Messages in this thread | | | Date | Tue, 13 Mar 2012 16:36:52 -0400 | From | Jeff Garzik <> | Subject | Re: [PATCH v2 1/3] ahci: add AHCI_HFLAG_DELAY_ENGINE host flag |
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On 02/21/2012 01:38 PM, Brian Norris wrote: > The following commit was intended to fix problems with specific AHCI > controller(s) that would become bricks if the AHCI specification was not > followed strictly (that is, if ahci_start_engine() was called while the > controller was in the wrong state): > > commit 7faa33da9b7add01db9f1ad92c6a5d9145e940a7 > ahci: start engine only during soft/hard resets > > However, some devices currently have issues with that fix, so we must > implement a flag that delays the ahci_start_engine() call only for specific > controllers. > > This commit simply introduces the flag, without enabling it in any driver. > > Note that even when AHCI_HFLAG_DELAY_ENGINE is not enabled, this patch does > not constitue a full revert to commit 7faa33da; there is still a change in > behavior to the ahci_port_suspend() failure path. > > Signed-off-by: Brian Norris<computersforpeace@gmail.com>
applied 1-3
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