From patchwork Mon Apr 29 19:08:50 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sakari Ailus X-Patchwork-Id: 13647552 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) (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 4181113AD29 for ; Mon, 29 Apr 2024 19:08:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.15 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714417740; cv=none; b=VpqEC3vRPcU6MytqFmhTC8Az0RDeHE4RFei6Bjcoh40DqSl6cnjywwtk3zOzeG6SO47cXM+Ncss4AESx2f3uYhtpK7zu4Behtg7jFttBMtLgFKMY6PkSF7vciMNICem5W5NOxQ6hqY9D8A0G4TP/yyBESWTejWf1+Mtbfp4y7g0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714417740; c=relaxed/simple; bh=Xns0lP6SxmJ3DlnIEONicXGfYk2FNFFx8g3cLDe7ljs=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=qhxT5bcQgO3qomEYE18Qb1thTEQXs05vfA29CZxrYC2QqN6Es1gSvc2sHuAfWE7rJxd913uE9VSbfXVPaMV4WCvvTLYay/RWIaxJ/HJR8+lbQtxpJbgKjFY9a+7VLi4KXvG088IANsoF3lEeyZNo1xaaKegU7UEqBOtelQ/LW4g= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=aHU5Ma+I; arc=none smtp.client-ip=198.175.65.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none 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="aHU5Ma+I" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1714417739; x=1745953739; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Xns0lP6SxmJ3DlnIEONicXGfYk2FNFFx8g3cLDe7ljs=; b=aHU5Ma+IO+rvbeut+nzYHF/UoF/CyfJGlzwPAeA/A+tTfw91QO8I8DJL ZBIaKW5WELT3ZwVeHK04AsxoyTyyG/r3IFNCud/y9nvmHbKYnMR59g7MS OOp7gnHpmnQhMj8MZ+3mek85ZHAqiJzJZDz5AfHNr48lo6/byuIRor4cB IIl8bVRIBOcp/E/wC5S6iTjF+3WWKei5YDICaWUagEQRHZXOt3IALgn5r JLZb/BHXk6y5wVy/KiXRkPguysDTrfRcuICDz54kp8u0qcDlH/tPqd+2L bzH2MbzYQCm61D3OrMbNGG5JAKNmjsNUUS4zy6NyRfMsX8XrNmebP+cJk w==; X-CSE-ConnectionGUID: RDZ4DLmbSfCoxTsKzS1YtQ== X-CSE-MsgGUID: gba0ng3QS8a0c+eT7l+WaA== X-IronPort-AV: E=McAfee;i="6600,9927,11059"; a="13875332" X-IronPort-AV: E=Sophos;i="6.07,240,1708416000"; d="scan'208";a="13875332" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Apr 2024 12:08:57 -0700 X-CSE-ConnectionGUID: oM9Y+1VmQQmBZ4+yBw1R9A== X-CSE-MsgGUID: k6NSF2EHSOK5ai2xyITYwg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,240,1708416000"; d="scan'208";a="30846312" Received: from turnipsi.fi.intel.com (HELO kekkonen.fi.intel.com) ([10.237.72.44]) by fmviesa004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Apr 2024 12:08:56 -0700 Received: from svinhufvud.ger.corp.intel.com (localhost [IPv6:::1]) by kekkonen.fi.intel.com (Postfix) with ESMTP id 06C491201CC; Mon, 29 Apr 2024 22:08:53 +0300 (EEST) From: Sakari Ailus To: linux-media@vger.kernel.org Cc: hverkuil@xs4all.nl, laurent.pinchart@ideasonboard.com, Wentong Wu Subject: [PATCH v4 2/4] media: v4l: Support obtaining link frequency via get_mbus_config Date: Mon, 29 Apr 2024 22:08:50 +0300 Message-Id: <20240429190852.1008003-3-sakari.ailus@linux.intel.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240429190852.1008003-1-sakari.ailus@linux.intel.com> References: <20240429190852.1008003-1-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 Add link_freq field to struct v4l2_mbus_config in order to pass the link frequency to the reciving sub-device. Signed-off-by: Sakari Ailus --- drivers/media/v4l2-core/v4l2-common.c | 13 +++++++++---- include/media/v4l2-mediabus.h | 2 ++ 2 files changed, 11 insertions(+), 4 deletions(-) diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c index 7f69b5a025fa..09b26ce612e9 100644 --- a/drivers/media/v4l2-core/v4l2-common.c +++ b/drivers/media/v4l2-core/v4l2-common.c @@ -503,15 +503,20 @@ s64 __v4l2_get_link_freq_ctrl(struct v4l2_ctrl_handler *handler, EXPORT_SYMBOL_GPL(__v4l2_get_link_freq_ctrl); s64 __v4l2_get_link_freq_pad(struct media_pad *pad, unsigned int mul, - unsigned int div) + unsigned int div) { + struct v4l2_mbus_config mbus_config = {}; struct v4l2_subdev *sd; + int ret; sd = media_entity_to_v4l2_subdev(pad->entity); - if (!sd) - return -ENODEV; + ret = v4l2_subdev_call(sd, pad, get_mbus_config, pad->index, + &mbus_config); + if (ret < 0 && ret != -ENOIOCTLCMD) + return ret; - return __v4l2_get_link_freq_ctrl(sd->ctrl_handler, mul, div); + return mbus_config.link_freq ?: + __v4l2_get_link_freq_ctrl(sd->ctrl_handler, mul, div); } EXPORT_SYMBOL_GPL(__v4l2_get_link_freq_pad); diff --git a/include/media/v4l2-mediabus.h b/include/media/v4l2-mediabus.h index 5bce6e423e94..2f39b52bb4d4 100644 --- a/include/media/v4l2-mediabus.h +++ b/include/media/v4l2-mediabus.h @@ -159,6 +159,7 @@ enum v4l2_mbus_type { * @bus.mipi_csi2: embedded &struct v4l2_mbus_config_mipi_csi2. * Used if the bus is MIPI Alliance's Camera Serial * Interface version 2 (MIPI CSI2). + * @link_freq: The link frequency. See also V4L2_CID_LINK_FREQ control. */ struct v4l2_mbus_config { enum v4l2_mbus_type type; @@ -167,6 +168,7 @@ struct v4l2_mbus_config { struct v4l2_mbus_config_mipi_csi1 mipi_csi1; struct v4l2_mbus_config_mipi_csi2 mipi_csi2; } bus; + u64 link_freq; }; /**