On Fri, Mar 2, 2012 at 7:36 PM, Munegowda, Keshava
<keshava_mgowda@xxxxxx> wrote:
> On Fri, Feb 24, 2012 at 5:14 PM, Munegowda, Keshava
> <keshava_mgowda@xxxxxx> wrote:
>> On Fri, Feb 24, 2012 at 3:46 PM, Felipe Balbi <balbi@xxxxxx> wrote:
>>> Hi,
>>>
>>> On Fri, Feb 24, 2012 at 03:36:15PM +0530, Keshava Munegowda wrote:
>>>> From: Keshava Munegowda <Keshava_mgowda@xxxxxx>
>>>>
>>>> It is observed that the echi ports of 3430 sdp board
>>>> are not working due to the random timing of programming
>>>> the associated GPIOs of the ULPI PHYs of the EHCI for reset.
>>>> If the PHYs are reset at during usbhs core driver, host ports will
>>>> not work because EHCI driver is loaded after the resetting PHYs.
>>>> The PHYs should be in reset state while initializing the EHCI
>>>> controller.
>>>> The code which does the GPIO pins associated with the PHYs
>>>> are programmed to reset is moved from the USB host core driver
>>>> to EHCI driver.
>>>>
>>>> Signed-off-by: Keshava Munegowda <keshava_mgowda@xxxxxx>
>>>> Reviewed-by: Partha Basak <parthab@xxxxxxxxxxxx>
>>>
>>> won't this cause issues with EHCI/OHCI interactions ? I mean, what if
>>> you connect a FS/LS device and port is handed over to OHCI, does OHCI
>>> have any needs to reset the PHY or something similar ?
>>
>> No, it will not cause any issues with EHCI-OHCI issues.
>> But its difficult to comment on this because we don't have port
>> handoff supported
>> in hardware.
>>
>> regards
>> keshava
>
> Hi Samuel
> please let me know if you have any comments on this patch.
> This is required patch for omap3 ehci enumeration instabilities.
>
> Regards
> Keshava
Hi Samuel
do you have any comments on this patch?
Felipe has reviewed this patch and he is agreed for this patch.
there are no comments from your side, requesting to push this change
to mainline.
regards
keshava
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