Seeing doubtfully any SATA device working without embedded DMA engine
let's permit the device nodes being equipped with the dma-coherent
property in case if the platform is capable of cache-coherent DMAs.
As a side-effect we can drop the explicit dma-coherent property definition
from the particular device schemas. Currently it concerns the Broadcom
SATA AHCI controller only.
Signed-off-by: Serge Semin <Sergey.Semin@xxxxxxxxxxxxxxxxxxxx>
---
Changelog v2:
- This is a new patch created after rebasing v1 onto the 5.18-rc3 kernel.
Changelog v4:
- Move the dma-coherent property to the sata-common.yaml schema instead
of removing it.
- Remove the Hannes' rb tag.
---
Documentation/devicetree/bindings/ata/ahci-platform.yaml | 2 --
Documentation/devicetree/bindings/ata/brcm,sata-brcm.yaml | 2 --
Documentation/devicetree/bindings/ata/sata-common.yaml | 2 ++
3 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/Documentation/devicetree/bindings/ata/ahci-platform.yaml b/Documentation/devicetree/bindings/ata/ahci-platform.yaml
index c146ab8e14e5..9304e4731965 100644
--- a/Documentation/devicetree/bindings/ata/ahci-platform.yaml
+++ b/Documentation/devicetree/bindings/ata/ahci-platform.yaml
@@ -87,8 +87,6 @@ properties:
description:
regulator for AHCI controller
- dma-coherent: true
-
phy-supply:
description:
regulator for PHY power
diff --git a/Documentation/devicetree/bindings/ata/brcm,sata-brcm.yaml b/Documentation/devicetree/bindings/ata/brcm,sata-brcm.yaml
index 235a93ac86b0..4ee74df8e58a 100644
--- a/Documentation/devicetree/bindings/ata/brcm,sata-brcm.yaml
+++ b/Documentation/devicetree/bindings/ata/brcm,sata-brcm.yaml
@@ -41,8 +41,6 @@ properties:
interrupts:
maxItems: 1
- dma-coherent: true
-
if:
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/ata/sata-common.yaml b/Documentation/devicetree/bindings/ata/sata-common.yaml
index 7ac77b1c5850..cb88d3e25e73 100644
--- a/Documentation/devicetree/bindings/ata/sata-common.yaml
+++ b/Documentation/devicetree/bindings/ata/sata-common.yaml
@@ -31,6 +31,8 @@ properties:
"#size-cells":
const: 0
+ dma-coherent: true
+
patternProperties:
"^sata-port@[0-9a-e]$":
description: |
--
2.35.1
