linux-kernel - Re: RTL8723BS driver doesn't work for,me but I can help testing

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Message-ID: <c244b34f-8958-0cbd-38e6-a786aef56e7c@o2online.de>
Date:   Tue, 19 May 2020 08:21:14 +0200
From:   Tobias Baumann <017623705678@...nline.de>
To:     Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc:     hdegoede@...hat.com, Larry.Finger@...inger.net,
        gregkh@...uxfoundation.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org
Subject: Re: RTL8723BS driver doesn't work for,me but I can help testing

good morning

i got the new image from oleg(balbes150) 20200518 RC5  and some more 
feedback

with my patch and oleg RC5 hotstart(shutdown now)  do not work with my 
box ( wlan goes back to sleep mode always)

with my patch chance  1 of 5 till 1 of 3 that my wlan is up and not 
sleep from cold start

with oleg chance 1 of 2 till 1of 3 from cold start that wlan is up  . 
(maybe because of phandle order?)

i thing there is maybe a timming problem between  wlan dis , sdio  data 
and  host wake up wlan .

it could be that GPIOAO_6 is the host wake up wlan ? is it possible to 
change the activation order for the gpio pins by change it in dts ?

Tobias



Am 18.05.2020 um 22:37 schrieb Martin Blumenstingl:
> Hi Tobias,
>
> On Mon, May 18, 2020 at 7:59 AM Tobias Baumann <017623705678@...nline.de> wrote:
>> hi martin
>>
>> i activate your patch ; wlan works ;  also with only  edit GPIOX_11 wlan
>> works
>>
>> its now GPIO-402 out high ACTIVE_LOW  ( 3.3V on pin12)
> great, thank you for doing the research!
>
> did you find out if GPIOAO_6 is needed at all?
> the 3.10 kernel enables it and sets it to HIGH. my understanding is
> that you didn't change this one so the output is still LOW.
> so I'm wondering if it is needed at all (I wouldn't be surprised if it
> was not needed, these 3.10 kernel .dts files seem to be copy&pasted
> from various vendors and do not necessarily reflect the actual
> hardware setup inside the box)
>
>> i also attached the performance infos  Wlan0->Router and RAM->SDHC
> that's pretty good, great to see that it works fine for you :-)
>
>
> Martin
>

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