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authorUlrich Hecht <ulrich.hecht+renesas@gmail.com>2018-02-15 13:02:41 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-02-28 13:40:22 +0100
commitb96408b47480f9947eee933fcce35ed4ae74cc9a (patch)
tree04da2939647c4537ea228113e91637205dc64d39 /kernel
parent08fb00c64f3401b4ecc18a7395cf302b8d8e12fd (diff)
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serial: sh-sci: use hrtimer for receive timeout
High latencies of classic timers cause performance issues for high- speed serial transmissions. This patch transforms rx_timer into an hrtimer to reduce the minimum latency. Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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