From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 707B4749C; Tue, 28 Oct 2025 16:17:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761668269; cv=none; b=LniIi0PHtTFw2ZR4k/1ML842Y/DPc8cQznSj/xpOIOikREX+/40TUiXhwLtpKNeEUew4hXcW+O91g75PwaJkn2AIHijtPi9WbNRt3MFQsS0X9EN0vmPKxtlPJdvr6UlfzxLdG0Y9Je+5Fi+prnBn0a7tTfnv7sdhE0brrmir24o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761668269; c=relaxed/simple; bh=VDciX31EiS2Tu+BZbfD2p61mVTFEw5DdRN7Z18SRLGs=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=Ew2tYFHnu25dRTD7AdKnxmsGTeDpfKLUhchoxUvktfZSDCSeEfpIyZMKAF8zMPJzRUVae0Fr/Pon7jeQFRejGrLQM/fxA8FVg4Ae0JodBu8Q0EX5lsNzdsXmsitUjhARuMEl5eDDJBf4+bMJPsuHdH8SXsoZDnb+OHxwoqSkUkY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Pn2nQqYl; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Pn2nQqYl" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E44CDC4CEE7; Tue, 28 Oct 2025 16:17:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1761668269; bh=VDciX31EiS2Tu+BZbfD2p61mVTFEw5DdRN7Z18SRLGs=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=Pn2nQqYl5TD8QrF6RxGDRmU2KebC/AkgFD1TqwFz/ONCywMXf6T7USwK+csE3Mgor reWQkZabfbJPBqTeN+wb2FhscPQMKW1Lzhtg3ycY3UX+jwMt02Dkc0kfB532FyXagf /c1f7mROioVJ5dw6GIznW10li0WyTFUbxNigUjvb5k+8MhBVi1MGPNGLxtO3p9rnv/ 9nVBytUmJxPp+dW2fgSqxyChZ0jM7JYJVVbnBjGsYhHoW1QSNGo+JjRIhPcjir8gbF F/1tQdRPYy5RYyznkNFjTs9HBqz3hM6yG55O+CLaO8cdAG0PupyxUOri7QBoS+VCEw OT/DeP1UQWYZg== Message-ID: Date: Tue, 28 Oct 2025 17:17:44 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3] watchdog: Add driver for Gunyah Watchdog To: Pavan Kondeti Cc: Hrishabh Rajput , Bjorn Andersson , Konrad Dybcio , Wim Van Sebroeck , Guenter Roeck , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-arm-msm@vger.kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Neil Armstrong References: <20251028-gunyah_watchdog-v3-1-e6d1ea438b1d@oss.qualcomm.com> <25f7ff09-08ea-4969-9184-9fd01b097558@kernel.org> <76479593-c47b-41a7-8349-5d7c1403f7c0@oss.qualcomm.com> <73955d58-544c-4299-a099-bfd9e5912a40@kernel.org> <636a1f99-acd4-4904-8fae-f159646cc1a0@kernel.org> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 8bit On 28/10/2025 13:27, Pavan Kondeti wrote: > On Tue, Oct 28, 2025 at 12:07:40PM +0100, Krzysztof Kozlowski wrote: >> 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. > > Our intention is not to waste reviewers time at all. It is just a > misunderstanding on what your comment is about. Let me elaborate further > not to defend our approach here but to get a clarity so that we don't > end up in the same situation when v4 is posted. > > https://lore.kernel.org/all/b94d8ca3-af58-4a78-9a5a-12e3db0bf75f@kernel.org/ > > You mentioned here > > ``` > To me socinfo feels even better. That way only, really only qcom devices > will execute this SMC. > ``` > > We interpreted this comment as `avoid executing this SMC on non qcom > devices`. That is exactly what we have done in the current patch. since So where did you use socinfo? Point me to the code. Best regards, Krzysztof