From: <dongchun.zhu@mediatek.com>
To: <mchehab@kernel.org>, <andriy.shevchenko@linux.intel.com>,
<robh+dt@kernel.org>, <mark.rutland@arm.com>,
<sakari.ailus@linux.intel.com>, <drinkcat@chromium.org>,
<tfiga@chromium.org>, <matthias.bgg@gmail.com>,
<bingbu.cao@intel.com>
Cc: <srv_heupstream@mediatek.com>,
<linux-mediatek@lists.infradead.org>,
<linux-arm-kernel@lists.infradead.org>, <sj.huang@mediatek.com>,
<linux-media@vger.kernel.org>, <devicetree@vger.kernel.org>,
<sam.hung@mediatek.com>, <shengnan.wang@mediatek.com>,
<dongchun.zhu@mediatek.com>
Subject: [V2, 0/2] media: i2c: add support for DW9768 VCM driver
Date: Thu, 5 Sep 2019 15:21:40 +0800 [thread overview]
Message-ID: <20190905072142.14606-1-dongchun.zhu@mediatek.com> (raw)
From: Dongchun Zhu <dongchun.zhu@mediatek.com>
Hello,
Add a v4l2 sub-device driver for Dongwoon's DW9768 lens voice coil.
This is a voice coil module using the i2c bus to control the focus position.
The DW9768 can control the position with 10 bits value and
consists of two 8 bit registers show as below.
register 0x04(DW9768_REG_POSITION):
+---+---+---+---+---+---+---+---+
|D07|D06|D05|D04|D03|D02|D01|D00|
+---+---+---+---+---+---+---+---+
register 0x03:
+---+---+---+---+---+---+---+---+
|---|---|---|---|---|---|D09|D08|
+---+---+---+---+---+---+---+---+
This driver supports:
- set DW9768 to standby mode once suspend and turn it back to active if resume
- set the position via V4L2_CID_FOCUS_ABSOLUTE ctrl
Mainly changes of v2 are addressing the comments from Tomasz, Bingbu, Andy,
including,
- Use i2c_smbus_write_byte_data/i2c_smbus_write_block_data to write I2C register
- Adopt the runtime PM suspend/resume callbacks to powering off/on
- Check the PM runtime status before powering off in dw9768_remove function
- Add one more regulator vin for the I2C interface
- Remove or refine redundant log print
- Fix other reviewed issues in v1
Dongchun Zhu (2):
media: i2c: dw9768: Add DT support and MAINTAINERS entry
media: i2c: Add DW9768 VCM driver
.../bindings/media/i2c/dongwoon,dw9768.txt | 9 +
MAINTAINERS | 8 +
drivers/media/i2c/Kconfig | 10 +
drivers/media/i2c/Makefile | 1 +
drivers/media/i2c/dw9768.c | 349 +++++++++++++++++++++
5 files changed, 377 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/i2c/dongwoon,dw9768.txt
create mode 100644 drivers/media/i2c/dw9768.c
--
2.9.2
next reply other threads:[~2019-09-05 7:21 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-05 7:21 dongchun.zhu [this message]
2019-09-05 7:21 ` [V2, 1/2] media: i2c: dw9768: Add DT support and MAINTAINERS entry dongchun.zhu
2019-09-05 10:14 ` Andy Shevchenko
2019-09-05 10:48 ` Sakari Ailus
2019-09-05 11:35 ` Andy Shevchenko
2019-09-05 11:49 ` Javier Martinez Canillas
2019-09-05 12:00 ` Sakari Ailus
2019-09-05 12:24 ` Andy Shevchenko
2019-09-17 20:47 ` Rob Herring
2019-09-05 7:21 ` [V2, 2/2] media: i2c: Add DW9768 VCM driver dongchun.zhu
2019-09-05 8:21 ` Sakari Ailus
2019-09-05 10:19 ` Andy Shevchenko
2019-09-05 10:40 ` Sakari Ailus
2019-09-05 10:57 ` Javier Martinez Canillas
2019-09-05 11:36 ` Andy Shevchenko
2019-09-05 8:28 ` Tomasz Figa
2019-09-05 10:26 ` Andy Shevchenko
[not found] ` <e8b59857e39744a6acfe5d862f3ac8d5@mtkmbs05n2.mediatek.inc>
2020-01-20 8:34 ` Dongchun Zhu
2019-09-07 22:12 ` kbuild test robot
2019-10-09 4:40 ` Tomasz Figa
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