Add the new compatible for HiSilicon common i2c.
Signed-off-by: Weilong Chen <[email protected]>
---
Change since v4:
- Add description for SoC specific compatibles.
- Use the clock binding.
- Fix decimal, space, case, unused labels.
Link: https://lore.kernel.org/lkml/[email protected]/T/#m4e1c915ead04f4e2e48d69131053a966801625db
.../bindings/i2c/hisilicon,hisi-i2c.yaml | 72 +++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 73 insertions(+)
create mode 100644 Documentation/devicetree/bindings/i2c/hisilicon,hisi-i2c.yaml
diff --git a/Documentation/devicetree/bindings/i2c/hisilicon,hisi-i2c.yaml b/Documentation/devicetree/bindings/i2c/hisilicon,hisi-i2c.yaml
new file mode 100644
index 000000000000..b06eb8cb88bc
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/hisilicon,hisi-i2c.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/i2c/hisilicon,hisi-i2c.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: HiSilicon common IIC controller Device Tree Bindings
+
+maintainers:
+ - [email protected]
+
+allOf:
+ - $ref: /schemas/i2c/i2c-controller.yaml#
+
+properties:
+ compatible:
+ const: hisilicon,hisi-i2c
+ description:
+ The HiSilicon common IIC controller can be used for many different
+ types of SoC such as Huawei Ascend AI series chips. We use the common
+ string (hisi) for specific compatibles to avoid confusion caused by a
+ lot of different names.
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-frequency:
+ default: 400000
+
+ i2c-sda-falling-time-ns:
+ default: 343
+
+ i2c-scl-falling-time-ns:
+ default: 203
+
+ i2c-sda-hold-time-ns:
+ default: 830
+
+ i2c-scl-rising-time-ns:
+ default: 365
+
+ i2c-digital-filter-width-ns:
+ default: 0
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ i2c@5038b0000 {
+ compatible = "hisilicon,hisi-i2c";
+ reg = <0x38b0000 0x10000>;
+ interrupts = <0x0 120 0x4>;
+ i2c-sda-falling-time-ns = <56>;
+ i2c-scl-falling-time-ns = <56>;
+ i2c-sda-hold-time-ns = <56>;
+ i2c-scl-rising-time-ns = <56>;
+ i2c-digital-filter;
+ i2c-digital-filter-width-ns = <0x0>;
+ clocks = <&alg_clk>;
+ clock-frequency = <400000>;
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index d213a831133f..4c928a444e4b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9155,6 +9155,7 @@ L: [email protected]
S: Maintained
W: https://www.hisilicon.com
F: drivers/i2c/busses/i2c-hisi.c
+F: Documentation/devicetree/bindings/i2c/hisilicon,hisi-i2c.yaml
HISILICON LPC BUS DRIVER
M: [email protected]
--
2.31.GIT
On 2022/9/20 15:22, Weilong Chen wrote:
> Add the new compatible for HiSilicon common i2c.
>
> Signed-off-by: Weilong Chen <[email protected]>
Reviewed-by: Yicong Yang <[email protected]>
> ---
> Change since v4:
> - Add description for SoC specific compatibles.
> - Use the clock binding.
> - Fix decimal, space, case, unused labels.
> Link: https://lore.kernel.org/lkml/[email protected]/T/#m4e1c915ead04f4e2e48d69131053a966801625db
>
> .../bindings/i2c/hisilicon,hisi-i2c.yaml | 72 +++++++++++++++++++
> MAINTAINERS | 1 +
> 2 files changed, 73 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/i2c/hisilicon,hisi-i2c.yaml
>
> diff --git a/Documentation/devicetree/bindings/i2c/hisilicon,hisi-i2c.yaml b/Documentation/devicetree/bindings/i2c/hisilicon,hisi-i2c.yaml
> new file mode 100644
> index 000000000000..b06eb8cb88bc
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/i2c/hisilicon,hisi-i2c.yaml
> @@ -0,0 +1,72 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/i2c/hisilicon,hisi-i2c.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: HiSilicon common IIC controller Device Tree Bindings
> +
> +maintainers:
> + - [email protected]
> +
> +allOf:
> + - $ref: /schemas/i2c/i2c-controller.yaml#
> +
> +properties:
> + compatible:
> + const: hisilicon,hisi-i2c
> + description:
> + The HiSilicon common IIC controller can be used for many different
> + types of SoC such as Huawei Ascend AI series chips. We use the common
> + string (hisi) for specific compatibles to avoid confusion caused by a
> + lot of different names.
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> + clocks:
> + maxItems: 1
> +
> + clock-frequency:
> + default: 400000
> +
> + i2c-sda-falling-time-ns:
> + default: 343
> +
> + i2c-scl-falling-time-ns:
> + default: 203
> +
> + i2c-sda-hold-time-ns:
> + default: 830
> +
> + i2c-scl-rising-time-ns:
> + default: 365
> +
> + i2c-digital-filter-width-ns:
> + default: 0
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> +
> +unevaluatedProperties: false
> +
> +examples:
> + - |
> + i2c@5038b0000 {
> + compatible = "hisilicon,hisi-i2c";
> + reg = <0x38b0000 0x10000>;
> + interrupts = <0x0 120 0x4>;
> + i2c-sda-falling-time-ns = <56>;
> + i2c-scl-falling-time-ns = <56>;
> + i2c-sda-hold-time-ns = <56>;
> + i2c-scl-rising-time-ns = <56>;
> + i2c-digital-filter;
> + i2c-digital-filter-width-ns = <0x0>;
> + clocks = <&alg_clk>;
> + clock-frequency = <400000>;
> + };
> diff --git a/MAINTAINERS b/MAINTAINERS
> index d213a831133f..4c928a444e4b 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -9155,6 +9155,7 @@ L: [email protected]
> S: Maintained
> W: https://www.hisilicon.com
> F: drivers/i2c/busses/i2c-hisi.c
> +F: Documentation/devicetree/bindings/i2c/hisilicon,hisi-i2c.yaml
>
> HISILICON LPC BUS DRIVER
> M: [email protected]
>
On Tue, Sep 20, 2022 at 03:22:15PM +0800, Weilong Chen wrote:
> Add the new compatible for HiSilicon common i2c.
>
> Signed-off-by: Weilong Chen <[email protected]>
> ---
> Change since v4:
> - Add description for SoC specific compatibles.
A description is not sufficient. A single compatible is saying all SoCs
have exactly the same features and bugs.
> - Use the clock binding.
> - Fix decimal, space, case, unused labels.
> Link: https://lore.kernel.org/lkml/[email protected]/T/#m4e1c915ead04f4e2e48d69131053a966801625db
>
> .../bindings/i2c/hisilicon,hisi-i2c.yaml | 72 +++++++++++++++++++
> MAINTAINERS | 1 +
> 2 files changed, 73 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/i2c/hisilicon,hisi-i2c.yaml
>
> diff --git a/Documentation/devicetree/bindings/i2c/hisilicon,hisi-i2c.yaml b/Documentation/devicetree/bindings/i2c/hisilicon,hisi-i2c.yaml
> new file mode 100644
> index 000000000000..b06eb8cb88bc
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/i2c/hisilicon,hisi-i2c.yaml
> @@ -0,0 +1,72 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/i2c/hisilicon,hisi-i2c.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: HiSilicon common IIC controller Device Tree Bindings
> +
> +maintainers:
> + - [email protected]
Needs to be a name and email.
> +
> +allOf:
> + - $ref: /schemas/i2c/i2c-controller.yaml#
> +
> +properties:
> + compatible:
> + const: hisilicon,hisi-i2c
> + description:
> + The HiSilicon common IIC controller can be used for many different
> + types of SoC such as Huawei Ascend AI series chips. We use the common
> + string (hisi) for specific compatibles to avoid confusion caused by a
> + lot of different names.
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> + clocks:
> + maxItems: 1
> +
> + clock-frequency:
> + default: 400000
> +
> + i2c-sda-falling-time-ns:
> + default: 343
> +
> + i2c-scl-falling-time-ns:
> + default: 203
> +
> + i2c-sda-hold-time-ns:
> + default: 830
> +
> + i2c-scl-rising-time-ns:
> + default: 365
> +
> + i2c-digital-filter-width-ns:
> + default: 0
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> +
> +unevaluatedProperties: false
> +
> +examples:
> + - |
> + i2c@5038b0000 {
> + compatible = "hisilicon,hisi-i2c";
> + reg = <0x38b0000 0x10000>;
> + interrupts = <0x0 120 0x4>;
> + i2c-sda-falling-time-ns = <56>;
> + i2c-scl-falling-time-ns = <56>;
> + i2c-sda-hold-time-ns = <56>;
> + i2c-scl-rising-time-ns = <56>;
> + i2c-digital-filter;
> + i2c-digital-filter-width-ns = <0x0>;
> + clocks = <&alg_clk>;
> + clock-frequency = <400000>;
> + };
> diff --git a/MAINTAINERS b/MAINTAINERS
> index d213a831133f..4c928a444e4b 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -9155,6 +9155,7 @@ L: [email protected]
> S: Maintained
> W: https://www.hisilicon.com
> F: drivers/i2c/busses/i2c-hisi.c
> +F: Documentation/devicetree/bindings/i2c/hisilicon,hisi-i2c.yaml
>
> HISILICON LPC BUS DRIVER
> M: [email protected]
> --
> 2.31.GIT
>
>