[PATCH 3.4 11/12] serial: amba-pl011: use port lock to guard control register access

3.4-stable review patch. If anyone has any objections, please let me know. -- From: Jon Medhurst commit fe43390702a1b5741fdf217063b05c7612b38303 upstream. When the pl011 is being used for a console, pl011_console_write forces the control register (CR) to enable the UART for

[PATCH 3.4 11/12] serial: amba-pl011: use port lock to guard control register access

3.4-stable review patch. If anyone has any objections, please let me know. -- From: Jon Medhurst t...@linaro.org commit fe43390702a1b5741fdf217063b05c7612b38303 upstream. When the pl011 is being used for a console, pl011_console_write forces the control register (CR) to enable