path: root/Documentation
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authorLinus Torvalds <torvalds@linux-foundation.org>2016-05-07 08:13:42 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-07 08:13:42 -0700
commit35cd3f4563c4a0fc99be300afc7b82a822e634c7 (patch)
treee27c2fa0588110d0280c0b327ea4548475096394 /Documentation
parentb4184cbff393d9ede2d80efd7088126706c1ce08 (diff)
parent535dac4ab5f42e040e8405b31e309a6b6d4eee57 (diff)
Merge branch 'for-4.6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata fixes from Tejun Heo: "An ahci driver addition and updates to ahci port enable handling for some platform devices" * 'for-4.6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: ata: add AMD Seattle platform driver ARM: dts: apq8064: add ahci ports-implemented mask ata: ahci-platform: Add ports-implemented DT bindings. libahci: save port map for forced port map
Diffstat (limited to 'Documentation')
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/ata/ahci-platform.txt b/Documentation/devicetree/bindings/ata/ahci-platform.txt
index 30df832a6f2f..87adfb227ca9 100644
--- a/Documentation/devicetree/bindings/ata/ahci-platform.txt
+++ b/Documentation/devicetree/bindings/ata/ahci-platform.txt
@@ -32,6 +32,10 @@ Optional properties:
- target-supply : regulator for SATA target power
- phys : reference to the SATA PHY node
- phy-names : must be "sata-phy"
+- ports-implemented : Mask that indicates which ports that the HBA supports
+ are available for software to use. Useful if PORTS_IMPL
+ is not programmed by the BIOS, which is true with
+ some embedded SOC's.
Required properties when using sub-nodes:
- #address-cells : number of cells to encode an address