linux-kernel - Re: [PATCH] arm64: dts: qcom: sdm845-tama: Keep labibb on, so kernel can disable it

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Message-ID: <ed0bdcae-6fa1-48a4-9618-e0ac09097f9e@oss.qualcomm.com>
Date: Tue, 2 Dec 2025 13:55:40 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: david@...t.cz, Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: qcom: sdm845-tama: Keep labibb on, so kernel
 can disable it

On 12/2/25 12:31 PM, David Heidelberg via B4 Relay wrote:
> From: David Heidelberg <david@...t.cz>
> 
> In case if they were enabled by the bootloader as part of some
> reference/common routine and left hanging. Linux will switch them off if
> they're never used.
> 
> Discussion about it can be found here:
>   https://lore.kernel.org/all/20251130-oneplus-labibb-v1-1-bb3653e43120@ixit.cz/
> 
> Fixes: 5dcc6587fde2 ("arm64: dts: qcom: sdm845-tama: Add display nodes")
> Suggested-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
> Signed-off-by: David Heidelberg <david@...t.cz>
> ---

Perhaps "keeping it on" is a little bit unfortunate in that the wording
collides with keeping the regulator's output enabled, but anyway

Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>

Konrad