[Bug 191137] Re: [Hardy] ACPI Embedded Controller (EC) stops boot when kernel boot 'quiet' option is enabled or AC power is connected

[Stefan Bader]

I added the following two patches to the current debug kernel (both
changing the ec_space_handler and uploaded a smb6 kernel. Unfortunately
this is not a very efficient way to proceed.

commit b3b233c7d948a5f55185fb5a1b248157b948a1e5
Author: Alexey Starikovskiy <astarikovskiy at suse.de>
Date:   Fri Jan 11 02:42:57 2008 +0300

    ACPI: EC: Some hardware requires burst mode to operate properly
    
    Burst mode temporary (50 ms) locks EC to do only transactions with
    driver, without it some hardware returns abstract garbage.
    
    Reference: http://bugzilla.kernel.org/show_bug.cgi?id=9341
    
    Signed-off-by: Alecommit 3e71a87d03055de0b8c8e42aba758ee6494af083

Author: Alexey Starikovskiy <astarikovskiy at suse.de>
Date:   Fri Jan 11 02:42:51 2008 +0300

    ACPI: EC: Do the byte access with a fast path
    
    Specification allows only byte access for EC region, so
    make it separate from bug-compatible multi-byte access.
    Also do not allow return of garbage in supplied *value.
    
    Reference: http://bugzilla.kernel.org/show_bug.cgi?id=9341
    
    Signed-off-by: Alexey Starikovskiy <astarikovskiy at suse.de>
    Signed-off-by: Len Brown <len.brown at intel.com>xey Starikovskiy <astarikovskiy at suse.de>
    Signed-off-by: Len Brown <len.brown at intel.com>

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[Hardy] ACPI Embedded Controller (EC) stops boot when kernel boot 'quiet' option is enabled or AC power is connected
https://bugs.launchpad.net/bugs/191137
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