This fixes a bug whereby the AUART was shutdown while bytes were still waiting in the DMA buffer to be transmistted. Changes since v2: * Added Reviewed/Acked-by tags to first commit. * Move tx_empty callback up to avoid forward declaration. * Move BUSY flag check to tx_empty callback to avoid check on shutdown call. Changes since v1: * Split the patch in two: one to set the fifosize to the DMA buffer size, and another to wait for the FIFO to empty before disabling the AUART. * The wait for the fifo to empty is now independent of DMA being enabled. * Fix bug on readl() call * Remove bad URL in commit log Hector Palacios (2): serial: mxs-auart: set the FIFO size to DMA buffer size serial: mxs-auart: wait for FIFO to flush before shutdown drivers/tty/serial/mxs-auart.c | 34 +++++++++++++++++++++++++--------- 1 file changed, 25 insertions(+), 9 deletions(-) -- 1.8.4 -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
