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Date: Wed, 28 Feb 2024 06:24:19 +0500
From: "bin.yao" <bin.yao@...enic.com>
To: vkoul@...nel.org
Cc: robh+dt@...nel.org,
krzysztof.kozlowski+dt@...aro.org,
conor+dt@...nel.org,
dmaengine@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
broonie@...nel.org,
quic_bjorande@...cinc.com,
byao <bin.yao@...enic.com>,
rick <rick.tyliu@...enic.com>
Subject: [PATCH 1/2] dt-bindings: dma: Ingenic: DT bindings for Ingenic PDMA
From: byao <bin.yao@...enic.com>
Convert the textual documentation for the Ingenic SoCs PDMA
Controller devicetree binding to YAML.
Add a dt-bindings header, and convert the device trees to it.
Signed-off-by: byao <bin.yao@...enic.com>
Signed-off-by: rick <rick.tyliu@...enic.com>
---
.../devicetree/bindings/dma/ingenic,pdma.yaml | 77 +++++++++++++++++++
include/dt-bindings/dma/ingenic-pdma.h | 51 ++++++++++++
2 files changed, 128 insertions(+)
create mode 100644 Documentation/devicetree/bindings/dma/ingenic,pdma.yaml
create mode 100644 include/dt-bindings/dma/ingenic-pdma.h
diff --git a/Documentation/devicetree/bindings/dma/ingenic,pdma.yaml b/Documentation/devicetree/bindings/dma/ingenic,pdma.yaml
new file mode 100644
index 000000000000..b3f3a8f0b813
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/ingenic,pdma.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/ingenic,dma.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Ingenic SoCs DMA Controller DT bindings
+
+maintainers:
+ - byao <bin.yao@...enic.com>
+
+allOf:
+ - $ref: "dma-controller.yaml#"
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - ingenic,m200-pdma
+ - ingenic,x1000-pdma
+ - ingenic,t40-pdma
+ - ingenic,t41-pdma
+ - ingenic,t33-pdma
+
+ reg:
+ maxItems: 1
+
+ interrupts-parent:
+ maxItems: 1
+
+ interrupts-names:
+ items:
+ - const: pdam
+ - const: pdmam
+
+ interrupts:
+ maxItems: 1
+
+ dma-channels:
+ const: 32
+
+ "#dma-cells":
+ const: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: gate_pdma
+
+required:
+ - compatible
+ - reg
+ - interrupt-parent
+ - interrupt-names
+ - interrupts
+ - clocks
+ - clock-names
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/ingenic,t33-cgu.h>
+ pdma:dma@...20000 {
+ compatible = "ingenic,t33-pdma";
+ reg = <0x13420000 0x10000>;
+ interrupt-parent = <&plic>;
+ interrupt-names = "pdma", "pdmam";
+ interrupts = <10 61>;
+ #dma-channels = <0x20>;
+ #dma-cells = <0x1>;
+ clocks = <&cgu T33_CLK_DMA>;
+ clock-names = "gate_pdma";
+ };
+
diff --git a/include/dt-bindings/dma/ingenic-pdma.h b/include/dt-bindings/dma/ingenic-pdma.h
new file mode 100644
index 000000000000..99c871bc0ea8
--- /dev/null
+++ b/include/dt-bindings/dma/ingenic-pdma.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */
+
+#ifndef __INGENIC_PDMA_H__
+#define __INGENIC_PDMA_H__
+
+#define INGENIC_DMA_REQ_AIC_LOOP_RX 0x5
+#define INGENIC_DMA_REQ_AIC_TX 0x6
+#define INGENIC_DMA_REQ_AIC_F_RX 0x7
+#define INGENIC_DMA_REQ_AUTO_TX 0x8
+#define INGENIC_DMA_REQ_SADC_RX 0x9
+#define INGENIC_DMA_REQ_UART5_TX 0xa
+#define INGENIC_DMA_REQ_UART5_RX 0xb
+#define INGENIC_DMA_REQ_UART4_TX 0xc
+#define INGENIC_DMA_REQ_UART4_RX 0xd
+#define INGENIC_DMA_REQ_UART3_TX 0xe
+#define INGENIC_DMA_REQ_UART3_RX 0xf
+#define INGENIC_DMA_REQ_UART2_TX 0x10
+#define INGENIC_DMA_REQ_UART2_RX 0x11
+#define INGENIC_DMA_REQ_UART1_TX 0x12
+#define INGENIC_DMA_REQ_UART1_RX 0x13
+#define INGENIC_DMA_REQ_UART0_TX 0x14
+#define INGENIC_DMA_REQ_UART0_RX 0x15
+#define INGENIC_DMA_REQ_SSI0_TX 0x16
+#define INGENIC_DMA_REQ_SSI0_RX 0x17
+#define INGENIC_DMA_REQ_SSI1_TX 0x18
+#define INGENIC_DMA_REQ_SSI1_RX 0x19
+#define INGENIC_DMA_REQ_SLV_TX 0x1a
+#define INGENIC_DMA_REQ_SLV_RX 0x1b
+#define INGENIC_DMA_REQ_I2C0_TX 0x24
+#define INGENIC_DMA_REQ_I2C0_RX 0x25
+#define INGENIC_DMA_REQ_I2C1_TX 0x26
+#define INGENIC_DMA_REQ_I2C1_RX 0x27
+#define INGENIC_DMA_REQ_I2C2_TX 0x28
+#define INGENIC_DMA_REQ_I2C2_RX 0x29
+#define INGENIC_DMA_REQ_DES_TX 0x2e
+#define INGENIC_DMA_REQ_DES_RX 0x2f
+
+#define INGENIC_DMA_TYPE_REQ_MSK 0xff
+#define INGENIC_DMA_TYPE_CH_SFT 8
+#define INGENIC_DMA_TYPE_CH_MSK (0xff << INGENIC_DMA_TYPE_CH_SFT)
+#define INGENIC_DMA_TYPE_CH_EN (1 << 16)
+#define INGENIC_DMA_TYPE_PROG (1 << 17)
+#define INGENIC_DMA_TYPE_SPEC (1 << 18)
+
+#define INGENIC_DMA_CH(ch) \
+ ((((ch) << INGENIC_DMA_TYPE_CH_SFT) & INGENIC_DMA_TYPE_CH_MSK) | INGENIC_DMA_TYPE_CH_EN)
+
+#define INGENIC_DMA_TYPE(type) ((type) & INGENIC_DMA_TYPE_REQ_MSK)
+#define INGENIC_DMA_TYPE_CH(type, ch) (INGENIC_DMA_TYPE((type)) | INGENIC_DMA_CH((ch)))
+#define INGENIC_DMA_PG_CH(type, ch) (INGENIC_DMA_TYPE_CH((type), (ch)) | INGENIC_DMA_TYPE_PROG_MSK)
+#endif
--
2.17.1
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