linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Sia Jee Heng <jee.heng.sia@intel.com>
To: vkoul@kernel.org, Eugeniy.Paltsev@synopsys.com
Cc: andriy.shevchenko@linux.intel.com, dmaengine@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH 01/15] dt-bindings: dma: Add YAML schemas for dw-axi-dmac
Date: Mon, 12 Oct 2020 12:21:46 +0800	[thread overview]
Message-ID: <20201012042200.29787-2-jee.heng.sia@intel.com> (raw)
In-Reply-To: <20201012042200.29787-1-jee.heng.sia@intel.com>

YAML schemas Device Tree (DT) binding is the new format for DT to replace
the old format. Introduce YAML schemas DT binding for dw-axi-dmac and
remove the old version.

Signed-off-by: Sia Jee Heng <jee.heng.sia@intel.com>
---
 .../bindings/dma/snps,dw-axi-dmac.txt         |  39 ------
 .../bindings/dma/snps,dw-axi-dmac.yaml        | 124 ++++++++++++++++++
 2 files changed, 124 insertions(+), 39 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.txt
 create mode 100644 Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml

diff --git a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.txt b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.txt
deleted file mode 100644
index dbe160400adc..000000000000
--- a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.txt
+++ /dev/null
@@ -1,39 +0,0 @@
-Synopsys DesignWare AXI DMA Controller
-
-Required properties:
-- compatible: "snps,axi-dma-1.01a"
-- reg: Address range of the DMAC registers. This should include
-  all of the per-channel registers.
-- interrupt: Should contain the DMAC interrupt number.
-- dma-channels: Number of channels supported by hardware.
-- snps,dma-masters: Number of AXI masters supported by the hardware.
-- snps,data-width: Maximum AXI data width supported by hardware.
-  (0 - 8bits, 1 - 16bits, 2 - 32bits, ..., 6 - 512bits)
-- snps,priority: Priority of channel. Array size is equal to the number of
-  dma-channels. Priority value must be programmed within [0:dma-channels-1]
-  range. (0 - minimum priority)
-- snps,block-size: Maximum block size supported by the controller channel.
-  Array size is equal to the number of dma-channels.
-
-Optional properties:
-- snps,axi-max-burst-len: Restrict master AXI burst length by value specified
-  in this property. If this property is missing the maximum AXI burst length
-  supported by DMAC is used. [1:256]
-
-Example:
-
-dmac: dma-controller@80000 {
-	compatible = "snps,axi-dma-1.01a";
-	reg = <0x80000 0x400>;
-	clocks = <&core_clk>, <&cfgr_clk>;
-	clock-names = "core-clk", "cfgr-clk";
-	interrupt-parent = <&intc>;
-	interrupts = <27>;
-
-	dma-channels = <4>;
-	snps,dma-masters = <2>;
-	snps,data-width = <3>;
-	snps,block-size = <4096 4096 4096 4096>;
-	snps,priority = <0 1 2 3>;
-	snps,axi-max-burst-len = <16>;
-};
diff --git a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
new file mode 100644
index 000000000000..e688d25864bc
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
@@ -0,0 +1,124 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/snps,dw-axi-dmac.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Synopsys DesignWare AXI DMA Controller
+
+maintainers:
+  - Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com
+
+description: |
+ Synopsys DesignWare AXI DMA Controller DT Binding
+
+properties:
+  compatible:
+    enum:
+      - snps,axi-dma-1.01a
+
+  reg:
+    items:
+      - description: Address range of the DMAC registers.
+
+  reg-names:
+    items:
+      - const: axidma_ctrl_regs
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Bus Clock
+      - description: Module Clock
+
+  clock-names:
+    items:
+      - const: core-clk
+      - const: cfgr-clk
+
+  '#dma-cells':
+    const: 1
+
+  dma-channels:
+    description: |
+      Number of channels supported by hardware.
+
+  snps,dma-masters:
+    description: |
+      Number of AXI masters supported by the hardware.
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32
+      - enum: [1, 2]
+        default: 2
+
+  snps,data-width:
+    description: |
+      AXI data width supported by hardware.
+      (0 - 8bits, 1 - 16bits, 2 - 32bits, ..., 6 - 512bits)
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32
+      - enum: [0, 1, 2, 3, 4, 5, 6]
+        default: 4
+
+  snps,priority:
+    description: |
+      Channel priority specifier associated with the DMA channels.
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32-array
+      - minItems: 1
+        maxItems: 8
+        default: [0, 1, 2, 3]
+
+  snps,block-size:
+    description: |
+      Channel block size specifier associated with the DMA channels.
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32-array
+      - minItems: 1
+        maxItems: 8
+        default: [4096, 4096, 4096, 4096]
+
+  snps,axi-max-burst-len:
+    description: |
+      Restrict master AXI burst length by value specified in this property.
+      If this property is missing the maximum AXI burst length supported by
+      DMAC is used. [1:256]
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32
+        default: 16
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+  - '#dma-cells'
+  - dma-channels
+  - snps,dma-masters
+  - snps,data-width
+  - snps,priority
+  - snps,block-size
+
+examples:
+  - |
+     #include <dt-bindings/interrupt-controller/arm-gic.h>
+     #include <dt-bindings/interrupt-controller/irq.h>
+     /* example with snps,dw-axi-dmac */
+     dmac: dma-controller@80000 {
+         compatible = "snps,axi-dma-1.01a";
+         reg = <0x80000 0x400>;
+         clocks = <&core_clk>, <&cfgr_clk>;
+         clock-names = "core-clk", "cfgr-clk";
+         interrupt-parent = <&intc>;
+         interrupts = <27>;
+         #dma-cells = <1>;
+         dma-channels = <4>;
+         snps,dma-masters = <2>;
+         snps,data-width = <3>;
+         snps,block-size = <4096 4096 4096 4096>;
+         snps,priority = <0 1 2 3>;
+         snps,axi-max-burst-len = <16>;
+     };
-- 
2.18.0


  reply	other threads:[~2020-10-12  4:38 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-12  4:21 [PATCH 00/15] dmaengine: dw-axi-dmac: support Intel KeemBay AxiDMA Sia Jee Heng
2020-10-12  4:21 ` Sia Jee Heng [this message]
2020-10-12  4:21 ` [PATCH 02/15] dmaengine: dw-axi-dmac: simplify descriptor management Sia Jee Heng
2020-10-12  4:21 ` [PATCH 03/15] dmaengine: dw-axi-dmac: move dma_pool_create() to alloc_chan_resources() Sia Jee Heng
2020-10-12  4:21 ` [PATCH 04/15] dmaengine: dw-axi-dmac: Add device_synchronize() callback Sia Jee Heng
2020-10-12  4:21 ` [PATCH 05/15] dmaengine: dw-axi-dmac: Add device_config operation Sia Jee Heng
2020-10-12  4:21 ` [PATCH 06/15] dmaengine: dw-axi-dmac: Support device_prep_slave_sg Sia Jee Heng
2020-10-12  4:21 ` [PATCH 07/15] dmaegine: dw-axi-dmac: Support device_prep_dma_cyclic() Sia Jee Heng
2020-10-12  4:21 ` [PATCH 08/15] dmaengine: dw-axi-dmac: Support of_dma_controller_register() Sia Jee Heng
2020-10-12  4:21 ` [PATCH 09/15] dmaengine: dw-axi-dmac: Support burst residue granularity Sia Jee Heng
2020-10-12  4:21 ` [PATCH 10/15] dmaengine: dw-axi-dmac: Add Intel KeemBay AxiDMA support Sia Jee Heng
2020-10-12  4:21 ` [PATCH 11/15] dt-binding: dma: dw-axi-dmac: Add support for Intel KeemBay AxiDMA Sia Jee Heng
2020-10-12  4:21 ` [PATCH 12/15] dmaengine: dw-axi-dmac: Add Intel KeemBay DMA register fields Sia Jee Heng
2020-10-12  4:21 ` [PATCH 13/15] dmaengine: dw-axi-dmac: Add Intel KeemBay AxiDMA handshake Sia Jee Heng
2020-10-12  4:21 ` [PATCH 14/15] dmaengine: dw-axi-dmac: Add Intel KeemBay AxiDMA BYTE and HALFWORD registers Sia Jee Heng
2020-10-12  4:22 ` [PATCH 15/15] dmaengine: dw-axi-dmac: Set constraint to the Max segment size Sia Jee Heng
2020-10-12 13:59 ` [PATCH 00/15] dmaengine: dw-axi-dmac: support Intel KeemBay AxiDMA Andy Shevchenko
2020-10-13  5:49   ` Sia, Jee Heng
2020-10-13  7:01     ` Vinod Koul
2020-10-13  7:12       ` Sia, Jee Heng
2020-10-13  7:16         ` Vinod Koul
2020-10-16 14:51 ` Eugeniy Paltsev
2020-10-19  1:22   ` Sia, Jee Heng
2020-10-19 11:39     ` andriy.shevchenko
2020-10-21  1:54       ` Sia, Jee Heng

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20201012042200.29787-2-jee.heng.sia@intel.com \
    --to=jee.heng.sia@intel.com \
    --cc=Eugeniy.Paltsev@synopsys.com \
    --cc=andriy.shevchenko@linux.intel.com \
    --cc=dmaengine@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=vkoul@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).