These series contain a work-around for hardware RX flood in first 2 commits, and then further cleanups and optimizations of the receive IRQ handler. WARNING: the flood fix is extensively tested with older version of the kernel with DMA turned off. The DMA path is tested only a bit, as DMA has receive problems on my kernel version. Sergey Organov (8): serial: imx: factor-out common code to imx_uart_soft_reset() serial: imx: work-around for hardware RX flood serial: imx: do not sysrq broken chars serial: imx: do not break from FIFO reading loop prematurely serial: imx: remove redundant USR2 read from FIFO reading loop serial: imx: stop using USR2 in FIFO reading loop serial: imx: use readl() to optimize FIFO reading loop serial: imx: refine local variables in rxint() drivers/tty/serial/imx.c | 227 ++++++++++++++++++++++++--------------- 1 file changed, 141 insertions(+), 86 deletions(-) -- 2.30.1
