1bc747d7cc8923c..1bb1f9640a800af6c10fabf0ee3916f2566a6d4b 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
@@ -11,6 +11,7 @@ aliases {
 		rtc0 = "/i2c@...0d000/pmic@3c";
 		rtc1 = "/rtc@...0e000";
 		serial0 = &uarta;
+		serial3 = &uartd;
 	};
 
 	chosen {

---
base-commit: 119009db267415049182774196e3cce9e13b52ef
change-id: 20250419-tx1-bt-5f202a7e4cac

Best regards,
-- 
Aaron Kling <webgeek1234@...il.com>