From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A175ED35175 for ; Wed, 1 Apr 2026 10:39:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=l+Vk2PwE94ZCcIgL1d3hze4YCjE7brub2751Lktb8Hw=; b=rr19lpkPryAG/v7kI+DtD6KszS G04WyYK+MmSpMHkUkmsVIGpYvI/M1R+RNUKBygCysFBtAqzGU5VxFhu8t6nnwevg6I54ixi62JSxX FwgoYLm8tD3cjXKx/NhUwwshfQGgI+GmKALGJtM8Kg5sQlljv1MEw5sSQHG+SRLdX0Y1pvLmgYjVs gA23muDfUInzGVjllfV7cGYGTRa1KdvauLN0gpPgkXa3DNRv525q/q3kBLavzW1ljIws7XFOJZ07P joD7FQjWAfq35TG5/CjIi2d1PXB/S17uvHtz4b50qsTrJHEBHGdFajyhsUpxDNliqQTKj6DcUo5Q7 00YTMosw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1w7sye-0000000EXaw-3J0O; Wed, 01 Apr 2026 10:39:12 +0000 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1w7sya-0000000EXaX-3gTm for linux-arm-kernel@lists.infradead.org; Wed, 01 Apr 2026 10:39:10 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 75EEF40806; Wed, 1 Apr 2026 10:39:08 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 98EF3C2BC9E; Wed, 1 Apr 2026 10:38:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775039948; bh=gypXeCIau+T31ayAMYAkx5DFD3q4gUaQNSeKpKpkNlQ=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=K7DG3XbOUuYMx5zD4tf0w/zNrZEISuaOkl0y9bsZ4ZF+eqvqQ0/krCyVMIfchfDNf 7Xuk5gafjgRfYkVK39mhBM2PDIsE/ixN1liAk/eRoKmQyUGy7ZRj1enOA4NQefzUhI GLjiOnzc4Y9Zei2bor3Xg2dVwcLdWJOepFwM7wBYVvd6VJCg8PPuvvxNBtxRTTj29Y r/jcLZLUpgF2HxBl3qkmT9U5xv+UaKmhWqfZ7wP821m87phAJNBAnqkabTP3HN5ohF rtkX5shCv/WaBxEtGFpPtzvO3eboX0+Vzx+RlGHVegISQ8lNsbFVElduYjqr1+Mwkf H5tWHI+WMrmkw== Message-ID: <2f4c4063-daf6-48f2-b830-9f58dc7af80d@kernel.org> Date: Wed, 1 Apr 2026 12:38:56 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/2] dt-bindings: gpu: mali-valhall-csf: Document i.MX952 support To: Guangliu Ding , Liviu Dudau Cc: "Daniel Baluta (OSS)" , Daniel Almeida , Alice Ryhl , Boris Brezillon , Steven Price , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , "dri-devel@lists.freedesktop.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "imx@lists.linux.dev" , "linux-arm-kernel@lists.infradead.org" , Jiyu Yang References: <20260331-master-v1-0-65c8e318d462@nxp.com> <20260331-master-v1-1-65c8e318d462@nxp.com> <99a1da55-d6e5-4d11-abaa-8c85283ab5f2@oss.nxp.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260401_033908_963358_A4A6D7F2 X-CRM114-Status: GOOD ( 10.69 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 01/04/2026 12:31, Guangliu Ding wrote: >> Either add the patch(es) that use the compatible to this series in v2, or put a >> comment in the commit message on where we can see the driver changes. >> > > According to discussions with the GPU vendor, this is a hardware limitation > of Mali-G310 rather than a hardware bug, and it has been addressed in newer > Mali GPU families. > > In addition, ipa_counters are not enabled in the current Panthor driver. We observed > this issue with the private Mali DDK where ipa_counters were enabled. > Therefore, keeping the compatible string is necessary to allow for future divergence. No one discusses here whether you need separate compatible string. writing bindings and all my talks are (e.g. DTS 101) are clearly expecting you. We discuss only the lack of compatibility in terms of DT, how DT sees compatible devices. And lack of driver code is clear indication that devices are compatible in terms how DT understands it. Feel encouraged to bring actual arguments in commit msgs in the future. Best regards, Krzysztof