diff options
| author | Douglas Anderson <dianders@chromium.org> | 2020-07-01 17:45:08 -0700 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-07-07 14:11:01 +0100 |
| commit | cfdab2cd85ecd3f98837e5cc59dd3319cd9b6fff (patch) | |
| tree | 27f0cf2ffa948b5ab68d20f15aebf293689901d2 /drivers/spi/spi-geni-qcom.c | |
| parent | d93529962d2aaee599157911894af2a791979e9f (diff) | |
spi: spi-geni-qcom: Set an autosuspend delay of 250 ms
In commit 0e3b8a81f5df ("spi: spi-geni-qcom: Add interconnect
support") the spi_geni_runtime_suspend() and spi_geni_runtime_resume()
became a bit slower. Measuring on my hardware I see numbers in the
hundreds of microseconds now.
Let's use autosuspend to help avoid some of the overhead. Now if
we're doing a bunch of transfers we won't need to be constantly
chruning.
The number 250 ms for the autosuspend delay was picked a bit
arbitrarily, so if someone has measurements showing a better value we
could easily change this.
Fixes: 0e3b8a81f5df ("spi: spi-geni-qcom: Add interconnect support")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Akash Asthana<akashast@codeaurora.org>
Link: https://lore.kernel.org/r/20200701174506.2.I9b8f6bb1e7e6d8847e2ed2cf854ec55678db427f@changeid
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-geni-qcom.c')
| -rw-r--r-- | drivers/spi/spi-geni-qcom.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/spi/spi-geni-qcom.c b/drivers/spi/spi-geni-qcom.c index e99a9d57449f..1d96a7f32fda 100644 --- a/drivers/spi/spi-geni-qcom.c +++ b/drivers/spi/spi-geni-qcom.c @@ -619,6 +619,8 @@ static int spi_geni_probe(struct platform_device *pdev) init_completion(&mas->cancel_done); init_completion(&mas->abort_done); spin_lock_init(&mas->lock); + pm_runtime_use_autosuspend(&pdev->dev); + pm_runtime_set_autosuspend_delay(&pdev->dev, 250); pm_runtime_enable(dev); ret = spi_geni_init(mas); |