spi: spi-qcom-qspi: Avoid clock setting if not needed

As per recent changes to the spi-qcom-qspi, now when we set the clock
we'll call into the interconnect framework and also call the OPP API.
Those are expensive operations.  Let's avoid calling them if possible.
This has a big impact on getting transfer rates back up to where they
were (or maybe slightly better) before those patches landed.

Fixes: cff80645d6d3 ("spi: spi-qcom-qspi: Add interconnect support")
Signed-off-by: Douglas Anderson <[email protected]>
Acked-by: Mark Brown <[email protected]>
Reviewed-by: Rajendra Nayak <[email protected]>
Tested-by: Rajendra Nayak <[email protected]>
Reviewed-by: Mukesh Kumar Savaliya <[email protected]>
Reviewed-by: Akash Asthana <[email protected]>
Link: https://lore.kernel.org/r/20200709075113.v2.1.Ia7cb4f41ce93d37d0a764b47c8a453ce9e9c70ef@changeid
Signed-off-by: Bjorn Andersson <[email protected]>

0 files changed, 0 insertions, 0 deletions