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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2018-05-06 16:19:18 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2018-06-28 14:56:51 +0200 |
| commit | 0b964d183cbf3f95a062ad9f3eec87ffa2790558 (patch) | |
| tree | 4f76936f81b668b53aef8bf7065171ddec7f3b3c /drivers/devfreq/rk3399_dmc.c | |
| parent | media: ov5640: add support of module orientation (diff) | |
| download | linux-0b964d183cbf3f95a062ad9f3eec87ffa2790558.tar.xz linux-0b964d183cbf3f95a062ad9f3eec87ffa2790558.zip | |
media: ov772x: allow i2c controllers without I2C_FUNC_PROTOCOL_MANGLING
The ov772x driver only works when the i2c controller have
I2C_FUNC_PROTOCOL_MANGLING. However, many i2c controller drivers don't
support it.
The reason that the ov772x requires I2C_FUNC_PROTOCOL_MANGLING is that
it doesn't support repeated starts.
This changes the reading ov772x register method so that it doesn't
require I2C_FUNC_PROTOCOL_MANGLING by calling two separated i2c messages.
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/devfreq/rk3399_dmc.c')
0 files changed, 0 insertions, 0 deletions