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Subject[PATCH v4 1/2] dt-bindings: dma: add schema for altr,msgdma
- add schema for Altera mSGDMA bindings in devicetree.
- add myself as 'Odd fixes' maintainer for this driver

Signed-off-by: Olivier Dautricourt <olivier.dautricourt@orolia.com>
---

Notes:
Changes in v2:
- fix reg size in dt example
- fix dt_binding check warning
- add list in MAINTAINERS entry

Changes from v2 to v3:
none

Changes from v3 to v4:
none

.../devicetree/bindings/dma/altr,msgdma.yaml | 62 +++++++++++++++++++
MAINTAINERS | 7 +++
2 files changed, 69 insertions(+)
create mode 100644 Documentation/devicetree/bindings/dma/altr,msgdma.yaml

diff --git a/Documentation/devicetree/bindings/dma/altr,msgdma.yaml b/Documentation/devicetree/bindings/dma/altr,msgdma.yaml
new file mode 100644
index 000000000000..295e46c84bf9
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/altr,msgdma.yaml
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/altr,msgdma.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Altera mSGDMA IP core
+
+maintainers:
+ - Olivier Dautricourt <olivier.dautricourt@orolia.com>
+
+description: |
+ Altera / Intel modular Scatter-Gather Direct Memory Access (mSGDMA)
+ intellectual property (IP)
+
+allOf:
+ - $ref: "dma-controller.yaml#"
+
+properties:
+ compatible:
+ const: altr,msgdma
+
+ reg:
+ description:
+ csr, desc, resp resgisters
+ maxItems: 3
+ minItems: 3
+
+ reg-names:
+ items:
+ - const: csr
+ - const: desc
+ - const: resp
+
+ interrupts:
+ maxItems: 1
+
+ "#dma-cells":
+ description: |
+ The dma controller discards the argument but one must be specified
+ to keep compatibility with dma-controller schema.
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - interrupts
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ msgdma_controller: dma-controller@ff200b00 {
+ compatible = "altr,msgdma";
+ reg = <0xff200b00 0x100>, <0xff200c00 0x100>, <0xff200d00 0x100>;
+ reg-names = "csr", "desc", "resp";
+ interrupts = <0 67 IRQ_TYPE_LEVEL_HIGH>;
+ #dma-cells = <1>;
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 5c90148f0369..359ab4877024 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -782,6 +782,13 @@ M: Ley Foon Tan <ley.foon.tan@intel.com>
S: Maintained
F: drivers/mailbox/mailbox-altera.c

+ALTERA MSGDMA IP CORE DRIVER
+M: Olivier Dautricourt <olivier.dautricourt@orolia.com>
+L: dmaengine@vger.kernel.org
+S: Odd Fixes
+F: Documentation/devicetree/bindings/dma/altr,msgdma.yaml
+F: drivers/dma/altera-msgdma.c
+
ALTERA PIO DRIVER
M: Joyce Ooi <joyce.ooi@intel.com>
L: linux-gpio@vger.kernel.org
--
2.31.0.rc2
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