Re: [PATCH 0/4] Implement PM runtime for musb-core based on session bit

[Andreas Kemnade <andreas-cLv4Z9ELZ06ZuzBka8ofvg@public.gmane.org>]

Hi,

On Thu, 18 Aug 2016 15:46:46 -0700
Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org> wrote:

> Hi all,
> 
> Here's a series of patches to simplify musb PM runtime support
> further.
> 
> I finally figured out that we can get rid of most of the glue layer
> specific workarounds by following the devctl session bit in musb core.
> 
> The series also adds PM runtime support to the musb dsps glue layer
> for the PIO mode.
> 
> I've tested basic plugging of cables in peripheral and host mode
> on omap3 and am335x using omap2plus_defconfig. Please test if you
> can.
> 
Testing on GTA04 hardware (dm3730 + twl4030 as usb-phy), device mode,
charging: it does not make things worse than it is without it. Same
problems,
phy->power_count goes down to -1, so no gadget, no charging.
Fixing that (I have some nearly-ready things in my queue) causes
device mode and charging to work (as it does without
this patch-series).

Regards,
Andreas
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