linux-kernel - [PATCH v2 0/7] media: i2c: Add support for RDACM21 camera module

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Date:   Thu, 15 Oct 2020 20:27:03 +0200
From:   Jacopo Mondi <jacopo+renesas@...ndi.org>
To:     kieran.bingham+renesas@...asonboard.com,
        laurent.pinchart+renesas@...asonboard.com,
        niklas.soderlund+renesas@...natech.se
Cc:     Jacopo Mondi <jacopo+renesas@...ndi.org>,
        linux-media@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
        linux-kernel@...r.kernel.org, Hyun Kwon <hyunk@...inx.com>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Subject: [PATCH v2 0/7] media: i2c: Add support for RDACM21 camera module

Hello,
  v2 of support for RDACM21 camera module in this series.

Patch [1/7] introduces the camera module driver.
Only change compared to v1:
- Increase pixel clock to 55MHz

>From [2/7] to [5/7] there's a proposal of a possible way to support
both RDACM20 and RDACM21 with the same deserializer driver.
See v1 cover letter for details:
https://www.spinics.net/lists/linux-renesas-soc/msg52886.html

I have tested on Eagle V3M with 4 RDACM21, but the whole point of
this series is to retain compatibility with RDACM20.

For this reason I have included 2 patches on top, not intended for merge
that re-propose DTS support for the MAXIM max9286 expansion board connected
to Salvator-X and add the newly introduced property to the DTS file.

Kieran, I know you have a working setup with RDACM20, the final two patches are
meant for ease your testing. Can you give this series a spin ?
For your convenience I pushed a branch
git://jmondi.org/linux #gmsl/jmondi/renesas-drivers-2020-10-13-v5.9/rdacm21_high-threshold

Series based on latest renesas-drivers tag: renesas-drivers-2020-10-13-v5.9

If I get a confirmation this setup works on Salvator-X, I'll submit the new
property for inclusion to devicetree people, which I have left out at the
moment.

Thanks
  j

Jacopo Mondi (6):
  media: i2c: Add driver for RDACM21 camera module
  dt-bindings: media: max9286: Document 'maxim,high-threshold'
  media: i2c: max9286: Break-out reverse channel setup
  media: i2c: max9286: Make channel amplitude programmable
  media: i2c: max9286: Configure reverse channel amplitude
  [DNI] arm64: dts: renesas: salvator-x-max9286: Use high-threshold

Laurent Pinchart (1):
  arm64: dts: renesas: salvator-x: Add MAX9286 expansion board

 .../bindings/media/i2c/maxim,max9286.yaml     |  15 +
 MAINTAINERS                                   |  12 +
 .../boot/dts/renesas/salvator-x-max9286.dtsi  | 396 +++++++++++++
 drivers/media/i2c/Kconfig                     |  13 +
 drivers/media/i2c/Makefile                    |   2 +
 drivers/media/i2c/max9286.c                   |  54 +-
 drivers/media/i2c/rdacm21.c                   | 538 ++++++++++++++++++
 7 files changed, 1020 insertions(+), 10 deletions(-)
 create mode 100644 arch/arm64/boot/dts/renesas/salvator-x-max9286.dtsi
 create mode 100644 drivers/media/i2c/rdacm21.c

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2.28.0