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    • N
      dmaengine: at_hdmac: pause: no need to wait for FIFO empty · de7a2f9f
      Nicolas Ferre 提交于
      With the addition of the "pause" feature, an active wait was introduced
      to check the "FIFO empty" event. This event was not always happening and
      a timout contition was needed.
      But, in some cases, this event depend on the peripheral connected to the
      channel that is paused: FIFO becomes empty if the peripheral consumes data.
      The timeout is pretty difficult to evaluate. Moreover, this check is not
      needed.
      In conclusion, it seems sensible to entirely remove the checking of
      "FIFO empty" status when pausing.
      Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>
      [commit msg edited for grammer]
      Signed-off-by: NVinod Koul <vinod.koul@intel.com>
      de7a2f9f
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