Thread (24 messages) 24 messages, 4 authors, 2016-02-28

[PATCH/RFC v2 05/11] soc: renesas: rcar: Handle clock domain devices in SYSC PM domains

From: geert@linux-m68k.org (Geert Uytterhoeven)
Date: 2016-02-16 07:30:03
Also in: linux-devicetree, linux-pm, linux-renesas-soc

Hi Laurent,

On Mon, Feb 15, 2016 at 11:08 PM, Laurent Pinchart
[off-list ref] wrote:
On Monday 15 February 2016 22:16:54 Geert Uytterhoeven wrote:
quoted
R-Car H3 contains some hardware modules (e.g. VSP and FCP_V) that are
not only located in a power area controlled by the SYSC system
controller, but that are also part of the generic CPG/MSSR clock domain.
Make sure both are handled by enabling module clock PM when the device
for such a hardware module is attached to the SYSC PM Domain.
Can't we specify both power domains in the DT power-domains attribute instead
?
While the DT property is called "power-domains" (plural), only the first entry
is parsed by genpd_dev_pm_attach(). Which makes sense for power areas
(if there are multiple, they are nested), but indeed can cause problems when
mixed with clock domains.

For R-Mobile, I fixed it in a similar way.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

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
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help