Convert the i.MX SDMA binding to DT schema format using json-schema.
The compatibles fsl,imx31-to1-sdma, fsl,imx31-to2-sdma, fsl,imx35-to1-sdma
and fsl,imx35-to2-sdma are not used. So need to delete it. The compatibles
fsl,imx50-sdma, fsl,imx6sll-sdma and fsl,imx6sl-sdma are added. The
original binding don't list all compatible used.
In addition, add new peripheral types HDMI Audio.
Signed-off-by: Joy Zou <[email protected]>
---
Changes in v9:
add the dma-common quotes.
delete the dma-controller quotes.
Changes in v8:
add the dma-controller quotes.
delete #dma-cells in required.
Changes in v6:
delete tag Acked-by from commit message.
Changes in v5:
modify the commit message fromat.
add additionalProperties, because delete the quotes in patch v4.
delete unevaluatedProperties due to similar to additionalProperties.
modification fsl,sdma-event-remap items and description.
Changes in v4:
modify the commit message.
delete the quotes in patch.
modify the compatible in patch.
delete maxitems and add items for clock-names property.
add iram property.
Changes in v3:
modify the commit message.
modify the filename.
modify the maintainer.
delete the unnecessary comment.
modify the compatible and run dt_binding_check and dtbs_check.
add clocks and clock-names property.
delete the reg description and add maxItems.
delete the interrupts description and add maxItems.
add ref for gpr property.
modify the fsl,sdma-event-remap ref type and add items.
delete consumer example.
Changes in v2:
convert imx sdma bindings to DT schema.
---
.../devicetree/bindings/dma/fsl,imx-sdma.yaml | 149 ++++++++++++++++++
.../devicetree/bindings/dma/fsl-imx-sdma.txt | 118 --------------
2 files changed, 149 insertions(+), 118 deletions(-)
create mode 100644 Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml
delete mode 100644 Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt
diff --git a/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml b/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml
new file mode 100644
index 000000000000..95d0391a1f39
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml
@@ -0,0 +1,149 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/fsl,imx-sdma.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale Smart Direct Memory Access (SDMA) Controller for i.MX
+
+maintainers:
+ - Joy Zou <[email protected]>
+
+allOf:
+ - $ref: dma-common.yaml#
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - fsl,imx50-sdma
+ - fsl,imx51-sdma
+ - fsl,imx53-sdma
+ - fsl,imx6q-sdma
+ - fsl,imx7d-sdma
+ - const: fsl,imx35-sdma
+ - items:
+ - enum:
+ - fsl,imx6sx-sdma
+ - fsl,imx6sl-sdma
+ - const: fsl,imx6q-sdma
+ - items:
+ - const: fsl,imx6ul-sdma
+ - const: fsl,imx6q-sdma
+ - const: fsl,imx35-sdma
+ - items:
+ - const: fsl,imx6sll-sdma
+ - const: fsl,imx6ul-sdma
+ - items:
+ - const: fsl,imx8mq-sdma
+ - const: fsl,imx7d-sdma
+ - items:
+ - enum:
+ - fsl,imx8mp-sdma
+ - fsl,imx8mn-sdma
+ - fsl,imx8mm-sdma
+ - const: fsl,imx8mq-sdma
+ - items:
+ - enum:
+ - fsl,imx25-sdma
+ - fsl,imx31-sdma
+ - fsl,imx35-sdma
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ fsl,sdma-ram-script-name:
+ $ref: /schemas/types.yaml#/definitions/string
+ description: Should contain the full path of SDMA RAM scripts firmware.
+
+ "#dma-cells":
+ const: 3
+ description: |
+ The first cell: request/event ID
+
+ The second cell: peripheral types ID
+ enum:
+ - MCU domain SSI: 0
+ - Shared SSI: 1
+ - MMC: 2
+ - SDHC: 3
+ - MCU domain UART: 4
+ - Shared UART: 5
+ - FIRI: 6
+ - MCU domain CSPI: 7
+ - Shared CSPI: 8
+ - SIM: 9
+ - ATA: 10
+ - CCM: 11
+ - External peripheral: 12
+ - Memory Stick Host Controller: 13
+ - Shared Memory Stick Host Controller: 14
+ - DSP: 15
+ - Memory: 16
+ - FIFO type Memory: 17
+ - SPDIF: 18
+ - IPU Memory: 19
+ - ASRC: 20
+ - ESAI: 21
+ - SSI Dual FIFO: 22
+ description: needs firmware more than ver 2
+ - Shared ASRC: 23
+ - SAI: 24
+ - HDMI Audio: 25
+
+ The third cell: transfer priority ID
+ enum:
+ - High: 0
+ - Medium: 1
+ - Low: 2
+
+ gpr:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: The phandle to the General Purpose Register (GPR) node
+
+ fsl,sdma-event-remap:
+ $ref: /schemas/types.yaml#/definitions/uint32-matrix
+ maxItems: 2
+ items:
+ items:
+ - description: GPR register offset
+ - description: GPR register shift
+ - description: GPR register value
+ description: |
+ Register bits of sdma event remap, the format is <reg shift val>.
+ The order is <RX>, <TX>.
+
+ clocks:
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: ipg
+ - const: ahb
+
+ iram:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: The phandle to the On-chip RAM (OCRAM) node.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - fsl,sdma-ram-script-name
+
+additionalProperties: false
+
+examples:
+ - |
+ sdma: dma-controller@83fb0000 {
+ compatible = "fsl,imx51-sdma", "fsl,imx35-sdma";
+ reg = <0x83fb0000 0x4000>;
+ interrupts = <6>;
+ #dma-cells = <3>;
+ fsl,sdma-ram-script-name = "sdma-imx51.bin";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt b/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt
deleted file mode 100644
index 12c316ff4834..000000000000
--- a/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt
+++ /dev/null
@@ -1,118 +0,0 @@
-* Freescale Smart Direct Memory Access (SDMA) Controller for i.MX
-
-Required properties:
-- compatible : Should be one of
- "fsl,imx25-sdma"
- "fsl,imx31-sdma", "fsl,imx31-to1-sdma", "fsl,imx31-to2-sdma"
- "fsl,imx35-sdma", "fsl,imx35-to1-sdma", "fsl,imx35-to2-sdma"
- "fsl,imx51-sdma"
- "fsl,imx53-sdma"
- "fsl,imx6q-sdma"
- "fsl,imx7d-sdma"
- "fsl,imx6ul-sdma"
- "fsl,imx8mq-sdma"
- "fsl,imx8mm-sdma"
- "fsl,imx8mn-sdma"
- "fsl,imx8mp-sdma"
- The -to variants should be preferred since they allow to determine the
- correct ROM script addresses needed for the driver to work without additional
- firmware.
-- reg : Should contain SDMA registers location and length
-- interrupts : Should contain SDMA interrupt
-- #dma-cells : Must be <3>.
- The first cell specifies the DMA request/event ID. See details below
- about the second and third cell.
-- fsl,sdma-ram-script-name : Should contain the full path of SDMA RAM
- scripts firmware
-
-The second cell of dma phandle specifies the peripheral type of DMA transfer.
-The full ID of peripheral types can be found below.
-
- ID transfer type
- ---------------------
- 0 MCU domain SSI
- 1 Shared SSI
- 2 MMC
- 3 SDHC
- 4 MCU domain UART
- 5 Shared UART
- 6 FIRI
- 7 MCU domain CSPI
- 8 Shared CSPI
- 9 SIM
- 10 ATA
- 11 CCM
- 12 External peripheral
- 13 Memory Stick Host Controller
- 14 Shared Memory Stick Host Controller
- 15 DSP
- 16 Memory
- 17 FIFO type Memory
- 18 SPDIF
- 19 IPU Memory
- 20 ASRC
- 21 ESAI
- 22 SSI Dual FIFO (needs firmware ver >= 2)
- 23 Shared ASRC
- 24 SAI
-
-The third cell specifies the transfer priority as below.
-
- ID transfer priority
- -------------------------
- 0 High
- 1 Medium
- 2 Low
-
-Optional properties:
-
-- gpr : The phandle to the General Purpose Register (GPR) node.
-- fsl,sdma-event-remap : Register bits of sdma event remap, the format is
- <reg shift val>.
- reg is the GPR register offset.
- shift is the bit position inside the GPR register.
- val is the value of the bit (0 or 1).
-
-Examples:
-
-sdma@83fb0000 {
- compatible = "fsl,imx51-sdma", "fsl,imx35-sdma";
- reg = <0x83fb0000 0x4000>;
- interrupts = <6>;
- #dma-cells = <3>;
- fsl,sdma-ram-script-name = "sdma-imx51.bin";
-};
-
-DMA clients connected to the i.MX SDMA controller must use the format
-described in the dma.txt file.
-
-Examples:
-
-ssi2: ssi@70014000 {
- compatible = "fsl,imx51-ssi", "fsl,imx21-ssi";
- reg = <0x70014000 0x4000>;
- interrupts = <30>;
- clocks = <&clks 49>;
- dmas = <&sdma 24 1 0>,
- <&sdma 25 1 0>;
- dma-names = "rx", "tx";
- fsl,fifo-depth = <15>;
-};
-
-Using the fsl,sdma-event-remap property:
-
-If we want to use SDMA on the SAI1 port on a MX6SX:
-
-&sdma {
- gpr = <&gpr>;
- /* SDMA events remap for SAI1_RX and SAI1_TX */
- fsl,sdma-event-remap = <0 15 1>, <0 16 1>;
-};
-
-The fsl,sdma-event-remap property in this case has two values:
-- <0 15 1> means that the offset is 0, so GPR0 is the register of the
-SDMA remap. Bit 15 of GPR0 selects between UART4_RX and SAI1_RX.
-Setting bit 15 to 1 selects SAI1_RX.
-- <0 16 1> means that the offset is 0, so GPR0 is the register of the
-SDMA remap. Bit 16 of GPR0 selects between UART4_TX and SAI1_TX.
-Setting bit 16 to 1 selects SAI1_TX.
--
2.37.1
On Mon, 31 Oct 2022 18:50:27 +0800, Joy Zou wrote:
> Convert the i.MX SDMA binding to DT schema format using json-schema.
>
> The compatibles fsl,imx31-to1-sdma, fsl,imx31-to2-sdma, fsl,imx35-to1-sdma
> and fsl,imx35-to2-sdma are not used. So need to delete it. The compatibles
> fsl,imx50-sdma, fsl,imx6sll-sdma and fsl,imx6sl-sdma are added. The
> original binding don't list all compatible used.
>
> In addition, add new peripheral types HDMI Audio.
>
> Signed-off-by: Joy Zou <[email protected]>
> ---
> Changes in v9:
> add the dma-common quotes.
> delete the dma-controller quotes.
>
> Changes in v8:
> add the dma-controller quotes.
> delete #dma-cells in required.
>
> Changes in v6:
> delete tag Acked-by from commit message.
>
> Changes in v5:
> modify the commit message fromat.
> add additionalProperties, because delete the quotes in patch v4.
> delete unevaluatedProperties due to similar to additionalProperties.
> modification fsl,sdma-event-remap items and description.
>
> Changes in v4:
> modify the commit message.
> delete the quotes in patch.
> modify the compatible in patch.
> delete maxitems and add items for clock-names property.
> add iram property.
>
> Changes in v3:
> modify the commit message.
> modify the filename.
> modify the maintainer.
> delete the unnecessary comment.
> modify the compatible and run dt_binding_check and dtbs_check.
> add clocks and clock-names property.
> delete the reg description and add maxItems.
> delete the interrupts description and add maxItems.
> add ref for gpr property.
> modify the fsl,sdma-event-remap ref type and add items.
> delete consumer example.
>
> Changes in v2:
> convert imx sdma bindings to DT schema.
> ---
> .../devicetree/bindings/dma/fsl,imx-sdma.yaml | 149 ++++++++++++++++++
> .../devicetree/bindings/dma/fsl-imx-sdma.txt | 118 --------------
> 2 files changed, 149 insertions(+), 118 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml
> delete mode 100644 Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt
>
Reviewed-by: Rob Herring <[email protected]>
On 31/10/2022 06:50, Joy Zou wrote:
> Convert the i.MX SDMA binding to DT schema format using json-schema.
>
> The compatibles fsl,imx31-to1-sdma, fsl,imx31-to2-sdma, fsl,imx35-to1-sdma
> and fsl,imx35-to2-sdma are not used. So need to delete it. The compatibles
> fsl,imx50-sdma, fsl,imx6sll-sdma and fsl,imx6sl-sdma are added. The
> original binding don't list all compatible used.
>
> In addition, add new peripheral types HDMI Audio.
>
> Signed-off-by: Joy Zou <[email protected]>
> ---
> Changes in v9:
> add the dma-common quotes.
> delete the dma-controller quotes.
I have no clue what you are doing here... Do you know what are "quotes"?
I linked last time explanation of "quotes", so did you read it?
>
> Changes in v8:
> add the dma-controller quotes.
> delete #dma-cells in required.
>
> Changes in v6:
> delete tag Acked-by from commit message.
>
> Changes in v5:
> modify the commit message fromat.
> add additionalProperties, because delete the quotes in patch v4.
> delete unevaluatedProperties due to similar to additionalProperties.
> modification fsl,sdma-event-remap items and description.
>
> Changes in v4:
> modify the commit message.
> delete the quotes in patch.
> modify the compatible in patch.
> delete maxitems and add items for clock-names property.
> add iram property.
>
> Changes in v3:
> modify the commit message.
> modify the filename.
> modify the maintainer.
> delete the unnecessary comment.
> modify the compatible and run dt_binding_check and dtbs_check.
> add clocks and clock-names property.
> delete the reg description and add maxItems.
> delete the interrupts description and add maxItems.
> add ref for gpr property.
> modify the fsl,sdma-event-remap ref type and add items.
> delete consumer example.
>
> Changes in v2:
> convert imx sdma bindings to DT schema.
> ---
> .../devicetree/bindings/dma/fsl,imx-sdma.yaml | 149 ++++++++++++++++++
> .../devicetree/bindings/dma/fsl-imx-sdma.txt | 118 --------------
> 2 files changed, 149 insertions(+), 118 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml
> delete mode 100644 Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt
>
> diff --git a/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml b/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml
> new file mode 100644
> index 000000000000..95d0391a1f39
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml
> @@ -0,0 +1,149 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/dma/fsl,imx-sdma.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Freescale Smart Direct Memory Access (SDMA) Controller for i.MX
> +
> +maintainers:
> + - Joy Zou <[email protected]>
> +
> +allOf:
> + - $ref: dma-common.yaml#
That's wrong. This should be dma-controller. Why this was changed?
Best regards,
Krzysztof
> -----Original Message-----
> From: Krzysztof Kozlowski <[email protected]>
> Sent: 2022??11??3?? 21:54
> To: Joy Zou <[email protected]>; [email protected]; [email protected];
> [email protected]; [email protected];
> [email protected]; [email protected]; [email protected]
> Cc: S.J. Wang <[email protected]>; [email protected];
> [email protected]; [email protected]; Peng Fan
> <[email protected]>; [email protected]; [email protected]; Hongxing Zhu
> <[email protected]>; dl-linux-imx <[email protected]>;
> [email protected]; [email protected];
> [email protected]; [email protected]
> Subject: [EXT] Re: [PATCH v9 1/2] dt-bindings: fsl-imx-sdma: Convert imx sdma
> to DT schema
>
> Caution: EXT Email
>
> On 31/10/2022 06:50, Joy Zou wrote:
> > Convert the i.MX SDMA binding to DT schema format using json-schema.
> >
> > The compatibles fsl,imx31-to1-sdma, fsl,imx31-to2-sdma,
> > fsl,imx35-to1-sdma and fsl,imx35-to2-sdma are not used. So need to
> > delete it. The compatibles fsl,imx50-sdma, fsl,imx6sll-sdma and
> > fsl,imx6sl-sdma are added. The original binding don't list all compatible used.
> >
> > In addition, add new peripheral types HDMI Audio.
> >
> > Signed-off-by: Joy Zou <[email protected]>
> > ---
> > Changes in v9:
> > add the dma-common quotes.
> > delete the dma-controller quotes.
>
> I have no clue what you are doing here... Do you know what are "quotes"?
> I linked last time explanation of "quotes", so did you read it?
Thank you very much for your comments.
I confused quote and quotes. Could I confirm my understand??
The quote means $ref: ?
The quotes means a symbol "?
>
>
> >
> > Changes in v8:
> > add the dma-controller quotes.
> > delete #dma-cells in required.
> >
> > Changes in v6:
> > delete tag Acked-by from commit message.
> >
> > Changes in v5:
> > modify the commit message fromat.
> > add additionalProperties, because delete the quotes in patch v4.
> > delete unevaluatedProperties due to similar to additionalProperties.
> > modification fsl,sdma-event-remap items and description.
> >
> > Changes in v4:
> > modify the commit message.
> > delete the quotes in patch.
> > modify the compatible in patch.
> > delete maxitems and add items for clock-names property.
> > add iram property.
> >
> > Changes in v3:
> > modify the commit message.
> > modify the filename.
> > modify the maintainer.
> > delete the unnecessary comment.
> > modify the compatible and run dt_binding_check and dtbs_check.
> > add clocks and clock-names property.
> > delete the reg description and add maxItems.
> > delete the interrupts description and add maxItems.
> > add ref for gpr property.
> > modify the fsl,sdma-event-remap ref type and add items.
> > delete consumer example.
> >
> > Changes in v2:
> > convert imx sdma bindings to DT schema.
> > ---
> > .../devicetree/bindings/dma/fsl,imx-sdma.yaml | 149
> > ++++++++++++++++++ .../devicetree/bindings/dma/fsl-imx-sdma.txt |
> > 118 --------------
> > 2 files changed, 149 insertions(+), 118 deletions(-) create mode
> > 100644 Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml
> > delete mode 100644
> > Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt
> >
> > diff --git a/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml
> > b/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml
> > new file mode 100644
> > index 000000000000..95d0391a1f39
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml
> > @@ -0,0 +1,149 @@
> > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause %YAML 1.2
> > +---
> > +$id:
> > +https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevi
> >
> +cetree.org%2Fschemas%2Fdma%2Ffsl%2Cimx-sdma.yaml%23&data=05
> %7C01%
> >
> +7Cjoy.zou%40nxp.com%7Cd8f785d11ac042ebd7d908dabda2d753%7C686ea
> 1d3bc2b
> >
> +4c6fa92cd99c5c301635%7C0%7C0%7C638030804342124191%7CUnknown
> %7CTWFpbGZ
> >
> +sb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6M
> n0%
> >
> +3D%7C3000%7C%7C%7C&sdata=3XpKUGv751na%2BV4OYDQEvGQxeeT
> 4UbW0wizQkM
> > +yfx4k%3D&reserved=0
> > +$schema:
> > +https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevi
> >
> +cetree.org%2Fmeta-schemas%2Fcore.yaml%23&data=05%7C01%7Cjoy.z
> ou%4
> >
> +0nxp.com%7Cd8f785d11ac042ebd7d908dabda2d753%7C686ea1d3bc2b4c6
> fa92cd99
> >
> +c5c301635%7C0%7C0%7C638030804342124191%7CUnknown%7CTWFpbG
> Zsb3d8eyJWIj
> >
> +oiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3
> 000%7
> >
> +C%7C%7C&sdata=nnBXK4c%2FiA1ncohiak4CXEQGbp5uhDq835RK9%2B
> BYdJw%3D&
> > +amp;reserved=0
> > +
> > +title: Freescale Smart Direct Memory Access (SDMA) Controller for
> > +i.MX
> > +
> > +maintainers:
> > + - Joy Zou <[email protected]>
> > +
> > +allOf:
> > + - $ref: dma-common.yaml#
>
> That's wrong. This should be dma-controller. Why this was changed?
Thank you very much for your comments.
I remember your comments in patch v6.
"The device schemas do not need to enforce the name. The dma-controller schema enforces it, so what is missing here is to reference it."
So I change it.
Should I use dma-controller?
BR
Joy Zou
>
>
>
> Best regards,
> Krzysztof
On 04/11/2022 01:10, Joy Zou wrote:
>
>> -----Original Message-----
>> From: Krzysztof Kozlowski <[email protected]>
>> Sent: 2022年11月3日 21:54
>> To: Joy Zou <[email protected]>; [email protected]; [email protected];
>> [email protected]; [email protected];
>> [email protected]; [email protected]; [email protected]
>> Cc: S.J. Wang <[email protected]>; [email protected];
>> [email protected]; [email protected]; Peng Fan
>> <[email protected]>; [email protected]; [email protected]; Hongxing Zhu
>> <[email protected]>; dl-linux-imx <[email protected]>;
>> [email protected]; [email protected];
>> [email protected]; [email protected]
>> Subject: [EXT] Re: [PATCH v9 1/2] dt-bindings: fsl-imx-sdma: Convert imx sdma
>> to DT schema
>>
>> Caution: EXT Email
>>
>> On 31/10/2022 06:50, Joy Zou wrote:
>>> Convert the i.MX SDMA binding to DT schema format using json-schema.
>>>
>>> The compatibles fsl,imx31-to1-sdma, fsl,imx31-to2-sdma,
>>> fsl,imx35-to1-sdma and fsl,imx35-to2-sdma are not used. So need to
>>> delete it. The compatibles fsl,imx50-sdma, fsl,imx6sll-sdma and
>>> fsl,imx6sl-sdma are added. The original binding don't list all compatible used.
>>>
>>> In addition, add new peripheral types HDMI Audio.
>>>
>>> Signed-off-by: Joy Zou <[email protected]>
>>> ---
>>> Changes in v9:
>>> add the dma-common quotes.
>>> delete the dma-controller quotes.
>>
>> I have no clue what you are doing here... Do you know what are "quotes"?
>> I linked last time explanation of "quotes", so did you read it?
> Thank you very much for your comments.
> I confused quote and quotes. Could I confirm my understand？
> The quote means $ref: ?
No. Quote is:
https://en.wikipedia.org/wiki/Quote
> The quotes means a symbol "?
Yes.
>>
>>
>>>
>>> Changes in v8:
>>> add the dma-controller quotes.
>>> delete #dma-cells in required.
>>>
>>> Changes in v6:
>>> delete tag Acked-by from commit message.
>>>
>>> Changes in v5:
>>> modify the commit message fromat.
>>> add additionalProperties, because delete the quotes in patch v4.
>>> delete unevaluatedProperties due to similar to additionalProperties.
>>> modification fsl,sdma-event-remap items and description.
>>>
>>> Changes in v4:
>>> modify the commit message.
>>> delete the quotes in patch.
>>> modify the compatible in patch.
>>> delete maxitems and add items for clock-names property.
>>> add iram property.
>>>
>>> Changes in v3:
>>> modify the commit message.
>>> modify the filename.
>>> modify the maintainer.
>>> delete the unnecessary comment.
>>> modify the compatible and run dt_binding_check and dtbs_check.
>>> add clocks and clock-names property.
>>> delete the reg description and add maxItems.
>>> delete the interrupts description and add maxItems.
>>> add ref for gpr property.
>>> modify the fsl,sdma-event-remap ref type and add items.
>>> delete consumer example.
>>>
>>> Changes in v2:
>>> convert imx sdma bindings to DT schema.
>>> ---
>>> .../devicetree/bindings/dma/fsl,imx-sdma.yaml | 149
>>> ++++++++++++++++++ .../devicetree/bindings/dma/fsl-imx-sdma.txt |
>>> 118 --------------
>>> 2 files changed, 149 insertions(+), 118 deletions(-) create mode
>>> 100644 Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml
>>> delete mode 100644
>>> Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt
>>>
>>> diff --git a/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml
>>> b/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml
>>> new file mode 100644
>>> index 000000000000..95d0391a1f39
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml
>>> @@ -0,0 +1,149 @@
>>> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause %YAML 1.2
>>> +---
>>> +$id:
>>> +https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevi
>>>
>> +cetree.org%2Fschemas%2Fdma%2Ffsl%2Cimx-sdma.yaml%23&data=05
>> %7C01%
>>>
>> +7Cjoy.zou%40nxp.com%7Cd8f785d11ac042ebd7d908dabda2d753%7C686ea
>> 1d3bc2b
>>>
>> +4c6fa92cd99c5c301635%7C0%7C0%7C638030804342124191%7CUnknown
>> %7CTWFpbGZ
>>>
>> +sb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6M
>> n0%
>>>
>> +3D%7C3000%7C%7C%7C&sdata=3XpKUGv751na%2BV4OYDQEvGQxeeT
>> 4UbW0wizQkM
>>> +yfx4k%3D&reserved=0
>>> +$schema:
>>> +https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevi
>>>
>> +cetree.org%2Fmeta-schemas%2Fcore.yaml%23&data=05%7C01%7Cjoy.z
>> ou%4
>>>
>> +0nxp.com%7Cd8f785d11ac042ebd7d908dabda2d753%7C686ea1d3bc2b4c6
>> fa92cd99
>>>
>> +c5c301635%7C0%7C0%7C638030804342124191%7CUnknown%7CTWFpbG
>> Zsb3d8eyJWIj
>>>
>> +oiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3
>> 000%7
>>>
>> +C%7C%7C&sdata=nnBXK4c%2FiA1ncohiak4CXEQGbp5uhDq835RK9%2B
>> BYdJw%3D&
>>> +amp;reserved=0
>>> +
>>> +title: Freescale Smart Direct Memory Access (SDMA) Controller for
>>> +i.MX
>>> +
>>> +maintainers:
>>> + - Joy Zou <[email protected]>
>>> +
>>> +allOf:
>>> + - $ref: dma-common.yaml#
>>
>> That's wrong. This should be dma-controller. Why this was changed?
> Thank you very much for your comments.
> I remember your comments in patch v6.
> "The device schemas do not need to enforce the name. The dma-controller schema enforces it, so what is missing here is to reference it."
> So I change it.
> Should I use dma-controller?
Yes, like all other bindings.
Best regards,
Krzysztof