Re: [PATCH] ARM: dts: msm8974: Add definitions for QCE & cryptobam

From: Iaroslav Gridin
Date: Fri Sep 16 2016 - 13:38:20 EST


On Thu, Sep 15, 2016 at 04:18:42PM -0500, Andy Gross wrote:

> Actually, on thinking about this more, the bam block itself only requires the
> single clock. The peripheral it is attached to has to keep its sanity during
> the duration of the transfer (crypto). The crypto requires 3 clocks, one of
> which is the same clk the bam requires.
>
> You can access the BAM registers with the bam_clk only, correct?

Not preparing bam_clk degrades QCE performance about 3x, though.