Hi Simon,
On Fri, Dec 14, 2018 at 4:33 PM Simon Horman <horms@xxxxxxxxxxxx> wrote:
> On Tue, Dec 04, 2018 at 10:49:44PM +0300, Sergei Shtylyov wrote:
> > Protect the CPG register read-modify-write sequence with a spinlock.
>
> Spinlocks are expensive, I think an explanation of why this is
> necessary would be worthwhile.
Some clock registers contain bits for multiple clocks.
Hence read-modify-write cycles on these registers should be protected
against concurrent accesses for multiple clocks.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
