PM: UART not resuming from OFF mode
Hi,
I'm facing this strange problem since some days. I have 3 identical boards
using OMAP3430 ES3.1 and I'm using Kevin's PM tree. http://git.kernel.org/?p=linux/kernel/git/khilman/linux-omap-pm.git;a=shortlog;h=pm
The problem is that UART3 fails to operate correctly after OFF mode on _two_ of the boards but works on one. It seems to receive characters but 0 only. So characters do not show up on terminal.
Is anybody experiencing similar problems with UART and off mode on your boards?
regards,
-roger
Quoted 9 lines · Roger Quadros
I'm facing this strange problem since some days. I have 3 identical
boards using OMAP3430 ES3.1 and I'm using Kevin's PM
tree. http://git.kernel.org/?p=linux/kernel/git/khilman/linux-omap-pm.git;a=shortlog;h=pmThe problem is that UART3 fails to operate correctly after OFF mode on _two_ of the boards but works on one. It seems to receive characters but 0 only. So characters do not show up on terminal.
Is anybody experiencing similar problems with UART and off mode on your boards?
Is this after suspend-to-OFF or OFF-while-idle?
I've experienced this with UART1 on SDP ES3.0, but according to Rajendra it didn't happen on SDP ES3.1 (I don't currently have any ES3.1 hardware) :(
Are all of yours ES3.1 ?
I haven't tracked it further since I only saw it on my SDP with UART1 and not on any other board.
Kevin
Quoted 24 lines
-----Original Message-----
From: [email protected] [mailto:linux-omap- [email protected]] On Behalf Of Kevin Hilman
Sent: Friday, August 07, 2009 11:21 AM
To: Roger Quadros
Cc: [email protected]
Subject: Re: PM: UART not resuming from OFF modeQuoted 3 lines · Roger Quadros
I'm facing this strange problem since some days. I have 3 identical
boards using OMAP3430 ES3.1 and I'm using Kevin's PM tree. http://git.kernel.org/?p=linux/kernel/git/khilman/linux-omap-pm.git;a=shortlog;h=pm
Quoted 6 lines
The problem is that UART3 fails to operate correctly after OFF mode on _two_ of the boards but works on one. It seems to receive characters but 0 only. So characters do not show up on terminal.
Is anybody experiencing similar problems with UART and off mode on your
boards?
Quoted 7 lines
Is this after suspend-to-OFF or OFF-while-idle?
I've experienced this with UART1 on SDP ES3.0, but according to Rajendra it didn't happen on SDP ES3.1 (I don't currently have any ES3.1 hardware) :(
Are all of yours ES3.1 ?
Could it be related to board encryption type (GP, EMU, HS)?
I'm not an expert on the topic, but I'm just throwing possible variants...
Regards,
Sergio
Quoted 12 lines
I haven't tracked it further since I only saw it on my SDP with UART1 and not on any other board.
Kevin
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Quoted 24 lines · Sergio Alberto
Quoted 24 lines
-----Original Message-----
From: [email protected] [mailto:linux-omap- [email protected]] On Behalf Of Kevin Hilman
Sent: Friday, August 07, 2009 11:21 AM
To: Roger Quadros
Cc: [email protected]
Subject: Re: PM: UART not resuming from OFF modeQuoted 3 lines · Roger Quadros
I'm facing this strange problem since some days. I have 3 identical
boards using OMAP3430 ES3.1 and I'm using Kevin's PM tree. http://git.kernel.org/?p=linux/kernel/git/khilman/linux-omap-pm.git;a=shortlog;h=pm
Quoted 5 lines
The problem is that UART3 fails to operate correctly after OFF mode on _two_ of the boards but works on one. It seems to receive characters but 0 only. So characters do not show up on terminal.
Is anybody experiencing similar problems with UART and off mode on your
boards?
Is this after suspend-to-OFF or OFF-while-idle?
Quoted 7 lines
Quoted 5 lines
I've experienced this with UART1 on SDP ES3.0, but according to Rajendra it didn't happen on SDP ES3.1 (I don't currently have any ES3.1 hardware) :(
Are all of yours ES3.1 ?
Could it be related to board encryption type (GP, EMU, HS)?
The boards on which it is passing and failing are ES3.1 HS.
Quoted 17 lines
I'm not an expert on the topic, but I'm just throwing possible variants...
Regards,
SergioQuoted 11 lines
I haven't tracked it further since I only saw it on my SDP with UART1 and not on any other board.
Kevin
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