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The scscr platform data field is used by the driver in three locations. One of them masks out all bits except SCSCR_REIE. The two other are the set_termios handler and the console write handler. The set_termios handler calls sci_start_rx() to enable the receiver, which sets the RIE bit unconditionally. It then calls sci_port_disable() that effectively disables both the transmitter and the receiver. The TIE bit will thus get set later when the serial cores reenables the serial port. The console write handler runs with interrupts disabled, and saves and restores the SCSCR register value. The RIE and TIE bits are thus not needed there. The bits are thus not necessary in platform data, remove them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.