linux-kernel - Re: [PATCH v3] watchdog: Add driver for Gunyah Watchdog

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Message-ID: <636a1f99-acd4-4904-8fae-f159646cc1a0@kernel.org>
Date: Tue, 28 Oct 2025 12:07:40 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Hrishabh Rajput <hrishabh.rajput@....qualcomm.com>,
 Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konradybcio@...nel.org>,
 Wim Van Sebroeck <wim@...ux-watchdog.org>, Guenter Roeck
 <linux@...ck-us.net>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, linux-watchdog@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 Pavan Kondeti <pavan.kondeti@....qualcomm.com>,
 Neil Armstrong <neil.armstrong@...aro.org>
Subject: Re: [PATCH v3] watchdog: Add driver for Gunyah Watchdog

On 28/10/2025 12:04, Krzysztof Kozlowski wrote:
> On 28/10/2025 11:58, Hrishabh Rajput wrote:
>>
>> On 10/28/2025 3:10 PM, Krzysztof Kozlowski wrote:
>>> On 28/10/2025 10:35, Hrishabh Rajput via B4 Relay wrote:
>>>> +
>>>> +static int __init gunyah_wdt_init(void)
>>>> +{
>>>> +	struct arm_smccc_res res;
>>>> +	struct device_node *np;
>>>> +	int ret;
>>>> +
>>>> +	/* Check if we're running on a Qualcomm device */
>>>> +	np = of_find_compatible_node(NULL, NULL, "qcom,smem");
>>> I don't think you implemented my feedback. This again is executed on
>>> every platform, e.g. on Samsung, pointlessly.
>>>
>>> Implement previous feedback.
>>
>> Do you want us to add platform device from another driver which is 
>> probed only on Qualcomm devices (like socinfo from previous discussion) 
>> and get rid of the module init function entirely? As keeping anything in 
>> the module init will get it executed on all platforms.
> 
> Instead of asking the same can you read previous discussion? What is
> unclear here:
> https://lore.kernel.org/all/3b901f9d-dbfa-4f93-a8d2-3e89bd9783c9@kernel.org/
> ?
> 
>>
>>
>> With this patch version, we have tried to reduce the code execution on 
>> non-Qualcomm devices (also tried the alternative as mentioned in the 
>> cover letter). Adding platform device from another driver as described 
>> above would eliminate it entirely, please let us know if you want us to 
>> do that.
> 
> Why do I need to repeat the same as last time?


Now I see that you completely ignored previous discussion and sent THE
SAME approach.

NAK. It is waste of our time if you keep ignoring reviewers and force us
to re-iterate the same over and over again.

Best regards,
Krzysztof