clk: tegra: add fence_delay for clock registers

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To ensure writes to clock registers have properly propagated through the
clock control logic and state machines, we need to ensure the writes have
been posted in the registers and wait for 1us after that.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Hector Martin <marcan@marcan.st>
Tested-by: Andre Heider <a.heider@gmail.com>
Tested-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

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Peter De Schrijver 2018-01-25 16:00:11 +02:00 • committed by Thierry Reding

parent 89e423c3f1

commit cbfc8d0a85

1 changed files with 7 additions and 0 deletions

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drivers/clk/tegra/clk.h

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