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| author | Dong Aisheng <aisheng.dong@nxp.com> | 2016-07-12 07:46:17 (GMT) |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2016-07-25 08:34:55 (GMT) |
| commit | f37b20ebc4bc7c41e6fe1f4af6a62e9de70b771b (patch) | |
| tree | d1910e5d1867242c5e0e7b12a017850b46dc4a61 /drivers/extcon | |
| parent | 152f05c783438b57bb42e8171aa871c49ae5b2d5 (diff) | |
| download | linux-f37b20ebc4bc7c41e6fe1f4af6a62e9de70b771b.tar.xz | |
mmc: sdhci: add standard hw auto retuning support
If HW supports SDHCI_TUNING_MODE_3 which is auto retuning, we won't
retune during runtime suspend and resume, instead we use Re-tuning
Request signaled via SDHCI_INT_RETUNE interrupt to do retuning and
hw auto retuning during data transfer to guarantee the signal sample
window correction.
This can avoid a mass of repeatedly retuning during small file system
data access and improve the performance.
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/extcon')
0 files changed, 0 insertions, 0 deletions