Hi Hoan,
On Wed, Dec 28, 2016 at 2:40 AM, Hoan Nguyen An <na-hoan@xxxxxxxxxxx> wrote:
> I have retested PM, recheck the PM test procedures.
> I am using board H3 ES1.1, procedures involving i2cset is right.
>
> With the same test procedures and setting for this version and previous
> version(v4.9-rc2), but the results are different.
>
> (Only U-boot versions are different for two version)
>
> I am using U-boot version(U-Boot 2015.04 (Sep 13 2016 - 11:32:36)).
>
> I attach the test log file of PM. Please have a look at the log.
>
> On 27/12/16 22:02, Geert Uytterhoeven wrote:
>> On Tue, Dec 27, 2016 at 11:35 AM, Hoan Nguyen An <na-hoan@xxxxxxxxxxx>
>>> My name is Hoan from Jinzai Solution.
>>> We have tested the linux stable v4.9 for Gen3 Salvator-X (H3)
>>>
>>> So we would like to report the summary of the failure.
>>> 1 PM: It is not working, can't return to the system. NG New issue
>>> root@linaro-nano:~# echo mem > /sys/power/state
>>> [ 221.280712] PM: Syncing filesystems ... done.
>>> [ 221.286474] Freezing user space processes ... (elapsed 0.001 seconds)
>>> done.
>>> [ 221.295013] Freezing remaining freezable tasks ... (elapsed 0.001
>>> seconds) done.
>>> [ 221.303691] Suspending console(s) (use no_console_suspend to debug)
>>
>> Are you using R-Car H3 ES1.0?
>> AFAIK, tbe newer firmware supports system suspend/resume on H3 ES1.1 only,
>> and only when following the right procedure involving i2cset.
>
> I only set the following command for test.
> root@linaro-nano:~# echo enabled >
> /sys/devices/platform/soc/e6e68000.serial/tty/ttySC1/power/wakeup
> root@linaro-nano:~# echo enabled >
> /sys/devices/platform/soc/e6e88000.serial/tty/ttySC0/power/wakeup
Wake-up through any other wake-up source than SW23 is not yet supported
on Salvator-X boards, as the PSCI firmware doesn't know about those wake-up
sources, and powers down the whole SoC during suspend to RAM.
It may start to work once kernel support for suspend-to-idle has been added.
> root@linaro-nano:~# echo mem > /sys/power/state
>
> Could you please tell me more details for using i2cset?.
The official (cumbersome) procedure goes like this:
- Set to PMIC to backup mode via i2c-tools command
# i2cset -f -y 7 0x30 0x20 0x0F
- (Suspend) Change SW23 to OFF
- Request System Suspend to RAM
# echo mem > /sys/power/state
- (Resume) Change SW23 to ON
Note that this doesn't work with current upstream, as the upstream DTS
doesn't have a device node for i2c7 yet...
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
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
