Thread (44 messages) 44 messages, 3 authors, 2016-04-11

N900 sleep mode (in 4.5-rc0, if that matters)

From: Pavel Machek <hidden>
Date: 2016-02-07 21:38:33
Also in: linux-omap, lkml

Hi!
quoted
quoted
No, sorry, that was with 4.4. As you hit "PM regression with commit
5de85b9d57ab PM runtime re-init in v4.5-rc1", I thought I'd avoid
v4.5-rc. 
OK
quoted
(I assume I have to insmod and rmmod, right? Because powersave is not
entered if I simply compile-out usb).
Depending on what the bootloader does and probably also if
USB was used during the booting.. So yeah you may need to modprobe
and then rmmod.
quoted
Would you have commit ids for those rmmod fixes? It might be good to
push them into stable, and I should try again with them applied...
055555fc459 ("usb: musb: core: Fix handling of the phy notifications")
03e43528ab68 ("usb: musb: Fix unbalanced pm_runtime_enable")
Oh and looks like these two phy-twl4030-phy fixes never got
merged from thread "[PATCH 0/2] Two phy-twl4030-usb fixes for
unloading the module":

phy: twl4030-usb: Relase usb phy on unload
phy: twl4030-usb: Fix unbalanced pm_runtime_enable on module reload

I'll resend those. But without those again deeper idle states
are blocked.. And it could be that n900 needs similar additional
patches for it's USB PHY as I've tested things so far only with
phy-twl4030-usb PHY based systems.
I don't get it. I was using

+CONFIG_USB_MUSB_OMAP2PLUS=m
+CONFIG_TWL4030_USB=m

on the n900. Are you suggesting I should be using something else on
the N900? If so, what?

Pali, do you have deeper sleep states working on 4.4 kernel? (Or
anything 4.X?)
									
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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