From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bali.collaboradmins.com (bali.collaboradmins.com [148.251.105.195]) (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 A57DF28A41F for ; Tue, 22 Apr 2025 14:37:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.251.105.195 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745332674; cv=none; b=Fn69Zp66caBOPMhoGm+upQ8snJZIbZR19JDjRgkCqra88ZPisLz37h9J6WWiY37zUJ0HjGSDUAf2bu0lJA/y5iPR6UPYmud8feqNqmpDjiEHwIgjB0fAyXxxfZ9/zagfa5nw6z8KVnOyooiGhPDTAxYumFJj6Mzom0y/dQzc2VQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745332674; c=relaxed/simple; bh=XOcO0ArbH6Md0k0EPnq4IKHD3/xoAvNCfcUCHuD0Lws=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=l5yAqKlmjR5cyg/v5li98M5S2Rci1PUEP85yd1hOpByv/+M5oXce66/t3qDjbzEZiKUuZpxM4XB5pkcuraHD0p6FKu7Ddl0X8/TXYUvj7waczEzxFEfF6PKIq3uTyhA5ut91Bpb4vAkljzN69rtgUdrbeYPCOmm4EBISBxR2SIA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=WGoliEGE; arc=none smtp.client-ip=148.251.105.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="WGoliEGE" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1745332670; bh=XOcO0ArbH6Md0k0EPnq4IKHD3/xoAvNCfcUCHuD0Lws=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=WGoliEGEinb7je8e2k53/89bUcia/ONf19VlR/muqYxTJvQTIpPn7RU2kAS8IalBX HBqTxt+Qx32P314ouKFeYlltDVmGzmuZ7RmrljJWQ5o3SJpNS1g3sQMr5YgdXXrOO3 jAndt9N4QgD+4RUORgHHvMdzO+k92cibpsrQQjbEYgtvAkXXinhB0O1Cj6lPySGthF dUU4nt1V1QZUmkxNDA/bWDRNyYLzVdrpfno0a4sVFS46IHN053wJhrrVzTz8GAYDNN Z9JsT2e7GhQrZGnqjia9T61x0O81msR8JIvID24EoOIi5KOB2czovYPihFUKLgKbbM Sp6TzP4SRoNcA== Received: from [192.168.1.100] (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) (Authenticated sender: kholk11) by bali.collaboradmins.com (Postfix) with ESMTPSA id 607EB17E0CAB; Tue, 22 Apr 2025 16:37:50 +0200 (CEST) Message-ID: <28e3f91f-a786-4ec6-ae70-bd92c11be81a@collabora.com> Date: Tue, 22 Apr 2025 16:37:50 +0200 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 1/1] media: mediatek: jpeg: fix buffer alignment To: Jianhua Lin , mchehab@kernel.org, matthias.bgg@gmail.com Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Project_Global_Chrome_Upstream_Group@mediatek.com References: <20250418032559.31043-1-jianhua.lin@mediatek.com> From: AngeloGioacchino Del Regno Content-Language: en-US In-Reply-To: <20250418032559.31043-1-jianhua.lin@mediatek.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Il 18/04/25 05:25, Jianhua Lin ha scritto: > From: "jianhua.lin" > > The JPEG encoder image stride register must be MCU aligned. > For YUV422, it's 32-byte aligned, and for YUV420, it's > 16-byte aligned. > > The minimal DCT block size is 8x8, so the vertical buffer > alignment for YUV422 is 8-byte aligned, and for YUV420, > it's 16-byte aligned. > > Signed-off-by: jianhua.lin Reviewed-by: AngeloGioacchino Del Regno