From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.19]) (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 C1D7F3C456B for ; Wed, 25 Mar 2026 10:58:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.19 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774436325; cv=none; b=IzbyPQYmuNka7vFMXMTWrRlpsuSd21Psvfg2+fu2ahCGfJrhYA2efXJ/GXavQGKP1UaVqSEEwA/J5+qTdqVEy8Rurr/Qq7kYqtR4PDCFsKci0wevvYO6vcfsvYi46vMSr7Wq25O+zt4S3i5M6P3CD74XZkpxThWVTdXpdWxmTOs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774436325; c=relaxed/simple; bh=wYNnny9oXXzq29zZc10s3/tHyMrNU2YdK+d6JfinpMw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=mlptgBuKw8yiZWDsdKeSNLw72z41nTjyEOPbgZHDbuq/ilvY/OLOH2r7aochsrYSqZc5U8jYMsiOcbY3b3C1XfYljioX5sWGoOvZETe40p1aW02TSyFxHcgWIAxIfZ4OGQSpi6q5vFmWlYjfoB283RKgiKfU6BHp9+hXMp6+uoE= 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=i+KfVldV; arc=none smtp.client-ip=192.198.163.19 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="i+KfVldV" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1774436324; x=1805972324; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=wYNnny9oXXzq29zZc10s3/tHyMrNU2YdK+d6JfinpMw=; b=i+KfVldV87jPBcrGU1mFwv/4eJzVwUH1+yPhawPF4PwjJZUoPUYhv60F cbqHJUmbTsAyzZgPf00qckY5XiFUNqWHMjFbqvUWdH2WD5NeNgFJsGjMV IiHLlq2IiBuZuRLsnY1UNXrpA60F0FRVTku5sDcGhCknTaPfxwg0uzH9x fkBcz0uSjINXgMy1BSTyAaTYbyst3bIyQRnfEI7Mv/AzJsGw+KLpgrzjg Fgn9CY1fqGX8lMyv1/JhX3r3FtTrY3HBVO2Gt2ClZjlS/GsjPzkad51kT 9N5GuAfbJ2GNNrx3h57auA3s5eNgpe9BblaiqGmKxg+xbkj/+ScdInIYm g==; X-CSE-ConnectionGUID: KQeGAyNNTnC0gRBHXdQFUA== X-CSE-MsgGUID: C3Ne9MBGTXmYxr2jAcaB/g== X-IronPort-AV: E=McAfee;i="6800,10657,11739"; a="74496317" X-IronPort-AV: E=Sophos;i="6.23,140,1770624000"; d="scan'208";a="74496317" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by fmvoesa113.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Mar 2026 03:58:42 -0700 X-CSE-ConnectionGUID: 3ENSlRd8RY2kpnturKJyZQ== X-CSE-MsgGUID: Z4Z6ROMWRX6LQtAwhoQTUg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,140,1770624000"; d="scan'208";a="221763482" Received: from dalessan-mobl3.ger.corp.intel.com (HELO kekkonen.fi.intel.com) ([10.245.245.64]) by fmviesa008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Mar 2026 03:58:35 -0700 Received: from punajuuri.localdomain (unknown [192.168.240.130]) by kekkonen.fi.intel.com (Postfix) with ESMTP id 8F043121DB7; Wed, 25 Mar 2026 12:58:30 +0200 (EET) Received: from sailus by punajuuri.localdomain with local (Exim 4.98.2) (envelope-from ) id 1w5LwJ-00000004wAJ-02RI; Wed, 25 Mar 2026 12:58:19 +0200 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 Subject: [PATCH v3 08/22] media: Documentation: Improve LINK_FREQ documentation Date: Wed, 25 Mar 2026 12:58:04 +0200 Message-ID: <20260325105818.1176816-9-sakari.ailus@linux.intel.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260325105818.1176816-1-sakari.ailus@linux.intel.com> References: <20260325105818.1176816-1-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