From nobody Thu Dec 18 11:44:48 2025 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (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 B6FE8329E54; Mon, 15 Dec 2025 07:30:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765783844; cv=none; b=BnSmeIaqSF6llXvhzA9+WqQ2DMWrSxRu/506+FoRpqqz2iFVIrfpasnkFQKBwZ+yqo9tFMGBpywVpnUTI0nVaLoJjwpEGsDPB/jz9ceycmrdB1DNWPnY0PK0GKhDK/zXFJmg0+p3MyY9qmeMWsj8EeLinLiYg5w7ENGUS/Vw5fo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765783844; c=relaxed/simple; bh=ECDfT216IS7XDAHxl6JD3dcTZsCiJMFAKz8PveO6GBQ=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=m7UMTz+0W9chxTFRUPUwYGExskpR5yy7ciYL4f5VpDfbaxmTvJY+3YzGeDV5VAtw4zF06M5bJBhJK8YbYy8kTG/KayQfgZe8x+B3j2PrkDg34PGA563uOBrDjPxWjhP6Cm5WqwPQy7aDChMlrUJJ0fq5DGSTXcKnGwTiVnB5XvY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ideasonboard.com; spf=pass smtp.mailfrom=ideasonboard.com; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b=MgKiMNVB; arc=none smtp.client-ip=213.167.242.64 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="MgKiMNVB" Received: from mail.ideasonboard.com (unknown [223.190.82.135]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 4E695581; Mon, 15 Dec 2025 08:30:36 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1765783836; bh=ECDfT216IS7XDAHxl6JD3dcTZsCiJMFAKz8PveO6GBQ=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=MgKiMNVBU0+E4tbrBJ3mF2WqHz7HKRH3Wj0g7GuVj8SXrXwKB2PIYwEXfX+Y8u2pH RxxOfoqaWfACnAh2qUWXbPqx9I9aN65iQHWDZtmTq2UW0Hs068ayBj4wBG0mJZlfF4 HLhDa/C6kwCx5t/MpJ55B2S54BQjE63f4rBKEB10= From: Jai Luthra Date: Mon, 15 Dec 2025 12:57:59 +0530 Subject: [PATCH v3 03/16] media: i2c: ov5647: Correct minimum VBLANK value Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251215-b4-rpi-ov5647-v3-3-4c25e3c883b2@ideasonboard.com> References: <20251215-b4-rpi-ov5647-v3-0-4c25e3c883b2@ideasonboard.com> In-Reply-To: <20251215-b4-rpi-ov5647-v3-0-4c25e3c883b2@ideasonboard.com> To: Sakari Ailus , Dave Stevenson , Jacopo Mondi , Mauro Carvalho Chehab , Naushir Patuck , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Mauro Carvalho Chehab , Kieran Bingham , David Plowman , Laurent Pinchart , Peter Robinson , Stefan Wahren , "Ivan T. Ivanov" , Jacopo Mondi , Jai Luthra X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1008; i=jai.luthra@ideasonboard.com; h=from:subject:message-id; bh=EeooS5E8RZpQuz7+4w+98i6AERrcR8y8PJ4LbLlm9Qk=; b=owEBbQKS/ZANAwAKAUPekfkkmnFFAcsmYgBpP7jZqR+XkIa38lWseOa957PfKwDR4MEUZvEJZ oEKwXC2gPGJAjMEAAEKAB0WIQRN4NgY5dV16NRar8VD3pH5JJpxRQUCaT+42QAKCRBD3pH5JJpx Rb87D/9UbRsQDn3A2djYrU1TIDVkAyxtURGdAw3BSZOu4+vnX+6NMPj5cCrIC0u4QBb4xPqb3QS g2UiISclCHfJy4mdhhQWayeB6bJOTgacncCq58FWpdxCx3Eu/3XUmo4xwgB07cXdw0ap5vVeM/f yRclQWcGw07aSnhOqwR4Cucwqgj0PT+F87WRvJ0FGtz3FuQaELDZORLwnJqf+tgCkXp+/ZZaVEB DdI81kiwN44JED3iN8HYXgHHXd9XQ7qSRM0mjJ541Lc7HqFcxx32RViAuAKYd0LkpBbNIoTgIWb tx6QxjUT82byQMZsqIrMx/eZoTV7TxiD8nM+Npma324wsqybSADNl8XxC1fGfSxKoFms3cpHjhP rz2y+QOiglKM2bHLoUo2rC8dR3hQe3VhPP+SqDF831dYuaoNqElkoER0FieFEVy5PRdKVZLEail 9IsHkJY1SLrHISpmYTH/t4DbhJUlpwrqGXFafPI7cSRgGX5S9zhUfLU0s00Mv94Vsu6Bbc0WUnY NUxVAz5RQWVcWhb0HG9OI9fhsK/Kt0KMTOxDQwOO2iDAUJGmOP2HJXeqg/3IvYz6RC18930Mc5o rrvXxwv5Jxzzb9QmtYYxmtvYvAutidFLrhsZYsO742KLTHP9Oz5OBDA0dzxnK5AFZVSGNhOfSdE ng3iA1eQbm8215g== X-Developer-Key: i=jai.luthra@ideasonboard.com; a=openpgp; fpr=4DE0D818E5D575E8D45AAFC543DE91F9249A7145 From: David Plowman Trial and error reveals that the minimum vblank value appears to be 24 (the OV5647 data sheet does not give any clues). This fixes streaming lock-ups in full resolution mode. Fixes: 2512c06441e3 ("media: ov5647: Support V4L2_CID_VBLANK control") Signed-off-by: David Plowman Reviewed-by: Jacopo Mondi Signed-off-by: Jai Luthra --- drivers/media/i2c/ov5647.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/i2c/ov5647.c b/drivers/media/i2c/ov5647.c index d9e300406f58e554de12d9062840353bdf7a226c..191954497e3dba4b1de4094b2ea= 1328a6e287003 100644 --- a/drivers/media/i2c/ov5647.c +++ b/drivers/media/i2c/ov5647.c @@ -73,7 +73,7 @@ #define OV5647_PIXEL_ARRAY_WIDTH 2592U #define OV5647_PIXEL_ARRAY_HEIGHT 1944U =20 -#define OV5647_VBLANK_MIN 4 +#define OV5647_VBLANK_MIN 24 #define OV5647_VTS_MAX 32767 =20 #define OV5647_EXPOSURE_MIN 4 --=20 2.52.0