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authorRob Herring (Arm) <robh@kernel.org>2025-05-12 16:57:56 -0500
committerDamien Le Moal <dlemoal@kernel.org>2025-05-15 21:32:38 +0900
commit3b0bca979344b2e26de8f4c175bed975b1d54e8f (patch)
treeb09eab13d1c620684898c92504cf318f699925e1
parent6130ed3cd0b4c5e22757e7aa1819abd66f0987e3 (diff)
downloadlinux-for-next.tar.gz
dt-bindings: ata: Convert arasan,cf-spear1340 to DT schemafor-nextfor-6.16
Convert the Arasan/SPEAr Compact Flash Controller to DT schema format. The "clock-frequency" property isn't actually used. Add a single "clocks" entry as the Linux driver supports a single clock though the platform still doesn't have clocks in DT. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
-rw-r--r--Documentation/devicetree/bindings/ata/arasan,cf-spear1340.yaml70
-rw-r--r--Documentation/devicetree/bindings/ata/pata-arasan.txt37
2 files changed, 70 insertions, 37 deletions
diff --git a/Documentation/devicetree/bindings/ata/arasan,cf-spear1340.yaml b/Documentation/devicetree/bindings/ata/arasan,cf-spear1340.yaml
new file mode 100644
index 00000000000000..4d7017452ddaca
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/arasan,cf-spear1340.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/arasan,cf-spear1340.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arasan PATA Compact Flash Controller
+
+maintainers:
+ - Viresh Kumar <viresh.kumar@linaro.org>
+
+properties:
+ compatible:
+ const: arasan,cf-spear1340
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ arasan,broken-udma:
+ description: UDMA mode is unusable
+ type: boolean
+
+ arasan,broken-mwdma:
+ description: MWDMA mode is unusable
+ type: boolean
+
+ arasan,broken-pio:
+ description: PIO mode is unusable
+ type: boolean
+
+ dmas:
+ maxItems: 1
+
+ dma-names:
+ items:
+ - const: data
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+allOf:
+ - if:
+ not:
+ required:
+ - arasan,broken-udma
+ - arasan,broken-mwdma
+ then:
+ required:
+ - dmas
+ - dma-names
+
+examples:
+ - |
+ cf@fc000000 {
+ compatible = "arasan,cf-spear1340";
+ reg = <0xfc000000 0x1000>;
+ interrupts = <12>;
+ dmas = <&dma 23>;
+ dma-names = "data";
+ };
diff --git a/Documentation/devicetree/bindings/ata/pata-arasan.txt b/Documentation/devicetree/bindings/ata/pata-arasan.txt
deleted file mode 100644
index 872edc10568053..00000000000000
--- a/Documentation/devicetree/bindings/ata/pata-arasan.txt
+++ /dev/null
@@ -1,37 +0,0 @@
-* ARASAN PATA COMPACT FLASH CONTROLLER
-
-Required properties:
-- compatible: "arasan,cf-spear1340"
-- reg: Address range of the CF registers
-- interrupt: Should contain the CF interrupt number
-- clock-frequency: Interface clock rate, in Hz, one of
- 25000000
- 33000000
- 40000000
- 50000000
- 66000000
- 75000000
- 100000000
- 125000000
- 150000000
- 166000000
- 200000000
-
-Optional properties:
-- arasan,broken-udma: if present, UDMA mode is unusable
-- arasan,broken-mwdma: if present, MWDMA mode is unusable
-- arasan,broken-pio: if present, PIO mode is unusable
-- dmas: one DMA channel, as described in bindings/dma/dma.txt
- required unless both UDMA and MWDMA mode are broken
-- dma-names: the corresponding channel name, must be "data"
-
-Example:
-
- cf@fc000000 {
- compatible = "arasan,cf-spear1340";
- reg = <0xfc000000 0x1000>;
- interrupt-parent = <&vic1>;
- interrupts = <12>;
- dmas = <&dma-controller 23>;
- dma-names = "data";
- };