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Message-ID: <6dd9edcb-40cf-9873-b8aa-993bb18a3584@nvidia.com>
Date:   Fri, 26 May 2023 12:19:35 +0100
From:   Jon Hunter <jonathanh@...dia.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Vidya Sagar <vidyas@...dia.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        "linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>
Subject: Re: [PATCH] arm64: tegra: Fix PCIe regulator for Orin Jetson AGX

Adding linux-tegra ...

On 26/05/2023 12:17, Jon Hunter wrote:
> The PCIe slot on the Jetson Orin AGX is not working and PCIe cards
> are not detected. The regulator for the 3.3V regulator for the PCIe is
> using the wrong GPIO for turning on the regulator. Fix this by updating
> the 3.3V regulator to use the correct GPIO.
> 
> Signed-off-by: Jon Hunter <jonathanh@...dia.com>
> ---
>   arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi b/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi
> index e161618cfca8..4dce2e214002 100644
> --- a/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi
> +++ b/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi
> @@ -142,7 +142,7 @@ vdd_3v3_pcie: regulator-vdd-3v3-pcie {
>   		regulator-name = "VDD_3V3_PCIE";
>   		regulator-min-microvolt = <3300000>;
>   		regulator-max-microvolt = <3300000>;
> -		gpio = <&gpio TEGRA234_MAIN_GPIO(Z, 2) GPIO_ACTIVE_HIGH>;
> +		gpio = <&gpio TEGRA234_MAIN_GPIO(H, 4) GPIO_ACTIVE_HIGH>;
>   		regulator-boot-on;
>   		enable-active-high;
>   	};

-- 
nvpublic

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