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d2802865f7
Similar to usbhs_status_get_ctrl_stage(), *_get_device_state() is not supposed to return any error code since its return value is the DVSQ bitfield of the INTSTS0 register. According to SoC HW manual rev1.00, every single value of DVSQ[2:0] is valid and none is an error: ----8<---- Device State 000: Powered state 001: Default state 010: Address state 011: Configuration state 1xx: Suspended state ----8<---- Hence, simplify the function body. The motivation behind dropping the switch/case construct is being able to implement reading the suspended state. The latter (based on the above DVSQ[2:0] description) doesn't have a unique value, but is rather a list of states (which makes switch/case less suitable for reading/validating it): 100: (Suspended) Powered state 101: (Suspended) Default state 110: (Suspended) Address state 111: (Suspended) Configuration state Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com> Signed-off-by: Veeraiyan Chidambaram <veeraiyan.chidambaram@in.bosch.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> |
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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.