Subject: Re: [PATCH v3] clk: imx8mq: Mark AHB clock as critical

From: Stephen Boyd <[email-masked]>
Date: Tue, 30 Jul 2019 10:52:30 -0700

Quoting Abel Vesa (2019-07-30 00:22:55)
> Initially, the TMU_ROOT clock was marked as critical, which automatically
> made the AHB clock to stay always on. Since the TMU_ROOT clock is not
> marked as critical anymore, following commit:
> 
> 431bdd1df48e ("clk: imx8mq: Remove CLK_IS_CRITICAL flag for IMX8MQ_CLK_TMU_ROOT")
> 
> all the clocks that derive from ipg_root clock (and implicitly ahb clock)
> would also have to enable, along with their own gate, the AHB clock.
> 
> But considering that AHB is actually a bus that has to be always on, we mark
> it as critical in the clock provider driver and then all the clocks that
> derive from it can be controlled through the dedicated per IP gate which
> follows after the ipg_root clock.
> 
> Signed-off-by: Abel Vesa <[email-masked]>
> Tested-by: Daniel Baluta <[email-masked]>
> Fixes: 431bdd1df48e ("clk: imx8mq: Remove CLK_IS_CRITICAL flag for IMX8MQ_CLK_TMU_ROOT")
> ---
> 

Should I just apply this to clk-fixes branch?

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