Re: [Dynamicpower-devel] [PATCH] hang after frequency scale

[Todd P. <tp...@mv...>]

Vladimir A. Barinov wrote:
> Hi Todd,
> 
> This is a patch for hang after freq scale issue.
> System often hangs if the DPLL freq changed from low
> to high with large step. But system never hangs if the step
> is minimal (12MHz) and never hangs if we changing from high to low.
> This patch is a workaround but there is no other way to solve
> this issue on linux-omap at this moment.
> The delay 0x1FF  does care about jump from 12MHz to 194MHz.
> 
> Also:
> 1. Removed previous code for omap1710 because
> the code described above does care about hangs/garbage produce.
> 
> 2. Proposed to move omap_cfg_reg() to init section to avoid
> unnecessary callbacks of this function.
> 
> 3. Added DPM capability for 216MHz to be close with resent clock.c.

Thanks Vladimir, merging these to the next version.  The magic delay 
constant 0x1FF is a little unnerving, but oh well.

-- 
Todd