diff options
| author | Ludovic Desroches <[email protected]> | 2016-04-07 11:13:09 +0200 |
|---|---|---|
| committer | Ulf Hansson <[email protected]> | 2016-05-02 10:33:26 +0200 |
| commit | 4e289a7d2f55253c1f86bfab5d9187ea97daee44 (patch) | |
| tree | f4c3abf83396c43ea0b496d0af6058a64ea5a1fe /tools/perf/scripts/python/bin | |
| parent | fb9ee04779cf34a10ef7afaabf4e8055688777c4 (diff) | |
mmc: sdhci-of-at91: Implement specific ->set_clock() function
Disabling the internal clock while configuring the SD card clock can
lead to internal clock stabilization issue and/or unexpected switch to
the base clock when using presets.
A quirk SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST was introduced to fix
these bugs. The cause was assumed to be a too long internal
re-synchronisation but it seems in some cases the delay (even if longer)
doesn't fix this bug. The safest workaround is to not disable/enable the
internal clock during the SD card clock configuration.
Signed-off-by: Ludovic Desroches <[email protected]>
Acked-by: Adrian Hunter <[email protected]>
Signed-off-by: Ulf Hansson <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/bin')
0 files changed, 0 insertions, 0 deletions