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From: Sakari Ailus <sakari.ailus@linux.intel.com>
To: linux-media@vger.kernel.org
Cc: hverkuil@xs4all.nl, laurent.pinchart@ideasonboard.com,
	Wentong Wu <wentong.wu@intel.com>
Subject: [PATCH v2 0/3] Use INTEGER64 type for MEI CSI LINK_FREQ control
Date: Fri, 26 Apr 2024 17:55:35 +0300	[thread overview]
Message-ID: <20240426145538.654212-1-sakari.ailus@linux.intel.com> (raw)

Hi folks,

An integer menu isn't a useful control type for conveying the frequency
depending on an external device to the receiver. Instead, in the MEI CSI
driver, just obtain the link frequency from the upsteam sub-device and
pass it on to the receiver.

The v4l2_get_link_freq() is changed to add support for this and it's
documented as well.

since v1:

- Add a new 64-bit integer control V4L2_CID_CUR_LINK_FREQ instead of
  re-using V4L2_CID_LINK_FREQ.

Sakari Ailus (3):
  media: Documentation: v4l: Add CUR_LINK_FREQ control
  media: v4l: Support obtaining link frequency from CUR_LINK_FREQ
    control
  media: ivsc: csi: Fix link frequency control behaviour

 .../media/v4l/ext-ctrls-image-process.rst     |  4 ++++
 drivers/media/pci/intel/ivsc/mei_csi.c        | 24 ++++++-------------
 drivers/media/v4l2-core/v4l2-common.c         |  6 ++++-
 drivers/media/v4l2-core/v4l2-ctrls-defs.c     |  5 ++++
 include/uapi/linux/v4l2-controls.h            |  1 +
 5 files changed, 22 insertions(+), 18 deletions(-)


base-commit: 6612d1ae37b52d37d1d515d7c5110b9f3afe94d2
-- 
2.39.2


             reply	other threads:[~2024-04-26 14:55 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-26 14:55 Sakari Ailus [this message]
2024-04-26 14:55 ` [PATCH v2 1/3] media: Documentation: v4l: Add CUR_LINK_FREQ control Sakari Ailus
2024-04-26 14:55 ` [PATCH v2 2/3] media: v4l: Support obtaining link frequency from " Sakari Ailus
2024-04-26 14:55 ` [PATCH v2 3/3] media: ivsc: csi: Fix link frequency control behaviour Sakari Ailus
2024-04-28  3:22   ` Wu, Wentong
2024-04-28 23:20 ` [PATCH v2 0/3] Use INTEGER64 type for MEI CSI LINK_FREQ control Laurent Pinchart
2024-04-29  7:28   ` Sakari Ailus
2024-04-29  7:30     ` Hans Verkuil
2024-04-29  7:50       ` Sakari Ailus

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