diff mbox series

[v3,21/42] dt-bindings: dma: Add Cirrus EP93xx

Message ID 20230605-ep93xx-v3-21-3d63a5f1103e@maquefel.me
State Changes Requested
Headers show
Series ep93xx device tree conversion | expand

Commit Message

Nikita Shubin via B4 Relay July 20, 2023, 11:29 a.m. UTC 
From: Nikita Shubin <nikita.shubin@maquefel.me>

Add YAML bindings for ep93xx SoC DMA.

Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me>
---
 .../bindings/dma/cirrus,ep9301-dma-m2m.yaml        |  72 ++++++++++++
 .../bindings/dma/cirrus,ep9301-dma-m2p.yaml        | 124 +++++++++++++++++++++
 include/dt-bindings/dma/cirrus,ep93xx-dma.h        |  26 +++++
 include/linux/platform_data/dma-ep93xx.h           |  21 +---
 4 files changed, 223 insertions(+), 20 deletions(-)
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/dma/cirrus,ep9301-dma-m2m.yaml b/Documentation/devicetree/bindings/dma/cirrus,ep9301-dma-m2m.yaml
new file mode 100644
index 000000000000..c8f57e000865
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/cirrus,ep9301-dma-m2m.yaml
@@ -0,0 +1,72 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/cirrus,ep9301-dma-m2m.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logick ep93xx SoC DMA controller
+
+maintainers:
+  - Alexander Sverdlin <alexander.sverdlin@gmail.com>
+  - Nikita Shubin <nikita.shubin@maquefel.me>
+
+properties:
+  compatible:
+    oneOf:
+      - const: cirrus,ep9301-dma-m2m
+      - items:
+          - enum:
+              - cirrus,ep9302-dma-m2m
+              - cirrus,ep9307-dma-m2m
+              - cirrus,ep9312-dma-m2m
+              - cirrus,ep9315-dma-m2m
+          - const: cirrus,ep9301-dma-m2m
+
+  reg:
+    items:
+      - description: m2m0 channel registers
+      - description: m2m1 channel registers
+
+  clocks:
+    items:
+      - description: m2m0 channel gate clock
+      - description: m2m1 channel gate clock
+
+  clock-names:
+    items:
+      - const: m2m0
+      - const: m2m1
+
+  interrupts:
+    items:
+      - description: m2m0 channel interrupt
+      - description: m2m1 channel interrupt
+
+  '#dma-cells': true
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/cirrus,ep93xx-clock.h>
+    dma-controller@80000100 {
+      compatible = "cirrus,ep9301-dma-m2m";
+      reg = <0x80000100 0x0040>,
+            <0x80000140 0x0040>;
+      clocks = <&eclk EP93XX_CLK_M2M0>,
+              <&eclk EP93XX_CLK_M2M1>;
+      clock-names = "m2m0", "m2m1";
+      interrupt-parent = <&vic0>;
+      interrupts = <17>, <18>;
+      #dma-cells = <1>;
+    };
+
+...
+
diff --git a/Documentation/devicetree/bindings/dma/cirrus,ep9301-dma-m2p.yaml b/Documentation/devicetree/bindings/dma/cirrus,ep9301-dma-m2p.yaml
new file mode 100644
index 000000000000..e3090421c328
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/cirrus,ep9301-dma-m2p.yaml
@@ -0,0 +1,124 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/cirrus,ep9301-dma-m2p.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logick ep93xx SoC M2P DMA controller
+
+maintainers:
+  - Alexander Sverdlin <alexander.sverdlin@gmail.com>
+  - Nikita Shubin <nikita.shubin@maquefel.me>
+
+properties:
+  compatible:
+    oneOf:
+      - const: cirrus,ep9301-dma-m2p
+      - items:
+          - enum:
+              - cirrus,ep9302-dma-m2p
+              - cirrus,ep9307-dma-m2p
+              - cirrus,ep9312-dma-m2p
+              - cirrus,ep9315-dma-m2p
+          - const: cirrus,ep9301-dma-m2p
+
+  reg:
+    items:
+      - description: m2p0 channel registers
+      - description: m2p1 channel registers
+      - description: m2p2 channel registers
+      - description: m2p3 channel registers
+      - description: m2p4 channel registers
+      - description: m2p5 channel registers
+      - description: m2p6 channel registers
+      - description: m2p7 channel registers
+      - description: m2p8 channel registers
+      - description: m2p9 channel registers
+
+  clocks:
+    items:
+      - description: m2p0 channel gate clock
+      - description: m2p1 channel gate clock
+      - description: m2p2 channel gate clock
+      - description: m2p3 channel gate clock
+      - description: m2p4 channel gate clock
+      - description: m2p5 channel gate clock
+      - description: m2p6 channel gate clock
+      - description: m2p7 channel gate clock
+      - description: m2p8 channel gate clock
+      - description: m2p9 channel gate clock
+
+  clock-names:
+    items:
+      - const: m2p0
+      - const: m2p1
+      - const: m2p2
+      - const: m2p3
+      - const: m2p4
+      - const: m2p5
+      - const: m2p6
+      - const: m2p7
+      - const: m2p8
+      - const: m2p9
+
+  interrupts:
+    items:
+      - description: m2p0 channel interrupt
+      - description: m2p1 channel interrupt
+      - description: m2p2 channel interrupt
+      - description: m2p3 channel interrupt
+      - description: m2p4 channel interrupt
+      - description: m2p5 channel interrupt
+      - description: m2p6 channel interrupt
+      - description: m2p7 channel interrupt
+      - description: m2p8 channel interrupt
+      - description: m2p9 channel interrupt
+
+  '#dma-cells': true
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/cirrus,ep93xx-clock.h>
+    dma-controller@80000000 {
+      compatible = "cirrus,ep9301-dma-m2p";
+      reg =   <0x80000000 0x0040>,
+              <0x80000040 0x0040>,
+              <0x80000080 0x0040>,
+              <0x800000c0 0x0040>,
+              <0x80000240 0x0040>,
+              <0x80000200 0x0040>,
+              <0x800002c0 0x0040>,
+              <0x80000280 0x0040>,
+              <0x80000340 0x0040>,
+              <0x80000300 0x0040>;
+      clocks = <&eclk EP93XX_CLK_M2P0>,
+              <&eclk EP93XX_CLK_M2P1>,
+              <&eclk EP93XX_CLK_M2P2>,
+              <&eclk EP93XX_CLK_M2P3>,
+              <&eclk EP93XX_CLK_M2P4>,
+              <&eclk EP93XX_CLK_M2P5>,
+              <&eclk EP93XX_CLK_M2P6>,
+              <&eclk EP93XX_CLK_M2P7>,
+              <&eclk EP93XX_CLK_M2P8>,
+              <&eclk EP93XX_CLK_M2P9>;
+      clock-names = "m2p0", "m2p1",
+              "m2p2", "m2p3",
+              "m2p4", "m2p5",
+              "m2p6", "m2p7",
+              "m2p8", "m2p9";
+      interrupt-parent = <&vic0>;
+      interrupts = <7>, <8>, <9>, <10>, <11>, <12>, <13>, <14>, <15>, <16>;
+      #dma-cells = <1>;
+    };
+
+...
+
diff --git a/include/dt-bindings/dma/cirrus,ep93xx-dma.h b/include/dt-bindings/dma/cirrus,ep93xx-dma.h
new file mode 100644
index 000000000000..21c7324eb27e
--- /dev/null
+++ b/include/dt-bindings/dma/cirrus,ep93xx-dma.h
@@ -0,0 +1,26 @@ 
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
+#ifndef DT_BINDINGS_CIRRUS_EP93XX_DMA_H
+#define DT_BINDINGS_CIRRUS_EP93XX_DMA_H
+
+/*
+ * M2P channels.
+ *
+ * Note that these values are also directly used for setting the PPALLOC
+ * register.
+ */
+#define EP93XX_DMA_I2S1         0
+#define EP93XX_DMA_I2S2         1
+#define EP93XX_DMA_AAC1         2
+#define EP93XX_DMA_AAC2         3
+#define EP93XX_DMA_AAC3         4
+#define EP93XX_DMA_I2S3         5
+#define EP93XX_DMA_UART1        6
+#define EP93XX_DMA_UART2        7
+#define EP93XX_DMA_UART3        8
+#define EP93XX_DMA_IRDA         9
+/* M2M channels */
+#define EP93XX_DMA_SSP          10
+#define EP93XX_DMA_IDE          11
+
+#endif /* DT_BINDINGS_CIRRUS_EP93XX_DMA_H */
+
diff --git a/include/linux/platform_data/dma-ep93xx.h b/include/linux/platform_data/dma-ep93xx.h
index eb9805bb3fe8..54b41d1468ef 100644
--- a/include/linux/platform_data/dma-ep93xx.h
+++ b/include/linux/platform_data/dma-ep93xx.h
@@ -5,26 +5,7 @@ 
 #include <linux/types.h>
 #include <linux/dmaengine.h>
 #include <linux/dma-mapping.h>
-
-/*
- * M2P channels.
- *
- * Note that these values are also directly used for setting the PPALLOC
- * register.
- */
-#define EP93XX_DMA_I2S1		0
-#define EP93XX_DMA_I2S2		1
-#define EP93XX_DMA_AAC1		2
-#define EP93XX_DMA_AAC2		3
-#define EP93XX_DMA_AAC3		4
-#define EP93XX_DMA_I2S3		5
-#define EP93XX_DMA_UART1	6
-#define EP93XX_DMA_UART2	7
-#define EP93XX_DMA_UART3	8
-#define EP93XX_DMA_IRDA		9
-/* M2M channels */
-#define EP93XX_DMA_SSP		10
-#define EP93XX_DMA_IDE		11
+#include <dt-bindings/dma/cirrus,ep93xx-dma.h>
 
 /**
  * struct ep93xx_dma_data - configuration data for the EP93xx dmaengine