On Friday, November 14, 2014 09:36:17 AM Kevin Hilman wrote:
Geert Uytterhoeven geert@linux-m68k.org writes:
Hi Kevin,
On Thu, Nov 13, 2014 at 11:28 PM, Kevin Hilman khilman@kernel.org wrote:
It makes little sense to use generic power domains without runtime PM.
Does it? It still powers down the PM domains on system suspend (at least on my boards ;-)
Sure, but your devices are also using runtime PM, so I'm not sure how does that change my statement above?
Questions here are (1) how many users will actually want to disable PM_RUNTIME for systems using genpd (my sort of educated guess is "none") and (2) whether or not we need to power up stuff dynamically during initialization on systems using genpd (and several recent discussions indicate that the answer here is "yes, we need to do that").
Also, since the complexities of handling the !PM_RUNTIME case are causing more trouble and confusion than they're worth, let's simplify the world by making genpd always enable runtime PM.
What do other people think?
Yes, I'm curious also. This patch was supposed to be marked RFC.
I'm totally for making this change and I'm going to queue up this patch for 3.19, so if anyone sees a really good reason for not doing this, please let me know what that reason is as soon as you can.
Rafael