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author | Ulf Hansson <ulf.hansson@linaro.org> | 2020-05-08 11:52:18 +0200 |
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committer | Ulf Hansson <ulf.hansson@linaro.org> | 2020-05-28 11:22:14 +0200 |
commit | 3eea697c1da58f169b3abfebaa6d07cff7cb1c8d (patch) | |
tree | ca6513309184aa1e60ec10964b774dceb8eed344 /Kbuild | |
parent | eadb7897652d5bf9fbab393b3774598a04846aff (diff) | |
download | linux-3eea697c1da58f169b3abfebaa6d07cff7cb1c8d.tar.gz linux-3eea697c1da58f169b3abfebaa6d07cff7cb1c8d.tar.bz2 linux-3eea697c1da58f169b3abfebaa6d07cff7cb1c8d.zip |
mmc: sdricoh_cs: Throttle polling rate for commands
Rather than to poll in a busy-loop, let's convert into using
read_poll_timeout() and insert a small delay between each polling attempts.
In particular, this avoids hogging the CPU.
Additionally, to convert to read_poll_timeout() we also need to switch from
using a specific number of polling attempts, into a specific timeout in us
instead. The previous 100000 attempts, is translated into a total timeout
of total 1s, as that seemed like reasonable value to pick.
Cc: Sascha Sommer <saschasommer@freenet.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20200508095218.14177-1-ulf.hansson@linaro.org
Diffstat (limited to 'Kbuild')
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