From: Ryan Chen <ryan_chen@aspeedtech.com>
To: Ryan Chen <ryan_chen@aspeedtech.com>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Joel Stanley <joel@jms.id.au>, Andrew Jeffery <andrew@aj.id.au>,
Philipp Zabel <p.zabel@pengutronix.de>,
<openbmc@lists.ozlabs.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-aspeed@lists.ozlabs.org>, <linux-kernel@vger.kernel.org>
Subject: [PATCH v5 1/2] dt-bindings: i2c: Add support for ASPEED i2Cv2
Date: Mon, 20 Feb 2023 14:17:44 +0800 [thread overview]
Message-ID: <20230220061745.1973981-2-ryan_chen@aspeedtech.com> (raw)
In-Reply-To: <20230220061745.1973981-1-ryan_chen@aspeedtech.com>
AST2600 support new register set for I2Cv2 controller, add bindings
document to support driver of i2cv2 new register mode controller.
Signed-off-by: Ryan Chen <ryan_chen@aspeedtech.com>
---
.../devicetree/bindings/i2c/aspeed,i2cv2.yaml | 83 +++++++++++++++++++
1 file changed, 83 insertions(+)
create mode 100644 Documentation/devicetree/bindings/i2c/aspeed,i2cv2.yaml
diff --git a/Documentation/devicetree/bindings/i2c/aspeed,i2cv2.yaml b/Documentation/devicetree/bindings/i2c/aspeed,i2cv2.yaml
new file mode 100644
index 000000000000..913fb45d5fbe
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/aspeed,i2cv2.yaml
@@ -0,0 +1,83 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/aspeed,i2cv2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ASPEED I2Cv2 Controller on the AST26XX SoCs
+
+maintainers:
+ - Ryan Chen <ryan_chen@aspeedtech.com>
+
+allOf:
+ - $ref: /schemas/i2c/i2c-controller.yaml#
+
+properties:
+ compatible:
+ enum:
+ - aspeed,ast2600-i2cv2
+
+ reg:
+ minItems: 1
+ items:
+ - description: address offset and range of register
+ - description: address offset and range of buffer register
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+ description:
+ Reference clock for the I2C bus
+
+ resets:
+ maxItems: 1
+
+ clock-frequency:
+ description:
+ Desired I2C bus clock frequency in Hz. default 100khz.
+
+ multi-master:
+ type: boolean
+ description:
+ states that there is another master active on this bus
+
+ timeout:
+ type: boolean
+ description: Enable i2c bus timeout for master/slave (35ms)
+
+ byte-mode:
+ type: boolean
+ description: Force i2c driver use byte mode transmit
+
+ buff-mode:
+ type: boolean
+ description: Force i2c driver use buffer mode transmit
+
+ aspeed,gr:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: The phandle of i2c global register node.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - resets
+ - aspeed,gr
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/ast2600-clock.h>
+ i2c: i2c-bus@80 {
+ compatible = "aspeed,ast2600-i2cv2";
+ reg = <0x80 0x80>, <0xc00 0x20>;
+ interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
+ aspeed,gr = <&i2c_gr>;
+ clocks = <&syscon ASPEED_CLK_APB2>;
+ resets = <&syscon ASPEED_RESET_I2C>;
+ };
--
2.34.1
next prev parent reply other threads:[~2023-02-20 6:24 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-20 6:17 [PATCH v5 0/2] Add ASPEED AST2600 I2Cv2 controller driver Ryan Chen
2023-02-20 6:17 ` Ryan Chen [this message]
2023-02-20 8:28 ` [PATCH v5 1/2] dt-bindings: i2c: Add support for ASPEED i2Cv2 Jeremy Kerr
2023-02-20 9:50 ` Ryan Chen
2023-02-20 11:24 ` Jeremy Kerr
2023-02-21 3:32 ` Ryan Chen
2023-02-22 1:14 ` Dhananjay Phadke
2023-02-22 1:30 ` Jeremy Kerr
[not found] ` <676c7777-635c-cc1f-b919-d33e84a45442@linaro.org>
2023-02-21 2:43 ` Ryan Chen
[not found] ` <80d873d4-d813-6c25-8f47-f5ff9af718ec@linaro.org>
2023-02-21 10:42 ` Ryan Chen
[not found] ` <c0ac0ab3-87fc-e74a-b4e2-3cf1b3a8a5e2@linaro.org>
2023-02-22 2:59 ` Ryan Chen
[not found] ` <94238c42-1250-4d51-86e5-0a960dea0ffc@linaro.org>
2023-02-22 10:31 ` Ryan Chen
[not found] ` <b7ca24ea-a265-81cb-3da6-19f938b35878@linaro.org>
2023-02-22 10:47 ` Ryan Chen
[not found] ` <5c255eb3-ec9e-d66f-4a2b-ccc32edf5672@linaro.org>
2023-02-23 10:25 ` Ryan Chen
2023-02-20 6:17 ` [PATCH v5 2/2] i2c: aspeed: support ast2600 i2cv2 new register mode driver Ryan Chen
[not found] ` <63986fb1-f8d4-f348-bae9-72e08369213b@linaro.org>
2023-02-22 3:36 ` Ryan Chen
[not found] ` <77480142-a2c0-f6da-af0e-d3f01f72ac53@linaro.org>
2023-02-23 0:58 ` Ryan Chen
[not found] ` <54ef0dee-30dc-3ba9-d2f7-8270204b5505@linaro.org>
2023-02-20 9:56 ` [PATCH v5 0/2] Add ASPEED AST2600 I2Cv2 controller driver Ryan Chen
[not found] ` <abec828b-9b34-fc5a-cd36-8be6f20dfd25@linaro.org>
2023-02-21 1:12 ` Ryan Chen
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