From: Herman van Hazendonk <github.com@herrie.org>
To: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Sakari Ailus <sakari.ailus@linux.intel.com>,
Hans Verkuil <hverkuil+cisco@kernel.org>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>,
linux-media@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
Herman van Hazendonk <github.com@herrie.org>
Subject: [PATCH 0/2] media: i2c: add Aptina MT9M113 SoC sensor driver
Date: Fri, 5 Jun 2026 05:20:15 +0200 [thread overview]
Message-ID: <cover.1780601033.git.github.com@herrie.org> (raw)
This series adds a V4L2 subdev driver and DT binding for the Aptina
MT9M113, a 1.3 Mpx SoC sensor with an on-chip ISP and a small MCU
running a "SOC1040" firmware that performs auto-exposure, auto white
balance and lens-shading correction. The sensor talks to the host
over MIPI CSI-2 (1 or 2 data lanes); register access is over I2C
using the Qualcomm CCI helper.
Hardware layout exposed to userspace:
+-------------------+ +-----------------+
| Pixel Array (PA) |--->| IFP / ISP |--->[CSI-2]
| sink-less subdev | | MCU + pipe |
+-------------------+ +-----------------+
PA carries V4L2_CID_PIXEL_RATE and V4L2_CID_LINK_FREQ so that
downstream receivers walking the graph from the CSIPHY (camss does
this) find them on the entity flagged MEDIA_ENT_F_CAM_SENSOR.
V4L2 controls implemented:
- exposure / gain / hflip / vflip
- test pattern
- V4L2_CID_COLORFX (sepia / mono / negative / aqua / vivid)
- V4L2_CID_POWER_LINE_FREQUENCY (50/60 Hz flicker avoidance)
Tested on a HP TouchPad (APQ8060, MSM8x60 family) with the on-board
front 1.3 Mpx MT9M113. Probes cleanly, both PA and IFP subdevs
register, csiphy_stream_on() picks up link_freq from PA, and the
preview pipeline up through CAMSS produces frames. A bounded
3-attempt retry around s_stream(1) handles a residual silicon-level
wedge that occasionally leaves the MCU's SEQ_CMD in an inconsistent
state on cold start.
The DTS patches that enable the sensor on the HP TouchPad will be
sent separately to the ARM/DTS tree.
Herman van Hazendonk (2):
dt-bindings: media: i2c: add aptina,mt9m113
media: i2c: add Aptina MT9M113 1.3 Mpx SoC sensor driver
.../bindings/media/i2c/aptina,mt9m113.yaml | 127 +
drivers/media/i2c/Kconfig | 12 +
drivers/media/i2c/Makefile | 1 +
drivers/media/i2c/mt9m113.c | 2971 +++++++++++++++++
4 files changed, 3111 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/i2c/aptina,mt9m113.yaml
create mode 100644 drivers/media/i2c/mt9m113.c
--
2.43.0
WARNING: multiple messages have this Message-ID (diff)
From: Herman van Hazendonk <github.com@herrie.org>
To: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-media@vger.kernel.org,
Herman van Hazendonk <github.com@herrie.org>
Subject: [PATCH 0/2] media: i2c: add Aptina MT9M113 SoC sensor driver
Date: Fri, 5 Jun 2026 05:20:37 +0200 [thread overview]
Message-ID: <cover.1780601033.git.github.com@herrie.org> (raw)
Message-ID: <20260605032037.hRzBNOxqa9W0Ac76LS4qh3BtKHMfQ4Xs3SwxsgKcaeI@z> (raw)
This series adds a V4L2 subdev driver and DT binding for the Aptina
MT9M113, a 1.3 Mpx SoC sensor with an on-chip ISP and a small MCU
running a "SOC1040" firmware that performs auto-exposure, auto white
balance and lens-shading correction. The sensor talks to the host
over MIPI CSI-2 (1 or 2 data lanes); register access is over I2C
using the Qualcomm CCI helper.
Hardware layout exposed to userspace:
+-------------------+ +-----------------+
| Pixel Array (PA) |--->| IFP / ISP |--->[CSI-2]
| sink-less subdev | | MCU + pipe |
+-------------------+ +-----------------+
PA carries V4L2_CID_PIXEL_RATE and V4L2_CID_LINK_FREQ so that
downstream receivers walking the graph from the CSIPHY (camss does
this) find them on the entity flagged MEDIA_ENT_F_CAM_SENSOR.
V4L2 controls implemented:
- exposure / gain / hflip / vflip
- test pattern
- V4L2_CID_COLORFX (sepia / mono / negative / aqua / vivid)
- V4L2_CID_POWER_LINE_FREQUENCY (50/60 Hz flicker avoidance)
Tested on a HP TouchPad (APQ8060, MSM8x60 family) with the on-board
front 1.3 Mpx MT9M113. Probes cleanly, both PA and IFP subdevs
register, csiphy_stream_on() picks up link_freq from PA, and the
preview pipeline up through CAMSS produces frames. A bounded
3-attempt retry around s_stream(1) handles a residual silicon-level
wedge that occasionally leaves the MCU's SEQ_CMD in an inconsistent
state on cold start.
The DTS patches that enable the sensor on the HP TouchPad will be
sent separately to the ARM/DTS tree.
Herman van Hazendonk (2):
dt-bindings: media: i2c: add aptina,mt9m113
media: i2c: add Aptina MT9M113 1.3 Mpx SoC sensor driver
.../bindings/media/i2c/aptina,mt9m113.yaml | 127 +
drivers/media/i2c/Kconfig | 12 +
drivers/media/i2c/Makefile | 1 +
drivers/media/i2c/mt9m113.c | 2971 +++++++++++++++++
4 files changed, 3111 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/i2c/aptina,mt9m113.yaml
create mode 100644 drivers/media/i2c/mt9m113.c
--
2.43.0
next reply other threads:[~2026-06-05 3:20 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-05 3:20 Herman van Hazendonk [this message]
2026-06-05 3:20 ` [PATCH 0/2] media: i2c: add Aptina MT9M113 SoC sensor driver Herman van Hazendonk
2026-06-05 3:20 ` [PATCH 1/2] dt-bindings: media: i2c: add aptina,mt9m113 Herman van Hazendonk
2026-06-05 3:20 ` Herman van Hazendonk
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=cover.1780601033.git.github.com@herrie.org \
--to=github.com@herrie.org \
--cc=conor+dt@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=hverkuil+cisco@kernel.org \
--cc=konrad.dybcio@oss.qualcomm.com \
--cc=krzk+dt@kernel.org \
--cc=laurent.pinchart@ideasonboard.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-media@vger.kernel.org \
--cc=mchehab@kernel.org \
--cc=robh@kernel.org \
--cc=sakari.ailus@linux.intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.