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Groups > linux.kernel > #1518927 > unrolled thread
| Started by | Jon Hunter <jonathanh@nvidia.com> |
|---|---|
| First post | 2016-11-10 13:10 +0100 |
| Last post | 2016-11-10 13:10 +0100 |
| Articles | 1 — 1 participant |
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Re: [PATCH v3 3/5] net: asix: Fix AX88772x resume failures Jon Hunter <jonathanh@nvidia.com> - 2016-11-10 13:10 +0100
| From | Jon Hunter <jonathanh@nvidia.com> |
|---|---|
| Date | 2016-11-10 13:10 +0100 |
| Subject | Re: [PATCH v3 3/5] net: asix: Fix AX88772x resume failures |
| Message-ID | <sBWl3-60n-15@gated-at.bofh.it> |
Hi Robert, On 29/08/16 14:32, robert.foss@collabora.com wrote: > From: Robert Foss <robert.foss@collabora.com> > > From: Allan Chou <allan@asix.com.tw> > > The change fixes AX88772x resume failure by > - Restore incorrect AX88772A PHY registers when resetting > - Need to stop MAC operation when suspending > - Need to restart MII when restoring PHY > > Signed-off-by: Allan Chou <allan@asix.com.tw> > Signed-off-by: Robert Foss <robert.foss@collabora.com> > Tested-by: Robert Foss <robert.foss@collabora.com> After this commit, I have started seeing the following messages during system suspend on various tegra boards using asix ethernet dongles ... [ 288.667010] PM: Syncing filesystems ... done. [ 288.672223] Freezing user space processes ... (elapsed 0.001 seconds) done. [ 288.680505] Double checking all user space processes after OOM killer disable... (elapsed 0.000 seconds) [ 288.690193] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done. [ 288.698987] Suspending console(s) (use no_console_suspend to debug) [ 288.706605] asix 1-1:1.0 eth0: Failed to read reg index 0x0000: -19 [ 288.706613] asix 1-1:1.0 eth0: Error reading Medium Status register: ffffffed [ 288.706621] asix 1-1:1.0 eth0: Failed to write reg index 0x0000: -19 [ 288.706629] asix 1-1:1.0 eth0: Failed to write Medium Mode mode to 0xfeed: ffffffed [ 288.759167] PM: suspend of devices complete after 52.772 msecs Interestingly, it only seems to happen if the ethernet is in a disconnected state when entering suspend. I have not had chance to look at this any further, but wanted to see if you had any thoughts. Cheers Jon -- nvpublic
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