It the device is probed in non-zero ACPI D state, the module identification is delayed until the first streamon. The module identification has two parts: deviceID and version. To rea the version we have to enable OTP read. This cannot be done during streamon, becase it modifies REG_MODE_SELECT. Since the driver has the same behaviour for all the module versions, do not read the module version from the sensor's OTP. Cc: stable@vger.kernel.org Fixes: 0e014f1a8d54 ("media: ov8856: support device probe in non-zero ACPI D state") Signed-off-by: Ricardo Ribalda <ribalda@chromium.org> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.
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