From patchwork Tue Dec 17 21:54:36 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sakari Ailus X-Patchwork-Id: 13912580 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.12]) (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 9659A1D5CCC for ; Tue, 17 Dec 2024 21:54:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.12 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734472494; cv=none; b=gqTt31v4wm+g0VQUPYWv+yPfqDePapfIC9yeN8/GfbyUTnkL4LTsHmwVuUoDVbNwHG8UxJDKRJZupu3AXjl+6yIdyEFRYQIqu9MnLgPX0JyOaOvKeF3Sx01KVRtaQZkQJr7DG9dckTxQUzCZG4/UlMBYOKzHrtpk8le4w2XSLsk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734472494; c=relaxed/simple; bh=dnY8dLwDbk5sGBosmOMA2ynX9UiRbBbfu0WIiNQh5Rw=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=UiLeylAVhgqT78tmCnkeAZBVWEUA8HH5e4N4U0XCuBRuXivqhDxh2mnjkBynb/p83ygi0N47T6tpajRkLQkfEnDtJrXrsa0Be+aO+nzXC3+Sx+nJ+mzqG/EeyaeLWhPe0gn2WbIH4Hoxod60+9+xJPushtzSv1NjOPivjc4OtO4= 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=HPgWWdP5; arc=none smtp.client-ip=192.198.163.12 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="HPgWWdP5" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1734472492; x=1766008492; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=dnY8dLwDbk5sGBosmOMA2ynX9UiRbBbfu0WIiNQh5Rw=; b=HPgWWdP5d8hST6rho2ZnGIv0omoUYqNmVIkU9sWbgcjaDRXJAOqpVYtk BgFJzo4DIuX07tFkRpIPIqEO7KWeNqqHXWgykJiMTI9G9qkqBIYB5wafD WptB3MHZGFTmOAuyvTe9va6Aun8cXzQdk4t6fyE0DiVFHjseFRvCyf0Cr fHgyFmQQDo9n7OnEC+R1Atya9/Evajx8sjJd5NgxAPRXr4bsKHsF8Bluu q7zHHpepakzOxgRcjQz7h1Xva50AZ7Nkcb/QFOW8MSRUgZJ6KM56yHHvG g8DdoxIPbnXQYPTvNVLT7CKkqi8rYx+fh2+e6cL/c2buk+msFQm5Cgszr Q==; X-CSE-ConnectionGUID: mpIPwJHsQBWwaLUuIOSxKQ== X-CSE-MsgGUID: I7As/LkoSM+h9kNvOhgwCg== X-IronPort-AV: E=McAfee;i="6700,10204,11282"; a="38861578" X-IronPort-AV: E=Sophos;i="6.12,224,1728975600"; d="scan'208";a="38861578" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by fmvoesa106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Dec 2024 13:54:51 -0800 X-CSE-ConnectionGUID: Tym3DPSETja5KG/ZBJNCeQ== X-CSE-MsgGUID: fpev4zQ4T/agNQmNof3G2A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,224,1728975600"; d="scan'208";a="97511231" Received: from turnipsi.fi.intel.com (HELO kekkonen.fi.intel.com) ([10.237.72.44]) by orviesa010-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Dec 2024 13:54:51 -0800 Received: from svinhufvud.intel.com (maa-artisokka.localdomain [192.168.240.50]) by kekkonen.fi.intel.com (Postfix) with ESMTP id 8851011F89A; Tue, 17 Dec 2024 23:54:46 +0200 (EET) Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo From: Sakari Ailus To: linux-media@vger.kernel.org Cc: Jacopo Mondi , hverkuil@xs4all.nl, laurent.pinchart@ideasonboard.com, bingbu.cao@intel.com Subject: [PATCH v8 0/9] Use V4L2 mbus config for conveying link frequency Date: Tue, 17 Dec 2024 23:54:36 +0200 Message-Id: <20241217215445.901459-1-sakari.ailus@linux.intel.com> X-Mailer: git-send-email 2.39.5 Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Hi folks, This set adds a few helpers for obtaining the link frequency from the V4L2 mbus config for devices that don't need to provide an UAPI to change it, and finally move drivers to call v4l2_get_link_freq() on a pad. since v7: - Drop ctrl_to_csi() as it's now unused. - Add patches to document how CSI-2 receiver should obtain the link frequency, moving stopping streaming out of CSI-2 specific part and adding a note on setting all fields in get_mbus_config() op. - Added a patch to convert existing users of v4l2_get_link_freq() to operate on a media pad (vs. the control handler). I'll postpone merging this however to test it a bit as it touches a number of drivers for which I have no hardware for. - Revert the order or the ivsc and ipu6 patches. - Improved documentation as discussed with Laurent in v7 review. since v6: - Remove comments on #else / #endif, it's trivial. - Add a patch to convert the ipu6 driver. since v5: - Only support pad-based operation with CONFIG_MEDIA_CONTROLLER (1st and 2nd patches). since v4: - Rework documentation a little. - Remove wrong alignment change in 2nd patch. - Move link_freq field after the type field in struct v4l2_mbus_config. since v3: - Add back missing ret I accidentally removed rather than moved to the 2nd patch. since v2: - Switch to V4L2 mbus config for conveying the link frequency. since v1: - Add a new 64-bit integer control V4L2_CID_CUR_LINK_FREQ instead of re-using V4L2_CID_LINK_FREQ. Sakari Ailus (9): media: v4l: Support passing media pad argument to v4l2_get_link_freq() media: v4l: Support obtaining link frequency via get_mbus_config media: Documentation: Update link frequency driver documentation media: Documentation: tx-rx: Move transmitter control out of CSI-2 part media: Documentation: Receiver drivers should call v4l2_get_link_freq() media: Documentation: Add a note to set all fields in get_mbus_config op media: intel/ipu6: Obtain link frequency from the remote subdev pad media: ivsc: csi: Obtain link frequency from the media pad media: v4l: Convert the users of v4l2_get_link_freq to call it on a pad Documentation/driver-api/media/tx-rx.rst | 26 ++++--- drivers/media/i2c/st-mipid02.c | 5 +- drivers/media/i2c/tc358746.c | 4 +- drivers/media/pci/intel/ipu3/ipu3-cio2.c | 11 ++- drivers/media/pci/intel/ipu6/ipu6-isys-csi2.c | 12 +-- drivers/media/pci/intel/ivsc/mei_csi.c | 78 +++++++------------ drivers/media/platform/cadence/cdns-csi2rx.c | 4 +- drivers/media/platform/nxp/imx-mipi-csis.c | 5 +- drivers/media/platform/nxp/imx8mq-mipi-csi2.c | 11 ++- .../media/platform/qcom/camss/camss-vfe-17x.c | 8 +- .../platform/qcom/camss/camss-vfe-gen1.c | 8 +- drivers/media/platform/qcom/camss/camss.c | 17 ++-- drivers/media/platform/qcom/camss/camss.h | 2 +- .../media/platform/raspberrypi/rp1-cfe/cfe.c | 4 +- drivers/media/platform/st/stm32/stm32-csi.c | 4 +- drivers/media/platform/ti/cal/cal-camerarx.c | 3 +- drivers/media/platform/ti/cal/cal.c | 4 +- drivers/media/platform/ti/cal/cal.h | 1 + drivers/media/v4l2-core/v4l2-common.c | 32 +++++++- include/media/v4l2-common.h | 19 ++++- include/media/v4l2-mediabus.h | 2 + include/media/v4l2-subdev.h | 5 +- 22 files changed, 155 insertions(+), 110 deletions(-) base-commit: c2bb0ff95c29040483ac93b4c10fdf1bd8071b9d