[Letux-kernel] GTA04A5 suspend and 4.19-rc4

[Andreas Kemnade]

On Fri, 21 Sep 2018 08:25:04 +0200
Andreas Kemnade <andreas at kemnade.info> wrote:

> Hi,
> 
> after debugging more I found something interesting:
> good: 4.19-rc4 mainline + letux-4.18 dtb
> good: 4.19-rc4 letux + letux-4.18.dtb
> bad: 4.19-rc4 mainline + letux-4.19-rc4 dtb
> 
bad: 4.19-rc4 mainline + letux-4.19-rc4 dtb +
   git checkout letux-4.18 -- arch/arm/boot/dts/omap3-gta04a5.dts +
   git checkout letux-4.18 -- arch/arm/boot/dts/omap3-gta04a5one.dts
bad:
  the above +
  git checkout letux-4.18 -- arch/arm/boot/dts/omap3-gta04*

Now things get really interesting.

> I am testing suspend with this small set of modules loaded:
> 
> usb_f_ecm              16384  1 
> g_ether                16384  0 
> usb_f_rndis            20480  2 g_ether
> u_ether                20480  3 usb_f_ecm,g_ether,usb_f_rndis
> libcomposite           45056  3 usb_f_ecm,g_ether,usb_f_rndis
> configfs               32768  4 usb_f_ecm,usb_f_rndis,libcomposite
> omap2430               16384  0 
> phy_twl4030_usb        16384  2 
> musb_hdrc             106496  2 omap2430,phy_twl4030_usb
> twl4030_charger        20480  0 
> industrialio           53248  1 twl4030_charger
> twl4030_pwrbutton      16384  0 
> bq27xxx_battery_hdq    16384  0 
> bq27xxx_battery        20480  1 bq27xxx_battery_hdq
> omap_hdq               16384  0 
> in case of letux kernel: additionally
> gnss_w2sg0004
> 
> good means:
> device sleeps for around 300 seconds via rtc.
> 
> bad means:
> device wakes up immediately.
> 
> Regards,
> Andreas

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