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(parent: 3b96304) | patch
serial: sh-sci: Pause DMA engine and get DMA status again
authorMuhammad Hamza Farooq <mfarooq@visteon.com>
Fri, 18 Sep 2015 11:08:32 +0000 (13:08 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 4 Oct 2015 16:36:10 +0000 (17:36 +0100)
commite7327c09def48ccfd204025726f11b57a19a9c24
treeeddd5d76fd117cbe60f27f25558b907547150a3ctree | snapshot (tar.gz zip)
parent3b963042b64f5de3c63a1ebcbe2cad6b1597b8b9commit | diff
serial: sh-sci: Pause DMA engine and get DMA status again

Occasionally, DMA transaction completes _after_ DMA engine is stopped.
Verify if the transaction has not finished before forcing the engine to
stop and push the data

Signed-off-by: Muhammad Hamza Farooq <mfarooq@visteon.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/sh-sci.c diff | blob | blame | history