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Subject[PATCH next v7 2/2] dt-bindings: i2c: add entry for hisilicon,i2c-ascend910
Date
Add the new compatible for HiSilicon i2c.

Signed-off-by: Weilong Chen <chenweilong@huawei.com>
---
Change since v6:
- Rename to hisilicon,i2c-ascend910.yaml
- Change all IIC to I2C
- Add maintainer name
Link: https://lore.kernel.org/lkml/7520818b-de40-7f2a-1b03-b1dcd29a2023@huawei.com/T/#ma89d78cef45e7ac6f2c6251ed958e8658e5c1eb5

.../bindings/i2c/hisilicon,i2c-ascend910.yaml | 70 +++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 71 insertions(+)
create mode 100644 Documentation/devicetree/bindings/i2c/hisilicon,i2c-ascend910.yaml

diff --git a/Documentation/devicetree/bindings/i2c/hisilicon,i2c-ascend910.yaml b/Documentation/devicetree/bindings/i2c/hisilicon,i2c-ascend910.yaml
new file mode 100644
index 000000000000..f4f532d69670
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/hisilicon,i2c-ascend910.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/i2c/hisilicon,i2c-xxx.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: HiSilicon common I2C controller Device Tree Bindings
+
+maintainers:
+ - Yicong Yang <yangyicong@hisilicon.com>
+
+allOf:
+ - $ref: /schemas/i2c/i2c-controller.yaml#
+
+properties:
+ compatible:
+ const: hisilicon,i2c-ascend910
+ description:
+ The HiSilicon common I2C controller can be used for many different
+ types of SoC such as Huawei Ascend AI series chips.
+
+ 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,i2c-ascend910";
+ 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 ad32dc9c4822..961e4442fb08 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9211,6 +9211,7 @@ M: Yicong Yang <yangyicong@hisilicon.com>
L: linux-i2c@vger.kernel.org
S: Maintained
W: https://www.hisilicon.com
+F: Documentation/devicetree/bindings/i2c/hisilicon,i2c-xxx.yaml
F: drivers/i2c/busses/i2c-hisi.c

HISILICON LPC BUS DRIVER
--
2.31.GIT
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