linux-kernel - Re: [PATCH v3 4/4] watchdog: qcom: add support to read the restart reason from IMEM

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Message-ID: <c2b0b0b3-6fa9-46b8-84ef-81314965848a@oss.qualcomm.com>
Date: Fri, 2 May 2025 22:01:06 +0530
From: Kathiravan Thirumoorthy <kathiravan.thirumoorthy@....qualcomm.com>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck
 <linux@...ck-us.net>, bod.linux@...w.ie,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-watchdog@...r.kernel.org
Subject: Re: [PATCH v3 4/4] watchdog: qcom: add support to read the restart
 reason from IMEM


On 5/2/2025 8:24 PM, Dmitry Baryshkov wrote:
>> +static int  qcom_wdt_get_restart_reason(struct qcom_wdt *wdt,
>> +					const struct qcom_wdt_match_data *data)
>> +{
>> +	struct regmap *imem;
>> +	unsigned int val;
>> +	int ret;
>> +
>> +	imem = syscon_regmap_lookup_by_compatible(data->imem_compatible);
>> +	if (IS_ERR(imem))
>> +		return PTR_ERR(imem);
> Why? Just pass the syscon directly via DT.


Ack. As replied to Konrad, will rework this.