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* [PATCH 0/3] spi: spi-geni-qcom: Avoid a bunch of per-transfer overhead
@ 2020-07-02  0:45 Douglas Anderson
  2020-07-02  0:45 ` [PATCH 1/3] spi: spi-geni-qcom: Avoid clock setting if not needed Douglas Anderson
                   ` (3 more replies)
  0 siblings, 4 replies; 15+ messages in thread
From: Douglas Anderson @ 2020-07-02  0:45 UTC (permalink / raw)
  To: Mark Brown, Andy Gross, Bjorn Andersson
  Cc: akashast, linux-arm-msm, mkshah, swboyd, georgi.djakov, ctheegal,
	mka, Douglas Anderson, linux-kernel, linux-spi

This series tries to reduce a whole bunch of overhead in each SPI
transfer.  Much of this overhead is new with the recent interconnect
changes, but even without those changes we still had some overhead
that we could avoid.  Let's avoid all of it.

These changes are atop the Qualcomm tree to avoid merge conflicts.  If
they look good, the most expedient way to land them is probably to get
Ack's from Mark and land then via the Qualcomm tree.

Most testing was done on the Chrome OS 5.4 tree, but sanity check was
done on mainline.


Douglas Anderson (3):
  spi: spi-geni-qcom: Avoid clock setting if not needed
  spi: spi-geni-qcom: Set an autosuspend delay of 250 ms
  spi: spi-geni-qcom: Get rid of most overhead in prepare_message()

 drivers/spi/spi-geni-qcom.c | 67 ++++++++++++++++++-------------------
 1 file changed, 32 insertions(+), 35 deletions(-)

-- 
2.27.0.383.g050319c2ae-goog


^ permalink raw reply	[flat|nested] 15+ messages in thread

end of thread, other threads:[~2020-07-08 17:02 UTC | newest]

Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-07-02  0:45 [PATCH 0/3] spi: spi-geni-qcom: Avoid a bunch of per-transfer overhead Douglas Anderson
2020-07-02  0:45 ` [PATCH 1/3] spi: spi-geni-qcom: Avoid clock setting if not needed Douglas Anderson
2020-07-07 10:16   ` Akash Asthana
2020-07-07 12:08   ` Mark Brown
2020-07-07 12:53     ` Doug Anderson
2020-07-08 10:01       ` Mark Brown
2020-07-08 15:22         ` Doug Anderson
2020-07-08 17:02           ` Mark Brown
2020-07-08 12:48   ` Mark Brown
2020-07-02  0:45 ` [PATCH 2/3] spi: spi-geni-qcom: Set an autosuspend delay of 250 ms Douglas Anderson
2020-07-07 10:18   ` Akash Asthana
2020-07-02  0:45 ` [PATCH 3/3] spi: spi-geni-qcom: Get rid of most overhead in prepare_message() Douglas Anderson
2020-07-07 13:37   ` Akash Asthana
2020-07-08 12:49   ` Mark Brown
2020-07-07 14:17 ` [PATCH 0/3] spi: spi-geni-qcom: Avoid a bunch of per-transfer overhead Mark Brown

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