From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.10]) (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 BC9983A2579 for ; Wed, 8 Apr 2026 15:40:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.10 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775662811; cv=none; b=JCVQ894A60uICzbS4kfPDKRvVp5P4vzYFnMx9sKFGeGkKdSh/Y2+n9npYCbt7xKSY3alsHHcPuV7xSeQ5KTrkJIV6eABbVsPEd1BzCwrGBX/Tn3haf3+m4JT2boG0488dfGiTfNl4qDXFHIh0jsZGhSYOaarmPp8JtyUHAml1aY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775662811; c=relaxed/simple; bh=wYNnny9oXXzq29zZc10s3/tHyMrNU2YdK+d6JfinpMw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=SageTDHHJyENfR3sQzw2UEyZ/0keoLByV2Zn6j/3sBWmyRxZ1yViuGRKco0E00mFsS7Fb48kmdWYk2ovXmdOhDGZ80JIXmBOISt3Qme9zDlRSjqQWxo6qorm3pH16u69hqYABT3jw48B75rv9ee3uFI1+KpS6BiGRTTLyIXwzo4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=LjFCl5Vi; arc=none smtp.client-ip=198.175.65.10 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="LjFCl5Vi" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1775662808; x=1807198808; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=wYNnny9oXXzq29zZc10s3/tHyMrNU2YdK+d6JfinpMw=; b=LjFCl5Vi4O0hS++2uqJ1B6C83hAVdzZqOuTj52d3LIHfsQHMTkNbSGlM Q8S5MGfI0zMxcgGLM2eJiFEW7cet/Ub62T/I4UewkwhMzuVXBSU8fswy3 z03iRE1DPMAE0ZGDvlz21XcrLt769F/HSEjD0LNT44RL0GWc7xx7VHOAA isrl8GHnPQxHTF6ODqkKvl7NVTi1A6faM0NkLEfyyWhxLnUW58+O4JaDK osQUfM5nfkziJ5xwcBZlDfQeO8t3JioltJn9KiWRJ1uyaOY4fM1hQ9EWN wO/uAathUs++aANfZY5T+7puGDLYLW4e0FEqHv9nUJ2Nw94/G9OH8z8uR g==; X-CSE-ConnectionGUID: WAjVwFjJR8mOJphm5YKN2w== X-CSE-MsgGUID: YuBqkTnaSr+0jDL9l8AfSA== X-IronPort-AV: E=McAfee;i="6800,10657,11753"; a="94038388" X-IronPort-AV: E=Sophos;i="6.23,167,1770624000"; d="scan'208";a="94038388" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Apr 2026 08:39:54 -0700 X-CSE-ConnectionGUID: 2KM/W1IQQWKSkkFN/xsfHA== X-CSE-MsgGUID: MbxKfKlKRj2uFE80hPo5Sw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,167,1770624000"; d="scan'208";a="223740292" Received: from hrotuna-mobl2.ger.corp.intel.com (HELO kekkonen.fi.intel.com) ([10.245.245.104]) by fmviesa006-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Apr 2026 08:39:45 -0700 Received: from punajuuri.localdomain (unknown [192.168.240.130]) by kekkonen.fi.intel.com (Postfix) with ESMTP id 12654121F87; Wed, 08 Apr 2026 18:39:51 +0300 (EEST) Received: from sailus by punajuuri.localdomain with local (Exim 4.98.2) (envelope-from ) id 1wAV0F-000000044DC-25WE; Wed, 08 Apr 2026 18:39:39 +0300 Organization: Intel Finland Oy - BIC 0357606-4 - c/o Alberga Business Park, 6 krs, Bertel Jungin Aukio 5, 02600 Espoo From: Sakari Ailus To: linux-media@vger.kernel.org Cc: hans@jjverkuil.nl, laurent.pinchart@ideasonboard.com, Prabhakar , Kate Hsuan , Dave Stevenson , Tommaso Merciai , Benjamin Mugnier , Sylvain Petinot , Christophe JAILLET , Julien Massot , Naushir Patuck , "Yan, Dongcheng" , "Cao, Bingbu" , "Qiu, Tian Shu" , Stefan Klug , Mirela Rabulea , =?UTF-8?q?Andr=C3=A9=20Apitzsch?= , Heimir Thor Sverrisson , Kieran Bingham , Mehdi Djait , Ricardo Ribalda Delgado , Hans de Goede , Jacopo Mondi , Tomi Valkeinen , David Plowman , "Yu, Ong Hock" , "Ng, Khai Wen" , Jai Luthra , Rishikesh Donadkar Subject: [PATCH v4 14/29] media: Documentation: Improve LINK_FREQ documentation Date: Wed, 8 Apr 2026 18:39:23 +0300 Message-ID: <20260408153939.969381-15-sakari.ailus@linux.intel.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260408153939.969381-1-sakari.ailus@linux.intel.com> References: <20260408153939.969381-1-sakari.ailus@linux.intel.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add a reference to the LINK_FREQ control and clarify the meaning of the control as for C-PHY the matter is less obvious. Signed-off-by: Sakari Ailus Reviewed-by: Mirela Rabulea Reviewed-by: Jacopo Mondi --- Documentation/driver-api/media/tx-rx.rst | 3 ++- .../userspace-api/media/v4l/ext-ctrls-image-process.rst | 4 +++- 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/Documentation/driver-api/media/tx-rx.rst b/Documentation/driver-api/media/tx-rx.rst index 22e1b13ecde9..7df2407817b3 100644 --- a/Documentation/driver-api/media/tx-rx.rst +++ b/Documentation/driver-api/media/tx-rx.rst @@ -93,7 +93,8 @@ where * - variable or constant - description * - link_freq - - The value of the ``V4L2_CID_LINK_FREQ`` integer64 menu item. + - The value of the :ref:`V4L2_CID_LINK_FREQ ` integer64 + menu item. * - nr_of_lanes - Number of data lanes used on the CSI-2 link. * - 2 diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-image-process.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-image-process.rst index 6d516f041ca2..ee88933256dd 100644 --- a/Documentation/userspace-api/media/v4l/ext-ctrls-image-process.rst +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-image-process.rst @@ -24,7 +24,9 @@ Image Process Control IDs .. _v4l2-cid-link-freq: ``V4L2_CID_LINK_FREQ (integer menu)`` - The frequency of the data bus (e.g. parallel or CSI-2). + The fundamental frequency of the operating symbol rate (serial interfaces + such as CSI-2) or the sampling rate (parallel interfaces such as DVP or + Bt.565) of the data interface. .. _v4l2-cid-pixel-rate: -- 2.47.3