Received-SPF: pass (google.com: domain of linux-kernel+bounces-24019-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) client-ip=147.75.199.223;
Message-ID: <12d6fe9b-4b07-4c67-a18e-92db9d858a9d@quicinc.com>
Date: Thu, 11 Jan 2024 11:55:39 -0800
Precedence: bulk
MIME-Version: 1.0
User-Agent: Mozilla Thunderbird
Subject: Re: [PATCH 0/2] arm64: dts: qcom: sm8650: mark gpio74 as reserved
Content-Language: en-US
To: Neil Armstrong <neil.armstrong@linaro.org>,
        Bjorn Andersson
	<andersson@kernel.org>,
        Konrad Dybcio <konrad.dybcio@linaro.org>,
        Rob Herring
	<robh+dt@kernel.org>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>
CC: <linux-arm-msm@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>, Georgi Djakov <djakov@kernel.org>
References: <20240111-topic-sm8650-upstream-qrd-fix-gpio-reserved-v1-0-fad39b4c5def@linaro.org>
From: Elliot Berman <quic_eberman@quicinc.com>
In-Reply-To: <20240111-topic-sm8650-upstream-qrd-fix-gpio-reserved-v1-0-fad39b4c5def@linaro.org>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 7bit


On 1/11/2024 8:58 AM, Neil Armstrong wrote:
> The TLMM gpio74 is also used to communicate with the secure NFC
> on-board module, some variants of the SM8650 QRD & MTP boards requires
> this GPIO to be dedicated to the secure firmware and set reserved
> in order to successfully initialize the TLMM GPIOs from HLOS (Linux).
> On the other boards this GPIO is unused so it's still safe to mark
> the GPIO as reserved.
> 
> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>

Double checked these and no others currently are also reserved.

Reviewed-by: Elliot Berman <quic_eberman@quicinc.com>

> ---
> Neil Armstrong (2):
>       arm64: dts: qcom: sm8650-qrd: add gpio74 as reserved gpio
>       arm64: dts: qcom: sm8650-mtp: add gpio74 as reserved gpio
> 
>  arch/arm64/boot/dts/qcom/sm8650-mtp.dts | 2 +-
>  arch/arm64/boot/dts/qcom/sm8650-qrd.dts | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> ---
> base-commit: bffdfd2e7e63175ae261131a620f809d946cf9a7
> change-id: 20240111-topic-sm8650-upstream-qrd-fix-gpio-reserved-1c3d56c2d3e8
> 
> Best regards,