[PATCH 0/2] power: regulator: rk8xx: Add 500us delay after LDO regulator is enabled

[Jonas Karlman]

With the series "regulator: implement basic reference counter" [1],
keeping regulator enablement in balance become more important.

A quick power cycle of a LDO regulator during dw-mmc signal voltage
change, see patch 1, has shown that SD-card does not always get
recognized after the vqmmc-supply is re-enabled.

Patch 2 fix this issue by applying a similar 400us enable_time delay the
linux driver use.

Patch 1 is marked as DO NOT MERGE because it may have unintended affects
like this and should be considered together with the "regulator:
implement basic reference counter" series.

[1] https://patchwork.ozlabs.org/project/uboot/list/?series=351536

Jonas Karlman (2):
  DO NOT MERGE: mmc: dw_mmc: Keep vqmmc-supply enable count in balance
  power: regulator: rk8xx: Add 500us delay after LDO regulator is
    enabled

 drivers/mmc/dw_mmc.c            | 4 ++++
 drivers/power/regulator/rk8xx.c | 4 ++++
 2 files changed, 8 insertions(+)

-- 
2.41.0