linux-kernel - [PATCH v5 0/4] DCMI BT656 parallel bus mode support

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Message-ID: <1604511132-4014-1-git-send-email-hugues.fruchet@st.com>
Date:   Wed, 4 Nov 2020 18:32:08 +0100
From:   Hugues Fruchet <hugues.fruchet@...com>
To:     Alexandre Torgue <alexandre.torgue@...com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans Verkuil <hverkuil@...all.nl>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Rob Herring <robh+dt@...nel.org>
CC:     <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-media@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        Hugues Fruchet <hugues.fruchet@...com>,
        Alain Volmat <alain.volmat@...com>,
        Yannick Fertre <yannick.fertre@...com>,
        Philippe CORNU <philippe.cornu@...com>
Subject: [PATCH v5 0/4] DCMI BT656 parallel bus mode support

Add support of BT656 embedded synchronization bus.
This mode allows to save hardware synchro lines hsync & vsync
by replacing them with synchro codes embedded in data stream.
Add "bus-type" property and make it required so that there is no
ambiguity between parallel mode (bus-type=5) and BT656 mode (bus-type=6).

===========
= history =
===========
version 5:
  - Add revisited bindings and devicetree with explicit use of "bus-type"

version 4:
  - Fix typo in commit message

version 3:
  - Fix bus_width print to %u as per Sakari comment

version 2:
  - As per Sakari remark, revisit commit message and document
    BT656 parallel bus mode in bindings

version 1:
  - Initial submission

Hugues Fruchet (4):
  media: stm32-dcmi: add support of BT656 bus
  media: dt-bindings: media: st,stm32-dcmi: add support of BT656 bus
  ARM: dts: stm32: set bus-type in DCMI endpoint for stm32mp157c-ev1
    board
  ARM: dts: stm32: set bus-type in DCMI endpoint for stm32429i-eval
    board

 .../devicetree/bindings/media/st,stm32-dcmi.yaml   | 38 ++++++++++++++++++++++
 arch/arm/boot/dts/stm32429i-eval.dts               |  1 +
 arch/arm/boot/dts/stm32mp157c-ev1.dts              |  1 +
 drivers/media/platform/stm32/stm32-dcmi.c          | 37 +++++++++++++++++++--
 4 files changed, 75 insertions(+), 2 deletions(-)

-- 
2.7.4