Re: [PATCH] USB: otg: twl4030: fix phy initialization(v1)
From: Ming Lei
Date: Tue Sep 07 2010 - 11:41:57 EST
2010/9/7 venki kaps <venkiece2005@xxxxxxxxx>:
> thanks for your good response.
>
> Venkii,
>
> On Tue, Sep 7, 2010 at 6:54 PM, Ming Lei <tom.leiming@xxxxxxxxx> wrote:
>> 2010/9/7 venki kaps <venkiece2005@xxxxxxxxx>:
>>> Dear USB experts,
>>>
>>> Is the same fix valid for omap3430 + 2.6.32 Kernel?
>>>
>>> I have been facing mp3 playback idle current consumption 20mA more
>>> after booting without USB cable connected
>>> but If USB cable detach and attach happen, then able to hit proper
>>> values otherwise irrespective of cold/warm reset
>>> the current values increases to 20mA.
>>>
>>> with cable,
>>> OTG_SYSCONFIG standby mode of operation - SMART idle
>>> HSOTGUSB_STANDBY - SMART standby
>>>
>>> without cable,
>>> OTG_SYSCONFIG standby mode of operation - SMART idle
>>> HSOTGUSB_STANDBY - Active
>>>
>>> Even i have applied patch but still the same issue.
>>
>> Are you applying the patch below?
>>
>> http://marc.info/?l=linux-omap&m=128378686221264&w=2
>>
>> The patch(USB: otg: twl4030: fix phy initialization(v1)) above is against
>> 2.6.36-rc3, I don't think you can apply it directly on 2.6.32. And the patch
>> is introduced to fix the problems caused by
>>
>> commit 461c317705eca5cac09a360f488715927fd0a927.
>>
>> which change is committed into mainline 2.6.36-rc3.
> >>> Yes, this patch i have applied.
If you applied the patch, I guess you may see __twl4030_phy_power(twl, 0)
is called from .probe.
If called, seems your description a little contradictory since you observed
__twl4030_phy_power(twl, 0) may hit proper values, right?
If not called, could you trace the return value of twl4030_usb_linkstat in
twl4030_usb_phy_init?
thanks,
--
Lei Ming
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