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| author | Hans de Goede <hdegoede@redhat.com> | 2014-02-22 16:53:30 +0100 |
|---|---|---|
| committer | Nitin Garg <nitin.garg@freescale.com> | 2015-01-15 21:17:17 -0600 |
| commit | ec83380f27175952759b0888b839acb6e97cf447 (patch) | |
| tree | 31a3e8327e7c27b984b677493c37444caaf4d86d /Documentation | |
| parent | a61f2ea36188b66845b16884cad6dcefe85f36f3 (diff) | |
libahci: Allow drivers to override start_engine
Allwinner A10 and A20 ARM SoCs have an AHCI sata controller which needs a
special register to be poked before starting the DMA engine.
This register gets reset on an ahci_stop_engine call, so there is no other
place then ahci_start_engine where this poking can be done.
This commit allows drivers to override ahci_start_engine behavior for use by
the Allwinner AHCI driver (and potentially other drivers in the future).
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
(cherry picked from commit 039ece38da45f5e6a94be3aa7611cf3634bc2461)
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions