[PATCH 03/10] dma: imx-sdma: clear BD_RROR flag before pass it to sdma script

2016-05-16 Thread Jiada Wang
Previously in cyclic dma mode when sdma transfer fails for one buffer, it will mask BD_RROR flag for that buffer descriptor (BD). This flag won't be cleared unless a new cyclic dma transfer is prepared, so if sdma script next time iterates to the same BD, even this time the transfer is successful,

[PATCH 03/10] dma: imx-sdma: clear BD_RROR flag before pass it to sdma script

2016-05-16 Thread Jiada Wang
Previously in cyclic dma mode when sdma transfer fails for one buffer, it will mask BD_RROR flag for that buffer descriptor (BD). This flag won't be cleared unless a new cyclic dma transfer is prepared, so if sdma script next time iterates to the same BD, even this time the transfer is successful,

[PATCH 03/10] dma: imx-sdma: clear BD_RROR flag before pass it to sdma script

2016-05-16 Thread Jiada Wang
Previously in cyclic dma mode when sdma transfer fails for one buffer, it will mask BD_RROR flag for that buffer descriptor (BD). This flag won't be cleared unless a new cyclic dma transfer is prepared, so if sdma script next time iterates to the same BD, even this time the transfer is successful,