linux-kernel - mmc0 power consumption

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Date:	Sat, 11 Nov 2006 00:54:29 +0100
From:	Trifon Trifonov <triffon@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: mmc0 power consumption

Hello,
  I would like to report an issue with my O2Micro 4-in-1 Card reader. I 
am using kernel 2.6.17-10. Actually, the device works properly (although 
it wasn't like that with 2.6.15). I am just troubled by getting messages 
in the syslog about the mmc0 device consuming too much power after 
issuing ACPI suspend to RAM. I also don't have obvious problems with 
suspending, except that after the first suspend it will no longer 
suspend by closing the lid, so I have to do this manually. Also, after 
the first suspend, statistics show that battery consumption of my laptop 
seems to rise. So I suspect that something isn't right with the suspend.
  I reported this issue to <sdhci-devel -at- list.drzeus.cx>, as 
suggested by the log, but they supposed that this is a PCI issue and 
redirected me to this mailing list.
  I am attaching three files:
mmclog1.txt - syslog after ACPI suspend to RAM
mmclog2.txt - syslog after plugging in an SD card
lspci.txt - lspci -vv output
  I hope this report is helpful for somebody.

Best regards,
  Trifon Trifonov

View attachment "mmclog1.txt" of type "text/plain" (41276 bytes)

View attachment "mmclog2.txt" of type "text/plain" (15277 bytes)

View attachment "lspci.txt" of type "text/plain" (18494 bytes)