Re: [PATCH 1/2] clk: tegra: register clocks from root to leaf

[Thierry Reding <thierry.reding@gmail.com>]

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On Wed, Apr 06, 2022 at 04:17:00PM +0100, Jon Hunter wrote:
> From: Timo Alho <talho@nvidia.com>
> 
> Current clock initialization causes intermediate registering of orphan
> clocks (i.e. a clock without a parent registered). CCF keeps track of
> orphan clocks and any time a new clock is registered, it will loop
> through the list of orphan and queries if the parent is now
> available. This operation triggers a clk operation(s), which is an IPC
> with BPMP-FW. Hence, due to the order of which the clock appear
> currently, this causes >5000 IPC messages to be sent to BPMP-FW during
> clock initialization.
> 
> Optimize the clock probing by registering clocks hierarchically from
> root clock towards leafs.
> 
> Signed-off-by: Timo Alho <talho@nvidia.com>
> [ Checkpatch warnings fixed by Jon Hunter <jonathanh@nvidia.com> ]
> Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
> ---
>  drivers/clk/tegra/clk-bpmp.c | 72 ++++++++++++++++++++++++++++--------
>  1 file changed, 56 insertions(+), 16 deletions(-)

Both patches applied, with slight tweaks to the commit message.

Thanks,
Thierry

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